Parameters 207
Defines, together with
and
, the maximum allowed speed of the motor
(overspeed protection). If
or the
estimated speed exceeds the speed limit defined by
parameter
or
by more than the value of this
parameter, the drive trips on the
fault.
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 … 6000.0 rpm
Overspeed trip margin.
See par.
Parameters
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
(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
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
Speed (
Time
Overspeed trip level
Overspeed trip level
0
Содержание ACS860
Страница 1: ... ABB INDUSTRIAL DRIVES ACS860 primary control program Firmware manual ...
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Страница 10: ...10 Table of contents ...
Страница 18: ...18 Using the control panel ...
Страница 24: ...24 Control locations and operating modes ...
Страница 54: ...54 Program features ...
Страница 78: ...78 Program features ...
Страница 90: ...90 Application macros ...
Страница 342: ...342 Additional parameter data ...
Страница 380: ...380 Fault tracing ...
Страница 381: ...Fault tracing 381 ...
Страница 382: ...382 Fault tracing ...
Страница 436: ...436 Control chain diagrams ...