Lenze DSD - Manual (Page 479)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
479
18 Drive dimensioning messages
18.11 Brake chopper
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18.11 Brake chopper
18.11.1 Ambient temperature of the brake chopper too high
18.11.2 Permissible site altitude of the brake chopper exceeded
18.11.3 Permanent utilisation of the brake chopper > 100 %
Warning!
The ambient temperature of the inverter is xxx °C. Thus the max. permissible ambient temperature of the
brake chopper of yyy °C is exceeded.
Cause Effects Possible remedies
The permissible ambient tempera-
ture is exceeded.
The drive gets too hot and switches
itself off (provided that a thermal
contact is available and is evaluated).
Fire hazard if the thermal contact is
not evaluated!
Contact Lenze.
Warning!
The site altitude is xxx m. It thus falls below the max. permissible site altitude of the brake chopper of
yyy m.
Cause Effects Possible remedies
Due to the lower atmospheric pres-
sure, the cooling effect of the air is re-
duced.
The drive gets too hot and switches
itself off (provided that a thermal
contact is available and is evaluated).
Fire hazard if the thermal contact is
not evaluated!
Contact Lenze.
Warning!
The permanent utilisation of the brake chopper is xxx %. Thus the limit value of 100 % is exceeded.
Cause Effects Possible remedies
The brake resistor is continuously
overloaded.
The brake resistor gets too hot.
• The thermal contact is opened.
Fire hazard if the thermal contact is
not evaluated!
Use larger drive.