Actual signals and parameters
83
21.10 ZERO SPEED DELAY Defines the delay for zero speed delay function. The function is useful
in applications where a smooth and quick restarting is essential.
During the delay the drive knows accurately the rotor position.
No Zero Speed Delay
The drive receives a stop command and decelerates along a ramp.
When the motor actual speed falls below an internal limit (called Zero
Speed), the speed controller is switched off. The 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 the actual motor speed falls below an internal limit (called Zero
Speed), the zero speed function activates. During the delay the
functions keeps the speed controller live: the inverter modulates,
motor is magnetized, and the drive is ready for a quick start.
0.0…60.0 s Delay Time 10 = 1 s
21.11 E-STOP COAST DLY Time allowed for the drive to stop after an e-stop command is received
before an internal coast stop is commanded.
0…100 s Setting range. 10 = 1 s
22 ACCEL/DECEL
Acceleration and deceleration times. See section Acceleration and
deceleration ramps on page 35.
22.01 ACC/DEC 1/2 SEL Selects the active acceleration / deceleration time pair.
ACC/DEC 1 Acceleration time 1 and deceleration time 1 are used. See 22.02
ACCEL TIME 1 and 22.03 DECEL TIME 1.
1
ACC/DEC 2 Acceleration time 2 and deceleration time 2 are used. See 22.04
ACCEL TIME 2 and 22.05 DECEL TIME 2.
2
DI2 Acceleration/Deceleration time pair selection through digital input DI2.
0 = Acceleration time 1 and deceleration time 1 are in use.
1 = Acceleration time 2 and deceleration time 2 are in use.
3
DI3 See selection DI2. 4
DI4 See selection DI2. 5
DI5 See Selection DI2. 6
DI6 See selection DI2. 7
DI7 See selection DI2. 8
DI8 See selection DI2. 9
DI9 See selection DI2. 10
DI10 See selection DI2. 11
DI11 See selection DI2. 12
DI12 See selection DI2. 13
No. Name/Value Description FbEq
No Zero Speed Delay
Speed Controller
switched off: Motor
coasts to stop
Zero Speed
Time
Speed
With Zero Speed Delay
Speed Controller remains
Zero Speed
Time
Speed
live. Motor is decelerated
to true 0 speed
Delay
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