Danfoss VLT HVAC Drives Provide Critical Function with Condition Instruction Manual

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1 Danfoss VLT HVAC Drives Provide Critical Function with Condition

2 Specifications

8 Documents / Resources

8.1 References

Danfoss VLT HVAC Drives Provide Critical Function with Condition

Specifications

Voltage: 200-240V, 380-480V, 525-600V, 525-690V, 450-1400V
Power Range: 1.1kW – 1400kW

FLN Controller: RS-485 compatible, half duplex, operating rate of 4800 or 9600 baud
Node Address System: Allows up to 96 devices on one system

Safety and Caution

Rotating shafts and electrical equipment can be hazardous. All electrical work should conform to National Electrical Code (NEC) and local regulations. Installation, start-up, and maintenance should be done by qualified personnel. Proper grounding and branch circuit protection are essential for safety.

Installation

Ensure proper grounding and branch circuit protection according to NEC and local codes. – Disconnect the frequency converter from mains before carrying out maintenance to avoid electrical shock hazards.Wait for the specified time after
disconnecting power before servicing the frequency converter.

FLN Communication

The FLN controller is RS-485 compatible with a baud rate of 4800 or 9600.
Use shielded twisted pair wiring for communication.

The node address system allows up to 96 devices on one system.

Operation

The Danfoss VLT is a programmable frequency converter forcontrolling 3-phase standard induction motors in the HVAC industry.

The control card has FLN communication protocol software built-in.
Optical isolation provides fault tolerance and noise immunity.

FAQs

Q: What is the purpose of the Electronic Thermal Relay (ETR) in UL listed VLTs?
A: The ETR provides Class 20 motor overload protection in single motor applications, following NEC guidelines when specific parameters are set.

Q: How many devices can be used on the FLN system?
A: The node address system allows up to 96 devices to be used on the FLN system.

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VLT® HVAC Drive FLN Operating Instructions
Cont ent s
1 I nt roduct ion
Safety I nt roduct ion About this Manual Assumptions HP/ kW conversion
2 VLT Funct ional Feat ur es
Drive Operation (03-14) Motor and Drive Thermal Protection (15, 16, 18) Set-up 1-4 and Day/ Night operation (17, 29) Current Monitoring and Limits (19) Direction of Rotation (22) Start/ Stop (23) Freeze Mode (25, 26) Coast (27, 28) Motor Ramp-up and Ramp-down Rate (31, 32) Hand/ Auto Modes (34) CMD RUN STOP (35) Bus Functions (36, 37) Jog Frequency and Command (38, 39) Relay Out 1, 2 (40, 41, 43, 44) PID Control Functions (61-65) Sleep Mode (59) Terminals 53, 54, (87-88) Warnings and Alarms (90-94) Error Status (99)

3 VLT Net w or k St r at egies
Strategy one Strategy two Strategy three Strategy four
4 VLT Special Funct ions
Special functions Analog input monitoring Drive relay control
5 Net w or k Connect ion
MG.11.Z2.02 – VLT is a registered Danfoss trademark

Contents
3 3 4 4 4 5
7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 9 9 9 9
11 11 11 12 12
15 15 15 15
17
1

Contents

6 Par am et er s
Parameter settings
7 St ar t -up and Tr oubleshoot ing
Start-up Start-up of FLN control Troubleshooting Faults, warnings and alarms Alarms and warnings
I ndex

VLT® HVAC Drive FLN Operating I nstructions
19 19
21 21 21 21 21 21 30

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions

1 Introduction

1 I nt roduct ion
1
1.1 Safet y and Caut ion
1.1.1 Saf et y

Rotating shafts and electrical equipment can be hazardous. Therefore, it is strongly recommended that all electrical work conform to National Electrical Code (NEC) and all local regulations. Installation, start-up and maintenance should be performed only by qualified personnel.

Factory recommended procedures, included in this manual, should be followed. Always disconnect electrical power before working on the unit. Although shaft couplings or belt drives are generally not furnished by the manufacturer, rotating shafts, couplings and belts must be protected with securely mounted metal guards that are of sufficient thickness to provide protection against flying particles such as keys, bolts and coupling parts. Even when the motor is stopped, it should be considered “alive” as long as its controller is energized. Automatic circuits may start the motor at any time. Keep hands away from the output shaft until the motor has completely stopped and power is disconnected from the controller. Motor control equipment and electronic controls are connected to hazardous line voltages. When servicing drives and electronic controls, there will be exposed components at or above line potential. Extreme care should be taken to protect against shock. Stand on an insulating pad and make it a habit to use only one hand when checking components. Always work with another person in case of an emergency. Disconnect power whenever possible to check controls or to perform maintenance. Be sure equipment is properly grounded. Wear safety glasses whenever working on electric control or rotating equipment.
Saf et y Guidelines 1. The drive must be disconnected from the AC line before any service work is done. 2. The “Stop/ Off” key on the LCP of the drive does not disconnect the equipment from the AC line and is not to be used as a safety switch. 3. Correct protective grounding of the equipment must be established. The user must be protected against supply voltage and the motor must be protected against overload in accordance with applicable national and local regulations. 4. Ground currents are higher than 3 mA.

Warning against Unint ended St art 1. While the drive is connected to the AC line, the motor can be brought to a stop by means of external switch closures, serial bus commands or references. If personal safety considerations make it necessary to ensure that no unintended start occurs, these stops are not sufficient. 2. During programming of parameters, the motor may start. Be certain that no one is in the area of the motor or driven equipment when changing parameters. 3. A motor that has been stopped may start unexpectedly if faults occur in the electronics of the drive, or if an overload, a fault in the supply AC line or a fault in the motor connection or other fault clears. 4. If the “Local/ Hand” key is activated, the motor can only be brought to a stop by means of the “Stop/ Off” key or an external safety interlock
NB! It is responsibility of user or person installing drive to provide proper grounding and branch circuit protection for incoming power and motor overload according to National Electrical Code (NEC) and local codes.

The Electronic Thermal Relay (ETR) in UL listed VLTs provides Class 20 motor overload protection in accordance with NEC in single motor applications, when par. 1-90 Motor Thermal Protection is set for ETR TRIP 1, ETR TRIP 2, ETR TRIP 3, or ETR TRIP 4, and par. 1-24 Motor Current is set for rated motor (nameplate) current.
The frequency converter DC link capacitors remain charged after power has been disconnected. To avoid an electrical shock hazard, disconnect the frequency converter from the mains before carrying out maintenance. Wait at least as follows before doing service on the frequency converter:

MG.11.Z2.02 – VLT is a registered Danfoss trademark

1 Introduction

VLT® HVAC Drive FLN Operating I nstructions

Volt age ( V)

200 – 240

4 1.1 – 3.7 kW

Min. Wait ing Tim e ( Minut es)

5.5 – 45 kW

380 – 480

1.1 – 7.5 kW

11 – 90 kW

110 – 250 kW

525-600

1.1 – 7.5 kW

11 – 90 kW

525-690

11 – 90 kW

45 – 400 kW

450 – 1400 kW

Be aware that there may be high voltage on the DC link even when the LEDs are turned off.

1.3.1 I nt roduct ion

40 315 – 1000 kW

The Siemens Floor Level Network (FLN) is a master/ slave control network for serial communication with various control devices. The FLN controller is RS-485 compatible, half duplex, with an operating rate of 4800 or 9600 baud. Recommended wiring is shielded, twisted pair. The FLN software protocol is designed to be general in nature to accommodate any unique properties of each device type. The node address system allows up to 96 devices to be used on any one system.

The Danfoss VLT is a programmable frequency converter, which controls the operation of 3-phase, standard induction electrical motors in the HVAC industry. The VLT control card has FLN communication protocol software built-in. The drive uses optical isolation for fault tolerance and noise immunity.

The FLN communicates directly with the VLT via the RS-485 serial interface bus. In addition to being able to control the drive, most drive configuration and control parameters can be reviewed and changed through the FLN. Also, the operational status of the drive can be read and monitored through the bus. Diagnostic and operational information stored in the VLT is easily available, such as kWh of energy used, total operation hours, drive status, motor speed, and many other useful items which can be accessed and monitored through the FLN.

The FLN is designed to communicate with any controller node that supports the interfaces defined in this document.

1.3.2 About t his Manual
The documentation in this manual provides comprehensive information on the connection, programming, and startup of the VLT for use with the FLN. It is intended as both an instruction and reference manual. Functions and features of the VLT are also briefly reviewed to serve as a guideline to optimize your communication system. Read this manual before programming since important information is provided in each section. For detailed information on using the VLT, see the Operating Instructions.

1.3.3 Assum pt ions
This manual assumes that the controller node supports the interfaces in this document and that all the requirements and limitations stipulated in the controller node and the VLT are strictly observed. It is assumed that the user understands the general capabilities and limitation of the controller node and the VLT.

1.3.4 Available lit erat ure for VLT HVAC Drive
– Operating Instructions MG.11.Ax.yy provide the necessary information for getting the frequency converter up and running. – Operating Instructions VLT HVAC Drive High Power, MG.11.Fx.yy – Design Guide MG.11.Bx.yy entails all technical information about the frequency converter and customer design and applications. – Programming Guide MG.11.Cx.yy provides information on how to programme and includes complete parameter descriptions. – Mounting Instruction, Analog I/O Option MCB109, MI.38.Bx.yy – Application Note, Temperature Derating Guide, MN.11.Ax.yy – PC-based Configuration Tool MCT 10, MG.10.Ax.yy enables the user to configure the frequency converter from a WindowsTM based PC environ-
ment.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions

1 Introduction

– Danfoss VLT® Energy Box software at www.danfoss.com/ BusinessAreas/ DrivesSolutions then choose PC Software Download

– VLT® VLT HVAC Drive Drive Applications, MG.11.Tx.yy

– Operating Instructions VLT HVAC Drive Profibus, MG.33.Cx.yy.

– Operating Instructions VLT HVAC Drive Device Net, MG.33.Dx.yy

– Operating Instructions VLT HVAC Drive BACnet, MG.11.Dx.yy

– Operating Instructions VLT HVAC Drive LonWorks, MG.11.Ex.yy

– Operating Instructions VLT HVAC Drive Metasys, MG.11.Gx.yy

– Operating Instructions VLT HVAC Drive FLN, MG.11.Zx.yy

– Output Filter Design Guide, MG.90.Nx.yy

– Brake Resistor Design Guide, MG.90.Ox.yy

x = Revision number yy = Language code

Danfoss technical literature is available in print from your local Danfoss Sales Office or online at: www.danfoss.com/ BusinessAreas/DrivesSolutions/Documentations/Technical+ Documentation.htm

1.3.5 Abbreviat ions and st andards

Abbreviat ions: a
AWG Auto Tune
°C I I LIM Joule °F FC f kHz LCP mA ms min MCT M-TYPE Nm I M,N fM,N PM,N UM,N par. PELV Watt Pascal I INV RPM SR T t TLI M U
Table 1.1: Abbreviation and standards table .

Term s:
Acceleration American wire gauge Automatic Motor Tuning Celsius Current Current limit Energy Fahrenheit Frequency Converter Frequency Kilohertz Local Control Panel Milliampere Millisecond Minute Motion Control Tool Motor Type Dependent Newton Metres Nominal motor current Nominal motor frequency Nominal motor power Nominal motor voltage Parameter Protective Extra Low Voltage Power Pressure Rated Inverter Output Current Revolutions Per Minute Size Related Temperature Time Torque limit Voltage

SI -unit s: m/ s2
A J = Nm
Hz kHz

I -P unit s: ft/ s2
Amp ft-lb, Btu
Hz kHz

in-lbs

W Pa = N/ m²

Btu/ hr, hp psi, psf, ft of water

s,hr

1.3.6 HP/ k W conver sion
A conversion index for determining kW and HP ratings is shown below.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

1 Introduction

0.25

0.33

0.37 0.55

0.5 0.75

0.75

1.0

1.1

1.5

2.0

2.2

3.0

4.0

5.0

5.5

7.5

18.5

VLT® HVAC Drive FLN Operating I nstructions

100

125

110

150

132

175

160

200

300

250

350

315

350

355

450

400

500

450

600

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions
2 VLT Funct ional Feat ur es

2 VLT Functional Features

The FLN protocol built into the VLT frequency converter allows programming of numerous features and monitoring of the drive via the serial bus and the

standard RS-485 port. The VLT also has the capability to control closed or open loop systems on its own and has been designed specifically for HVAC applications. Always accessible in real-time are the system status, what the motor and drive are doing, and if there are any problems. The VLT continuously

monitors all aspects of motor and drive status and issues alarms or warnings for adverse conditions. The FLN interacts with the drive based upon a point

map database and the selected interface strategy. Many, but not all, drive features are accessible through the point map. See the Operating Instruc-

tions for more drive details. Table Point Mapping lists the map points and Table Point database definitions supplies definitions. Below is a review of some

frequently used drive features and the associated point map numbers.

2.1.1 Dr ive Oper at ion ( 03-14)
These points provide the FLN with operational status information such as output frequency, motor current, output voltage, power and energy. The run time in hours that power has been supplied to the motor is also stored for display, along with cumulative energy used in kWh.

2.1.2 Mot or and Dr ive Ther m al Pr ot ect ion ( 15, 16, 18)
The motor and drive are protected against thermal overload. The percentage of thermal load is displayed. Point 18 indicates if either the motor or drive thermal limit has been exceeded.

2.1.3 Set -up 1-4 and Day/ Night oper at ion ( 17, 29)
In the FLN system it is not recommended to operate in multible set-up. The drive should remain in Set-up 1 at all times.
The drive is capable of maintaining four independent program set-ups. Each set-up supports independent point map configurations. Seasonal changes, various acceleration or deceleration rates, or other operation modes can be accommodated. Point 17 indicates which setup is active. The set-up change is programmed through the drive’s keypad or digital I/Os. Day/ night operation is implemented in the point map (29).

2.1.4 Cur r ent Monit or ing and Lim it s ( 19)
The maximum current that the drive provides to the motor can be limited. This tends to limit the torque that can be produced by the motor. Data point 19 indicates if the motor is operating at that current limit.

2.1.5 Direct ion of Rot at ion ( 22)
The drive responds to serial commands to reverse direction of the motor. The drive can safely reverse motor rotation while in operation. Many applications benefit from this ability, such as vane axial fans reversed for smoke extraction or cooling towers for deicing. par. 8-54 Reversing Select, must be set to serial communication for point 22 to command the feature.

2.1.6 St ar t / St op ( 23)
To run the drive from the FLN or in Auto mode from the drive`s digital control terminals, a start command must be given at data point 23. When a stop command is given at this point, the drive will only run in Hand mode.

2.1.7 Ram p Select ( 24)
Datapoint 24 selects the active ramp.

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2 VLT Functional Features

VLT® HVAC Drive FLN Operating I nstructions

2.1.8 Fr eeze Mode ( 25, 26)

If desired, the frequency of the drive can be frozen at its present value. The mode is indicated by data point 25. It is an option available when serial interface is lost.

2.1.9 Coast ( 27, 28)

The coast command (28) shuts down the inverter and makes the motor freewheeling, which normally brings it to stand still. The drive cannot be restarted in any mode before the coast command is removed. It is, therefore, often used as a safety interlock. Data point 27 indicates when the drive is coasted.

2.1.10 Mot or Ram p-up and Ram p-dow n Rat e ( 31, 32)
The time to accelerate or decelerate the drive between 0 Hz and the motor’s nominal frequency can be programmed. The drive is capable of settings between one to 3600 seconds (one hour). Only Ramp1 is accessible from the FLN network.

2.1.11 Hand/ Aut o Modes ( 34)
The SEL HND.AUTO shows which mode the drive is in. The drive can be commanded into either Hand or Auto mode by pressing the respective keys on the keypad of the drive. Hand mode disables any programmed control strategies and allows the drive keypad to be used to set the drive speed. The only serial communication command that can override Hand mode is data point 28, CMD COAST.

2.1.12 CMD RUN STOP ( 35)
Set data point 35 to ON to run the drive from the FLN with default drive parameter settings. In the OFF mode, the drive will run only in Hand mode or in Auto mode from the drive`s digital control terminals. par. 8-53 Start Select, controls the interaction of point 35 and the digital run command.

2.1.13 Bus Funct ions ( 36, 37)
The amount of time the drive will wait between communication packets is programmable. If the time is exceeded, the drive will assume serial communication has stopped and respond with programmable choices. The drive can ignore the loss, freeze its current output, stop, run at a predetermined jog frequency, run at maximum output frequency or stop and trip while issuing an alarm. Wait time is selected at point 36 and the function after a timeout at point 37. See descriptions for par. 8-03 Control Timeout Time and par. 8-04 Control Timeout Function in the VLT HVAC Drive Programming Guide.

2.1.14 Jog Fr equency and Com m and ( 38, 39)
The Jog Frequency can be set by data point 38. Setting data point 39 to [ On] will cause the frequency converter to send the Jog Frequency to the motor.

2.1.15 Relay Out 1, 2 ( 40, 41, 43, 44)
Two programmable relay outputs (Form C, 240 VAC, 2 Amp) are available. These can be triggered through the serial bus by command points 40 and 41. This allows the FLN to utilize the drive’s built-in relays as additional network programmable relays. The data points 43 and 44 indicate whether the relay is triggered or not (On/ Off). Parameters 5-40.0 and 5-40.1, Function Relay 1 and Function Relay 2, must be set to [ 45] Bus controlled, [ 46] Bus controlled 1, if timeout or [ 47] Bus controlled 0, if timeout.

2.1.16 PI D Cont r ol Funct ions ( 61-65)
The VLT has a sophisticated built-in proportional, integral, derivative (PID) controller. The PID controller is activated by setting par. 1-00 Configuration Mode, to Closed loop through the drive’s keypad.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions

2 VLT Functional Features

The PID controller in the VLT supports two feedback values and two setpoints. The feedback can be received in the form of network bus signals and/ or standard 0-10 V transmitters. The 2 set-point controller is capable of controlling return fans based on a fixed differential flow, secondary pumping systems, and so on. This can be used to supplement the BMS system to save on points or capacity. For details on use of the two feedback/ setpoint feature, refer to the Operating Instructions. Data points 43 and 44 show the status of an FLN command to the drive.

The points PI GAI N and PI TI ME are gain parameters similar to the P and I gains in the FLN TECs. The Danfoss PI loop is structured differently than the

Siemens loop, so there is not a one-to-one correspondence between the gains. The following formulas allow translation between Danfoss and Siemens

gains.

Converting from Danfoss PI gains to Siemens P and I gains:

P GainSIEMENS = PI Gain DANFOSS × 0.0015 Converting from Siemens P and I gains to Danfoss PI gains:

I GainSIEMENS

PI Gain DANFOSS PI Time DANFOSS

× 0.0015

PI Gain DANFOSS = P GainSIEMENS × 667

PI Time DANFOSS =

P GainSIEMENS I GainSIEMENS

× 667

2.1.17 Sleep Mode ( 59)
Sleep mode automatically stops the drive when demand is low over a period of time. When the system demand increases, the drive restarts the motor to reach the desired output. Sleep mode has great energy savings potential and saves wear and tear on equipment. Unlike a setback timer, the drive is always available to run when a preset “wakeup” demand is reached. See parameter group 22-4* Sleep Mode and 22-2* No-Flow Detection in the VLT HVAC Drive Programming Guide for more detail.

2.1.18 Term inals 53, 54, ( 87-88)
Two analog voltage/current input terminals 53 and 54 (0-10 VDC)/(0-20 mA) are provided for reference or feedback signals. The applied electrical signal can be read by data points 87 to 88 in volts and mA. This can be very useful during commissioning to calibrate transmitters. This can also be used to convert any other analog transmitter in the installation into a digital bus signal, even if the signal is not used by the drive. In this case, the input terminal should be programmed to No Function so it does not influence the operation of the drive.

2.1.19 Warnings and Alarms (90-94)
The drive displays a warning or tripped by a fault condition. It also can retrieve the last warning or fault trip for display. The drive can be reset through the FLN serial bus to resume normal drive operation.

2.1.20 Er ror St at us ( 99)
Data point 99 is implemented in the point map but is not used in this application.

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3 VLT Network Strategies
3

VLT® HVAC Drive FLN Operating I nstructions

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions
3 VLT Net w or k St r at egies

3 VLT Network Strategies

The VLT has its own internal PID closed loop controller. This can be turned on or off, depending on the requirements of the control strategy. A brief summary of possibilities follows. This is meant to illustrate possibilities rather than be all-inclusive. An actual application may combine features from a more than one of these strategies.

3.1.1 St r at egy one

FLN Funct ion Monitor drive operation FC Cont r ol From a conventional, hardwired system FC Mode Open Loop. The VLT follows hard-wired run/stop signals. An external, hard-wired PID controller provides the drive with a speed reference signal. The FLN monitors the operation of the drive without control function.

Net w or k I nput s t o t he VLT: Because the FLN is simply monitoring the operation of the drive, it provides no inputs. Net w or k Out put s fr om t he VLT: The following points are monitored by the FLN to indicate system status. This list could be expanded or shortened, depending on the requirements of the system.
03 FREQ OUTPUT 08 POWER 10 KWH 23 STOP.RUN 92 ALARM

3.1.2 St r at egy t w o

FLN Funct ion Control all aspects of frequency converter operation FC Cont r ol From FLN network FC Mode Open Loop The frequency converter follows run/stop and speed reference signals from the FLN. The FLN receives the feedback signal from the controlled system, compares this to a set-point value, and uses its own PID control loop to determine the required drive speed.

Net w ork I nput s t o t he frequency convert er: The following drive points might be controlled by the FLN.
Speed Com m and:

53 CMD REF

This is the speed reference command. This is set as a percentage of the drive’s reference range, determined by par. 3-02 Minimum Reference and par. 3-03 Maximum Reference. Setting point 53 to 0 gives the drive a reference command equal to the value stored in par. 3-03 Maximum Reference. Setting point 53 to 16384 gives the drive a reference command equal to the value stored in par. 3-03 Maximum Reference. Intermediate values for point 53 change the reference linearly between these two values.

NB! I n general, any other reference signal is added to the bus reference. Disable all other drive reference inputs when using a bus reference to control drive speed.

St art / St op Com m and: To give a start command from the FLN, the following points must be set. The frequency converter can also respond to discrete run/ stop control signals that are hard wired to its control terminals. The point used to stop the frequency converter through the FLN determines the capability of these discrete command signals.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

3 VLT Network Strategies

VLT® HVAC Drive FLN Operating I nstructions

28 CMD COAST 35 RUN ENABLE
3

In most cases, it is necessary to set this point to [ NO] to make the drive run. If this is set to [ COAST] while the VLT is running, the drive will shut off immediately and the motor will coast to a stop. When set to [ COAST] , the lower right corner of the drive display shows Coast. The drive will not start in either HAND mode or through discrete control signals until point 28 is set to [ NO] . VLT par. 8-50 Coasting Select, can defeat this. See the VLT HVAC Drive Operating I nstructions for details. Because point 28 can keep the drive from operating in any mode, this is commonly used to provide a safety interlock function. In most cases, it is necessary to set this point [ ON] to make the drive run. If this is set to [ OFF] while the drive is running, the drive will decelerate to a stop. When set to [ OFF], the lower right corner of the display shows STAND BY. When OFF, the drive can be started in HAND mode from the keypad. It can also be started using a hard-wired discrete run command, as when par. 8-53 Start Select, is set to digital input.

Net w or k Out put s f r om t he VLT: The points listed in Strategy One are commonly used.

3.1.3 St rat egy t hr ee

FLN Funct ion Monitor frequency converter operation FC Cont rol From a hard-wired system, including system feedback FC Mode Closed Loop The frequency converter follows hard-wired run/ stop signals. It uses its internal PID controller to control motor speed. The feedback signal is hard wired to the analog input and the set-point is programmed into the drive. The FLN is used to monitor the status of the FC and the value of the PID controller set-point and feedback.

Net w ork I nput s t o t he frequency convert er: Because the FLN is simply monitoring the operation of the frequency converter, it provides no inputs.
Net w or k Out put s fr om t he fr equency conver t er: In addition to the points listed in Strategy One, it may be useful to monitor the following points related to the operation of the PID controller. Feedback :

53 CMD REF

This is the set-point for the PID controller. Please consult the VLT HVAC Drive Design Guide for further information on how to set up the PID controller.

65 FEEDBACK

This is the value of the feedback signal in % for the PID controller.

3.1.4 St rat egy f our
FLN Funct ion Provide the frequency converter with set-point and feedback values using the PID controller to determine motor speed FC Cont rol From the FLN FC Mode Closed Loop The frequency converter follows run/ stop signals from the FLN. The FLN receives the feedback signal from the controlled system. It sends this and the desired set-point to the PID controller. The frequency converter compares the feedback signal with the set-point and adjusts the speed of the FC accordingly.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions

3 VLT Network Strategies

Net w ork input s t o t he frequency convert er: In addition to start/ stop control, which was discussed in Strategy Two, the FLN provides the frequency converter with feedback and set-point information using the following points.
Feedback :

69 BUS FBK 1

A value of -163.83 % represents the minimum feedback signal. A value of + 163.83 % represents the maximum feedback signal. This should be the feedback used if only one feedback signal is supplied to the frequency converter.

NB!

If the frequency converter terminal 53 is programmed by means of par. 20-00 Feedback 1 Source, for feedback, any signal applied to

terminal 54 is added to value provided at point 53 CMD REF. Therefore, it is generally advisable not to program par. 20-00 Feedback

1 Source for feedback.

Ex am ple: In a cooling tower application, the feed-back signal comes from a temperature sensor with a range of 40 °F to 140 °F. To unbundle BUS FBK 2 (point 70) for the temperature sensor:

1. Set par. 20-13 Minimum Reference/Feedb. to 40.

2. Set par. 20-14 Maximum Reference/Feedb. to 140.

3. Intercept = 40 (since the minimum feedback value is 40)

4. Slope can be calculated as follows:

Slope

(Desired Range) × (Slope of Existing Point) Range of Existing Point

(140 – 40) × 0.1 16383

= 0.00061

Set – point :

66 SET-POI NT 1 67 SET-POI NT 2

This is the PID controller’s set-point, expressed in the units that were chosen in par. 20-02 Feedback 1 Source Unit. It can be set to any value between par. 3-02 Minimum Reference and par. 3-03 Maximum Reference. If an attempt is made to set point 69 to a value outside of this range, the set-point will not be changed. SET-POINT 1 can also be programmed using par. 20-21 Setpoint 1. This PID controller’s set-point is used for applications, where multible feedback signals will be compared to independent set-points. Refer to the VLT HVAC Drive Design Guide for more details. SET-POI NT 2 is expressed in the units selected in par. 3-03 Maximum Reference. If an attempt is made to assign point 70 to a value outside of this range, the set-point will not change. Set-point 2 can also be programmed using par. 20-22 Setpoint 2.

PI D Cont roller Adj ust m ent s: The following points adjust the operation of the PID control loop. They are generally set during start-up and only adjusted if changes in the system require it. These values can also be set using parameters. See the VLT HVAC Drive Programming Guide for more details.

61 PI START FREQ ( par . 20-83 PI D St art Speed [ Hz] )
63 PI GAI N ( par. 20-93 PI D Proport ional Gain)

This sets the frequency to which the FC will accelerate following a start command. After it reaches this frequency, the frequency converter will activate its PID controller. Point 61 can have a value between the drive’s minimum frequency (as set in par. 4-12 Motor Speed Low Limit [ Hz]) and its maximum frequency (as set in par. 4-13 Motor Speed High Limit [ RPM] ). If an attempt is made to set point 61 to a value outside of this range, the drive value will not change. This sets the value of proportional gain for the PID controller. It can have a value between 0 and 10.

Net w or k Out put s fr om t he VLT: The points listed in Strategy One are commonly used.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

4 VLT Special Functions
4

VLT® HVAC Drive FLN Operating I nstructions

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions
4 VLT Special Funct ions

4 VLT Special Functions

4.1.1 Special f unct ions
In addition to the control strategies described above, the frequency converter provides additional control flexibility to allow it to integrate into special control system requirements. The following are just a few examples.

4.1.2 Analog input m onit oring

Points 87 and 88 can be used to monitor the value of the analog control signals applied to terminals 53 and 54. These points are active even when NO

FUNCTION is programmed for the analog input of the drive. As a result, it is possible to use the frequency converter analog inputs as analog input for

the FLN.

4.1.3 Drive relay cont rol
While relay 1 and 2 in the FC usually provide drive status indications, these indications are generally not needed, when the drive is connected to a FLN network. In some applications, it can be useful to have the FLN control these relays. For example, by controlling one of the relays, the FLN could select the active pump in a pump sequencing system. For the FLN to control a drive relay, the appropriate FC parameter (5-40.0 or 5-40.1) must be set to [ Bus Control] . Setting point 40 or 41 to [ On] will then activate the corresponding relay.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

5 Network Connection

VLT® HVAC Drive FLN Operating I nstructions

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions
5 Net w or k Connect ion

5 Network Connection

5.1.1 Net w ork connect ion
Connect t he f requency conver t er t o t he RS-485 net w or k as f ollow s ( see also diagr am ) : 1. Connect signal wires to terminal 68 (P+ ) and terminal 69 (N-) on the main control board of the frequency converter. 2. Connect the cable screen to the cable clamps.
NB! Screened, twisted-pair cables are recommended in order to reduce noise between conductors.
5

Illustration 5.1: Network Terminal Connection

Illustration 5.2: Control card terminals

5.1.2 Fr equency convert er hardw ar e set up
Use the terminator dip switch on the main control board of the frequency converter to terminate the RS-485 bus.

The factory setting for the dip switch is OFF.

Illustration 5.3: Terminator Switch Factory Setting

5.1.3 Elect r ical inst allat ion
NB! Electrical installation: Please see VLT HVAC Drive Operating Instructions, MG.11.Ax.yy. x= version ; yy= language code.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

6 Parameters

VLT® HVAC Drive FLN Operating I nstructions

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions
6 Par am et er s

6 Parameters

6.1.1 Par am et er set t ings
The frequency converter has a unique FLN address, which is transmitted over the RS-485 serial bus. The network will recognize the FC, which may then be programmed for setup options. The parameters listed in the table below need to be set for each FC on the FLN network. FLN communication related parameters can only be set by using the LCP.

NB! As a minimum, it is required to set par. 8-30 Protocol to FLN; par. 8-31 Address, to the proper address and par. 8-32 Baud Rate to the proper baud rate. (See VLT HVAC Drive Programming Guide).

Par. 8-50 Coasting Select through par. 8-56 Preset Reference Select are options that select control of the drive through the digital and/ or the FLN serial
port.
6

Param et er * par. 8-03 Control Timeout Time * par. 8-04 Control Timeout Function * par. 8-30 Protocol * par. 8-31 Address * par. 8-32 Baud Rate * * par. 8-50 Coasting Select * * par. 8-52 DC Brake Select * * par. 8-53 Start Select * * par. 8-54 Reversing Select * * par. 8-55 Set-up Select * * par. 8-56 Preset Reference Select

Default 0 0ff FC 1 through 98 9600 Logic or Logic or Logic or Digital input Logic or Logic or

Desired set t ing
FLN 4800 or 9600

Table 6.1: Frequency converter parameter settings

* Minimum parameters, which must be set to operate the frequency converter via the FLN serial interface. * * When [ Digital input] or [ Logic or] is selected, digital inputs may interfere with serial bus commands. The setting [ Serial communication] allows serial bus commands to be carried out only. See the VLT HVAC Drive Programming Guide for detailed descriptions.
NB! The frequency converter can store preset references programmed in parameters 3-10.0 through 3-10.7, Preset Reference (1-8). To avoid these values modifying serial bus references, set par. 3-04 Reference Function to [ External/ Preset] . See VLT HVAC Drive Programming Guide for detailed descriptions.

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7 Start-up and Troubleshooting

VLT® HVAC Drive FLN Operating I nstructions

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions
7 St ar t -up and Tr oubleshoot ing

7 Start-up and Troubleshooting

7.1 St ar t -up
7.1.1 St ar t -up of FLN cont r ol
This procedure assumes that the frequency converter has been installed properly and is operational in Hand control mode. It also assumes the Siemens FLN data bus is connected to an operational controller. Start the FC in accordance with the following procedure.
1. Ensure that the assumptions in this procedure are correct. 2. Check that the network connections are securely fastened in accordance with Figure Network Terminal Connection

Verify compliance with all safety requirements listed in this manual.

3. Apply power to the frequency converter.

4. Ensure that the minimum settings listed in Table 6.1 Frequency converter parameter settings are selected.

5. Ensure that the switch positions in Illustration 5.3 Terminator Switch Factory Setting are set correctly.

6. Optional settings may be changed to meet or enhance frequency converter operation, depending on the application requirements.

7. For FLN control of the drive, press the AUTO START key on the LCP. FC operation can then be controlled through the host network device in accordance with its operation instructions.

NB! Default setting for point number 35, CMD RUN STOP, is [ OFF] . Drive will not operate until Run Enable [ ON] signal is given through serial communication network.

7.2 Tr oubleshoot ing
7.2.1 Fault s, w ar nings and alar m s

A stopped motor may start unexpectedly if faults occur in electronics of drive, or if an active fault clears, such as a fault in supply AC line, fault in motor connection or overload.

The frequency converter output faults, warnings and alarms on the FLN serial bus in a numerical code. The code numbers are described in Table Faults, Warnings and Alarms Description. The Reset key is used for manually resetting the drive after an alarm (fault trip). In this case, the top line of the display will show TRI P (RESET). I f the top line of the display shows TRI P (AUTO START), the drive will automatically restart. I f the top line of the display shows TRIPLOCK (DISC. MAINS), input power to the drive must be cycled off and on again before the trip can be reset.
Refer to the VLT HVAC Drive Operating I nstructions for detailed descriptions.
7.2.2 Alarm s and w arnings
A warning or an alarm is signalled by the relevant LED on the front of the frequency converter and indicated by a code on the display.
A warning remains active until its cause is no longer present. Under certain circumstances operation of the motor may still be continued. Warning messages may be critical, but are not necessarily so.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

7 Start-up and Troubleshooting

VLT® HVAC Drive FLN Operating I nstructions

In the event of an alarm, the frequency converter will have tripped. Alarms must be reset to restart operation once their cause has been rectified. This may be done in four ways:
1. By using the [ RESET] control button on the LCP control panel. 2. Via a digital input with the “Reset” function. 3. Via serial communication/ optional fieldbus. 4. By resetting automatically using the [ Auto Reset] function, which is a default setting for frequency converter. see par. 14-20 Reset Mode in VLT
HVAC Drive Programming Guide, MG.11.Cx.yy
NB! After a manual reset using the [ RESET] button on the LCP, the [ AUTO ON] button must be pressed to restart the motor.

If an alarm cannot be reset, the reason may be that its cause has not been rectified, or the alarm is trip-locked (see also table on following page).

Alarms that are trip-locked offer additional protection, means that the mains supply must be switched off before the alarm can be reset. After being switched back on, the frequency converter is no longer blocked and may be reset as described above once the cause has been rectified.

Alarms that are not trip-locked can also be reset using the automatic reset function in par. 14-20 Reset Mode (Warning: automatic wake-up is possible!)

If a warning and alarm is marked against a code in the table on the following page, this means that either a warning occurs before an alarm, or it can be specified whether it is a warning or an alarm that is to be displayed for a given fault.

This is possible, for instance, in par. 1-90 Motor Thermal Protection. After an alarm or trip, the motor carries on coasting, and the alarm and warning flash on the frequency converter. Once the problem has been rectified, only the alarm continues flashing.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions

7 Start-up and Troubleshooting

No. Description

10 Volts low

Live zero error

No motor

Mains phase loss

DC link voltage high

DC link voltage low

DC over voltage

DC under voltage

Inverter overloaded

10 Motor ETR over temperature

11 Motor thermistor over temperature

12 Torque limit 13 Over Current 14 Earth fault 15 Incomp. HW 16 Short Circuit 17 Control word timeout

23 Internal fans 24 External fans 25 Brake resistor short-circuited 26 Brake resistor power limit

27 Brake chopper short-circuited 28 Brake check 29 Power board over temp 30 Motor phase U missing

31 Motor phase V missing

32 Motor phase W missing

33 Inrush fault

34 Fieldbus communication fault

35 Option fault

36 Mains failure

38 Internal fault

40 Overload T27

41 Overload T29

42 Overload X30/ 6-7

47 24 V supply low

48 1.8 V supply low

49 Speed limit

50 AMA calibration failed

AMA check Unom and Inom

AMA low Inom

53 AMA motor too big

54 AMA motor too small

55 AMA parameter out of range

56 AMA interrupted by user

57 AMA timeout

58 AMA internal fault

59 Current limit

60 External interlock

62 Output Frequency at Maximum Limit

65 Control Board Over-temperature

66 Heat sink Temperature Low

67 Option Configuration has Changed

68 Safe Stop Activated

70 Illegal FC configuration

80 Drive Initialised to Default Value

92 No-Flow

93 Dry Pump

94 End of Curve

95 Broken Belt

96 Start Delayed

97 Stop Delayed

98 Clock Fault

Table 7.1: Alarm/ Warning code list

Warning X (X)
(X)
(X)
X X X X X (X)
(X)
X X X
(X)

Alarm/ Trip
(X)
(X)
X X X (X)
(X)
X X X X X (X)

Alarm/Trip Lock (X)

Parameter Reference
par. 6-01 Live Zero Timeout Function
par. 1-80 Function at Stop
par. 14-12 Function at Mains Imbalance

par. 1-90 Motor Thermal Protection
par. 1-90 Motor Thermal Protection
X X X X
par. 8-04 Control Timeout Function

(X)

par. 2-13 Brake Power

Monitoring

par. 2-15 Brake Check

(X)

par. 4-58 Missing Motor

Phase Function

(X)

par. 4-58 Missing Motor

Phase Function

(X)

par. 4-58 Missing Motor

Phase Function

X X
X
Par. 22-2* Par. 22-2* Par. 22-5* Par. 22-6* Par. 22-7* Par. 22-7* Par. 0-7*

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7 Start-up and Troubleshooting

VLT® HVAC Drive FLN Operating I nstructions

No. Description 200 Fire Mode 201 Fire Mode was Active 202 Fire Mode Limits Exceeded 250 New spare part 251 New type code
Table 7.2: Alarm/ Warning code list, continued..

(X) Dependent on parameter
LED indication Warning Alarm
Trip locked

yellow flashing red yellow and red

Warning X X X

Alarm/ Trip

Alarm/Trip Lock

Parameter Reference Par. 24-0* Par. 0-7* Par. 0-7*

Alar m Word and Ex t ended St at us Word

Bit

Hex

Dec

Alarm Word

Warning Word

00000001

Brake Check

00000002

Pwr. Card Temp

00000004

Earth Fault

00000008

Ctrl.Card Temp

00000010

Ctrl. Word TO

00000020

Over Current

00000040

Torque Limit

00000080

128

Motor Th Over

00000100

00000200

256

Motor ETR Over

512

Inverter Overld.

00000400

1024

DC under Volt

00000800

2048

DC over Volt

00001000

4096

Short Circuit

DC Voltage Low

00002000

8192

Inrush Fault

DC Voltage High

00004000

16384

Mains ph. Loss

00008000

32768

AMA Not OK

No Motor

00010000

65536

Live Zero Error

00020000

131072

Internal Fault

10V Low

00040000

262144

Brake Overload

00080000

524288

U phase Loss

Brake Resistor

00100000

1048576

V phase Loss

Brake IGBT

00200000

2097152

W phase Loss

Speed Limit

00400000

4194304

Fieldbus Fault

00800000

8388608

24 V Supply Low

24V Supply Low

01000000

16777216

Mains Failure

02000000

33554432

1.8V Supply Low

Current Limit

04000000

67108864

Brake Resistor

Low Temp

08000000

134217728

Brake IGBT

Voltage Limit

10000000

268435456

Option Change

Unused

20000000

536870912

Drive Initialised

Unused

40000000

1073741824

Safe Stop

Unused

Ext ended St at us Word Ramping AMA Running Start CW/ CCW Slow Down Catch Up Feedback High Feedback Low Output Current High Output Current Low Output Freq High Output Freq Low Brake Check OK Braking Max Braking Out of Speed Range OVC Active

Table 7.3: Description of Alarm Word, Warning Word and Extended Status Word
The alarm words, warning words and extended status words can be read out via serial bus or optional field-bus for diagnosis. See also par. 16-90 Alarm Word, par. 16-92 Warning Word and par. 16-94 Ext. Status Word.

MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions

MG.11.Z2.02 – VLT is a registered Danfoss trademark

7.2.3 Point m apping t able

Point no.
1
2

6000 point no.
1
2

Descriptor
CTRL ADDRESS
APPLI CATI ON

Factory default
( SI )
0
2759

Engr. Unit ( SI )
–
–

Slope

I nt ercept

(SI )

text

–

Off text

Range

Max vaue ( SI )

Min value ( SI )

Point type

Class Type (Note 1)

Read Only

Par. No.

–

255

LAO

Yes

8-31

–

16383

LAO

Yes

–

{ 3}

FREQ OUTPUT

0,1

–

16383

1638,3

LAI

Yes

16-13

{ 4}

–

PCT OUTPUT

PCT

0,01

-163,83

–

32767

163,83

-163,83

{ 5}

–

REF PCT

PCT

0,1

-1638,3

–

32767

1638,3

-1638,3

{ 6}

CURRENT

0,1

–

32767

3276,7

{ 7}

–

CTRL.CRD.T MP

DEG C

255

{ 8}

POWER KW

0,1

–

32767

3276,7

{ 9}

–

POWER HP

0,1

–

32767

3276,7

{ 10}

KWH

–

1023

{ 11}

–

MWH

–

32767

{ 12}

RUN TIME

–

32767

131068

{ 13}

DC BUS VOLT

–

4095

{ 14}

OUTPUT VOLT

–

4095

{ 15}

MOTOR THERM

PCT

–

255

{ 16}

DRI VE THERM

PCT

–

255

{ 17}

ACTIVE SETUP

–

255

{ 18}

–

HEATSI NK TMP

DEG C

–

255

{ 19}

CUR.LI M.ST AT

–

LI MI T

255

LAI

Yes

16-15

LAI

Yes

16-02

LAI

Yes

16-14

LAI

Yes

16-39

LAI

Yes

16-10

LAI

Yes

16-11

LAI

Yes

15-02

LAI

Yes

15-02

LAI

Yes

15-01

LAI

Yes

16-30

LAI

Yes

16-12

LAI

Yes

16-18

LAI

Yes

16-35

LAI

Yes

0-10

LAI

Yes

16-34

LDI

Yes

16-03 [ 14]

OVRD TIME

HRS

–

255

LAO

7 Start-up and Troubleshooting

MG.11.Z2.02 – VLT is a registered Danfoss trademark

Point no. { 21} { 22} { 23} { 24} { 25} { 26} { 27} { 28} 29
{ 31}
{ 32} { 34} { 35}
{ 36}
{ 37} { 38} { 39} { 40}

6000 point no.
21 22 23 25 26 27 28 29
31
32 34 35
36
37 40

Factory

Descriptor default

( SI )

FWD.REV

FWD

CMD FWD.REV

FWD

RUN.STOP STOP

RAMP SELECT

RAMP1

FREEZE OUT OFF

CMD FREEZE

OFF

COASTI NG

OFF

CMD COAST

OFF

DAY.NI GHT (Note 2)

DAY

ACCEL TIME 1

0* (Note 4)

DECEL TIME 1

0* (Note 4)

HAND.AUTO AUTO

CMD RUN.STOP

STOP

BUS TIMEOUT

BUS FUNC-

TI ON

(Note 6)

JOG FREQ

10.0

CMD JOG

CMD.RELAY 1

OFF

Engr. Unit ( SI )
–
SEC
SEC –
SEC
HZ –

Slope (SI )
1 1 1 1 1 1 1 1 1
1
1 1 1
1
1 0,1 1 1

I nt ercept (SI ) 0 0 0 0 0 0 0 0 0
1
1 0 0
1
0 0 0 0

On text REV REV RUN RAMP2 ON ON OFF OFF NI GHT
–
HAND RUN
–
YES ON

Off text FWD FWD STOP RAMP1 OFF OFF COAST COAST DAY
–
AUTO STOP
–
NO OFF

Range
255 255 255 255 255 255 255 255 255
4095
4095 255 255
32767
255 16383
255 255

Max vaue ( SI ) 255 255 255 255 255 255 255 255 255
3600
3600 255 255
18000
10 1638,3
255 255

Min value ( SI )
0 0 0 0 0 0 0 0 0
1
1 0 0
1
0 0 0 0

Point type
3 1 3 1 3 1 3 1 1
1
1 3 1
1
1 1 1 1

Class Type LDI LDO LDI LDO LDI LDO LDI LDO LDO
LAO
LAO LDI LDO
LAO
LAO LAO LDO LDO

Read Only Yes No Yes No Yes No Yes No No
No
No Yes No
No
No No No No

Par. No. Note[ 3] CTW [ 15] 16-03 [ 11] CTW [ 09] 16-95 [ 14] CTW [ 05] 16-00 [ 03] CTW [ 03] –
3-41
3-42 16-95 [ 01] CTW [ 06] 8-03
8-04 3-11 CTW [ 08] CTW [ 11]

VLT® HVAC Drive FLN Operating I nstructions

7 Start-up and Troubleshooting

MG.11.Z2.02 – VLT is a registered Danfoss trademark

Point no.
{ 41} { 42} { 43}
{ 44} { 45} { 46} { 47} { 48} { 49} { 50} { 51} { 52} { 53} { 54}
{ 55}
{ 56}
{ 57}
{ 58}
{ 59} { 60}

6000 point no.
41 43
44 52 53 –
–
–
–
–
59 –

Descriptor
CMD.RELAY 2
CMD AO1 RELAY 1
STAT RELAY 2
STAT AO1 STAT DI 18 STAT DI 19 STAT DI 27 STAT DI 29 STAT DI 32 STAT DI 33 STAT AT SPEED CMD REF ACCEL TIME
2 DECEL TIME
2 BYPASS
CMD BYPASS
STAT BO START
DLY SLEEP STA-
TUS BO TRIP DLY

Factory default
( SI ) OFF
0 OFF
OFF 0
OFF OFF OFF OFF OFF OFF OFFREF
0 0*
0*
DRI VE
0
30
NO 0

Engr. Unit ( SI )
PCT
–
MA
PCT SEC
SEC
–
–
SEC
SEC

Slope (SI )
1 0,01
1
1 0,01
1 1 1 1 1 1 1 0,01 1
1
1
1
1
1 1

I nt ercept (SI )
0 0 0
0 0 0 0 0 0 0 0 0 0 1
1
0
0
0
0 0

On text
ON ON
ON –
ON ON ON ON ON ON ON.REF –
–
BYPASS
–
–
SLEEP –

Off text
OFF –
OFF
OFF –
OFF OFF OFF OFF OFF OFF OFFREF
–
–
DRI VE
–
–
NO –

Range
255 16383
255
255 4095 255 255 255 255 255 255 255 32767 4095
4095
255
32767
4095
255 4095

Max vaue ( SI ) 255 163,83 255
255 40,95 255 255 255 255 255 255 255 200 3600
3600
255
32767
30
255 300

Min value ( SI )
0 0 0
0 0 0 0 0 0 0 0 0 0 1
1
0
0
0
0 0

Point type
1 1 3
3 3 3 3 3 3 3 3 3 1 1
1
1
3
1
3 1

Class Type
LDO LAO LDI
LDI LAI LDI LDI LDI LDI LDI LDI LDI LAO LAO
LAO
LDO
LAI
LAO
LDI LAO

Read Only
No No Yes
Yes Yes Yes Yes Yes Yes Yes Yes Yes No No
No
No
Yes
No
Yes No

Par. No.
CTW [ 12] 6-53
16-71 [ 04] 16-71[ 03] 16-65
16-60 [ 05] 16-60 [ 04] 16-60 [ 03] 16-60 [ 02] 16-60 [ 01] 16-60 [ 00] 16-03 [ 08] REF 3-51
3-52
31-00
31-10
31-01
[ 21] 31-02

7 Start-up and Troubleshooting

VLT® HVAC Drive FLN Operating Instructions

MG.11.Z2.02 – VLT is a registered Danfoss trademark

Point no.
{ 61}
{ 62} { 63} { 64} { 65} { 66}
{ 67} { 68} { 69} { 70} { 71} { 76}
{ 77} { 78} { 79}
{ 80}

6000 point no.
61
42 63 64 62 69
70 73 74 76
77 78 –
–

Descriptor
PI STRT FREQ
(Note 3) PI STRT
FR.S PI GAIN PI I TIME FEEDBACK SETPOINT 1 (Note 3) SETPOINT 2 (Note 3) SETPOINT 3 BUS FBK 1 BUS FBK 2 BUS FBK 3 VOLTAGE
STAT I NVERT
STAT FREQ STAT
FI REM. STAT OVC ACTI VE

Factory default
( SI )
0
0 0,5 20 0 0
0 0 0 0 0 OK
OK OUTRNG
NORM
NORM

Engr. Unit ( SI )
Hz
Hz SEC PCT UNI T
UNI T UNI T PCT PCT PCT
–
–
–

Slope ( SI )

I nt ercept ( SI )

0,1

0,1 0,01 0,3051848 0,01 0,1
0,1 0,1 0,01 0,01 0,01 1
1 1 1
1

0 0 0,01 -163,83 -1638,3
-1638,3 -1638,3 -163,83 -163,83 -163,83
0
0 0 0
0

On text
–
–
–
LI MI T
STALL I N.RNG
FI RE
OVC

Off text
–
–
–
OK
OK OUTRNG
NORM
NORM

Range
16383
16383 1023 32767 32767 32767
32767 32767 32767 32767 32767
255
255 255 255
255

Max vaue ( SI )
1638,3
1638,3 10
10000 163,83 1638,3
1638,3 1638,3 163,83 163,83 163,83
255
255 255 255
255

Min value ( SI )
0
0 0 0,01 -163,83 -1638,3
-1638,3 -1638,3 -163,83 -163,83 -163,83
0
0 0 0
0

Point type
1
3 1 1 3 1
1 1 1 1 1 3
3 3 3
3

Class Type
LAO
LAI LAO LAO LAI LAO
LAO LAO LAO LAO LAO LDI
LDI LDI LDI
LDI

Read Only
No
Yes No No Yes No
No No No No No Yes
Yes Yes Yes
Yes

Par. No.
20-83
20-83 20-93 20-94 16-05 20-21
20-22 20-23 8-94 8-95 8-96 16-03 [ 13] 16-03 [ 12] 16-03 [ 10] 16-94 [ 25] 16-94 [ 15]

VLT® HVAC Drive FLN Operating I nstructions

7 Start-up and Troubleshooting

MG.11.Z2.02 – VLT is a registered Danfoss trademark

Point no. { 81} { 82} { 83} { 84}
{ 85}
{ 86}
{ 87}
{ 88} { 89} { 90} { 91} { 92} { 93}
{ 94} { 95} { 96} { 97}
99

6000 point no.
81 82 –
–
86
87
88 90 91 92 93
94 –
99

Descriptor
RAMPI NG RUN REQUEST JOGGI NG TERM. 53
TYP TERM. 54
TYP Q.STOP
STAT TERM 53
STAT TERM 54
STAT REF UNIT WARNI NG TRIP LOCK
ALARM
LAST ALARM
RESET ALARM RESET KWH RESET R.HRS JOG FREQ.S
ERROR STATUS
(Note 2)

Factory default
(SI ) NORM NORM NORM CURR
CURR
NORM
0
0 0 OK NOLOCK OK 0 (Note 8) OFF NO NO 0
0

Engr. Unit ( SI )
–
–
–
–
V.MA
V.MA UNI T
–
HZ
–

Slope (SI )
1 1 1 1
1
1
0,001
0,001 0,1 1 1 1 1
1 1 1 0,1
1

I nt ercept (SI ) 0 0 0 0
0
0
0
0 -1638,3
0 0 0 0
0 0 0 0
0

On text RAMP REQ JOG VOLT
VOLT
Q.STOP
–
WARN LOCK ALARM –
RESET RESET RESET
–
–

Off text NORM NORM NORM CURR
CURR
NORM
–
OK NOLOCK OK –
OFF NO NO
–
–

Range
255 255 255 255
255
255
32767
32767 32767
255 255 255 255
255 255 255 16383
255

Max vaue ( SI ) 255 255 255 255
255
255
32,767
32,767 1638,3
255 255 255 255
255 255 255 1638,3
255

Min value (SI )
0 0 0 0
0
0
0
0 -1638,3
0 0 0 0
0 0 0 0

Point type
3 3 3 3
3
3
3
3 3 3 3 3 3
1 1 1 3

Class Type LDI LDI LDI LDI
LDI
LDI
LAI
LAI LAI LDI LDI LDI LAI
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Par. No. 16-94 [ 00] 16-95 [ 15] 16-95 [ 16] 16-61
16-63
16-00 [ 04] 16-62
16-64 16-01 16-03 [ 07] 16-03 [ 06] 16-03 [ 03] 15-30 [ 0] CTW [ 07] 15-06 15-07 3-11
–

7 Start-up and Troubleshooting

VLT® HVAC Drive FLN Operating Instructions

I ndex
I ndex A
Abbreviations And Standards Alarms And Warnings Analog Input Monitoring
B
Bus Functions (36, 37)
C
Caution Cmd Run Stop (35) Coast (27, 28) Current Monitoring And Limits (19)
D
Direction Of Rotation (22) Drive Operation (03-14) Drive Relay Control
E
Electrical Installation Error Status (99)
F
Faults, Warnings And Alarms Freeze Mode (25, 26) Frequency Converter Hardware Setup
J
Jog Frequency And Command (38, 39)
L
Literature
M
Motor And Drive Thermal Protection (15, 16, 18) Motor Ramp-up And Ramp-down Rate (31, 32)
N
Network Connection
P
Parameter Settings Pid Control Functions (61-65) Pid Controller Adjustments: Point Mapping Table
R
Ramp Select (24) Relay Out 1, 2 (40, 41, 43, 44)
S
Set-up 1-4 And Day/ night Operation (17, 29) Sleep Mode (59) Special Functions Start/ stop (23) Start-up Of Fln Control
30

VLT® HVAC Drive FLN Operating I nstructions
5 21 15
8
3 8 8 7
7 7 15
17 9
21 8
17
8
4
7 8
17
19 8
13 25
7 8
7 9 15 7 21
MG.11.Z2.02 – VLT is a registered Danfoss trademark

VLT® HVAC Drive FLN Operating Instructions
Strategy Four Strategy One Strategy Three Strategy Two
T
Terminals 53, 54, (87-88)
V
Vlt Network Strategies
W
Warnings And Alarms (90-94)

I ndex
12 11 12 11
9
11
9

MG.11.Z2.02 – VLT is a registered Danfoss trademark

Documents / Resources

Danfoss VLT HVAC Drives Provide Critical Function with Condition [pdf] Instruction Manual
AQ361180424149en-000201, VLT HVAC Drives Provide Critical Function with Condition, VLT HVAC, Drives Provide Critical Function with Condition, Critical Function with Condition, Function with Condition, with Condition

References

User Manual

Danfoss VLT HVAC Drives Provide Critical Function with Condition

Specifications

Safety and Caution

Installation

FLN Communication

Operation

FAQs

Documents / Resources

References

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