MR ETOS IM - Cable Recommendation

5 Mounting
Maschinenfabrik Reinhausen GmbH 201958 5163667/06 ENETOS
®
IM
5.6.1 Cable recommendation
Please note the following Maschinenfabrik Reinhausen recommendation
when wiring the device.
Excessive line capacitance can prevent the relay contacts from breaking the
contact current. In control circuits operated with alternating current, take into
account the effect of the line capacitance of long control cables on the func-
tion of the relay contacts.
If you want to route Ethernet connections from a control cabinet or building,
we recommend the use of fiber-optic cables (in accordance with the IEC
61850-90-4 recommendation).
Cable Assembly Cable type Conductor cross-sec-
tion
Max. length
Power supply (external) OT1205, G1
PULS
QS3.241
Unshielded 1.5 mm² -
Power supply (internal, 24
VDC)
CPU, DIO,
AIO, MC, SW
Unshielded 1.5mm² -
Voltage measurement UI 1, UI 1-1, UI
3
Shielded 2.5 mm² -
Current measurement UI 1, UI 1-1, UI
3
Unshielded 4 mm² -
Signal inputs DIO 28-15,
DIO 42-20
Shielded 1.5 mm
2
400 m (<25 Ω/km)
Signal outputs* DIO 28-15,
DIO 42-20
Shielded 1.5 mm
2
-
Signal inputs AIO 2, AIO 4,
AIO 8
Shielded 1 mm
2
400 m (<25 Ω/km)
Signal outputs AIO 2, AIO 4,
AIO 8
Shielded 1 mm
2
-
RS232, SUB-D CPU I, CPU II Shielded 0.25 mm
2
25 m
RS485; SUB-D CPU I, CPU II Shielded 0.25 mm
2
140 m
CAN bus CPU I Shielded 0.75 mm² 2,000 m (total CAN bus)
Ethernet RJ45 CPU I Min. CAT5, shielded
S/FTP
- 100 m
Ethernet FO MC2-2, SW3-3 Duplex LC
Multimode, OM3,
1310 nm
- 2000 m
Table10: Recommendation for connection cables
*) Observe line capacitance, see note above.