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Tucker GmbH,
Mail / Post:
Max-Eyth-Str.1, 35394 Gießen, Germany
Stud welding unit N1500i
As of: Aug 12.2021
Manual part number: BE 1221
way of the full scale and tune from there. You'll have to get past this error to tune
the voltage readings correctly, which will involve some power down/up cycles.
3. Broken connection from control board to the switch board in V-F circuit. Check
control board JP1 pins 1,9 for one pair, 2, 10 for the other.
4. If the input voltage measures to be correct and the switch boards V-F signal can
not be calibrated replace the switch board.
5. If the V-F signal is in a range of (2314Hz and 4529Hz or 250V- 470V) and when
first powered up, you still get this error, replace the control board.