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Ground current (earth current watchdog option only)
Indicators shown on the right light up, VRD indicator flashes red
Cause:
Current flowing via device earth
Remedy:
Check ground earth connection to workpiece, switch ma-
chine off and on again; if error keeps recurring, have machine
serviced
Short circuit after switching on the machine
Indicators shown on the right light up, VRD indicator flashes red
Cause:
Short circuit between electrode holder and earthing clamp
Remedy:
Rectify short circuit, switch machine off and on again; if error
keeps recurring, have machine serviced
Current limit
Indicators shown on the right light up, VRD indicator flashes red
Cause:
Internal error
Remedy:
Switch machine off and on again; if fault keeps recurring,
have device serviced
ILZ
Indicators shown on the right light up, VRD indicator flashes red
Cause:
Internal error
Remedy:
Switch machine off and on again; if fault keeps recurring,
have device serviced
Asymmetry (during operation)
Indicators shown on the right light up, VRD indicator flashes red
Cause:
Internal error
Remedy:
Switch machine off and on again; if fault keeps recurring,
have device serviced
Asymmetry (when switching on)
Indicators shown on the right light up, VRD indicator flashes red
Cause:
Internal error
Remedy:
Switch machine off and on again; if fault keeps recurring,
have device serviced
Primary current
Indicators shown on the right light up, VRD indicator flashes red
Cause:
Internal error
Remedy:
Switch machine off and on again; if fault keeps recurring,
have device serviced
