Acceleration Ramp Time Setting; Deceleration Ramp Time Setting - WEG SSW-08 Manual Del Usuario

Setting the SSW-08

4.5 ACCELERATION RAMP TIME SETTING

When Soft-Starter SSW-08 is programmed to Voltage Ramp control, this is the voltage increment
ramp time.
When Soft-Starter SSW-08 is programmed to Current Limit control, this time is used as the
maximum starting time, working as a protection against blocked rotors.
4
NOTE!
The programmed acceleration time is not the exact motor acceleration time, but the
time of the voltage ramp or the maximum starting time. The motor acceleration time
depends on the motor characteristics and the load.
Please consider that in cases where the relation of the SSW-08 current and the motor nominal
current is 1.00, the maximum time that the SSW-08 can work with 3 x In is 20 seconds.

4.6 DECELERATION RAMP TIME SETTING

Enables and sets the time of voltage decrease.
This setting should be used only for the deceleration of pumps to reduce the water hammer.
This setting must be made to achieve the best pump performance.
NOTE!
This function is used to lengthen the normal deceleration time of a load and not to
force a lower time than that imposed by the load itself.
28 | SSW-8
Acceleration Ramp
Time Setting Trimpot
Figure 4.5: Acceleration ramp time setting
Deceleration Ramp
Time Setting Trimpot
Figure 4.6: Deceleration ramp time setting