ABB ACQ810 - Limits

170 Parameters
19.09 Speed TripMargin Defines, together with 20.01 Maximum speed and 20.02
Minimum speed, the maximum allowed speed of the motor
(overspeed protection). If actual speed (01.01 Motor speed
rpm) exceeds the speed limit defined by parameter 20.01 or
20.02 by more than the value of this parameter, the drive
trips on the OVERSPEED (0x7310) fault.
Example: If the maximum speed is 1420 rpm and speed trip
margin is 300 rpm, the drive trips at 1720 rpm.
0.0 … 10000.0 rpm Overspeed trip margin. 10 = 1 rpm
19.10 Speed window Defines the absolute value for the motor speed window
supervision, i.e. the absolute value for the difference
between the actual speed and the unramped speed
reference (01.01 Motor speed rpm - 03.03 SpeedRef
unramp). When the motor speed is within the limits defined
by this parameter, signal 02.24 FBA main sw bit 8
(AT_SETPOINT) is 1. If the motor speed is not within the
defined limits, bit 8 is 0.
0 … 30000 rpm Absolute value for motor speed window supervision. 1 = 1 rpm
20
20 Limits
Drive operation limits.
See also section Speed controller tuning on page 68.
20.01 Maximum speed Defines the allowed maximum speed.
0 … 30000 rpm Maximum speed. 1 = 1 rpm
20.02 Minimum speed Defines the allowed minimum speed.
Note: If the motor may only be run in the forward direction
within a certain range above 0 rpm, leave this parameter at
0 rpm, and use parameter 21.09 SpeedRef min abs to define
the lower boundary of the range.
-30000 … 0 rpm Minimum speed. 1 = 1 rpm
No. Name/Value Description FbEq
Speed trip margin
Speed trip margin
Speed
Time
20.01
20.02