EWM Drive XQ AC Operating Instructions Manual page 40

Rectifying faults
Error messages (power source)
Category
a) b)
9
10
11
22
32
33
38
48
49
51
52
53
54
55
56
57
40
Error Possible cause
c)
[2]
error
Pre-pressure too low
Sec. overvolta- Overvoltage at output: Inverter
ge error
Earth fault (PE Connection between welding
error) wire and machine casing
Quick shut- Removing the logical signal
down "robot ready" during the pro-
cess
Coolant excess Coolant is overheating (>=70°C
[3]
temperature / >=158°F)
coolant return line
Fan blocked, dirty or defective
Air inlet or outlet blocked
[3]
Error I>0
[3]
Error UIST Short circuit in welding circuit
before welding
[3]
Error IIST Short circuit in welding circuit
before welding
Ignition error No ignition occurred during a
process start with automated
machines
Arc interruption An arc interruption occurred
during welding with an automa-
ted system
Emergency The emergency stop circuit of
stop
the power source has been
activated.
No wire feeder After switching on the automa-
ted system, no wire feeder was
detected
No wire feeder Wire feeder 2 not detected
2
[2]
VRD error Open circuit voltage reduction
error
WF excess Overcurrent detection on wire
current feeder
Mains phase One phase of the mains voltage
failure has failed
Slave tacho Wire feeder fault (slave drive)
error
Remedy
Remove kinks in the hose
package; nominal value:
4-6 bar primary pressure
Inform Service
Remove electrical connection
Eliminate errors on the higher-
level control
Allow the power source to
[1]
measured in the cool down (mains switch to
"1")
Check fan, clean or replace
Check air inlet and outlet
Inform Service
Eliminate short circuit in
welding circuit; remove exter-
nal sensor voltage
Eliminate short circuit in
welding circuit
Check the wire feeding, check
the connections of the load
cables in the welding circuit,
clean corroded surfaces on
the workpiece before welding
if applicable
Check wire feeding; adjust
welding speed.
Disable the activation of the
emergency stop circuit (relea-
se protective circuit)
Check or connect control
cables of wire feeders; check
the identification number of
the automated wire feeder (for
1DV: number 1, for 2DV: each
a wire feeder with number 1
and a wire feeder with number
2)
Check or connect the control
lines of the wire feeders
if necessary, disconnect ex-
ternal machine from the
welding circuit; inform Service
Do not place the liner in tight
radii; check wire core for
smooth movement
Check mains connection,
mains plug and mains fuses
Check connectors, cables,
connections
099-005613-EW501
23.04.2019