ESAB Esp-1000 Plasmarc System Manual De Instrucciones página 313

section 5
5.4 troubleshooting Guide (con't.)
Problem
7. Arc extinguishes during a
cut or shuts down immedi-
ately after transfer.
8. Water muffler air supply
does not come on.
9. Water muffler under pump
does not come on.
Probable Cause
Loss of start signal.
Interlock not satisfied - loss
of gas pressure or gas flow.
Running across very large
kerf or off plate.
Speed too low.
Switch on air curtain control
box in the OFF position.
Air curtain control box is not
receiving signal from flow
control.
Starting relay on water muf-
fler is not receiving signal
from flow control.
Pump is not connected to
main power.
Pump is running backwards.
Check signal from cutting machine.
Check PLC inputs.
Check part program.
Increase speed as necessary.
Switch to AUTO.
Check for presence of 115 V ac signal at
Amphenol connector labeled AIR CURTAIN
on back of flow control. Check wiring.
Check for presence of 115 V ac signal at
Amphenol connector labeled AIR CURTAIN
on back of flow control. Check wiring.
Check wiring and fuses.
Check wiring.
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tRoUBLesHootinG
Remedy