PLMNL0199 REV. J Effective Date: 08/05/21
54
FiberCUT
®
ST Operation Manual
8 Troubleshooting
Most of the faults can be cleared by moving the head away from any objects, turning off all of the I/O
’s,
followed by resetting the head by activating the RST input for ~0.1sec.
In some cases, just activating RST for ~0.1 sec will also clear the fault.
SYMPTOM
CAUSE
REMEDY
Crash interlock is not
satisfied (INT1 and INT2)
The head has reached the
extended or retracted limit while
sensing.
Turn off HS1, HS2, HS3, AIE and
HOLD inputs to place the head in the
retracted position mode.
The head has had a fault or crash.
Reset the head.
Power is not turned on to the
controller.
Check power and all connections to
the controller and head.
Fault:
1: Head Not Extended
Something is preventing the head
from fully extending.
When the controller is first powered up,
the head must be able to fully extend.
Jog the head away from the object and
then turn power on to the controller.
Fault:
2: Hit Retract Limit
The head has collided with an
object causing the head to reach
the retract limit.
Jog the head away from the object and
reset.
Fault:
3: Calibration Fault
The controller has not received the
proper response from the height
sensor.
The tip may be shorted or the sense
cable may be broken. Replace the
nozzle or sense cable.
Fault:
4: Extending Watchdog
The motor is being told to extend
continuously.
An object is touching the head
preventing it from extending. Move the
head away from the object.
The drive system has failed. Replace
the motor or drive mechanisms.
Fault:
5: Retract Watchdog
The motor is being told to retract
continuously.
An object is touching the head
preventing it from retracting. Move the
head away from the object.
The drive system has failed. Replace
the motor or drive mechanisms.
Fault:
6: Temperature Watchdog
The controller is not getting the
proper response from the head
electronics.
Replace the head-control cable or
head electronics module.