3. WIRING
IMR02L04-E3
3-6
Isolations of the instrument
For isolated device Input/Output blocks, refer to the following:
a
OUT1, OUT2 and OUT3 are isolated when relay contact or triac is specified for OUT1 and OUT2.
b
Not isolated between DO1 and DO2 or DO3 and DO4
c
Digital outputs from DO5 to DO12 are not isolated.
Power supply
Commu-
nication 1
Commu-
nication 2
Digital input
1 to 11
(DI1 to DI11)
Output 1
a
(OUT1)
Output 2
a
(OUT2)
Output 3
a
(OUT3)
Isolated
Digital
output 3
(DO3)
b
Digital
output 4
(DO4)
b
Isolated
Digital
output
5 to12
(DO5 to
DO12)
c
Isolated Isolated
Loader
commu-
nication
Current transformer
input (CT1, CT2)
Feedback
resistance input
(
One of the above)
Measured input
MCU
Non-isolated
Non-isolated
Isolated Isolated Isolated
Isolated
Digital
output 1
(DO1)
b
Digital
output 2
(DO2)
b
Isolated
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