During operation
8200SHB0199
6-1
6 During operation
6.1 Operating information
6.1.1 General
- Replace defective fuses with the prescribed type only when no voltage is
applied.
There are no fuses in the controller.
- With cyclic mains connection and disconnection:
- Do not switch on the controller more than every three 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 820X controllers 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.
- With the corresponding parameter setting, the controllers reach an output
frequency of up to 480 Hz:
- If an inappropriate motor is connected, a hazardous overspeed may
occur.
- With frequencies > 240 Hz, the overcurrent switch-off of the 820X
controllers can be activated.
- With the function CW/CCW (selection of the direction of rotation) in
configuration C007 = -0- ... -13-, -23 ... -45-:
- The drive can reverse the direction of rotation in the event of a
control-voltage failure or a cable break.
- If the function ”flying-restart circuit” (C142 = -2-, -3-) is used with machines
with low inertia torque and friction:
- After the controller has been enabled in standstill, the motor can start for a
short time or reverse the direction of rotation.
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