Amada S-2200CA, Operation Manual

Page: 121 / 210

CHAPTER 5: MAINTENANCE
IS-2200CA/4500CA INVERTER POWER SUPPLY
990-412 5-3
FAULT
CODE
CONTENTS CAUSE MEASURES
E-12 STOP
External STOP input circuit is open.
Rectify cause of the STOP, and then close the
STOP circuit.
Power supply for external input is not
connected. Check the external input signal for proper
connection.
E-13 OVER CURRENT Primary current above the limit is detected.
Check for welding transformer and welding
electrode problems.
Check that the toroidal coil or the voltage
detection cable is connected in the secondary
control.
E-14
SHORT WITH
GROUND
The output cable between the welding
transformer and the power supply is
grounded.
Check the output cable.
E-15
LACK OF
COOLING
WATER
Cooling water flow is low.
Increase cooling water flow rate to meet
specifications.
Power supply for external input is not
connected. Check external input signal for proper
connection.
E-16 START ERROR
Schedule signal has not been entered when
the external start signal is present.
Input the schedule before the start signal.
E-17
AC 50/60
FREQUENCY
FAILURE Frequency of incoming power supply is not
stable, and equipment cannot determine
whether it is at 50 Hz or 60 Hz.
Check power source.
E-18
OUT LIMIT OF
VOLTAGE
ERROR Secondary voltage is out of the VOLT
setting range on the MONITOR SET
screen.
Check for stained welding electrodes and low
electrode force.
E-19
OUT LIMIT OF
POWER ERROR
Welding power is out of the POWER
setting range on the MONITOR SET
screen.
E-20
INTERRUPT
ERROR The current shutoff signal is present before
the start signal.
Check interrupt input signal.
E-21
NO VOLTAGE
No detection of the voltage across welding
electrodes. Make sure that the cable detecting the voltage
across welding electrodes is connected.
NO VOLTAGE LEVEL is too high. Set a lower NO VOLTAGE LEVEL .
E-22
OVER CURRENT
(DC24V) Built-in 24 VDC power supply on the rear
panel is shorted and overloaded. Turn off the power and check the I/O
connection on the rear panel.
E-23
SHORT CIRCUIT The output cable is shorted. Check the output cable.
E-24
PRECHECK
ERROR
Current is outside of the upper / lower limit
setting on the
PRECHECK screen (when
the PRECHECK Current Supply is used).
Check for contamination on the weld pickup
electrodes, electrodes and workpieces.
Check range set on the PRECHECK Screen.