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6 Mounting
Maschinenfabrik Reinhausen GmbH 2021
41
7817454/02 EN
TAPCON
®
230 Expert
Excessive line capacitance can prevent the relay contacts from interrupting
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 building,
we recommend using fiber-optic cables (in accordance with the
IEC 61850-90-4 recommendation).
Cable
Interface
Cable type
Conductor cross-sec-
tion
Max. length
Power supply (external)
X9
Unshielded
1.5 mm²
Voltage measurement
UI-X7
Shielded
Current measurement
UI-X7
Unshielded
2.5 mm²
Digital signal inputs
DI 16
Shielded
4 mm²
400 m (<25 Ω/km)
Digital signal outputs
DO 8
Shielded
1.5 mm²
Analog signal inputs
AI 4
Shielded
1 mm²
400 m (<25 Ω/km)
RS232, D-SUB 9-pole
COM X3
Shielded
0.25 mm²
25 m
RS485
COM-X6
Shielded
0.25 mm²
140 m
CAN bus
COM-X6
Shielded
0.75 mm²
2000 m (total CAN bus)
Ethernet RJ45
X2, X3
Min. CAT5, shielded
S/FTP
100 m
Ethernet FO
COM X4
Duplex LC multi-
mode, Om3, 1310 nm
2000 m
110 V DC output
X8
Unshielded
1.5 mm²
RJ45 patch cables
Min. CAT5, shielded
S/FTP
approx. 30 cm
Table 10: Recommendation for connection cables
*) Observe line capacitance, see note above.
6.4.2 Electromagnetic compatibility
The device has been developed in accordance with applicable EMC stan-
dards. The following points must be noted in order to maintain the EMC
standards.
6.4.2.1 Wiring requirement of installation site
Note the following when selecting the installation site:
▪ The system's overvoltage protection must be effective.
▪ The system's ground connection must comply with all technical regula-
tions.