Electrical installation
93
Installation of optional modules and PC
Optional modules (such as fieldbus adapters, I/O extension modules and pulse
encoder interfaces) are inserted into the optional module slot of the RMIO boards
(built in the RDCU drive control units) and secured with two screws. The slots on the
RMIO boards are described on page 35. See the appropriate optional module
manual for information on the cable connections.
Cabling of I/O and fieldbus modules
Cabling of pulse encoder interface module
Fibre optic links
DDCS fibre 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 fibre 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
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.
65432165432187
0
8
4
C
2
6
A
E
1
3
5
7
9
B
D
F
CHAS SI S
GND
NODE I D
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
+15 V
V IN
+24 V
Keep unshielded portion as
short as possible
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