ABB ACS880-104

Parameters 245
DI6 Digital input DI6 (10.02 DI delayed status, bit 5). 8
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 148). -
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. Zero
speed delay can be used e.g. with the jogging function.
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