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NO CURRENT !!
ALARM MESSAGE
NO VOLTAGE !!
CURRENT ERROR !!
LOWER THAN LIMIT
IP-215A/IP-217A FINE SPOT WELDING POWER SUPPLIES
993-603 REV A: October, 1996
APPENDIX E: ALARM MESSAGE LIST
No Current. During welding, weld
cur-rent is less than 25 A for the IP-
215A or 50 A for the IP-217A after 5
msec from the start of the weld cycle.
Welding has stopped and the system
cannot be re-started.
DESCRIPTION
No Voltage. In the Constant Voltage or
Constant Power control mode, sensed
voltage is less than 0.05 V after 5 msec
from the start of the weld cycle.
Current Lower Limit Exceeded. The
measured current value has gone below
the current monitor lower limit setting.
MR = 0:
END signal is output
at I/O connector
(refer to Appendix
B). Next weld can
begin.
MR = 1:
END signal is not
output at I/O
connector. Next weld
cannot begin.
Error Reset: Close the RESET input
signal at the I/O connector (refer to Ap-
pendix B).
Remedies: Check the welding trans-
former secondary circuit and its
internal toroidal coil for damaged wires
and loose connections.
CORRECTIVE ACTIONS
Error Reset: Close the RESET input
signal at the I/O connector (refer to Ap-
pendix B).
Remedies: Check for disconnected
volt-age sensing leads or an open
voltage sensing cable.
Error Reset:
MR = 0:
Next START signal
auto-matically clears
error con-dition.
MR = 1:
Close RESET input
signal at I/O
connector.
Remedies: Check for problems in the
welding cables, work pieces, the weld
head, and the AC input voltage source.
E-3
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