GridSense Line IQ LIQ60, User Manual, Page: 19 / 39

000-2166 Rev 3.0 Franklin Grid Solutions LLC
Page 17 of 37
At the end of the firmware upgrade process, the LIQ-60 will restart.
The LIQ-
60’s LED indicator flash patterns
The LEDs are also used to indicate other operational statuses. The various flash patterns a r e
summarized in Table 1.
Indication LIQ-60 LED Flash patterns Meaning
Line status
Amber LED
(1, 2 or 3 flashes
repeated every
30 sec)
(single) Voltage and Current present.
…
(double) Voltage but no Current.
(triple) No Voltage and no Current.
Fault
detected
(1 red LED
on side of
fault)
Red LED
(1, 2 or 3 flashes
repeated every
10 sec)
(single) FP self-clearing fault sensed.
(double)
FP-SI transient fault sensed
with short interruption.
(triple)
FP-LI permanent fault sensed
with long interruption.
Ready for
installation /
commission-
ing
Both Red LEDs
flash once every
sec.
&
Amber LED
triple flash every
30 sec.
(single)
LIQ-60 awaiting commission.
Auto-commission
will occur
within 1hr of start-up (or r es e t)
if not done manually.
(triple)
Amber LED is indicating LIQ-60
is not sensing Voltage or
Current.
Firmwar
e
upload
Either Amber or
both Red LEDs
(Fast flash, 10Hz)
(very rapid)
Firmware upload into buffer in
progress.
(very rapid)
Error during firmware upload
into buffer.
CPU
upgrade
Amber or all 3
LEDs
(steady)
Firmware transfer from buffer
to flash ROM.
(steady)
LIQ-60 awaiting
Synchronization signal from
LIQ-Gateway.
(All three LIQ-60s on a feeder
get synchronized prior to Power
Factor measurements).
LED Indicator Description
Amber LED
Red LED
Table 1: LIQ-60 indicator LED flashing patterns