8 S&C Instruction Sheet 1041-540
Installation
Battery Low LED
This LED is off when the battery system is working normally and the battery is charged.
The LED becomes lit when the battery power level drops below the
Battery Voltage
Low
value on the
TROUBLESHOOTING: Battery System
screen. It is normal for this LED
to be ON when the switch control is operating on battery power and the normal battery
carryover period is nearly over. If this LED is lit when ac power is on and the battery
normally would contain an adequate charge, the battery may be defective.
The LED blinks during any battery test. The switch control automatically runs the
battery test at scheduled intervals. In addition, a SCADA command or the faceplate
BATTERY TEST/LAMP TEST switch can be used to start a battery test at any time. See
the Battery Test/Lamp Test switch” section on page 9 for more details.
Note:
When replacing a defective battery, initiate a battery test immediately to update
the battery status.
Closed LED
This red LED lights up when the line switch is closed. The LED indicates the sensed
position of the line switch based on the state of the
Closed
status input from the switch.
It also blinks while S
hots-to-Lockout
mode is enabled. Each CLOSED LED provides
information about one line switch.
Trip LED
This yellow LED becomes lit when the switch control trips open the line switch using
automatic logic (
Sectionalizing, Phase Loss Protection
, etc.). It turns off when the
switch is closed. For the normally open switch, the LED also turns off when toggling the
REMOTE/LOCAL switch. Each TRIP LED provides information about one line switch.
If the switch tripped because of phase-loss protection and
Phase Loss Protection
with Automatic Reclose
mode is enabled, the LED blinks while waiting to reclose the
switch. For the normally open switch, the LED also turns off when toggling the REMOTE/
LOCAL switch.
Note:
When reinitializing the switch control using the IntelliLink software, the LED
turns off regardless of whether the switch is closed.
Open LED
This green LED becomes lit when the line switch is open. The LED indicates the sensed
position of the line switch based on the state of the
Open
status input from the switch.
Each OPEN LED provides information about one line switch.
Local LED
This LED is lit when remote (SCADA) operation of the switch control is blocked and
local operation is allowed. The LED is off when local operation is blocked and remote
operation is allowed.
Automatic Operation Enabled LED
This LED is lit when automatic operation of the switch control is enabled.
CAUTION
If automatic operation is enabled, the
Automatic Control logic may trip the switch
regardless of the state of the REMOTE/LOCAL switch .
Automatic Operation Disabled LED
This LED is lit when automatic operation of the switch control is disabled.
