During operation
821XKlimaBA0399 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.
- 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.
- If you use the function CW/CCW (selection of the direction of
rotation) with the configuration C007 = -0- to -13-:
- The drive can reverse the direction of rotation in the event
of a control-voltage failure or a cable break.
- If you use the function ”Flying-restart circuit” (C142 = -2-,
-3-) with machines with low inertia torque and friction:
- The motor can start for a short time or reverse the
direction of rotation for a short time after enabling the
controller when the motor is in standstill.
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