Important Note:
The 4 screws for fastening the weighing platform to the frame must not be tightened nor
loosened. Make sure that these screws cannot be adjusted or manipulated.
Annual Maintenance
We recommend having the equipment inspected annually by our customer service center.
Electrical Maintenance
Always perform the following inspections first:
1. Power supply:
– Is the correct supply voltage connected?
– Is the power cable damaged?
– Is there a voltage of 24 V between terminals 22 and 24 in the terminal strip?
2. Main power switch and on/off switch:
– Are the switches in the correct position?
3. Cable connections:
– Have the terminal strip connections of a cable come loose?
– Has a power supply cable come loose?
– Is the motor plug secured correctly with the right clamp?
– Is the data cable connected correctly?
– Are any of the wires or cables damaged?
4. Fuses:
– Is the fuse on the main power supply feeder ok?
– Is the fuse for the terminal strip ok?
For models WM 6 and WM 35: 4 A
For models WM 60 and WM 120: 10 A
5. Switch on the system; main switch on “1”
– Is the LED on the photo sensor lit?
– Is the checkweigher display on?
– Does the display on the frequency converter (FC) switch show 0.00 V?
– Did the checkweigher complete the automatic self-test?
(the motor cannot be started until the checkweigher has concluded its self-test)
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