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Parameter

Analogue

Slide valve

Tilt valve

1

19

19

2

50

50

3

100

100

4

100

100

5

100

100

6

130

130

7

130

130

8

0

0

9

0

10

0

0

11

0

0

12

0

0

13

0

0

14

0

0

15

0

0

16

1

0

17

10

10

18

3

3

19

10

10

20

1

1

21

475

90

22

90

475

23

5

5

24

outer limit

outer limit

25

1

1

26

101

101

Parameter settings

Troubleshooting

If an error occurs, stop the actuator and the 
error status will be indicated by a red LED on 
the PCB. The LED is visible when the control 
unit cover is removed.

WCU-basic/BUS

In the event of an error, the red LED on the PCB 
will flash. The flashes signify the following:

LED flashes on errors

LED flash Significance

Remedy

1 flash

Interrupted on 
overcurrent

Find out whether anything 
is blocking the actuator, 
and rectify. Check whether 
the switch limit matches the 
actuator in question.

2 flashes

Power supply 
error

Signal from the “power 
supply fail” input, terminal 
15. If the battery is 
connected, the control unit 
will continue running.

3 flashes

Battery error

Battery error input terminal 
16, the control unit stops, 
depending on the parameter.

4 flashes

Time-out

The actuator has run longer 
than the time set. See 
whether anything is wrong 
with the actuator, or switch 
off the time.

5 flashes

Overheating of 
the control unit

Switch off or stop the control 
unit until it has cooled down, 
as the actuator intermittence 
may be too high.

6 flashes

Overvoltage

The intake voltage is too 
high; examine whether the 
voltage level is below 35 V.

7 flashes

Error input

Lacking control voltage or 
lacking bus communication.

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