ABB ACSM1 Firmware Manual page 133

0...600 s
26.09 ACC COMP FTIME
Defines the filter time for the acceleration compensation.
0...1000 ms
26.10 SPEED WIN FUNC
Enables or disables speed error window control.
Speed error window control forms a speed supervision function for a speed and torque-controlled
drive (Add operating mode). It supervises the speed error value (speed reference – actual speed). In
the normal operating range, window control keeps the speed controller input at zero. The speed
controller is evoked only if
• the speed error exceeds the upper boundary of the window (parameter
• the absolute value of the negative speed error exceeds the lower boundary of the window
(parameter 26.12 SPEED WIN
When the speed error moves outside the window, the exceeding part of the error value is connected to
the speed controller. The speed controller produces a reference term relative to the input and gain of
the speed controller (parameter
reference. The result is used as the internal torque reference for the drive.
Example: In a load loss condition, the internal torque reference of the drive is decreased to prevent an
excessive rise of the motor speed. If window control were inactive, the motor speed would rise until a
speed limit of the drive were reached.
(0) Disabled
(1) Absolute
(2) Relative
26.11 SPEED WIN HI
Defines the upper boundary of the speed error window. Depending on the setting of parameter
SPEED WIN FUNC, this is either an absolute value or relative to speed reference.
0...3000 rpm
26.12 SPEED WIN LO
Defines the lower boundary of the speed error window. Depending on the setting of parameter
SPEED WIN FUNC, this is either an absolute value or relative to speed reference.
0...3000 rpm
Derivation time for acceleration/deceleration compensation.
FW block: SPEED ERROR
Filter time for acceleration compensation. 0 ms = filtering disabled.
FW block: SPEED ERROR
LO).
28.02 PROPORT GAIN) which the torque selector adds to the torque
Speed error window control inactive.
Speed error window control active. The boundaries defined by
parameters 26.11 and 26.12
Speed error window control active. The boundaries defined by
parameters 26.11 and 26.12
FW block: SPEED ERROR
Upper boundary of speed error window.
FW block: SPEED ERROR
Lower boundary of speed error window.
(see above)
(see above)
26.11 SPEED WIN
are absolute.
are relative to speed reference.
(see above)
(see above)
Parameters and firmware blocks
133
HI), or
26.10
26.10