Service

Check the oil fill level

Replace the seal

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• Check oil fill level
• Check the installation position for the version
• Check for overload
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• Check the oil fill level
• Check the oil condition (oil analysis)
• Change the oil
• Check the gear unit fastening/foundation
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• Check the gear unit fastening/foundation
• Check the coupling if fitted
• For frequency inverter operation, check the parameters
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• The oil type and quantity are stated on the type plate
• The oil type and quantity are stated on the order confirmation
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• Swap two phases on the electric motor (Notice! Not possible with back stop option!)
• Please contact Getriebebau NORD in case of back stop option

• Check the coupling if fitted
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• Investigate the use of a frequency inverter
• Change the gearing
• Use a motor with a different number of pole pairs
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• Check the parameter settings in case of frequency inverter operation
• Check the motor bearings and replace as necessary
• Check the fan/fan cover
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• Check the parameter settings in case of frequency inverter operation
• Check the motor bearings and replace as necessary
• Check the motor mounting and modify as necessary
• If a coupling is fitted between the motor and the gear unit, check the alignment and the coupling
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• Check the motor connection on the terminal board
• Check the supply voltage and the control of the protective device
• In the case of a brake motor, check the brake
• In the case of a back stop option, check the direction of rotation
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• In the case of a brake motor, check the brake
• Check the application with regard to heavy starting / design
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• Check the motor control or wiring
• If possible, operate the motor in the delta circuit; if necessary check or adapt the design with regard to overload
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• If the drive does not have a back stop, swap two phases of the power supply
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• Check the motor power supply
• Check the motor connection
• Check the application for excess load
• In the case of a brake motor, check the brake function
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• Check the power supply
• Check the fuse / motor protector
• Check the design and modify as necessary
• Check the motor windings
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• Check the fan
• For frequency inverter operation, check the minimum frequency/speed. Install an external fan if necessary
• Check the switching frequency for the operating mode of the motor and change the design as necessary
• Check the design and change the required motor power as necessary
• In the case of a brake motor, check the brake
• Check the installation location with regard to cooling
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• Measure the contact resistance of the temperature monitor in the motor terminal box
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• Measure the resistance at the contact of the temperature monitor in the motor terminal box
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• Check the supply voltage to the brake
• If the brake is controlled by a rectifier, check the rectifier
• Measure the resistance of the brake coil
• Check the air gap of the brake
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• Check the mains voltage and if necessary the control voltage (depending on the frequency inverter type).
• If necessary return the frequency inverter to the manufacturer for testing.

• Determine the cause of the switch on block via parameter (P700[3]) and the manual.

• Set automatic starting in P428 to "On", note the information in the manual.

• Check the motor data and match them with those on the type plate as necessary.
• Check the motor and the motor cable.
• Reduce the load.
• Check the precise error message via P700[1] and use the further remedial measures in the manual.
• If necessary return the frequency inverter to the manufacturer for testing.

• Check the load and speed, if necessary allow the motor to cool down or use an external fan.
• Check the thermistor resistance (TF≈200Ω/20C) and the connection.
• Bridge the thermistor input if it is not used.

• Increase the ramp time in P103.
• Use the V/f characteristic curve by setting parameters P211/212 to 0%.
• Use a suitable brake resistor.
• If necessary, adapt P217 (e.g. 200%).

• Determine the error code from the flashing code of the DS LED or read it out from P700. Then determine the suitable remedial measure from the manual.

• Check the input voltage, one phase may be missing.

• Check the encoder connection and the direction of rotation via P735; change P301 as necessary.

• Check the BUS telegram from the external PLC.