VLT® HVAC Basic Drive Cascade Controller

1.1 Cascade Controller

The Cascade Controller is utilized in pump applications requiring maintenance of a specific pressure ("head") or level across a wide dynamic range. Operating a large pump at variable speed over an extensive range is often inefficient and has practical limitations (around 25% of rated full load speed). The Cascade Controller addresses this by using a frequency converter to manage a variable-speed pump (lead pump) and can stage up to two additional constant-speed pumps. By adjusting the speed of the lead pump, variable-speed control for the entire system is achieved, maintaining constant pressure, minimizing pressure surges, reducing system stress, and ensuring quieter operation.

Constant Speed Pumps (2)

Variable Speed Pumps (1)

Illustration 1.1 Cascade Controller: Depicts a system with one variable speed pump controlled by a frequency converter, and two constant speed pumps managed by a motor starter. A pressure sensor provides feedback to maintain system pressure.

Fixed Lead Pump

For fixed lead pump operation, all motors must be of equal size. The Cascade Controller enables the frequency converter to manage up to 5 equal-sized pumps. The variable pump (lead) connects directly to the frequency converter, while the other 4 pumps are controlled via the drive's two built-in relays and digital input/output terminals (27, 29). Lead pump alternation is not available when the lead pump is fixed.

Lead Pump Alternation

When lead pump alternation is enabled (motors must be of equal size), the frequency converter cycles between pumps to equalize run times. This reduces maintenance, enhances reliability, and extends system lifetime. Alternation can be triggered by a command signal or an event, such as a timer expiring or the lead pump entering sleep mode. Staging of lag pumps is determined by system load. If parameter 25-55 is set to 'Enabled' (Alternate if Load <= 50%), alternation occurs when the load is 50% or less. If set to 'Disabled', alternation happens regardless of load. Total pump capacity is the sum of the lead pump's capacity and the lag pumps' capacities.

Bandwidth Management

To prevent frequent switching of fixed-speed pumps in cascade systems, the desired system pressure is maintained within a defined bandwidth rather than a precise level. The Staging Bandwidth (SBW) defines this operational range. An Override Bandwidth (OBW) can override the SBW for immediate responses to large, rapid pressure changes, preventing premature staging. An Override Bandwidth Timer can be programmed to delay staging until system pressure stabilizes. If the frequency converter trips while the Cascade Controller is active, fixed-speed pumps are staged/de-staged to maintain system head. A wider Fixed Speed Bandwidth is used in such scenarios to minimize pressure fluctuations.

Illustration 1.2 Bandwidth: Shows a graphical representation of system pressure over time, illustrating the concepts of Staging Bandwidth and Override Bandwidth, and how they manage pump staging to maintain pressure within acceptable limits.

1.1.1 System Status and Operation

When the Cascade Controller is enabled, the operational status of each pump and the controller itself is displayed on the LCP (Local Control Panel) via parameters 25-81 (Pump Status) and 25-80 (Cascade Status). The displayed information includes:

• Pump Status: Indicates the status of relays assigned to each pump (Disabled, Off, Running on frequency converter, or Running on mains/motor starter).
• Cascade Status: Shows the status of the Cascade Controller (Disabled, All pumps Off, Fixed speed pumps staging/de-staging, Lead pump alternation occurring).

The frequency converter can enter sleep mode only when the lead pump is operational.

1.1.2 Start/Stop Conditions

Refer to section 5-1* Digital Inputs for detailed information.

1.1.3 Cascade Controller Parameter Detail

The following table details key parameters for the Cascade Controller:

1.2 Installation

1.2.1 Control Terminals

Illustration 1.3 shows all control terminals of the frequency converter. Applying Start (terminal 18), connection between terminal 12-27 and an analog reference (terminal 53 or 54 and 55) make the frequency converter run.

Illustration 1.3 Control Terminals: A diagram showing the layout of control terminals on the frequency converter. Key terminals include: 18 (DIGI IN), 19 (DIGI IN), 27 (DIGI IN/OUT), 29 (DIGI IN/DIGI OUT), 42 (0/4-20mA A OUT / DIG OUT), 45 (0/4-20mA A OUT / DIG OUT), 50 (+10V OUT), 53 (A IN), 54 (A IN), 55 (COM A IN/OUT), 12 (+24V OUT), 61 (Com RS-485), 68 (P RS-485), 69 (N PS-485). Also shows connections for N, P, COMM, GND, and bus termination switches.

1.2.2 Electrical Overview

Illustration 1.4 Electrical Overview: This block diagram illustrates the electrical connections for the frequency converter. It shows the 3-phase power input (L1, L2, L3, PE), connections to the motor (U, V, W, PE), and various analog and digital input/output terminals. It also indicates the availability of UDC and UDC+ on certain models and notes that these are not present on IP20 380-480 V, 30-90 kW units. RS-485 interface connections (61, 68, 69) are also shown.

1.3 Specifications

1.3.1 Product General Specifications

The following tables detail the general specifications for the VLT® HVAC Basic Drive series, including frequency converter output, frame size, RFI class, and PCB coating.

1.4.1 Menu Structure

The following is a hierarchical list of parameters available through the drive's menu system:

• 0-** Operation / Display
  • 0-0* Basic Settings
    • 0-01 Language
    • 0-03 Regional Settings
    • 0-04 Operating State at Power-up
    • 0-06 Grid Type
    • 0-07 Auto DC Braking
  • 0-1* Set-up Operations
    • 0-10 Active Set-up
    • 0-11 Programming Set-up
    • 0-12 Link Set-ups
  • 0-3* LCP Custom Readout
    • 0-30 Custom Readout Unit
    • 0-31 Custom Readout Min Value
    • 0-32 Custom Readout Max Value
    • 0-37 Display Text 1
    • 0-38 Display Text 2
    • 0-39 Display Text 3
  • 0-4* LCP Keypad
    • 0-40 [Hand on] Key on LCP
    • 0-42 [Auto on] Key on LCP
    • 0-44 [Off/Reset] Key on LCP
  • 0-5* Copy/Save
    • 0-50 LCP Copy
    • 0-51 Set-up Copy
  • 0-6* Password
    • 0-60 Main Menu Password
• 1-** Load and Motor
  • 1-0* General Settings
    • 1-00 Configuration Mode
    • 1-01 Motor Control Principle
    • 1-03 Torque Characteristics
    • 1-06 Clockwise Direction
    • 1-08 Motor Control Bandwidth
  • 1-1* Motor Selection
    • 1-10 Motor Construction
    • 1-14 Damping Gain
    • 1-15 Low Speed Filter Time Const
    • 1-16 High Speed Filter Time Const
    • 1-17 Voltage filter time const
  • 1-2* Motor Data
    • 1-20 Motor Power
    • 1-22 Motor Voltage
    • 1-23 Motor Frequency
    • 1-24 Motor Current
    • 1-25 Motor Nominal Speed
    • 1-26 Motor Cont. Rated Torque
    • 1-29 Automatic Motor Adaption (AMA)
  • 1-3* Adv. Motor Data
    • 1-30 Stator Resistance (Rs)
    • 1-33 Stator Leakage Reactance (X1)
    • 1-35 Main Reactance (Xh)
    • 1-37 d-axis Inductance (Ld)
    • 1-39 Motor Poles
  • 1-4* Adv. Motor Data II
    • 1-40 Back EMF at 1000 RPM
    • 1-42 Motor Cable Length
    • 1-43 Motor Cable Length Feet
  • 1-5* Load Indep. Setting
    • 1-50 Motor Magnetisation at Zero Speed
    • 1-52 Min Speed Normal Magnetising [Hz]
    • 1-55 U/f Characteristic - U
    • 1-56 U/f Characteristic - F
  • 1-6* Load Depen. Setting
    • 1-60 Low Speed Load Compensation
    • 1-61 High Speed Load Compensation
    • 1-62 Slip Compensation
    • 1-63 Slip Compensation Time Constant
    • 1-64 Resonance Dampening
    • 1-65 Resonance Dampening Time Constant
    • 1-66 Min. Current at Low Speed
  • 1-7* Start Adjustments
    • 1-71 Start Delay
    • 1-72 Start Function
    • 1-73 Flying Start
  • 1-8* Stop Adjustments
    • 1-80 Function at Stop
    • 1-82 Min Speed for Function at Stop [Hz]
  • 1-9* Motor Temperature
    • 1-90 Motor Thermal Protection
    • 1-93 Thermistor Source
• 2-** Brakes
  • 2-0* DC-Brake
    • 2-00 DC Hold/Motor Preheat Current
    • 2-01 DC Brake Current
    • 2-02 DC Braking Time
    • 2-04 DC Brake Cut In Speed
    • 2-06 Parking Current
    • 2-07 Parking Time
  • 2-1* Brake Energy Funct.
    • 2-10 Brake Function
    • 2-16 AC Brake, Max current
    • 2-17 Over-voltage Control
• 3-** Reference / Ramps
  • 3-0* Reference Limits
    • 3-02 Minimum Reference
    • 3-03 Maximum Reference
  • 3-1* References
    • 3-10 Preset Reference
    • 3-11 Jog Speed [Hz]
    • 3-14 Preset Relative Reference
    • 3-15 Reference 1 Source
    • 3-16 Reference 2 Source
    • 3-17 Reference 3 Source
  • 3-4* Ramp 1
    • 3-41 Ramp 1 Ramp Up Time
    • 3-42 Ramp 1 Ramp Down Time
  • 3-5* Ramp 2
    • 3-51 Ramp 2 Ramp Up Time
    • 3-52 Ramp 2 Ramp Down Time
  • 3-8* Other Ramps
    • 3-80 Jog Ramp Time
    • 3-81 Quick Stop Ramp Time
• 4-** Limits / Warnings
  • 4-1* Motor Limits
    • 4-10 Motor Speed Direction
    • 4-12 Motor Speed Low Limit [Hz]
    • 4-14 Motor Speed High Limit [Hz]
    • 4-18 Current Limit
    • 4-19 Max Output Frequency
  • 4-4* Adj. Warnings 2
    • 4-40 Warning Freq. Low
    • 4-41 Warning Freq. High
  • 4-5* Adj. Warnings
    • 4-50 Warning Current Low
    • 4-51 Warning Current High
    • 4-54 Warning Reference Low
    • 4-55 Warning Reference High
    • 4-56 Warning Feedback Low
    • 4-57 Warning Feedback High
    • 4-58 Missing Motor Phase Function
  • 4-6* Speed Bypass
    • 4-61 Bypass Speed From [Hz]
    • 4-63 Bypass Speed To [Hz]
    • 4-64 Semi-Auto Bypass Set-up
• 5-** Digital In/Out
  • 5-0* Digital I/O mode
    • 5-00 Digital Input Mode
    • 5-01 Terminal 27 Mode
    • 5-02 Terminal 29 Mode
    • 5-03 Digital Input 29 Mode
  • 5-1* Digital Inputs
    • 5-10 Terminal 18 Digital Input
    • 5-11 Terminal 19 Digital Input
    • 5-12 Terminal 27 Digital Input
    • 5-13 Terminal 29 Digital Input
  • 5-3* Digital Outputs
    • 5-30 Terminal 27 Digital Output
    • 5-31 Terminal 29 Digital Output
    • 5-34 On Delay, Digital Output
    • 5-35 Off Delay, Digital Output
  • 5-4* Relays
    • 5-40 Function Relay
    • 5-41 On Delay, Relay
    • 5-42 Off Delay, Relay
  • 5-5* Pulse Input
    • 5-50 Term. 29 Low Frequency
    • 5-51 Term. 29 High Frequency
    • 5-52 Term. 29 Low Ref./Feedb. Value
    • 5-53 Term. 29 High Ref./Feedb. Value
  • 5-9* Bus Controlled
    • 5-90 Digital & Relay Bus Control
• 6-** Analog In/Out
  • 6-0* Analog I/O Mode
    • 6-00 Live Zero Timeout Time
    • 6-01 Live Zero Timeout Function
  • 6-1* Analog Input 53
    • 6-10 Terminal 53 Low Voltage
    • 6-11 Terminal 53 High Voltage
    • 6-12 Terminal 53 Low Current
    • 6-13 Terminal 53 High Current
    • 6-14 Terminal 53 Low Ref./Feedb. Value
    • 6-15 Terminal 53 High Ref./Feedb. Value
    • 6-16 Terminal 53 Filter Time Constant
    • 6-19 Terminal 53 mode
  • 6-2* Analog Input 54
    • 6-20 Terminal 54 Low Voltage
    • 6-21 Terminal 54 High Voltage
    • 6-22 Terminal 54 Low Current
    • 6-23 Terminal 54 High Current
    • 6-24 Terminal 54 Low Ref./Feedb. Value
    • 6-25 Terminal 54 High Ref./Feedb. Value
    • 6-26 Terminal 54 Filter Time Constant
    • 6-29 Terminal 54 mode
  • 6-7* Analog/Digital Output 45
    • 6-70 Terminal 45 Mode
    • 6-71 Terminal 45 Analog Output
    • 6-72 Terminal 45 Digital Output
    • 6-73 Terminal 45 Output Min Scale
    • 6-74 Terminal 45 Output Max Scale
    • 6-76 Terminal 45 Output Bus Control
  • 6-9* Analog/Digital Output 42
    • 6-90 Terminal 42 Mode
    • 6-91 Terminal 42 Analog Output
    • 6-92 Terminal 42 Digital Output
    • 6-93 Terminal 42 Output Min Scale
    • 6-94 Terminal 42 Output Max Scale
    • 6-96 Terminal 42 Output Bus Control
  • 6-98 Drive Type
• 8-** Comm. and Options
  • 8-0* General Settings
    • 8-01 Control Site
    • 8-02 Control Source
    • 8-03 Control Timeout Time
    • 8-04 Control Timeout Function
  • 8-3* FC Port Settings
    • 8-30 Protocol
    • 8-31 Address
    • 8-32 Baud Rate
    • 8-33 Parity / Stop Bits
    • 8-35 Minimum Response Delay
    • 8-36 Maximum Response Delay
    • 8-37 Maximum Inter-char delay
  • 8-4* FC MC protocol set
    • 8-42 PCD Write Configuration
    • 8-43 PCD Read Configuration
  • 8-5* Digital/Bus
    • 8-50 Coasting Select
    • 8-51 Quick Stop Select
    • 8-52 DC Brake Select
    • 8-53 Start Select
    • 8-54 Reversing Select
    • 8-55 Set-up Select
    • 8-56 Preset Reference Select
  • 8-7* BACnet
    • 8-70 BACnet Device Instance
    • 8-72 MS/TP Max Masters
    • 8-73 MS/TP Max Info Frames
    • 8-74 "I am" Service
    • 8-75 Intialisation Password
    • 8-79 Protocol Firmware version
  • 8-8* FC Port Diagnostics
    • 8-80 Bus Message Count
    • 8-81 Bus Error Count
    • 8-82 Slave Messages Rcvd
    • 8-83 Slave Error Count
    • 8-84 Slave Messages Sent
    • 8-85 Slave Timeout Errors
    • 8-88 Reset FC port Diagnostics
  • 8-9* Bus Feedback
    • 8-94 Bus Feedback 1
• 13-** Smart Logic
  • 13-0* SLC Settings
    • 13-00 SL Controller Mode
    • 13-01 Start Event
    • 13-02 Stop Event
    • 13-03 Reset SLC
  • 13-1* Comparators
    • 13-10 Comparator Operand
    • 13-11 Comparator Operator
    • 13-12 Comparator Value
  • 13-2* Timers
    • 13-20 SL Controller Timer
  • 13-4* Logic Rules
    • 13-40 Logic Rule Boolean 1
    • 13-41 Logic Rule Operator 1
    • 13-42 Logic Rule Boolean 2
    • 13-43 Logic Rule Operator 2
    • 13-44 Logic Rule Boolean 3
  • 13-5* States
    • 13-51 SL Controller Event
    • 13-52 SL Controller Action
• 14-** Special Functions
  • 14-0* Inverter Switching
    • 14-01 Switching Frequency
    • 14-03 Overmodulation
    • 14-08 Damping Gain Factor
  • 14-1* Mains On/Off
    • 14-12 Function at Mains Imbalance
  • 14-2* Reset Functions
    • 14-20 Reset Mode
    • 14-21 Automatic Restart Time
    • 14-22 Operation Mode
    • 14-23 Typecode Setting
    • 14-27 Action At Inverter Fault
    • 14-28 Production Settings
    • 14-29 Service Code
  • 14-4* Energy Optimising
    • 14-40 VT Level
    • 14-41 AEO Minimum Magnetisation
  • 14-5* Environment
    • 14-50 RFI Filter
    • 14-51 DC-Link Voltage Compensation
    • 14-52 Fan Control
    • 14-53 Fan Monitor
    • 14-55 Output Filter
  • 14-6* Auto Derate
    • 14-63 Min Switch Frequency
• 15-** Drive Information
  • 15-0* Operating Data
    • 15-00 Operating hours
    • 15-01 Running Hours
    • 15-02 kWh Counter
    • 15-03 Power Up's
    • 15-04 Over Temp's
    • 15-05 Over Volt's
    • 15-06 Reset kWh Counter
    • 15-07 Reset Running Hours Counter
  • 15-3* Alarm Log
    • 15-30 Alarm Log: Error Code
    • 15-31 InternalFaultReason
  • 15-4* Drive Identification
    • 15-40 FC Type
    • 15-41 Power Section
    • 15-42 Voltage
    • 15-43 Software Version
    • 15-44 Ordered TypeCode
    • 15-46 Drive Ordering No
    • 15-47 Power Card Ordering No
    • 15-48 LCP Id No
    • 15-49 SW ID Control Card
    • 15-50 SW ID Power Card
    • 15-51 Drive Serial Number
    • 15-53 Power Card Serial Number
  • 15-9* Parameter Info
    • 15-92 Defined Parameters
    • 15-97 Application Type
    • 15-98 Drive Identification
  • 16-** Data Readouts
    • 16-0* General Status
      • 16-00 Control Word
      • 16-01 Reference [Unit]
      • 16-02 Reference [%]
      • 16-03 Status Word
      • 16-05 Main Actual Value [%]
      • 16-09 Custom Readout
    • 16-1* Motor Status
      • 16-10 Power [kW]
      • 16-11 Power [hp]
      • 16-12 Motor Voltage
      • 16-13 Frequency
      • 16-14 Motor current
      • 16-15 Frequency [%]
      • 16-18 Motor Thermal
    • 16-3* Drive Status
      • 16-30 DC Link Voltage
      • 16-34 Heatsink Temp.
      • 16-35 Inverter Thermal
      • 16-36 Inv. Nom. Current
      • 16-37 Inv. Max. Current
      • 16-38 SL Controller State
    • 16-5* Ref. & Feedb.
      • 16-50 External Reference
      • 16-52 Feedback[Unit]
    • 16-6* Inputs & Outputs
      • 16-60 Digital Input
      • 16-61 Terminal 53 Setting
      • 16-62 Analog Input AI53
      • 16-63 Terminal 54 Setting
      • 16-64 Analog Input AI54
      • 16-65 Analog Output AO42 [mA]
      • 16-66 Digital Output
      • 16-67 Pulse Input #29 [Hz]
      • 16-71 Relay Output [bin]
      • 16-72 Counter A
      • 16-73 Counter B
      • 16-79 Analog Output AO45
    • 16-8* Fieldbus & FC Port
      • 16-86 FC Port REF 1
    • 16-9* Diagnosis Readouts
      • 16-90 Alarm Word
      • 16-91 Alarm Word 2
      • 16-92 Warning Word
      • 16-93 Warning Word 2
      • 16-94 Ext. Status Word
      • 16-95 Ext. Status Word 2
  • 18-** Info & Readouts
    • 18-1* Fire Mode Log
      • 18-10 FireMode Log:Event
  • 20-** Drive Closed Loop
    • 20-0* Feedback
      • 20-00 Feedback 1 Source
      • 20-01 Feedback 1 Conversion
    • 20-8* PI Basic Settings
      • 20-81 PI Normal/ Inverse Control
      • 20-83 PI Start Speed [Hz]
      • 20-84 On Reference Bandwidth
    • 20-9* PI Controller
      • 20-91 PI Anti Windup
      • 20-93 PI Proportional Gain
      • 20-94 PI Integral Time
      • 20-97 PI Feed Forward Factor
  • 22-** Appl. Functions
    • 22-4* Sleep Mode
      • 22-40 Minimum Run Time
      • 22-41 Minimum Sleep Time
      • 22-43 Wake-Up Speed [Hz]
      • 22-44 Wake-Up Ref./FB Diff
      • 22-45 Setpoint Boost
      • 22-46 Maximum Boost Time
      • 22-47 Sleep Speed [Hz]
    • 22-6* Broken Belt Detection
      • 22-60 Broken Belt Function
      • 22-61 Broken Belt Torque
      • 22-62 Broken Belt Delay
  • 24-** Appl. Functions 2
    • 24-0* Fire Mode
      • 24-00 FM Function
      • 24-05 FM Preset Reference
      • 24-09 FM Alarm Handling
    • 24-1* Drive Bypass
      • 24-10 Drive Bypass Function
      • 24-11 Drive Bypass Delay Time
  • 25-** Cascade Controller
    • 25-0* System Settings
      • 25-00 Cascade Controller
      • 25-04 Pump Cycling
      • 25-05 Fixed Lead Pump
      • 25-06 Number of Pumps
    • 25-2* Bandwidth Settings
      • 25-20 Staging Bandwidth
      • 25-21 Override Bandwidth
      • 25-22 Fixed Speed Bandwidth
      • 25-23 SBW Staging Delay
      • 25-24 SBW Destaging Delay
      • 25-25 OBW Time
    • 25-27 Stage Function
      • 25-27 Stage Function
      • 25-28 Stage Function Time
    • 25-29 Destage Function
      • 25-29 Destage Function
      • 25-30 Destage Function Time
    • 25-4* Staging Settings
      • 25-42 Staging Threshold
      • 25-43 Destaging Threshold
      • 25-45 Staging Speed [Hz]
      • 25-47 Destaging Speed [Hz]
    • 25-5* Alternation Settings
      • 25-50 Lead Pump Alternation
      • 25-51 Alternation Event
      • 25-52 Alternation Time Interval
      • 25-53 Alternation Timer Value
      • 25-55 Alternate if Load <= 50%
      • 25-56 Staging Mode at Alternation
      • 25-57 Relays per Pump
      • 25-58 Run Next Pump Delay
      • 25-59 Run on Mains Delay
    • 25-8* Status
      • 25-80 Cascade Status
      • 25-81 Pump Status
      • 25-84 Pump ON Time
    • 25-9* Service
      • 25-90 Pump Interlock
  • 38-** Debug only - see PNU 1429 (service-code)
    • 38-0* All debug parameters
      • 38-00 TestMonitorMode
      • 38-01 Version And Stack
      • 38-06 LCPEdit Set-up
      • 38-07 EEPROMDdataVers
      • 38-08 PowerDataVariantID
      • 38-09 AMA Retry
      • 38-10 DAC selection
      • 38-12 DAC scale
      • 38-20 MOC_TestUS16
      • 38-21 MOC_TestS16
      • 38-23 TestMocFunctions
      • 38-24 DC Link Power Measurement
      • 38-25 CheckSum
      • 38-30 Analog Input 53 (%)
      • 38-31 Analog Input 54 (%)
      • 38-32 Input Reference 1
      • 38-33 Input Reference 2
      • 38-34 Input Reference Setting
      • 38-35 Feedback (%)
      • 38-36 Fault Code
      • 38-37 Control Word
      • 38-38 ResetCountersControl
      • 38-39 Active Setup For BACnet
      • 38-40 Name Of Analog Value 1 For BACnet
      • 38-41 Name Of Analog Value 3 For BACnet
      • 38-42 Name Of Analog Value 5 For BACnet
      • 38-43 Name Of Analog Value 6 For BACnet
      • 38-44 Name Of Binary Value 1 For BACnet
      • 38-45 Name Of Binary Value 2 For BACnet
      • 38-46 Name Of Binary Value 3 For BACnet
      • 38-47 Name Of Binary Value 4 For BACnet
      • 38-48 Name Of Binary Value 5 For BACnet
      • 38-49 Name Of Binary Value 6 For BACnet
      • 38-50 Name Of Binary Value 21 For BACnet
      • 38-51 Name Of Binary Value 22 For BACnet
      • 38-52 Name Of Binary Value 33 For BACnet
      • 38-53 Bus Feedback 1 Conversion
      • 38-54 Run Stop Bus Control
      • 38-58 Inverter ETR counter
      • 38-59 Rectifier ETR counter
      • 38-60 DB_ErrorWarnings
      • 38-61 Extended Alarm Word
      • 38-69 AMA_DebugS32
      • 38-74 AOCDebug0
      • 38-75 AOCDebug1
      • 38-76 AO42_FixedMode
      • 38-77 AO42_FixedValue
      • 38-78 DI_TestCounters
      • 38-79 Protect Func. Counter
      • 38-80 Highest Lowest Couple
      • 38-81 DB_SendDebugCmd
      • 38-82 MaxTaskRunningTime
      • 38-83 DebugInformation
      • 38-85 DB_OptionSelector
      • 38-86 EEPROM_Address
      • 38-87 EEPROM_Value
      • 38-88 Logger Time Remain
      • 38-90 LCP FC-Protocol select
      • 38-91 Motor Power Internal
      • 38-92 Motor Voltage Internal
      • 38-93 Motor Frequency Internal
      • 38-94 Lsigma
      • 38-95 DB_SimulateAlarmWarningExStatus
      • 38-96 Data Logger Password
      • 38-97 Data Logging Period
      • 38-98 Signal to Debug
      • 38-99 Signed Debug Info