Rockwell Automation FANM FanMaster Energy Saving Package - Manual (Page 31)

FanMaster Installation 2-13
Allen-Bradley® FanMaster™ Energy Saving Package Installation Manual - Publication FANM-IN001B-EN-P – December, 2009 PN-65329
PowerFlex 70EC, 700VC or 753 Drive
Important: When installing a PowerFlex 753 drive, the 20-COMM-H
communication adapter requires the 20-750-20COMM
carrier option module.
Important: Leave the 20-COMM-H adapter rotary node address
switches set to “00” and set the network protocol switch
to “RTU”.
Important: The communication cable maximum length should not
exceed 500 m (1,640 ft).
a. For PowerFlex 753 drives only, install the 20-COMM-H, RS-485
HVAC adapter in the drive according to the installation instructions
in the 20-750-20COMM Option Card Installation Instructions,
publication 750COM-IN001.
b. Connect the 20-COMM-H adapter, via the RS-485 cable, to TB3 in
the FanMaster enclosure. Refer to the interconnect diagrams for the
PowerFlex 70EC (
Figure B.9 on page B-10 ), PowerFlex 700VC
( Figure B.10 on page B-11 ) or PowerFlex 753 ( Figure B.11 on
page B-12 ).
c. Continue with step 10 on page 2-14 .
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RTU
N2
P1