10 – 18 HEIDENHAIN Technical Manual TNC 426, TNC 430
C330 Motor temp. too
high <axis>
n Measured motor
temperature is too high.
n No temperature sensor.
n Motor encoder cable is
defective.
n Entry in motor table is
incorrect.
n Incorrect or defective
temperature sensor was
installed.
n Let the motor cool down.
n Inform your service agency.
• Check the motor encoder
cable.
• Check the entry in the motor
table.
• Measure the temperature
sensor (2000 [Ohm] at
25 [°C]).
280 476-01
C340 Unknown counter
range <axis>
n Hardware defective.
n Incorrect software
version.
n Inform your service agency.
• Check software version.
• Exchange drive control board.
280 476-01
C350 Axis module
<axis> not ready
n No pulse release for the
axis module.
n Uz too large.
n 5-V power supply too
weak.
n Inverter is not ready for
operation.
n Motor control board
defective.
n PWM cable defective.
n Noise pulses.
n Inform your service agency.
• Check the control and
cabling of the pulse release.
• Check Uz.
• If the power supply is not
regenerative: Is the braking
resistor connected?
• If the power supply is
regenerative: Is energy
recovery activated?
• Check the grounding and
shielding of the cable.
• Exchange the power
module.
• For P controls: Exchange the
interface card.
• Exchange the motor drive
control board.
280 476-14
C370 Angular deviation
of motor encoder
<axis>
n Motor encoder
defective.
n Motor encoder cable
defective.
n Drive control board
defective.
n Inform your service agency.
• Check motor encoder and
leads.
• Exchange drive control
board.
280 476-01
C380 Motor <axis> not
controllable
n Motor cable switched
(e.g., X with Y).
n Motor encoder cable
switched.
n Phases incorrectly
connected to motor.
n Motor encoder cable
defective.
n
Incorrect motor table entry
(direction of rotation).
n Motor defective.
n Check motor cabling.
n Inform your service agency.
• Check motor and motor
encoder cable.
• Check motor table entry.
280 476-14
C390 Error 3-D touch
probe system <axis>
n Software error.
n Hardware error: control
board.
n Inform your service agency.
• Exchange the motor drive
control board.
• Check software version.
280 476-01
Error message Cause Corrective action As of
NC SW