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CHAPTER 2: INSTALLATION
RMIO module installation
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
The optional remote module (RMIO) is designed to be mounted near the motor. This
eliminates the need for multiple RTD cables to run back from the motor, which may be in a
remote location, to the switchgear. Although the RMIO is internally shielded to minimize
noise pickup and interference, it should be mounted away from high current conductors or
sources of strong magnetic fields.
Figure 13: RMIO unit showing 2 IO_G modules
Figure 14: RMIO terminal identification with 4 IO_G modules
PSU
L
G
Common
RCU
IO_G
14
13
12
11
10
Tx
9
8
Rx
7
6
5
+
B1
4
-
B2
3
B3
2
1
ELECTRICAL INSTALLATION
IO_G
IO_G
14
14
13
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
IO_G
14
13
12
11
10
9
8
7
6
5
4
3
2
1
896750.cdr
2–11
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