Electrical installation
107
Cabling of I/O and fieldbus modules
Cabling of pulse encoder interface module
Note 1: If the encoder is of unisolated type, ground the encoder cable at the drive
end only. If the encoder is galvanically isolated from the motor shaft and the stator
frame, ground the encoder cable shield at the drive and the encoder end.
Note 2: Twist the pair cable wires.
Fiber optic links
DDCS fiber optic links are provided by RDCO modules (optionally installed on the
RDCU control units) for PC tools, master/follower link, NDIO, NTAC, NAIO, AIMA I/O
module adapter and fieldbus adapter modules of type Nxxx. See the RDCO User’s
Manual (3AFE 64492209 [English]) for the connections. Observe colour coding
when installing fiber optic cables. Blue connectors go to blue terminals, and grey
connectors to grey terminals.
When installing multiple modules on the same channel, connect them in a ring.
Shield
Module
2
3
4
1
Keep unshielded portion as
short as possible
To nearest PE terminal
2
3
4
1
65432165432187
0
8
4
C
2
6
A
E
1
3
5
7
9
B
D
F
CHASSIS
GND
NODE ID
SHLD
RTAC-01
PULSE ENCODER INTERFACE
X2
X1
WD/
INIT
CHB
CHA
SHLD
CHA+
CHA-
CHB+
CHB-
CHZ+
CHZ-
0 V
0 V
V OUT
+15V
V I N
+24V
Keep unshielded portion as
short as possible
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