ABB ACS880 ESP, Firmware Manual

Page: 192 / 494

192 Parameters
DIO1 Digital input/output DIO1 ( 11.02 DIO delayed status , bit 0). 11
DIO2 Digital input/output DIO2 ( 11.02 DIO delayed status , bit 1). 12
Other [bit] Source selection (see Terms and abbreviations on
page 101 ).
-
21.06 Zero speed limit Defines the zero speed limit. The motor is stopped along a
speed ramp (when ramped stop is selected) 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.
46.01
21.07 Zero speed delay 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
21.06 Zero speed limit , 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
21.06 Zero speed limit , 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.
21.06 Zero speed limit
Speed
Time
Speed controller remains
active. Motor is decelerated to
true zero speed.
21.06 Zero speed limit
Speed
Time
Delay