Automationdirect.com Stellar SR44, User Manual

Page: 128 / 238

Chapter 5: Keypad Menu Items and Parameters
5.4.11 – ‘Parameters’ Menu (continued)
Reference PF
Range: 0 to 146.76 degrees Default: 146.76º Scaling: 0.57554 Type: R
‘Reference PF’ shows the Power Factor Angle that the SR44 has calculated as the target for the
optimizing control loop. (Refer to Ch 3.6 for PF degrees-to-ratio conversion.)
«•» This parameter is not fully functional in Bypass Operation unless a user-supplied external
current transformer is installed. (Refer to P18/B2, ‘Auto Bypass’.)
Internal PF
Range: 0 to 146.76 degrees Default: 146.76º Scaling: 0.57554 Type: R
‘Internal PF’ shows the Power Factor Angle of the load.
(Refer to Ch 3.6 for PF degrees-to-ratio conversion.)
«•» This parameter is not available in Bypass Operation unless a user-supplied external current
transformer is installed. (Refer to P18/B2, ‘Auto Bypass’.)
Delay Angle
Range: 0 to 146.76 degrees Default: 146.76º Scaling: 0.57554 Type: R
‘Firing Delay Angle’ shows the firing delay angle (thyristor off time).
«•» This parameter is not available in Bypass Operation unless a user-supplied external current
transformer is installed. (Refer to P18/B2, ‘Auto Bypass’.)
Max Angle
Range: 17.27 to 146.76 deg Default: 57.554º Scaling: 0.57554 Type: R
‘Maximum Optimizing Delay Angle’ shows the maximum allowed Firing Delay Angle during
optimizing. (The Optimize function reduces energy consumption by reducing voltage, but the
system also senses motor conditions and automatically adjusts the maximum delay angle by which
the voltage can be reduced without allowing the motor to stall.)
«•» This parameter is not fully functional in Bypass Operation unless a user-supplied external
current transformer is installed. (Refer to P18/B2, ‘Auto Bypass’.)
Rated Amps (hundreds)
Range: 0 to 3000 amps Default: 0A Scaling: 100 Type: R/W
Unit’s Rated Current is stored in two bytes; parameters 24 & 25. Parameter 24 holds the number
of hundreds. Parameter 25 holds the number of units. These parameters should not be changed,
since they go hand-in-hand with the burden resistors installed to the board.
Rated Amps
Range: 1 to 99 amps Default: 5A Scaling: 1 Type: R/W
(Refer to P-24 for explanation.)
Current
Range: 0 to 7.9688 Amps Default: 0A Scaling: 0.03125 Type: R
‘Running Current’ displays the current that the motor is taking, as monitored in one phase. This is
the source parameter for the Overload, Current Limit, Shearpin, Under Current Trip, etc. The
divisor is 32, and the multiplier is the rated current of the unit.
«•» This parameter is not available in Bypass Operation unless a user-supplied external current
transformer is installed. (Refer to P18/B2, ‘Auto Bypass’.)
P-20
P-21
P-22
P-23
P-24
P-25
P-26
SR44 Series Soft Starter User Manual
1st Ed, Rev B 07/31/2019
5–54