Lenze DSD - Manual (Page 465)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
465
18 Drive dimensioning messages
18.8 Inverters
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18.8 Inverters
18.8.1 Ambient temperature too high
18.8.2 Max. permissible site altitude exceeded
18.8.3 Max. output current exceeded
Warning!
The ambient temperature of the inverter is xxx °C. Thus the max. permissible ambient temperature of the
inverter of yyy °C is exceeded.
Cause Effects Possible remedies
The ambient temperature is too high. The inverter switches itself off due to
a too high heatsink temperature.
• Select a different inverter.
• Select air-conditioned control
cabinet.
• Check other cooling concept.
Warning!
The site altitude of the inverter is xxx m. Thus the max. permissible site altitude of the inverter of yyy m is
exceeded.
Cause Effects Possible remedies
Due to the lower atmospheric pres-
sure, the cooling effect of the air is re-
duced.
The inverter is not cooled sufficiently
and switches itself off due to a too
high heatsink temperature.
Contact Lenze
Warning!
The utilisation of the inverter relative to the max. current is xxx %. Thus the limit value of 100 % is exceed-
ed.
Cause Effects Possible remedies
The maximum output current of the
inverter is too low.
• Drive does not start.
• Hoist sags.
• Drive cannot follow the motion
profile.
• Select a greater inverter, or one
with a higher overload capacity.
• Improve the utilisation of the in-
verter voltage range:
• If the motor is not operated at
rated speed, it might be possi-
ble to improve the utilisation of
the voltage range by adapting
the gearbox ratio, and thus re-
duce the current required.