Chapter 5 Solutions for Errors 5-
11
Front gantry homing
cancelled (Precision Z-
axis height)
Front gantry homing cannot be carried
out as the Precision Z axis is too low.
Wait for 10 sec after power off/on and
do homing again.
Rear gantry homing
cancelled (Module Z-
axis height)
Rear gantry homing cannot be carried
out as the Module Z axis is too low.
Wait for 10 sec after power off/on and
do homing again.
Rear gantry homing
cancelled (Precision Z-
axis height)
Rear gantry homing cannot be carried
out as the Precision Z axis is too low.
Wait for 10 sec after power off/on and
do homing again.
Homing failure
(Sequential homing
process)
Check the axial motion after servo off
and try again.
Check the Home Sensor.
If the error is not resolved after retrying,
contact a C/S engineer.
Homing failure
(Servo power off or amp
error)
Check the AMP input voltage.
Homing failure
(hardware Limit is
detected for
one or more Z axes.)
Check the limit sensor of the Head Z –
axis.
Homing failure
(Both + and -
hardware Limits are
detected at the same
time.)
Homing failure
(hardware Limit was
not escaped within 5
sec.)
Homing failure
(Motion Done Check
Error.)
Initialize the Motion Control Board.
Turn off the RUN software and
turn on after
10 sec.
Homing failure
(hardware Limit is
not detected within
timeout.)
Check the sensor.
Check the sensor cable or
connector.
Homing failure
(Z-Phase is not found
for 10 sec.)
Z-phase of the motor encoder is
not found. Check defects of the
encoder or encoder cable.
Homing failure
(Unidentified)
Initialize the Motion Control Board.
Turn off the RUN software and
turn on after
10 sec.