Dr. Livingstone, I Presume WELDWISE 2400 - Manual (Page 127)

PROBLEM POSSIBLE CAUSE OR
SYMPTOM
POSSIBLE FIX
External Bin Select is working
intermittently. Refer to Section 7, Trouble With Bin Select or Accept /Reject.
Internal Bin Select is working
intermittently. Refer to Section 7, Trouble With Bin Select or Accept /Reject.
SOME WELDS ARE
REJECTED: The weld
summary screen indicates
that some welds are
Rejected. Almost every
parameter is out of tolerance
except for Half Cycle count
Weld Timer is malfunctioning or the logic
controlling the Weld Timer is incorrect. Check weld timer operation (firing boards and SCRs). Call your
resident logic programmer and have the logic inspected.
Weld Timer is malfunctioning or the logic
controlling the Weld Timer is incorrect. Check Weld Timer operation (Firings boards and SCRs). Call
your resident logic programmer and have him/her inspect the
logic.
Toroid failure or loose buckle. Inspect the Toroid for physical damage or abrasion. Replace
and/or relocate Toroid if necessary. Inspect for loose buckle.
AD Threshold settings require adjustment. Refer to the General Setup Section in Chapter 6, WMS Reference
Guide for rule of thumb settings and overview on these settings.
Try increasing the settings. Call Livingston Service for support.
SOME WELDS ARE
REJECTED: The weld
summary screen indicates
that some welds are
rejecting due to incorrect
Half Cycle Count.
The transformer secondary is not properly
grounded. Check the transformer for grounding issues. The transformer
secondary should be grounded either directly or through a
grounding inductor. A 1megaOhm resistor in parallel to a
.01microFarad/600V capacitor may also be used.
10-11
0455
-INS-4
00
Re
v.
C