Hypertherm HyPrecision 50S, Operator'S Manual

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158 HyPrecision 50S/60S/75S Operator Manual 808690
7 – Troubleshooting
Tr
oub
leshooting
Alarm screens
The controller monitors activities while the pump is running. When the controller detects a problem with the
system, the operator interface shows the fault condition and the stack light blinks. When operating the intensifier
or primary motor is likely to damage the equipment, the intensifier and the primary motor turn off.
To stop an alarm, touch the screen showing the fault condition. Touch ACK on the screen, then touch ESC. The
stack light stops blinking.
The amber stack light blinks to signal a condition that requires attention. The red stack light blinks to show that a
fault has occurred.
If a fault message is still showing after the alarm condition is corrected, touch FAULT RESET on the screen. This
clears the fault and permits the pump to be restarted.

Not all pump functions are monitored by the controller.

The alarm log shows recent alarms and when they occurred. This can be helpful for troubleshooting.
The pump will not start
If the pump does not start or does not increase pressure, check these possible causes.
 The primary power is off.
 The primary breaker disconnect lever is off.
 The LOCAL/REMOTE key switch is set to LOCAL and the pump is being operated remotely.
 The pump is in pierce-pressure mode and the pierce-pressure control knob is turned anticlockwise too much.
 The cut-pressure control knob is turned anticlockwise too much.
 The pressure-enable valve has failed.
 A motor overload relay has tripped.
 A fuse in the electrical enclosure has blown.
 The pressure-relief valve on the primary hydraulic manifold has failed.