Lenze DSD - Manual (Page 457)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
457
18 Drive dimensioning messages
18.5 Lenze motor
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18.5.7 Max. permissible motor current of yyy is exceeded
18.5.8 Overload of the motor >xxx %
18.5.9 Max. permissible ambient temperature of the blower is exceeded
Note!
The max. output current of the inverter is xxx A. Thus the max. permissible motor current of yyy A is ex-
ceeded.
Cause Effects Possible remedies
The max. output current of the in-
verter is higher than the max. per-
missible motor current.
• Compared to the motor, the in-
verter is overdimensioned.
• The motor winding can be de-
stroyed by the too high output
current.
• Synchronous motors can be de-
magnetized.
Limit the output current of the in-
verter to the value permissible for
the motor.
Note!
The overload of the motor is higher than xxx %. The thermal utilisation of the motor and the currents cal-
culated for inverters and other components are not correct anymore. Up to an overload of yyy % the DSD
can execute calculations with a sufficient accuracy.
Cause Effects Possible remedies
In case of high overloads, the torque-
generating current share increases
more than the torque due to satura-
tions in the motor.
The currents calculated for the in-
verter and other components are not
correct anymore.
Consider corresponding reserves
when selecting the inverter.
Warning!
The ambient temperature of the motor or geared motor is XXX °C. Thus, the max. permissible ambient
temperature of the blower of 40 °C is exceeded.
Cause Effects Possible remedies
The permissible ambient tempera-
ture of the blower is exceeded.
The blower is overheated and may
fail. This may cause the motor to
overheat and fail as well.
Select motor without blower.