AuCom EMX4i, Руководство пользователя, Страница: 53 / 126

OPERATION
52
EMX4i User Manual 710-14888-00C
• Set parameter 2C
Initial Current
to 100%, parameter 2D
Current Limit
to
500% and set the ramp time as required (parameter 2B
Start Ramp
Time
).
3
1
2
6
5
4
09294.
B
1:
Initial Current
(parameter 2C)
2:
Current Limit
(parameter 2D)
3:
Start Ramp Time
(parameter 2B)
4: Full voltage
5: Motor 1 current
6: Motor 2 current
Time
Adaptive Control for Starting
In an adaptive control soft start, the EMX4i adjusts the current in order to start the
motor within a specified time and using a selected acceleration profile.
NOTE
The EMX4i will apply the current limit on all soft starts, including adaptive
control. If the current limit is too low or the start ramp time (parameter 2B)
is too short, the motor may not start successfully.
Sp
eed
0
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0
4
8
2
7
.C
1
2
3
4
Adaptive Start Profile
(parameter 2E):
1. Early Acceleration
2. Constant Acceleration
3. Late Acceleration
4.
Start Ramp Time
(parameter 2B)
Time
• Fine-tuning Adaptive Control
If the motor does not start or stop smoothly, adjust the adaptive control gain
(parameter 2L). The gain setting determines how much the EMX4i will adjust future
adaptive control starts and stops, based on information from the previous start. The
gain setting affects both starting and stopping performance.
• If the motor accelerates or decelerates too quickly at the end of a start or
stop, increase the gain setting by 5%~10%.
• If the motor speed fluctuates during starting or stopping, decrease the
gain setting slightly.
NOTE
The EMX4i tunes Adaptive Control to match the motor. Changing the
following parameters will reset Adaptive Control and the first start/stop
cycle will use constant current start/timed voltage ramp stop: 1B
Motor Full
Load Current
, 2D
Current Limit
, 2L
Adaptive Control Gain
.