6.3.4. STO signal removal
Safety_stage_low_voltage
: STO protection intervention
If the power to the STO circuit is disconnected, the drive releases the axis, disabling the output power.
If there is a conflict between the command and signal feedback, the STO circuit inside the drive could be damaged; check that 24
V DC absorption on the two inputs is approximately 50 mA per input. If absorption is different from this value, replace the
module.
6.3.5. Memory device errors
eeprom_fault
The drive's internal memory is damaged or inaccessible. The drive module must be replaced.
6.3.6. Data Corrupted Fault
•
parameter_initialisation_error
•
node_identi�er_data_memory_corrupted
•
user_data_memory_corrupted
•
restore_data_memory_corrupted
•
factory_data_memory_corrupted
•
calibration_data_memory_corrupted
•
diagnosis_data_memory_corrupted
If saved data is corrupted, the drive reports an alarm. To solve the problem, try checking the drive con
�
guration using the GUI
and saving the parameters in advanced mode, then reset the drive and restart the GUI. If the problem persists, replace the drive.
6.3.7 Brake Chopper Fault
brake_feedback_fault
This alarm indicates a fault in the motor brake circuit.
The drive checks that the output voltage is consistent with the command. The alarm may be caused by a mismatch between the
command and output voltage.
The internal circuit is protected from short circuits and the protection is enabled if current to the motor brake exceeds 2 A. If
this occurs, the causes may be:
Cause
Check
Short circuit on the cable
connecting to the brake
Use a multimeter or other suitable instrument to check for short circuits in the brake cable or
between the brake cable and earth, or:
• Disconnect the brake cable on the drive side and try to enable again
• If the problem is not remedied, replace the brake cable
Short circuit in the brake
Use a multimeter or other suitable instrument to check for short circuits in the brake or between
the brake and earth: Alternatively:
• Disconnect the brake cable on the motor side and try to enable again
• If the problem is not remedied, replace the motor
Detection circuit fault
• Send the drive away for analysis and repairs
MAR2-E-191
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