
212 Parameters
Defines, together with
and
, the maximum allowed
frequency of the motor (overfrequency protection). The
absolute value of this overfrequency trip level is calculated
by adding the value of this parameter to the higher of the
absolute values of
and
If the output frequency (
the overfrequency trip level (ie. the absolute value of the
output frequency exceeds the absolute value of the
overfrequency trip level), the drive trips on the
fault.
15.00 Hz
0.00…10000.00 Hz
Overfrequency trip margin.
See par.
Parameters
31.32 Emergency ramp supervision
and
31.33 Emergency ramp supervision delay
, together with
, provide a
supervision function for emergency stop modes Off1 and
Off3.
The supervision is based on either
• observing the time within which the motor stops, or
• comparing the actual and expected deceleration rates.
If this parameter is set to 0%, the maximum stop time is
directly set in parameter
defines
the maximum allowed deviation from the expected
deceleration rate, which is calculated from parameters
(Off3).
If the actual deceleration rate (
24.02
) deviates too much
from the expected rate, the drive trips on
, sets bit 8 of
, and coasts to a stop.
is set to 0% and
is set to 0 s, the
emergency stop ramp supervision is disabled.
See also parameter
0%
0…300%
Maximum deviation from expected deceleration rate.
1 = 1%
No.
Name/Value
Description
Default
FbEq 16
Frequency
Time
Overfrequency trip level
Overfrequency trip level
ABS(
)
ABS(
)
ACS180 FW.book Page 212 Tuesday, March 9, 2021 2:25 PM