HEIDENHAIN iTNC 530 Service Manual page 34

Error message Possible cause of error
Additional information and descriptions in
the manual
8B20 Error <axis> Field orientation impossible for mechanical
reasons.
field orientation
Incorrect relation between electrical field
and mechanical motor motion.
Incorrect motor encoder signal.
Incorrect motor connection.
Mechanical brakes not released.
See "Speed Encoders" on page 18 – 293.
8B30 Motor Measured motor temperature is too high.
temperature
No temperature sensor
%.2s too high
Motor encoder cable is defective (wire
broken).
Entry in motor table is incorrect.
Incorrect or defective temperature sensor
was installed.
See "Speed Encoders" on page 18 – 293.
See Service Manual Inverter Systems and
Motors.
4 – 34
Measures for error diagnosis and/or
corrective action
Additional information and descriptions in
the manual
Check the machine parameters for number
of signal periods and distance for the
number of signal periods.
Check the machine parameter for the linear
distance of one motor revolution.
For linear motors: check column STR of the
motor table.
Check the speed encoder connection.
Check the motor connection.
Release brakes during orientation.
See "Sequence for Finding Errors in the
Control Loop" on page 6 – 62.
See "Speed Encoders" on page 18 – 293.
See Service Manual Inverter Systems and
Motors.
Let the motor cool down.
Check the motor encoder cable.
Check the entry in the motor table.
Measure the temperature sensor (576
[Ohm] at 20 [°C]).
See "Speed Encoders" on page 18 – 293.
See Service Manual Inverter Systems and
Motors.
HEIDENHAIN Service Manual iTNC 530