57
S280-77-4
!
SAFETY
FOR LIFE
Switch Mode (cont’d)
Security
Limits
Access
Factory
Code
Write
Read
Scroll
High
Low
Incr
Parameter
Settings
192
2
0
YES
1600
50
1
Switch Mode Alternate Minimum
100
Target Sensing - Phase
192
2
0
YES
800
5
1
Switch Mode Alternate Minimum
50
Target Sensing - Ground
•
Applicable to controls with CPU Firmware versions
8.XX, 11.XX, and 12.XX only.
•
Alternate minimum target sensing is set for both
phase and ground through a range of settings based
on the recloser’s CT ratio.
CT ratio 500:1
allows a range from 25 to 800 A
phase and 2 to 400 A ground.
CT ratio 1000:1
allows a range from 50 to 1600 A
phase and 5 to 800 A ground.
CT ratio 2000:1
allows a range from 100 to 2400 A
phase and 10 to 1600 A ground.
•
All values are adjusted in increments of one.
•
The control accepts only the values within the limits
preset in the control. Attempts to enter other values
results in a LO/HI message.
•
Use the PHASE/GROUND key to select phase and
ground.