LS Susol Series - Relay Setting Display Navigation

Display Button Contents
If pressing a Menu button once from its normal Measurement Display will switch to the
screen that displays relay setting values. An initial screen of Measurement Setting
Display is arranged for long-time delay current setting, and other setting values can be
seen by pressing Up/Down cursor.
If pressing ‘Up cursor’ once from the Relay setting Display, the setting value of
long-time tripping delay will be displayed.
If pressing ‘Up cursor’ two times on the Relay setting display, the setting value of
short-time tripping delay will be displayed
If pressing ‘Up cursor’ three times on the Relay setting Display, the setting time of
short- time tripping delay will be displayed
At this time, one larger value than the initial one will be displayed because LSB of time
setting value is set in case of l2t is On.
For example, if it is of l2t 0.400sec on setting, 0.401 will be displayed
If pressing ‘Up cursor’ four times on the Relay setting Display, Instantaneous pick up
setting value will be displayed.
If pressing ‘Up cursor’ five times on the Relay setting Display, the setting value of
Ground-fault pickup will be displayed.
If pressing ‘Up cursor’ six times on the Relay setting Display, the setting value
of Ground- fault tripping delay will be displayed.
At this time, one larger value than the initial one will be displayed because
LSB of time setting value is set in case of l2t is On. For example, if it is of l2t
0.400sec on setting, 0.401 will be displayed
If pressing ‘Up cursor’ seven times on the Relay setting Display, the setting current
of ground fault will be displayed.
At this time, the 10~100% of In will be displayed and other values out of this range will
be indicated as “_ _ _ _”
M
M
M
M
x 2
x 3
M
x 4
x 1
M
x 5
M
x 6
M
x 7
Relay setting Display
Long-time
current
setting
Long-time
tripping
delay
Short-time
pickup
Short-time
tripping
delay
Instantane
ous pickup
Ground
-fault
pickup
Ground-
fault
tripping
delay
5. Relay Setting Display– Long-time Delay, Short-time Delay
Long-time
set current
delay time
short-time
set current
delay time
set current
Instantaneous
ground fault
tripping delay
set current
measuring
K. The operation of Trip unit
34
Ground-
fault
measuring
current