©
2017 Sensata Technologies
Page 58
Operation
4.2.2
Charge Status Indicators
The charge status LED indicators on the front panel indicate the charge status of the controller.
The table below describes the charge stage of the controller and the charger operation—depending
on what the charge status LED’s are doing.
Table 4-1, Charge Status LED Indicators
BULK
(blue)
ABSORB
(yellow)
FLOAT
(green)
Description
OFF
OFF
OFF
Charging Off
- the controller is either sleeping (nighttime), the
PV is turned off, or there is a controller fault.
ON
OFF
OFF
Bulk charge stage
- the controller is in the Bulk charge stage,
providing maximum current from the PV to the battery.
Blink
OFF
OFF
Bulk charge stage
(power limited
1
)
- the controller is in the
Bulk charge stage, but current is being limited to the battery.
OFF
ON
OFF
Absorb charge stage
- the controller is in the Absorb charge
stage, regulating the current from the PV to maintain the battery
at the Absorb target voltage
2
.
OFF
Blink
OFF
Absorb charge stage
(power limited
1
)
- the controller is in the
Absorb charge stage, but current is being limited to the battery.
OFF
OFF
ON
Float charge stage
- the controller is in the Float charge stage,
regulating the current from the PV to maintain the battery at
the Absorb target voltage
2
.
OFF
OFF
Blink
Float charge stage
(power limited
1
)
- the controller is in the
Float charge stage, but current is being limited to the battery.
ON
(1st -
2 sec)
ON
(2nd -
2 sec)
ON
(3rd -
2 sec)
Equalize charge stage
- the controller is in the equalization
charge mode, regulating the current from the PV to maintain
the battery at the Equalize target voltage
2
.
Note:
Each charge
status indicator is on for two seconds in sequence.
Blink
(1st -
2 sec)
Blink
(2nd -
2 sec)
Blink
(3rd -
2 sec)
Equalize charge stage
(power limited
1
)
- the controller is in
the battery equalization charge stage, current is being limited
to the battery.
Note:
Each charge status indicator blinks for
two seconds, one after another in sequence.
Note 1:
Power Limited - When the controller is limiting power to the battery by backing off
charging (from high temp, etc.,), the active charge stage LED will blink every second. See Section
4.2.3 to view the Power Status Codes (P03 - P05) and determine the reason for the limited power.
Note 2:
Target Voltage - The temperature compensated voltage regulation setpoint. The battery
will be regulated to the voltage setting determined by the active charge stage (i.e., Absorb,
Float, or Equalize) and the Battery Type DIP switch setting; and includes any voltage increase or
decrease based on the temperature around the BTS.
Figure 4-3, Charge Status Indicators
Charge Status
Indicators