Technical data

12-16 Operating Torque Motors Rexroth IndraDyn T
DOK-MOTOR*-MBT********-PR03-EN-P
12.12 Troubleshooting
DANGER
Danger of injury due to moving elements!
Danger of injury due to hot surfaces!
⇒ Do not carry out any maintenance measures when
the machine is running.
⇒ Switch off the control device and the machine and
await the discharging time of the electric systems
⇒ During maintenance work, secure the system
against restarting and unauthorized use.
⇒ Do not work on hot surfaces.
WARNING
The rotor is magnetic! Risk of injury and danger
of squeezing by magnetic forces!
⇒ Eliminate movable metal objects or secure them
against movement.
⇒ Carefully handle magnetic parts.
⇒ Wear protective clothing and use mounting tools.
Possible causes for the malfunctioning of IndraDyn T motors can be
limited to the following areas:
• Motor cooling circuit and temperature variation
• Internal temperature sensor
• Mechanical damage of the motor
• Mechanical connection to machine
The encoder and the temperature sensor are controlled by the drive-
controller or control unit and are displayed according to the diagnosis.
Observe the notes in the corresponding documentation.
Some sample faults are shown below, along with potential causes. This
list does not lay claim to completeness.