EasyDrive CV3100 Series Instruction Manual page 39

CV3100 series and MINI series high performance general purpose inverter instruction manual
PLC
Master
+485- SG
Diagram 3-14 Wiring at communicating PLC with multi inverters
(All the inverters and motors shall be earthed well.)
CV3100
control plate
of master
+485- PE
Diagram 3-15 Wiring at communicating among multi inverters
In case that aforementioned wiring can't provide the normal communication, the
following measures may be tried.
(1) Supply the power for PLC (or upper machine) individually or isolate its power
supply.
(2) Magnetic ring is used on the communicating wire; reduce the carrier frequency of
inverter properly.
CV3100
Control
plate
-
PE
+485
CV3100
Control
plate
-
PE
+485
+485
D
(All the inverter sand motors shall be earthed).
CV3100 CV3100
Control Control
plate plate
-
+485
+485
PE
CV3100 CV3100
Control Control
plate plate
-
-
PE
+485 PE
3-17
CV3100
Control
plate
-
+485- PE
PE
CV3100
Control
plate
+485- PE