Configuration instructions
3.2 Startup class
3RW44 soft starters
22
Manual, 03/2017, NEB535219502000/RS-AB/008
3.2.1
Application examples for normal starting (CLASS 10)
Normal starting CLASS 10 (up to 20 s with 350 % I
n
motor
)
The soft starter rating can be selected to be as high as the rating of the motor implemented.
Application
Conveyor belts Roller
conveyors
Compressor
Small fans
Pump
Hydraulic
pumps
Starting parameters
Voltage ramp
and current
limiting
•
Starting
voltage %
70
60
50
30
30
30
•
Starting
time s
10
10
10
10
10
10
•
Current
limiting
value
Deactivated
Deactivated
4 x I
M
4 x I
M
Deactivated
Deactivated
Torque ramp
•
Starting
torque
60
50
40
20
10
10
•
End torque 150
150
150
150
150
150
•
Starting
time
10
10
10
10
10
10
Breakaway
pulse
Deactivated
(0 ms)
Deactivated
(0 ms)
Deactivated
(0 ms)
Deactivated
(0 ms)
Deactivated
(0 ms)
Deactivated
(0 ms)
Coasting
method
Soft stop
Soft stop
Coasting down Coasting down Pump stop
Coasting down