Document Part # 026-4176 Rev 1 Page 4 of 16
©2022 Emerson Digital Cold Chain, Inc. This document may be photocopied for personal use.
Visit our website at www.climate.emerson.com for the latest technical documentation and updates.
STEP 3: Wiring the M400 VFD Device to Emerson Controllers
Wire the device as shown below:
COM wiring is the REVERSE
polarity of Site Supervisor.
• + On the Com port goes to - on the VFD.
•
- On the Com port goes to the + on the VFD.
• Do NOT connect shield to any terminal on the controller or VFD. Connect shield directly to Earth Chassis at the
controller; clip and insulate shield at VFD end of cable.
• If VFD is the last device at the end of Com segment, terminate with 150 ohms between terminals 2 and 3.
Figure 5 - Wire the M400 VFD Device to Site Supervisor
To Next Page
Loading...
