38 - 23/May/97
If the recovery resistance works for intervals shorter than the time necessary to reach
thermal equilibrium, the resistor can temporarily handle power levels up to 10 times the
nominal power rating of the resistor (short time overload).
If not specifically requested, systems are provided with standard 3.9
Ω
, 370W recovery
resistor.
An oversized Power Supply with three 8.2
Ω
, 370 W (parallel configuration) is available.
WARNING: an unusual application with motor driven by the load, a large portion
of the time, could result in overheating of the recovery resistor.
An unusual application with motor driven by high inertial load from
high velocity in very short deceleration time could result in the
explosion of the input capacitor.
It is suggested contacting our Customer Service.
WARNING: do not touch recovery resistor during operation to avoid scalds.
Ventilated enclosures containing dynamic braking resistors shall
provide a degree of protection of at least IP22 (according to EN
60204-1, par. 13.3).
1.12 Standard Configurations
The modules are available in almost all combinations in the multiple version (see Fig.1.13A
and 1.13B).
We recommend to contact our Sales Locations or Service Centers for guidance on correct
selection of drives.
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