Omron SYSDRIVE 3G3RV Series User Manual page 46

Communications-circuit Terminals (Same for 200-V and 400-V Class)
The functions for the communications-circuit terminals by symbol are shown in Table 2.3.
Signal
Type
Symbol
RS- R+
422A/ R-
485 S+
Com- S-
muni-
IG
cations
-10
2
Table 2.3 Communications-circuit Terminal Functions
Signal Name
RS-422A/485 receive data
RS-422A/485 send data
Shield wire for communica-
tions
Terminal Function
For 2-wire RS-485, short R+ and
S+, as well as R- and S-.
-
Signal Level
Differential input,
photocoupler isolation
Differential input,
photocoupler isolation
-