3 Optional equiment
BU 0750 GB Technical design subject to change 31
How to control the frequency inverter with the ControlBox
If you want to control the frequency inverter with the ControlBox, do not previously enable the inverter via the
control terminals or via a serial interface (P509 = 0).
When the "START" button is pressed, the frequency inverter display changes to showing the operating value
selected in P001. The frequency inverter will supply 0Hz or any higher minimum frequency set in P104 or the
start-off frequency, if a setting has been performed in parameter P113.
Indication of parameter set:
In the operating mode, the LED's show the parameter set which currently control operation, whereas while
parameterization is going on ( P000) they indicate the parameter set involved. In the latter case the parame-
ter set is shown in a binary coded form.
By changing the setting in parameter P100, users may even switch from one parameter set to another without
operation having to be interrupted (control ensured via the ControlBox).
Frequency setpoint:
The current frequency setpoint depends on the values set in the start-off frequency (P113) and minimum fre-
quency (P104) parameters. This setpoint can be varied with the and value keys when the inverter is oper-
ated via the keyboard, and by pressing the ENTER key be permanently saved in P113 as a start-off frequency for the next
time the inverter is enabled.
Instant stopping:
To bring about instant stopping, the STOP key and the “ phase sequency reversal key should be
pressed simultaneously.
Save current frequency as
start-off frequency
(Enter key)
Set frequency = 0Hz
(operate simultaneously)
Phase sequence reversal
(change sense of rotat.)
Reduce frequency
verringern
Instant stopping
(operate simultaneously)
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