150 Parameters
Defines the zero speed limit. The motor is stopped along a
speed ramp (when ramped stop is selected or emergency
stop time is used) until the defined zero speed limit is
reached. After the zero speed delay, the motor coasts to a
stop.
30.00 rpm
0.00…30000.00
rpm
Zero speed limit.
See par.
Defines the delay for the zero speed delay function. The
function is useful in applications where a smooth and quick
restarting is essential. During the delay, the drive knows the
rotor position accurately.
0 ms
Without zero speed delay:
The drive receives a stop command and decelerates along
a ramp. When actual motor speed falls below the value of
parameter
, inverter modulation is
stopped and the motor coasts to a standstill.
With zero speed delay:
The drive receives a stop command and decelerates along a
ramp. When actual motor speed falls below the value of
parameter
, the zero speed delay
function activates. During the delay the function keeps the
speed controller live: the inverter modulates, motor is
magnetized and the drive is ready for a quick restart.
0…30000 ms
Zero speed delay.
1 = 1 ms
No.
Name/Value
Description
Def/FbEq16
Speed controller switched off:
Motor coasts to a stop.
Speed
Time
Speed controller remains
active. Motor is decelerated to
true zero speed.
Speed
Time
Delay
Summary of Contents for ACQ580
Page 1: ...ABB drives for water Firmware manual ACQ580 pump control program ...
Page 4: ... 2017 ABB Oy All Rights Reserved 3AXD50000035867 Rev C EN EFFECTIVE 2017 06 21 ...
Page 30: ...26 Start up control with I O and ID run ...
Page 40: ...36 Default configuration ...
Page 304: ...300 Parameters ...
Page 340: ...336 Additional parameter data ...