SENS EnerGenius® DC Wallbox Technical Manual
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relay assignments. See Table 8 for typical alarm relay assignments. The relays can be configured to be
latching or non-latching with adjustable delays using the SENS Setup Utility.
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
) or the SENS Setup Utility. See section
alarm definitions.
8.3.
LCD Panel
A two line by twenty-character LCD is included with every charger and provides precision digital AC and
DC ammeters and voltmeters as well as information about input, output, charging status and alarms. The
voltmeters are accurate to +1% and the ammeters are accurate to +1%. The display is readable with or
without ambient lighting and operates automatically, requiring no operator intervention.
The LCD is fully operational from -20°C to +50°C. It may temporarily become unreadable below -20°C but
should recover as temperature increases. LCD life is reduced with sustained operation above 65°C.
8.4.
Alarm Definitions
See Table 11 for a description of LED indicator activity. Unless noted otherwise, the following alarms are
displayed on the LCD panel.
8.4.1.
AC Line Failure
Indicates AC input voltage is not detected or is outside of the allowed 188-528VAC range.
Activates solid red AC LED. When this alarm is assigned to a relay contact AC LINE FAIL will cause
the assigned relay to change to the Failed state after the time delay.
8.4.2.
High DC Voltage
Indicates DC output voltage is above the High DC Voltage factory alarm setpoint (see Table 12) or
the configured level if setpoint is adjusted using keypad or SENS Setup Utility. Activates solid
yellow DC LED. When this alarm is assigned to a relay contact HIGH DC VOLTAGE will cause the
assigned relay to change to the Failed state after the time delay.
Table 12
–
Factory High DC Setpoints
Configuration Code*
Battery Type
High DC Setpoint
(V / Cell)
GEN
AGM
2.667
FLA
2.667
NCD
2.667
HCB
2.667
MAR
VRLA
2.440
AGM
2.470
NCD
2.667
NGN
VRLA
2.440
AGM
2.470
NCD
2.667
PSP
N/A
2.200
*Configuration Code displayed on charger label
8.4.3.
Battery on Discharge
Indicates battery is beginning to discharge and DC output voltage is below Battery Discharge
Voltage factory alarm setpoint (see Table 13) or the configured level if setpoint is adjusted using
keypad or SENS Setup Utility. The BATTERY DISCHARGING alarm is the first to trigger of three low
output voltage alarms and is followed by LOW DC and then END OF DISCHARGE. Alarm setpoint
must be set higher than LOW DC and END OF DISCHARGE alarms. Activates solid yellow DC LED.
When this alarm is assigned to a relay contact BATTERY DISCHARGING will cause the assigned
