Yaskawa GPD 506/P5 Section One - Manual (Page 10)

PP.P5G5.01.Troubleshoot
Page 10
Rev. 06/11/2003
Main Circuit Test Procedure
This test procedure must be performed before making a repair.
TEST PROCEDURE CHECKLIST
‰
1. Check DC bus voltage.
‰
2. Check input diodes.
‰
3. Check soft charge resistor(s).
‰
4. Check soft charge contactor.
‰
5. Check DC bus fuse.
‰
6. Check the braking circuit. (If internal)
‰
7. Check output transistors.
‰
8. Check snubber circuit.
‰
9. Check the control power fuse.
‰
10. Check the cooling fan(s).
‰
11. Check the cooling fan(s) fuse.
Check box when completed