WilTec SKD-3, Operation Manual, Page: 6 / 7

© by WilTec Wildanger Technik GmbH Item 51245, 51248 Page 6
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Wiring diagram for connecting various pump motors to the automatic machines
Wiring diagram for single-phase
220 V pumps up to 1.1 kW
Wiring diagram for single-phase
220 V pumps over 1.1 kW; con-
trol via 2-phase relay (contactor),
relay selection according to
pump performance Wiring diagram for three-phase
400 V pumps, also over 1.1 kW;
control via 3-phase relay (con-
tactor), selection of relay accord-
ing to pump capacity
Possible errors and their elimination
Error Error at the machine Error outside the machine
Pump does not start. Board is damaged.
•
Missing voltage
•
Pump defective
•
Interchanged cables
Pump does not stop.
•
Board is damaged.
•
Flow detector is stuck in the upper
position.
•
Reset button is blocked.
•
Pump does not have sufficient
pressure.
Leak with more than 0.6
ℓ ⁄
min
loss.
Pump operates intermit-
tently.
•
Board is damaged.
•
Pump does not have sufficient
pressure.
There is a leak with less than
0.6
ℓ ⁄
min
loss.