July 2013 7.9 Field orientation 1117
Before determining the field angle (FIELD ORIENT. soft key not yet pressed)
the inverter must be in the following mode of operation:
Green "READY" LED on
Red "STO A" LED (previously SH1) off
Red "STO B" LED (previously SH2) on (drive controller not ready, brakes
closed)
As soon as the drive enable comes from the PLC, the Finding field angle
message appears, otherwise 8B40 No drive release appears.
The motor moves and the field angle is determined. Limit switches are not
taken into account.
In order to avoid a possible error message resulting from standstill monitoring,
the threshold for standstill monitoring during field orientation can be
configured in MP1120.x.
Switch the control on.
Do not acknowledge the Power Interrupted message. In the Programming
and Editing mode of operation, use the MOD key to enter the code number
688379. The oscilloscope is started.
Press the I CONTROL soft key.
In the Manual Operation mode of operation, acknowledge the Power
Interrupted message.
Use the SELECT AXIS soft key in the oscilloscope to select the corresponding
axis.
Press the FIELD ORIENT. soft key.
The PLC must
• switch the drive on/off
• release and lock the brakes
The motor moves back and forth. The field angle is determined for the
reference mark or datum, and is stored automatically. The Finding field
angle progress bar appears. Then another message appears (see page 7 –
1111).
Press the END soft key.
The control carries out a reset. If the message 8630 Field orient.
successful appeared, then the field angle was assigned and is available.
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