Parameters 163
23.13 Deceleration time 1 Defines deceleration time 1 as the time required for the speed
to change from the speed defined by parameter 46.01 Speed
scaling (not from parameter 30.12 Maximum speed) to zero.
If the speed reference decreases slower than the set
deceleration rate, the motor speed will follow the reference.
If the reference changes faster than the set deceleration rate,
the motor speed will follow the deceleration rate.
If the deceleration rate is set too short, the drive will
automatically prolong the deceleration in order not to exceed
drive torque limits (or not to exceed a safe DC link voltage). If
there is any doubt about the deceleration time being too
short, ensure that DC overvoltage control is on (parameter
30.30 Overvoltage control).
Note: If a short deceleration time is needed for a high inertia
application, the drive should be equipped with braking
equipment such as a brake chopper and brake resistor.
5.000 s
0.000…1800.000 s Deceleration time 1. 10 = 1 s
23.23 Emergency stop
time
Defines the time inside which the drive is stopped if an
emergency stop Off3 is activated (ie. the time required for the
speed to change from the speed value defined by parameter
46.01 Speed scaling or 46.02 Frequency scaling to zero).
Emergency stop mode and activation source are selected by
parameters 21.04 Emergency stop mode and 21.05
Emergency stop source respectively. Emergency stop can
also be activated through fieldbus.
Note:
• Emergency stop Off1 uses the standard deceleration ramp
as defined by parameters 23.12…23.13.
• The same parameter value is also used in frequency
control mode (ramp parameters 28.72…28.73).
3.000 s
0.000…1800.000 s Emergency stop Off3 deceleration time. 10 = 1 s
23.32 Shape time 1 Defines the shape of acceleration ramp at the beginning of
acceleration.
0.000
0.000...1800.000 s Shape time 1.
24
24 Speed reference
conditioning
Speed error calculation; speed error window control
configuration; speed error step.
See the control chain diagram on page 409.
24.01 Used speed
reference
Displays the ramped and corrected speed reference (before
speed error calculation). See the control chain diagram on
page 409.
This parameter is read-only.
-
-30000.00…
30000.00 rpm
Speed reference used for speed error calculation. See par.
46.01
24.02 Used speed
feedback
Displays the speed feedback used for speed error calculation.
See the control chain diagram on page 409.
This parameter is read-only.
-
-30000.00…
30000.00 rpm
Speed feedback used for speed error calculation. See par.
46.01
24.03 Speed error filtered Displays the filtered speed error. See the control chain
diagram on page 409.
This parameter is read-only.
-
-30000.0…
30000.0 rpm
Filtered speed error. See par.
46.01
No. Name/Value Description Def/FbEq16
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