Lenze m850, Инструкции по монтажу и включению

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Diagnostics and fault elimination
Malfunctions
If faults occur during the operation of the drive, the table below helps you to identify the
causes. If it is not possible to remedy the fault using the measures listed, please contact the
Lenze service department.
Error Possible causes Remedy
Motor too hot
Can only be evaluated by measuring the surface
temperature:
•
Non-ventilated motors >140 °C
•
Externally ventilated or self-ventilated motors
> 110 °C
Insufficient cooling air, blocked air ducts. Ensure unimpeded circulation of cooling air
Preheated cooling air Ensure a sufficient supply of fresh cooling air
Overload, with normal mains voltage the
current is too high and the speed too low Use larger drive (determined by power
measurement)
Rated operating mode (S1 to S8 IEC/EN
60034-1) exceeded Adjust rated operating mode to the specified
operating conditions. Determination of correct
drive by expert or Lenze customer service
Loose contact in supply cable (temporary
single-phase operation!) Tighten loose contact
Fuse has blown (single-phasing!) Replace fuse
Overload of the drive Check load and, if necessary, reduce by means
of longer ramp-up times
Check winding temperature
Heat dissipation impeded by deposits Clean surface and cooling fins of the drives
Heat dissipation hindered by thermally
insulated attachment Note the cooling effect of the mounting flange
during project planning
Motor suddenly stops and does not restart Overload monitoring of the inverter is activated Check inverter settings
Reduce load caused by longer acceleration
times
Incorrect direction of rotation of the motor,
correct display on the inverter Motor cable with reverse polarity Check and correct polarity
Polarity of encoder cable reversed
Motor rotates normally but does not reach the
expected torque Motor cable interchanged cyclically
Not all motor phases connected Connect the phases at the motor cable
connection correctly
Motor turns in one direction at maximum speed
in an uncontrolled manner Motor cable interchanged cyclically Check motor connection and, if necessary,
correct
Polarity of encoder cable reversed Check encoder connection and, if necessary,
correct
Motor slowly rotates in one direction and is not
influenced by the inverter Polarity of motor cable and encoder cable
reversed Check and correct polarity
Irregular running Insufficient shielding of motor or resolver cable Checking shielding and earth connection
Inverter gain too large
Adjust the gains of the controllers (see
operating instructions for the inverter)
Vibrations Insufficiently balanced coupling elements or
machine Rebalance
Inadequate alignment of drive train Realign machine unit, check foundation, if
necessary.
Loose fixing screws Check and tighten screw connections
Running noises Foreign particles inside the motor Repair by the manufacturer, if necessary
Bearing damage
Diagnostics and fault elimination
Malfunctions
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