Automationdirect.com Stellar SR44, User Manual

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Chapter 5: Keypad Menu Items and Parameters
5.4.5 – ‘Advanced’ Menu (continued)
Opt Rate
Range: 4 to 30 Default: 5 Scaling: n/a Type: R/W
‘Optimize Rate’ sets the speed at which the SR44 will reduce the voltage during optimizing.
Some unstable loads benefit from a slower optimizing rate
Op
Range: P121 / B4 Default: Off Scaling: n/a Type: R/W
‘Op’ gains the maximum amount of energy savings on variable loads. For lightly loaded
motors, the soft starter provides energy savings in Energy Optimizing mode. For fully loaded
motors, a bypass contactor provides better energy savings.
• Requires an external user-supplied bypass contactor and current transformer
• Associated with P109 Upper Limit and P110 Lower Limit
When motor is lightly loaded as set in P110, the bypass contactor is de-energized to run the motor
from the soft starter in Energy Optimizing mode. When motor is heavily loaded as set in P109, the
bypass contactor is energized to eliminate the soft starter thyristor losses.
Kick Start
Range: P51 / B0 Default: Off Scaling: n/a Type: R/W
This menu item turns the Kick Start function ‘On’ or’ Off’. The Kick Start applies a short-lived
voltage kick at the beginning of the start ramp to dislodge sticky loads.
Kick Pedestal
Range: 60 to 90 percent Default: 75% Scaling: n/a Type: R/W
‘Kick Pedestal’ provides a short kick of voltage at start of ramp to dislodge sticky load.
Kick Time
Range: 10 to 40 cycles Default: 25 cycles Scaling: n/a Type: R/W
‘Kick Time’ sets the number of cycles for which Kick Ped (P13) is applied, if selected (P51/B0).
Dwell Time
Range: 1 to 255 seconds Default: 5s Scaling: n/a Type: R/W
‘Dwell Time’ provides a period of time following soft-start allowing the load to settle, and to
ensure that it is up to speed, before optimizing commences (if selected).
(P-19)
(P121.B4)
‘Op’ requires an external user-supplied bypass contactor and current transformer.
Refer to Electrical Installation Chapter 2, subsections 2.4.1 & 2.5.2 for details.
(P51.B0)
(P-13)
(P-14)
(P-15)
SR44 Series Soft Starter User Manual
1st Ed, Rev B 07/31/2019
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