Supervisory Controller Setup with M400 VFD Drive

Introduction

This document will guide you through setting up and commissioning the M400 VFD Drive in Supervisory Controllers (E3 and Site Supervisor). Complete all programming before you set up the M400 Drive.

Note that the M400 Drive requires Supervisory Controller firmware version 2.14F01 and above.

The keypad and display provide information about the operating status of the drive and trip codes. It offers the ability to change parameters, start and stop the drive, and perform a drive reset.

Keypad Overview

The M400 VFD Drive features a keypad and display for interaction. The following table details the keypad buttons and their functions:

Figure 1: Unidrive M400 - A visual representation of the M400 VFD drive unit, showing its physical appearance and keypad.

Figure 2: Unidrive M400 Keypad Details - A diagram illustrating the keypad layout with numbered buttons and their corresponding functions, including navigation and control keys.

STEP 1: Configuring M400 VFD Drive

Note: Do not connect the device communications to E2 controller.

1. Press the [right-arrow] or [left-arrow] key and navigate to Pr MM.000, then press [Enter]. Select Reset 60Hz defs, then press [Enter].
   Note: Pressing [Enter] allows you to enter and exit parameter edit mode.
2. Press [Escape] to return the drive to the No Action display.
3. Navigate to Pr 00.005 (Drive Config), then press [Enter]. Select Preset, then press [Enter].
4. Set Pr 00.010 (User Security Status), then press [Enter]. Select All Menus, then press [Enter].
5. Set Pr 06.004 (Start/Stop Logic), then press [Enter]. Select 6, then press [Enter].
6. Set Pr 11.023 (Serial Address), then press [Enter]. Select 2, then press [Enter].
7. Set Pr 11.024 (Serial Mode), then press [Enter]. Select 8 1 NP, then press [Enter].
8. Set Pr 11.020 (Serial Reset), then press [Enter]. Select On to reset communications.
   Note: The device will flash to On and return to Off. Press [Enter].
9. Set Pr 12.000 (Parameter mm.000), then press [Enter]. Select Save Parameters, then press [Enter].
10. Press [Escape] to return the drive to the No Action display.

Note: The drive is now ready to communicate with the Supervisory controller and is ready for a test/run.

The following table lists compatible models and their maximum number of instances:

STEP 2: Setting the Baud Rate in the Supervisory Controller

Navigate through the Supervisory Controller interface: ⚙️ > Configure System Properties > General System Properties.

Figure 3: General System Properties Tree Hierarchy - A visual guide showing the navigation path within the Supervisory Controller software to access system properties.

In the "General System Properties" screen, configure the COM ports:

Figure 4: Set the Baud Rate, Data Size, Parity, and Stop Bits - A screenshot of the COM Ports configuration screen. It shows settings for COM Port 1 and COM Port 2, including Baud rate, Data Size, Parity, and Stop Bits. Specifically, it indicates setting the Baud Rate for COM Port 2 to 19200.

• Set the Com Port baud to 19.2 (19200).

STEP 3: Wiring the M400 VFD Device to Emerson Controllers

Wire the device as shown in the following diagrams:

Figure 5: Wire the M400 VFD Device to Site Supervisor - A wiring diagram illustrating the physical connections between the Site Supervisor COM port and the M400 VFD DRIVE. It details RS485 communication wiring, including polarity (+/-) and shield connections, specifying "19.2 Baud Rate Only". It notes that COM wiring is the REVERSE polarity of Site Supervisor.

• The '+' on the Com port goes to the '-' on the VFD.
• The '-' on the Com port goes to the '+' on the VFD.
• Do NOT connect the shield to any terminal on the controller or VFD. Connect the shield directly to the Earth Chassis at the controller; clip and insulate the shield at the VFD end of the cable.
• If the VFD is the last device in the Com segment, terminate with 150 ohms between terminals 2 and 3.

Figure 6: Wire the M400 VFD Device to E2/E3 - A wiring diagram similar to Figure 5, but for connecting the M400 VFD DRIVE to an E2/E3 controller. It specifies "19.2 Baud Rate Only" and notes that COM wiring is the SAME polarity as E2 and E3.

• The '+' on the Com port goes to '+' on the VFD.
• The '-' on the Com port goes to '-' on the VFD.
• Do NOT connect the shield to any terminal on the controller or VFD. Connect the shield directly to the Earth Chassis at the controller; clip and insulate the shield at the VFD end of the cable.
• If the VFD is the last device at the end of the Com segment, terminate with 150 ohms between terminals 2 and 3.

Wiring Diagrams

Detailed schematic diagrams illustrate the integration of the M400 VFD Drive with Supervisory Controllers.

Figure 7: Site Supervisor to M400 (MODBUS) - A comprehensive schematic showing the Site Supervisor unit, its power connections, RS485 MODBUS network connections (reverse polarity), and connections to the M400 VFD Drive, including power input and motor output terminals. It also depicts associated components like fuses, contactors, and control interlocks.

Figure 8: Site Supervisor to M400 (ANALOG 0-10V) - A schematic diagram illustrating the connection between the Site Supervisor and the M400 VFD Drive using an Analog 0-10V signal for control. It shows power, communication, and motor connections, similar to Figure 7 but for analog control.

Figure 9: E3 to M400 (MODBUS) - A schematic diagram detailing the connection between an E3 controller and the M400 VFD Drive via an RS485 MODBUS network (same polarity). It includes power supply, communication lines, and motor output wiring.

Figure 10: E3 to M400 (ANALOG 0-10V) - A schematic diagram showing the connection between an E3 controller and the M400 VFD Drive using an Analog 0-10V signal. It illustrates power, communication, and motor connections for analog control.

STEP 4: Adding the Device to the Supervisory Controller

Follow these steps to add the M400 VFD Drive to the Supervisory Controller's inventory:

1. From the home page, click the control inventory icon ⚙️ to go to the Control Inventory page.
2. From the HVAC drop-down list, select M400 from the list.

Figure 11: Adding M400 and Addressing - A screenshot of the Control Inventory interface. It shows a list of devices, with M400 selected from the HVAC category. It illustrates how to assign a Modbus address and port ID to the M400 device.

STEP 5: Commissioning the Device to the Supervisory Controller

From the Control Inventory screen, select the Modbus address for the M400 and click the checkmark ✔️ to save and start commissioning. (Best practices tip: set the Modbus number to match the connected Com Port and the Address to match the M400 addressing in STEP 1).

Drive Setup:

1. Click the M400 to go to the M400 setup page.
2. Go to the General tab.
3. Set CfgSyncAction to Write to Device.
4. On the Inputs tab, set DIRECTION to Forward or Reverse. This verifies that the drive should run correctly.
5. Set RUN to OFF. This verifies that the drive should inhibit.

Device Configuration Screens

The following sections describe key configuration screens and parameters within the Supervisory Controller interface.

Figure 12: Details Screen - This screen displays real-time operational data for the M400 VFD, including OUTPUT FREQ (Hz), OUTPUT RPM, and PERCENT LOAD (%).

Figure 13: Inputs Tab - This screen shows the configuration of input parameters for the M400 VFD. Key settings include RUN status, DIRECTION (Forward/Reverse), RESET PTR, REF FREQ, CTRL RESET, DRIVE HARDWARE ENABLE, and DAILY TIME TO RESET FREQ.

Figure 14: Setpoints Parameters - This screen allows setting specific operational parameters for the motor. Users can configure values for MOTOR VOLT, MOTOR RPM, and MOTOR FLA based on the motor's nameplate data.

Figure 15: M400 VFD Device Status - This screen provides an overview of the M400 VFD's current status, displaying output frequency, RPM, and load percentage. It also includes graphical representations of these parameters over time.

Figure 16: General Tab Screen - This screen displays general configuration settings for the M400 device, including App Name, Long Name, Update Rate, Category (e.g., HVAC), CfgSyn Action (e.g., Write to Device), and COMM STATUS.

Figure 17: Application Commands - NVM_SAVE - This shows the "Commands" dropdown menu, where users can select actions. "NVM_SAVE" is highlighted, indicating the command to save the current configuration to non-volatile memory.

Figure 18: Application Commands - DRIVE-RESET - This shows the same "Commands" dropdown menu, with "DRIVE-RESET" highlighted, indicating the command to reset the drive with the current configuration.

STEP 6: Verification of Settings

After commissioning the new device, verify that the following values are set in the drive:

• 0.009 (MOTOR_PWR_FACTOR) = 0.85 or the value that you set
• 6.004 (Start/Stop Logic) = 6
• 8.023 (Digital input 3) = 0.000

The following parameters must be set up in the Inputs tab to run the drive:

• RUN (ON)
• DIRECTION (FORWARD, REVERSE)
• REF FREQ (the speed setting of the motor)

Figure 19: Setting Up Inputs Tab - This screen, similar to Figure 13, shows the configuration of input parameters. It confirms settings for RUN, DIRECTION, REF FREQ, and other input-related controls.

Use Table 1 - Menu 0 Guide to verify values set in the M400 drive.

Note: Table 1 - Menu 0 Guide provides diagnostic information about the system. It allows you to double-check to ensure that the E2 controller sent the correct parameters.