HEIDENHAIN iTNC 530 Service Manual page 31

Error message Possible cause of error
Additional information and descriptions in
the manual
8610 I2T value is Excessive load over the time of the drive.
too high <axis>
See "I2t monitoring" on page 3 – 676.
8620 Load is too Drive has maximum current and cannot
accelerate.
high <axis>
Excessive load (torque, power) on the drive.
8640 I2T value of The load of the motor is too high over the
duration.
motor is too high
<axis>
See "I2t monitoring" on page 3 – 676.
8650 I2T value of The load of the power module is too high
over the duration.
motor is too high
<axis>
See "I2t monitoring" on page 3 – 676.
8800 Signal LT- Inverter switch-off during closed-loop
control of a vertical axis (cause = vertical
RDY inactive
axis).
<axis>
See "Status of HEIDENHAIN inverters" on
page 3 – 682.
8810 Signal LT- Inverter switch-off during closed-loop
control of a vertical axis (cause = vertical
RDY inactive
axis).
<axis>
See "Status of HEIDENHAIN inverters" on
page 3 – 682.
8820 Field angle Field angle of the motor on the reference
point of the speed encoder has not yet been
unknown <axis>
ascertained.
July 2010
Measures for error diagnosis and/or
corrective action
Additional information and descriptions in
the manual
Reduce the load or the duration.
Check the motor table, power stage table
and configuration data.
Check whether the motor and power
module are designed for the load.
See Service Manual Inverter Systems and
Motors.
Reduce the load on the drive.
Check the motor table, power stage table
and machine parameters.
Check whether the motor and power
module are designed for the load.
See "Sequence for Finding Errors in the
Control Loop" on page 6 – 62.
See Service Manual Inverter Systems and
Motors.
Reduce the load or the duration.
Check the motor table and machine
parameters.
Check whether the motor is designed for
the load.
See Service Manual Inverter Systems and
Motors.
Reduce the load or the duration.
Check the motor table and machine
parameters.
Check whether the power module is
designed for the load.
See Service Manual Inverter Systems and
Motors.
Check the PLC program.
Check the wiring of the inverter.
See Service Manual Inverter Systems and
Motors.
Check the PLC program.
Check the wiring of the inverter.
See Service Manual Inverter Systems and
Motors.
Run a field orientation.
Check the motor table (column SYS).
See "Speed Encoders" on page 18 – 293.
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