SENS MicroGenius S2/S4 Technical Manual
25
Table 11 – LED Definitions
AC LED
DC LED
Meaning
OFF
OFF
AC and DC not applied or charger failed or
alarm/communications circuit board cannot
communicate with main circuit board
*SOLID GREEN
SOLID GREEN
AC good, DC good, in Float Mode
SOLID GREEN
FLASHING GREEN
AC good, in Dynamic Boost Mode
*SOLID GREEN
FLASHING 2X GREEN
AC good, DC in current limit (max charge)
*SOLID GREEN
FLASH LONG-SHORT GREEN AC good, HELIX Eco-Float mode
*SOLID GREEN
FLASH LONG-2X SHORT GREEN AC good, HELIX Refresh Charge mode
*SOLID GREEN
FLASH LONG-SHORT YELLOW AC good, battery commissioning mode active
*SOLID GREEN
FAST FLASHING GREEN
AC good, battery check in progress
*SOLID GREEN
FAST FLASHING YELLOW
AC good, battery check failure
*SOLID GREEN
SOLID RED
AC good, charger fail or overvoltage shutdown
(charger disabled)
*SOLID GREEN
FLASHING RED/YELLOW
AC good, reverse polarity detected on output
*SOLID GREEN
SOLID YELLOW
AC good, high or low DC voltage (above/below
alarm setpoint)
*SOLID GREEN
FLASHING GREEN/RED
AC good, system DC output good, some individual
charger module(s) in alarm state
*SOLID GREEN
FLASHING YELLOW
AC good, low incompatible battery error (charger
disabled)
*SOLID GREEN
FLASHING GREEN/YELLOW AC good, output limited by high temperature
*SOLID GREEN
DOUBLE FLASH YELLOW
AC good, load share fail
*SOLID GREEN
DOUBLE FLASH RED
AC good, load sharing DC negative connection
open or load sharing charger address fault
SOLID RED
SOLID GREEN
AC fail, DC voltage good
SOLID RED
SOLID YELLOW
AC fail, high or low DC voltage (above/below
alarm setpoint)
SOLID RED
SOLID RED
AC fail, charger fail or overvoltage shutdown
(charger disabled)
SOLID RED
FLASHING YELLOW
AC fail, low incompatible battery error (charger
disabled)
ALTERNATING FLASHING YELLOW
Illegal jumper configuration
ALTERNATING FLASHING RED
Missing or invalid code (boot load required)
ALTERNATING FLASHING GREEN
Charger starting up
*AC LED will flash green when charger is in ultracapacitor mode.
8.2.
Individual Alarm Relay Contacts
The alarm/communications circuit board offers five alarm discrete Form C contacts. The Form C relay
contacts change state when alarms are activated. Alarm relay assignments are custom configurable to
any of the alarm functions listed in section
8.4
. See charger inside cover label for original factory alarm
relay assignments. See Tables 7-9 for typical alarm relay assignments.
Relays will change state for an alarm on any output on chargers with multiple outputs. The front panel
LCD will indicate which output is in an alarm state. Alarm setpoints are configured separately for each
output using the keypad.
By default, the relay contacts change state 30 seconds after the onset of a fault. The relay delay is
configurable using the front panel keypad (see section
9.10
) or the SENS Setup Utility. See section
8.4
for
