Technical data

33
3.3.3 Communication connection
CPS SCA23/28KTL-DO series inverter supports industry standard Modbus
RS485 communication.
1. Communication board description
Communication board
3
4
PAR
IND
S401
S402
ON
OFF
P205
P207
P203 P204
P208
Figure 3-29 Communication board
2. Connectors and communication cards
Item
Picture
Configuration description
① Dry
contact
communic
ation port
P205
N.O. N.C. COM
Please see the section after the table for detailed
information.
② USB
port P207
Firmware upgrade via USB disk