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7.2.8
Selection of an actual value for display
After commissioning, the value of parameter
Actual Frequency
241 is displayed at
the control unit KP500.
If another actual value is to be displayed after a restart, make the following settings:
•
Use the arrow keys to select the actual value to be displayed as from now.
•
Use the ENT key to display the value of the parameter.
•
Press the ENT key again. "SEt" is displayed for confirmation.
As from now, the selected actual value is displayed after each restart.
If the parameter settings were made via the optional control software or in the PARA
menu branch of the control unit, the display of the selected actual value must be
activated manually. Use the ESC key to switch to the selection of the actual value for
display again.
7.3
Check direction of rotation
Warning! Dangerous voltage may be present at the motor terminals and the
terminals of the brake resistor even after the frequency inverter has
been disconnected from power supply. Wait for some minutes until the
DC link capacitors have discharged before starting to work at the unit.
•
The unit may only be connected with the power supply switched off.
•
Make sure that the frequency inverter is de-energized.
To check if the reference value and the actual direction of rotation of the drive
correspond to one another, proceed as follows:
•
Operate the drive at low speed, i.e. specify a reference value of approx. 10%.
•
Release the frequency inverter briefly {signal at digital inputs S1IND (controller
release) and S2IND (start of clockwise operation) or S1IND (controller release)
and S3IND (start of anti-clockwise operation)}.
•
Check if the motor shaft turns in the required direction.
In case the sense of rotation is wrong, exchange two motor phases, e.g. U and V at
the terminals of the frequency inverter. The mains-side connection of the frequency
inverter does not affect the sense of rotation of the drive. In addition to checking the
drive, the corresponding actual values and operating messages can be read out by
means of the control unit.
Note:
The commissioning of the frequency inverter is complete and can be
complemented by further settings in the PARA menu. The set
parameters have been selected in such a way that they are sufficient
for commissioning in most applications. The other settings which are
relevant to the application can be checked according to the operating
instructions.
Содержание Active ACT 201-05
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