HEIDENHAIN ITNC 530 - Page 34

4 – 34 HEIDENHAIN Service Manual iTNC 530
8B20 Error <axis>
field orientation
 Field orientation impossible for mechanical
reasons.
 Incorrect relation between electrical field
and mechanical motor motion.
 Incorrect motor encoder signal.
 Incorrect motor connection.
 Mechanical brakes not released.
 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 “Speed Encoders” on page 18 – 293.  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.
8B30 Motor
temperature
%.2s too high
 Measured motor temperature is too high.
 No temperature sensor
 Motor encoder cable is defective (wire
broken).
 Entry in motor table is incorrect.
 Incorrect or defective temperature sensor
was installed.
 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.
 See “Speed Encoders” on page 18 – 293.
 See Service Manual Inverter Systems and
Motors.
Error message Possible cause of error Measures for error diagnosis and/or
corrective action
Additional information and descriptions in
the manual
Additional information and descriptions in
the manual