During operation
820XBA1097 6-1
6 During operation
-
Replace defective fuses with the prescribed type only when
no voltage is applied.
There are no fuses in the controller.
-
Cyclic mains switching:
- Do not switch on the controller more than every 3 minutes,
otherwise the internal initial-current limitation can be
overloaded.
-
Switching on the motor side:
- Permissible for emergency switch-off.
- Monitoring messages can be activated when switching the
motor when the controller is enabled.
-
The plug-in connection terminals of the 820Xcontrollers must
only be connected or disconnected when no voltage is
applied.
-
Depending on the controller settings, the connected motor
can be overheated:
- For instance, longer DC-braking operations.
- Longer operation of self-ventilated motors at low speed.
-
The controllers generate an output frequency of up to 480 Hz
when setting it correspondingly:
- If an inappropriate motor is connected, a hazardous
overspeed may occur.
- With frequencies >240 Hz, 820Xcontrollers can activate
the over-current switch-off.
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