MR TAPCON - Cable Recommendation; Information about Connecting Serial Interfaces RS232 and RS485

6 Mounting
Maschinenfabrik Reinhausen GmbH 202058 3587317/21 ENTAPCON
®
6.6.1 Cable recommendation
Please note the following Maschinenfabrik Reinhausen GmbH recommenda-
tion when wiring the device.
▪ Excessive line capacitance can prevent the relay contacts from interrupt-
ing 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 function of the relay contacts.
▪ If you want to route Ethernet connections from a control cabinet or build-
ing, we recommend using fiber-optic cables (in accordance with the
IEC61850-90-4 recommendation).
▪ Ensure that the copper cables used have a temperature resistance of
70°C.
Cable Assembly Type Cross section Material Max. length
Power supply (external) OT1205, G1 PULS
QS3.241
Unshielded 1.5mm² Copper -
Power supply (internal,
24V DC)
CPU, DIO, AIO,
MC, SW
Unshielded 1.5mm² Copper -
Voltage measurement UI Shielded 2.5mm² Copper -
Current measurement UI Unshielded 4mm² Copper -
Digital signal inputs DIO Shielded 1.5mm
2
Copper 400m (<25Ω/km)
Digital signal outputs* DIO Shielded 1.5mm
2
Copper -
Analog signal inputs AIO Shielded 1mm
2
Copper 400m (<25Ω/km)
Analog signal outputs AIO Shielded 1mm
2
Copper -
RS232, SUB-D CPU Shielded 0.25mm
2
- 25m
RS485; SUB-D CPU Shielded 0.25mm
2
- 140m
CAN bus CPU Shielded 0.75mm² - 2000m (entire
CAN bus)
Ethernet RJ45 CPU Min. CAT5,
shielded S/FTP
- - 100m
Ethernet FO MC, SW Duplex LC
Multimode, OM3,
1310nm
- 2000m
Table14: Recommendation for connection cables
*) Observe line capacitance, see note above.
6.6.2 Information about connecting serial interfaces RS232 and RS485
NOTICE
Damage to the device!
Using the wrong data cable may damage the device.
► Only use data cables which comply with the description below.