Parameters 247
Stall time. See parameter
.
20 s
0…3600 s
Stall time.
-
Defines, together with
, the maximum allowed speed of the motor
(overspeed protection). If the speed (
) exceeds the speed limit defined by parameter
by more than the value of this parameter, the
drive trips on the
fault.
WARNING!
This function only supervises the speed in
vector motor control mode. The function is not
effective in scalar motor control mode.
Example:
If the maximum speed is 1420 rpm and speed trip
margin is 300 rpm, the drive trips at 1720 rpm.
500.00 rpm
0.00…10000.00
rpm
Overspeed trip margin.
See par.
and
Emergency ramp supervision delay
, together with the
derivative of
, 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
. Otherwise,
defines the
maximum allowed deviation from the expected deceleration
rate, which is calculated from parameters
…
(Off1)
or
(Off3). If the actual
deceleration rate (
) deviates too much from the
expected rate, the drive trips on
, sets bit 8 of
, and coasts to a
stop.
If
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
Def/FbEq16
Time
Overspeed trip level
Overspeed trip level
0
ACS580 FW.book Page 247 Wednesday, September 21, 2016 9:48 PM
Содержание ACS580 Series
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