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Circuit board PE-C4 Twin
Electrical connections
5.2
Circuit board PE-C4 Twin
Use only flexible cables, e.g. for: pumps, mixers and temperature sensors. Shielded cables must be used for
BUS lines (e.g.: CAN bus, RS485 bus).
Contacts marked with an [X] (example
) may not be connected.
These terminals can be used (depending on the configuration):
Terminal
Function
Minimum
cross-sec-
tion
Default assignment
S20
230 V supply
from circuit board [SH-C]: terminal [S82]
S25
230 V input
from circuit board [SH-C]: terminal [S82]
S28
230 V input
3 x 1 mm²
Emergency stop switch
S29
230 V output
3 x 1 mm²
Conveyor
S37
Potential-free output
(special function)
Malfunction message / changeover valve so-
lar heating system
S520
24 V input
3x 0.75 mm²
Switching unit: reference-point switch (termi-
nal [S10])
S521
24 V input
3x 0.75 mm²
switching unit: position switch (terminal
[S11])
S531
CAN Bus
from circuit board [SH-C]: terminal [S581B]
S532
CAN Bus
2 x 2 x 0.6 mm
