6/12
ASAC-0
4
Adjustments
15758.
A
1
3
1
Initial Start Voltage
2
Start Ramp Time
3
Stop Ramp Time
1 Initial Start Voltage
Select the initial start voltage (A).
Application
Initial Start Voltage -
Suggested setting
Centrifugal Pump
50%
Submersible Pump
60%
Screw Compressor
Conveyor
70%
Crusher
Fan
Other applications
2 Start Ramp Time
Select the start ramp time (B).
The start ramp defines how long the soft starter will take to increase voltage from
the initial start voltage to full voltage.
The start ramp time does not control the time the motor will take to reach full
speed.
1.
Set the start ramp time to 20 seconds.
2.
Set the initial start voltage as required for the application.
3.
Attach a current monitoring device to output T1.
4.
Start the motor under normal load conditions. Record the time required for
the measured current to fall to (or below) the motor's rated full load current
(t
1
) then stop the motor.
5.
Set start ramp time = t
1
.
NOTE
The start ramp time must be long enough for the motor to reach full
speed before the soft starter enters bypass mode.
3 Stop Ramp Time
Select the soft stop ramp time (C).
Soft stop extends the time soft starter takes to reduce voltage to zero.
The ramp time does not control the time the motor will take to stop completely.
Summary of Contents for ASAC-0
Page 12: ...12 12 ASAC 0...
