What to do for external error on Lenze DC Drives?
- CChristine HowardSep 7, 2025
If Lenze DC Drives show an external error, it means the digital input “TRIP set” is active. Remove the external error to resolve this.

What to do for external error on Lenze DC Drives?
If Lenze DC Drives show an external error, it means the digital input “TRIP set” is active. Remove the external error to resolve this.
What to do if Lenze DC Drives show a short-circuit or overload?
If your Lenze DC Drive indicates a short-circuit, first find the reason for the short-circuit and check the motor cable. If there is excessive capacitive charging current of the motor cable, use shorter motor cables with lower charging current. If the acceleration time is too short, increase it and check the controller selection. Also, check the wiring and the motor for defects. Finally, if there's frequent and long overload, check the controller selection.
What to do if Lenze Tmd DC Drives outputs are inhibited?
If the outputs of Lenze DC Drives are inhibited, and the controller is set up for remote keypad or serial control (see C01), start the controller via the remote keypad or serial link.
How to resolve drive identification fault in Lenze Tmd DC Drives?
To resolve a drive identification fault in Lenze DC Drives, ensure that you set C86...C91 before performing motor calibration. Refer to c48 for more information.
What causes flying restart fault on Lenze Tmd DC Drives?
A flying restart fault on Lenze DC Drives occurs when the controller is unable to synchronize with the motor during a restart attempt. Check the motor and load to resolve this.
What causes single phase fault in Lenze Tmd DC Drives?
A single-phase fault in Lenze DC Drives is caused by the loss of a mains phase. To resolve this, check the mains voltage.
What to do if Lenze Tmd lose motor phase?
If there is a loss of motor phase in Lenze DC Drives, and the controller is in vector mode (C14 = 4, 5), ensure the motor is connected correctly in vector mode. Also, check the motor and motor cable for any open-circuits.
What causes dynamic braking fault on Lenze DC Drives?
A dynamic braking fault in Lenze DC Drives is caused by the dynamic braking resistors overheating. To resolve this, increase the deceleration time.
How to fix EPM error on Lenze DC Drives?
To fix an EPM error on Lenze DC Drives, power down the drive and replace the EPM, as the error indicates that the EPM is either missing or defective.
What to do if Lenze DC Drives controller is overtemperature?
If the Lenze DC Drives controller is too hot inside, reduce the controller load and improve cooling to resolve the overtemperature issue.
Explanation of pictographs, signal words (DANGER, WARNING, NOTE), and their consequences.
Compliance with CE, UL approvals, and environmental conditions for operation and transport.
Detailed table of power ratings, voltage, current (IN, Imax), and frequencies for different model types.
Information on dimensions, mounting, and environmental considerations for installation.
Provides physical dimensions (a, a1, b, b1, b2, c, s1, s2) and weight for various drive models.
Guidance on electrical connections, EMC requirements, and fuse/cable specifications.
Details on noise emission compliance, screen clamps, control cables, and filters for EMC.
Recommendations for fuse types, miniature circuit breakers, and cable cross-sections for different voltage inputs.
Visual representation of electrical connections for different voltage inputs and control terminals.
Description of each terminal's function for digital and analog inputs/outputs and communication.
Step-by-step guide on how to change parameters using the keypad and display.
Information on the EPM's role in storing settings and its optional programmer for easy configuration.
Detailed list of parameters (Code, Name, Possible Settings, IMPORTANT) for configuring the drive.
Procedures for selecting Vector mode or Enhanced V/Hz mode for motor control.
Steps to connect, power up, and configure parameters for Vector speed or torque control.
Steps to configure parameters for Enhanced V/Hz mode, including Auto-Boost and constant boost.
Explanation of status codes, their causes, and recommended remedies for operational issues.
List of error codes, their potential causes, and specific remedies or contact information.











