In case of excessive drive or motor temperature warning, an analysis of the cause of the problem must
be performed according to the following table.
Cause Action
The drive temperature is high (above 50 °C on the
chassis)
Check the efficiency of the cooling fans; if they do
not work, replace the drive.
Check the continuous current supplied by the
axes; if greater than the expected value, check the
operation state of the machine.
The temperature of the motor is high (higher than
85 °C on the structure of the motor)
Check that there are no changes in the work cycle
of the machine, and that the control parameters
are still correct for the application.
Make sure the phasing has not changed.
The drive temperature is low (below 50 °C) A failure of the internal temperature reading
circuit is possible.
The engine temperature is low (below 60 °C on
the structure of the motor)
There could be a fault in the temperature sensor
inside, or an error in the thermal protection
settings (software).
9.2.4 Removal of STO Signal
l
Safety_stage_low_voltage: STO protection intervention
When the STO circuit removes power, it releases the axis, disabling the output power. If there is a
discrepancy between the command and the feedback signal, the STO circuit inside the drive may be
damaged. Therefore, verify at both inputs that the absorption at 24 VDC is approximately 50 mA per
input. If the absorption is different from that value (null or greater than 200 mA), replace the drive.
9.2.5 Errors on Memory Devices
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eeprom_fault
The drive's internal memory is damaged or inaccessible. Replace the drive.
9.2.6 Data Corrupted Fault
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parameter_initialization_error
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node_identifier_data_memory_corrupted
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user_data_memory_corrupted
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restore_data_memory_corrupted
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factory_data_memory_corrupted
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calibration_data_memory_corrupted
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diagnosis_data_memory_corrupted
If there is invalid information in the memory, the drive signals an alarm. To solve the problem:
PN: L-MAM2-E-201
Moog Casella DM2020 Installation and Startup Guide
9.2.4 Removal of STO Signal
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