KMC CONTROLS STE-9000 Net Sensor User Guide

Configuring Communication Settings
Details on configuring communication settings can be found in the user manual provided by the manufacturer. Ensure proper communication parameters are set for seamless operation.

Configuring Offsets and Delta-T Setpoints
Adjust offsets and delta-T setpoints as per system requirements. Refer to the user manual for detailed instructions on how to configure these settings

Configuring System Settings
Access the system settings menu and configure settings according to your specific needs. Follow the instructions provided in the manual to make necessary adjustments.

FAQ (Frequently Asked Questions)

Q: What should I do if the damper stroke learning process fails?
A: If the damper stroke learning process fails, check the connections and ensure proper setup. Refer to the troubleshooting section in the manual for further assistance.
Q: How can I detect faults and diagnose issues with the system?
A: The system monitors various object types for faults. Check the fault detection and diagnostics section in the manual for guidance on identifying and resolving common issues.

INTRODUCTION

While possible, completing checkout and commissioning of an Airflow Measurement System using a STE-9000 Series NetSensor is difficult, due to the nature of the NetSensor interface. Preferably, if available, use one of the following configuration tools:

KMC Connect Lite app (to configure basic communication settings only)

BAC-5051(A)E router (See the application guide, BAC-5051(A)E Pages for Configuring an AFMS.)
Ethernet model AFMS configuration web pages (See the application guide, KMC AFMS Ethernet Model Configuration Web Pages.)

KMC Connect or KMC Total Control software
KMC N4 Workbench software with KMC Converge modules

In all cases, use the Note Sheets for AFMS Checkout and Commissioning together with the best available configuration tool’s application guide.

CONNECTING A NETSENSOR

A digital STE-9000 Series NetSensor can be used for configuring the controller.

Plug an Ethernet patch cable 1 connected to an STE-9000 Series NetSensor into the (yellow) ROOM SENSOR port 2 of the controller.

CAUTION
On “E” models, do NOT plug a cable meant for Ethernet communications into the Room Sensor port! The Room Sensor port powers a NetSensor, and the supplied voltage may damage an Ethernet switch or router.

SELECTING AN APPLICATION

List of Applications
KMC Airflow Measurement System controllers come with the following applications.

BAC-9311C(E)-AFMS:

AFMS-E (standard AFMS application with English units—the default)
AFMS-M (standard AFMS application with metric units)

BAC-5901-C(E)-AFMS:

AFMS-E (standard AFMS application with English units—the default)
AFMS-M (standard AFMS application with metric units)
AFMPA–E (OAD pressure assist AFMS application with English units)
AFMPA-M (OAD pressure assist AFMS application with metric units)
AFMRD-E (RAD pressure assist AFMS application with English units)
AFMRD-M (RAD pressure assist AFMS application with English units)

NOTE: Select the desired application before configuring other settings. Changing the application later would reset most settings back to their defaults.

About the OAD Pressure Assist Application
When to Select the OAD Pressure Assist Application The OAD pressure assist application (AFMPA-E or AFMPA-M) on a BAC-5901C(E)-AFMS should be selected if a transducer and airflow pickup tubes were installed at the outside air damper for pressure assist measurements. This should be done if the unit has any of the following non-standard features:

a relief fan that is not constant speed, or is not commanded to operate via mixed air damper position
a return fan that is not controlled by a supply fan / return fan offset
a bypass damper utilized to bypass a heat recovery system
return VAV boxes
a supply to return bypass (typically found in zone damper applications, or where a bypass damper is used in place of a VFD)

If any of these non-standard features are present, the pressure of the unit’s mixed and/or return air sections may change, which will affect airflow. The OAD pressure assist application measures and accounts for these pressure changes in the airflow measurement calculations.

How the OAD Pressure Assist Application Works
During its learn mode, the standard application records the percentage of outside verses return airflow in the mixed air chamber at each position of the unit’s damper. The OAD pressure assist application’s learn mode records this as well as the differential pressure and airflow rate across the outside air damper. Thereafter, the OAD pressure assist application programming can adjust the outside verses return airflow calculation accordingly using the additional measurements.

About the RAD Pressure Assist Application
When to Select the RAD Pressure Assist Application The RAD pressure assist application (AFMRD-E or AFMRD-M) on a BAC-5901C(E)-AFMS should be selected if a transducer and airflow pickup tubes were installed at the return air damper for pressure assist measurements. This should be done if the unit has more than one outside air damper.

How the RAD Pressure Assist Application Works
During its learn mode, the standard application records the percentage of outside verses return airflow in the mixed air chamber at each position of the unit’s damper. The RAD pressure assist application’s learn mode records this as well as the differential pressure and airflow rate across the return air damper. Thereafter, the RAD pressure assist application programming can adjust the outside verses return airflow calculation accordingly using the additional measurements.

How to Select an Application

STEPS	DISPLAY1
1.From the home display, press the Up and Down buttons together for at least 6 seconds. 2.Enter the level 2 password. The display changes to CNFG after Password 2 is correctly entered.NOTE: For the default level 2 password, see the Conquest Controllers Default Password Technical Bulletin (TB150716) after logging into the KMC website.
3. At CNFG, press the Enter button to enter the Configuration menu.
4. From STPT, press the Up or Down buttons to cycle to RSTR. 5. At RSTR, press the Enter button to access the restore application options. NOTE: RSTR will stop flashing and an application option will flash in the lower display. 6. Press the Up or Down buttons to cycle to the desired application (see List of Applications on page 3). 7. Press the Enter button to make the choice. NOTE: The controller will restart for the change to take effect.

CONFIGURING COMMUNICATION SETTINGS

STEPS	DISPLAY
1. From the home display, press the Up and Down buttons together for at least 6 seconds. 2. Enter the level 2 password. The display changes to CNFG after Password 2 is correctly entered. NOTE: For the default level 2 password, see the Conquest Controllers Default Password Technical Bulletin (TB150716) after logging into the KMC website.
3. At CNFG, press the Up or Down buttons to cycle to COMM.
4. At COMM, press the Enter button to select the Communication parameters menu. 5. Use the Up, Down, and Enter buttons as needed to set the device instance, MAC address, and/or baud rate. NOTE: When all communication parameters have been configured, the display will automatically return to flashing CNFG..
6. Continue to step 3 of the next section of this application guide to configure the system parameters.

CONFIGURING OFFSETS AND DELTA-T SETPOINTS

STEPS	DISPLAY
1. From the home display, press the Up and Down buttons together for at least 6 seconds. 2. Enter the level 2 password. The display changes to CNFG after Password 2 is correctly entered. NOTE: For the default level 2 password, see the Conquest Controllers Default Password Technical Bulletin (TB150716) by logging into the KMC website.
3. From CNFG, press the Enter button to enter the Configuration menu.
4. From STPT, press the Enter button to enter the Setpoints sub-menu.
5. At LOWL, press the Up or Down buttons to input the low temperature limit value. 6. Press the Enter button to save the value and advance to OATO.
7. Press the Up or Down buttons to input the outdoor air temperature offset. 8. Press the Enter button to save the value and advance to RATO.
9. Press the Up or Down buttons to input the return air temperature offset. 10. Press the Enter button to save the value and advance to MATO.
11. Press the Up or Down buttons to input the mixed air temperature offset. 12. Press the Enter button to save the value and advance to MDEL.

KMC AFMS with STE-9xxx NetSensor Application Guide, AG220412B

STEPS	DISPLAY
13. Press the Up or Down buttons to input the minimum delta T. NOTE: The minimum delta T is the temperature difference below which Learn mode will halt. If the difference between the outdoor and return air falls below this value during the Learn mode process, Learn mode will not complete. 14. Press the Enter button to save the value and advance to ADEL.
15. Press the Up or Down buttons to input the delta T needed to auto-start learn mode. NOTE: The default is 20 degrees Fahrenheit difference, which is the recommended minimum. It cannot be decreased to less than 15 degrees Fahrenheit difference. 16. Press the Enter button to save the value and automatically go back to the flashing STPTdisplay.
17. Continue to step 4 of the next section of this application guide to configure the system settings. (See Configuring System Settings on page 8.)

CONFIGURING SYSTEM SETTINGS

STEPS	DISPLAY
1. From the home display, press the Up and Down buttons together for at least 6 seconds. 2. Enter the level 2 password. The display changes to CNFG after Password 2 is correctly entered. NOTE: For the default level 2 password, see the Conquest Controllers Default Password Technical Bulletin (TB150716) by logging into the KMC website.
3. From CNFG, press the Enter button to enter the Configuration menu.
4. From STPT, press the Up or Down buttons to cycle to SYST.
5. At SYST, press the Enter button to enter the System settings sub-menu.
6. At SQFT, press the Up or Down buttons to enter the supply air area (the square foot measurement of the supply air duct or fan inlet where the flow pickup tubes were installed). 7. Press the Enter button to save the value and advance to CALI.
8. Press the Up or Down buttons to input the supply air calibration multiplier (obtained from a balancer). 9. Press the Enter button to save the value and advance to OFFS.

STEPS	DISPLAY
10. Press the Up or Down buttons to input the supply air offset (obtained from a balancer). 11. Press the Enter button to save the value and advance to STRK.
12. Press the Up or Down buttons to enter the time in seconds that it takes for the damper to go from 100% open to closed. 13. Press the Enter button to save the value and advance to REV.
14. Press the Up or Down buttons to toggle choices for the direction that the damper moves: NORMAL(normal) or REVERSE(reverse- action). 15. Press the Enter button to save the choice and advance to IREV.
16. Press the Up or Down buttons to toggle choices for the inclinometer action: NORMALor REVERSE. NOTE: For the standard (AMSO) application or OAD Pressure Assist (AMSOP) application, if the inclinometer was mounted on a horizontal return air damper blade because the outside air damper blades are vertical, then you must set the inclinometer action to REVERSE. 17. Press the Enter button to save the choice and advance to VOLT.
18. Press the Up or Down buttons to toggle choices for the voltage of the actuator: 2-10 volts or 0-10 volts. 19. Press the Enter button to save the choice and advance to ENLL.

STEPS	DISPLAY
20. Low limit is ON by default. If not needed, press the Up or Down buttons to toggle it to OFF. CAUTION Low limit is recommended to prevent freezing of the equipment. NOTE: The default low limit is 37 degrees Fahrenheit. The low temperature limit value can be changed in the (System) Setpoints menu. See Configuring Offsets and Delta-T Setpoints on page 6. 21. Press the Enter button to save the choice and advance to SPAC.
22. Press the Up or Down buttons to enter the area in cubic feet of the space served by the unit. NOTE: This allows the correct air exchanges per hour to show on the home display. 23. Press the Enter button to save the value and return to the flashing STPTdisplay.
24. Press the Up or Down buttons several times to cycle to EXIT.
25. Press the Enter button to return to the home display.

LEARNING DAMPER STROKE

Accessing the Command Menu
Before the AFMS can run learning Mode, it must first learn the minimum and maximum angles of the damper stroke using the inclinometer. The menu option to start Learn Damper Stroke is accessed from the Level 1 Command menu. Follow the steps below to access the Command menu.

STEPS	DISPLAY
1. From the home display, press the Enter button to access the Level 1 menus. (If a Level 1 password was set up, enter it.) NOTE: If Level 1 is already on the Command menu, the display will now show MODE. In that case, skip to Starting Learn Damper Stroke on page 12
2. Press the Enter button several times until MENU shows on the display. 3. Press the Up or Down buttons to select COMMAND, then press the Enter button to make the choice and return to the home display.
4. Wait about 5 seconds, then press the Enter button to access the Command menu. NOTE: If Level 1 switched to the Command menu, MODE will now show on the display. NOTE: If you accessed Level 1 again too quickly, it will not have completed switching to the Command menu. It will still be on whatever menu it was before. In that case, repeat steps 2 to 4.

Starting Learn Damper Stroke
To make the controller learn the minimum and maximum angles of the damper stroke, follow these steps:

STEPS

DISPLAY

1. From MODE (under the Command menu in Level 1), press Enter once to advance to LSTR.

2. Press the Up of Down button to toggle Learn Damper Stroke to ON.
3. Press the Enter button to make the choice and start Learn Damper Stroke.
NOTE: The controller will begin to drive the damper using the actuator.

KMC-CONTROLS-STE-9000-Net-Sensor- (2)

STARTING LEARNING MODE

Before Starting Learning Mode
For valid results, ensure that:

The square foot measurement of the supply air duct has been entered. See Config-uring System Settings on page 8.
The controller has learned the minimum and maximum angles of the damper stroke. See Learning Damper Stroke on page 11.
The supply air fan is running at a normal, steady rate (i.e. without hunting or sporad-ic spikes)

If the unit has a heat recovery wheel, it is turned off.
If the unit has bypass damper, it is set to 100% open.

NOTE: The heating and cooling functions may be left on, as long as the MAT sensor is located before any heating and cooling sources.

Checking Learn Ready Status
Complete the procedures below to check whether the system is ready to run learning mode now or should be set to run it later.

Accessing Learn Ready Status from the Status Menu

STEPS	DISPLAY
1. From the home display, press the Enter button to access the Level 1 menus. (If a Level 1 password was set up, enter it.) NOTE: If Level 1 is already on the Status menu, the display will now show REDY. In that case, skip to step 5.
2. Press the Enter button several times until MENU shows on the display. 3. Press the Up or Down buttons to select STATUS, then press the Enter button to make the choice and return to the home display.

STEPS	DISPLAY
4. Wait about 5 seconds, then press the Enter button to access the Status menu. NOTE: If Level 1 switched to the Status menu, REDY will now show on the display. NOTE: If you accessed Level 1 again too quickly, it will not have completed switching to the Status menu. It will still be on whatever menu it was before. In that case, repeat steps 2 to 4. 5. Take note of the learn ready status – NOT REA (not ready) or READY (ready).
6. Press the Enter button 3 times to advance to SENF (sensor fault). 7. Take note of whether a sensor fault is indicated at the bottom half of the display – FAULT (fault) or NORMAL (normal).

Interpreting Learn Ready Status
If the lower half of the REDY display shows READY (ready), you may start learning mode now. In that case, go to Manually Starting Learning Mode on page 15.
The lower half of the REDY display shows NOT REA (not ready) if any of the following are true:

A sensor fault is detected (a sensor is missing or shorted)
The controller is in the process of learning the damper stroke
Low Limit is enabled and the outside air temperature is less than the low temperature limit setpoint (37 degrees Fahrenheit default).

The current delta-T is less than the minimum delta-T setpoint (10 degrees default difference).

NOTE: To change the low temperature limit and minimum delta-T setpoints, see Configuring Offsets and Delta-T Setpoints on page 6.

NOTE: The delta-T is the difference between the outside and return air temperatures.
If no sensor fault was detected and the controller is not in the process of learning the damper stroke, you may choose to enable the controller to auto-start learning mode when it detects favorable temperatures at a later time. In that case, go to Enabling Learning Mode to Auto-Start on page 15.

Manually Starting Learning Mode

STEPS	DISPLAY
1. Access the Command Menu. See Accessing the Command Menu on page 11 for details. NOTE: MODEwill show on the display. 2. Press the Enter button twice to advance to LMOD.
3. Press the Up or Down button to toggle Learning Mode to ON. 4. Press the Enter button to make the choice and start Learning Mode.

Enabling Learning Mode to Auto-Start

STEPS	DISPLAY
1. Access the Command Menu. See Accessing the Command Menu on page 11 for details. NOTE: MODE will show on the display. 2. Press the Enter button three times to advance to AUTO.
3. Press the Up or Down button to toggle Auto-start to ON. 4. Press the Enter button to save the choice.

The controller will automatically start learning mode when the delta-T becomes greater than the delta-T needed to autostart learning mode setpoint (20 degrees default difference.)

NOTE: To change the delta-T needed to autostart learning mode setpoint, see Configuring Offsets and Delta-T Setpoints on page 6.

If low limit is enabled (recommended) the controller will only run learning mode if the outside air temperature also remains above the low temperature limit setpoint.

NOTE: To change the low limit setpoint, see Configuring Offsets and Delta-T Setpoints on page 6.

SELECTING CONTROL MODES

Selecting a Control Mode from the Command Menu

Access the Command Menu. See Accessing the Command
Menu on page 11 for details.
NOTE: The display will then show MODE.
Press the Up and Down buttons to toggle to the desired control mode:
- CFM CTR (Outside Air CFM Control Mode on page 16)
- DMPR PO (Damper Position Control Mode on page 16)
- PASS TR (Pass Through Control Mode on page 17)
- MIXED A (Mixed Air Temperature Control Mode on page 17)
Press the Enter button to save the choice.

Outside Air CFM Control Mode

When outside air CFM control mode is selected, the air damper position is modulated to maintain the outside air CFM setpoint.
If the mixed air temperature reaches the low limit, the outside air damper will modulate toward closed to prevent freezing of the equipment.
If an occupancy sensor is used, the control mode will only run when the served space is occupied.

Damper Position Control Mode

When damper position control mode is selected, the air damper is maintained at the damper position setpoint (0-100% open).
If the mixed air temperature reaches the low limit, the outside air damper will modulate toward closed to prevent freezing of the equipment.

If an occupancy sensor is used, the control mode will only run when the served space is occupied.

Pass Through Control Mode
Pass through control mode allows an external controller to control the actuator. This is done by passing the voltage signal from the external controller though the AI3/UI3 terminal (on the AFMS controller) to the damper command analog value (AV7/AO7 on a BAC-5901-AFMS, or AV9/UO9 on a BAC-9311-AFMS). Pass through will only occur when the AFMS controller is not in learning mode. If learning mode starts, pass through mode will stop until the learning mode sequence completes.

CAUTION
The external controller must have low limit and other safeties configured to prevent damage to the equipment!

Mixed Air Temperature Control Mode

When mixed air position control mode is selected, the air damper is modulated to maintain the mixed air temperature setpoint.
If the mixed air temperature reaches the low limit, the outside air damper will modulate toward closed to prevent freezing of the equipment.

If an occupancy sensor is used, the control mode will only run when the served space is occupied.

FAULT DETECTION AND DIAGNOSTICS

Object Types Monitored
The controller programming includes four system diagnostic indicators in the form of BACnet binary value objects:

Missing or shorted temperature sensors (SENF, BV18)

Damper fault (DMPF, BV19)
Excess outdoor Air CFM (OAF, BV20)
Mixed air temperature out of range (MIXF, BV21)

Missing/Shorted Temperature Sensors (BV18)
BV18 is set to Active (Sensor Issue) for any or the following conditions:

The OAT, MAT, or RAT sensor is missing (powered off or not connected).
The OAT, MAT, or RAT sensor is shorted.

Damper Fault (BV19)
BV19 is set to Active (On) when all the following conditions are true:

Damper position control mode is selected
The system is not running learning mode

The system is not learning the damper stroke
The damper position is more than 15% off (in either direction) of the damper setpoint for longer (in seconds) than the damper should take to stroke the opening

Excess Outdoor Air CFM (BV20)
BV20 is set to Active (Fault) when all the following conditions are true:

CFM control mode is selected
The system is not running Learn mode
The system is not learning the damper stroke

The outdoor air CFM (as calculated by the AFMS) is more than 15% off of the Outside Air CFM setpoint, for longer (in seconds) than the damper should take to stroke the opening

Mixed Air Temperature Out of Range (BV21)
BV21 is set to Active (On) when all the following conditions are true:

Mixed Air control mode is selected

The system is not running Learn mode
The system is not learning the damper stroke
The MAT is more than 5 degrees Fahrenheit off of the MAT setpoint, for longer (in seconds) than the damper should take to stroke the opening

HANDLING PRECAUTIONS

For digital and electronic sensors, thermostats, and controllers, take reasonable precautions to prevent electrostatic discharges to the devices when installing, servicing, or operating them. Discharge accumulated static
electricity by touching one’s hand to a securely grounded object before working with each device.

IMPORTANT NOTICES
KMC Controls® and NetSensor® are all registered trademarks of KMC Controls. KMC Conquest™, KMC Connect™, KMC Converge™, and TotalControl™ are all trademarks of KMC Controls. All other products or name brands mentioned are trademarks of their respective companies or organizations.

The material in this document is for information purposes only. The contents and the product it describes are subject to change without notice.

KMC Controls, Inc. makes no representations or warranties with respect to this document. In no event shall KMC Controls, Inc. be liable for any damages, direct or incidental, arising out of or related to the use of this document.
The KMC Connect Lite™ app for NFC configuration is protected under United States Patent Number 10,006,654.

Pat. https://www.kmccontrols.com/patents/
SUPPORTAdditional resources for installation, configuration, application, operation, programming, upgrading and much more are available on the KMC Controls web site (www.kmccontrols.com). Viewing all available files requires logging in to the site.

KMC AFMS with STE-9xxx NetSensor Application Guide, AG220412B

Documents / Resources

KMC CONTROLS STE-9000 Net Sensor [pdf] User Guide
STE-9000, STE-9xxx, STE-9000 Net Sensor, STE-9000, Net Sensor, Sensor

References

User Manual

Product Information

Product Usage Instructions