Commander SE User Guide
2 Issue Number 5
Addendum: Spinning motor software
Two issues have been foundduringlaboratory testing of Commander SE relating
to the use of spinning motor software, parameter 33 (parameter 6.09 in
advanced parameters).
The first issue appears both in open loop vector control (as default) and fixed
boost mode. A condition occurs when the Drive's software releases the motor
from spinning motor control back to normal control. This issue is more
pronounced on Commander SE sizes 3 and 4 but is present to a lesser extent
on Commander SE sizes 1 and 2. It is not believed that this issue will cause any
field problems.
The second issue relates to the operation of the spinning motor software while
in fixed boost mode, parameter5.14 set to mode 2. (Note that Fixed boost mode
can only be selected from the advanced parameters through serial
communications). The problem occurs if the motor to be 'caught' is rotating in
the reverse direction. While attempting to 'catch' the motor, the Drive will trip on
OI.AC. If the motor to be 'caught' is rotating in the forward direction or at
standstill, this problem will not occur. Also, if the Drive is set up in open loop
vector mode (as default) this problem will not occur.
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