ABB +N5600 Firmware Instructions page 245

No. Name/Value
DI6
DIO1
DIO2
Other [bit]
21.06 Zero speed limit
0.00 ... 30000.00
rpm
21.07 Zero speed delay
0 ... 30000 ms
Description
Digital input DI6 (10.02 DI delayed
Digital input/output DIO1
Digital input/output DIO2
Source selection (see Terms and abbreviations
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.
Zero speed limit.
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.
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
stopped and the motor coasts to a standstill.
Speed
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
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.
Speed
Delay
Zero speed delay.
status, bit 5).
(11.02 DIO delayed status, bit 0).
(11.02 DIO delayed status, bit 1).
on page 148). -
limit, inverter modulation is
Speed controller switched off:
Motor coasts to a stop.
21.06 Zero speed limit
Time
limit, the zero speed delay
Speed controller remains
active. Motor is decelerated to
true zero speed.
21.06 Zero speed limit
Time
Parameters 245
Def/FbEq16
8
11
12
30.00 rpm
See par.
46.01
0 ms
1 = 1 ms