INSTALLATIONS
2-56
2.2.8.7 Accessory terminals
Functions and explanations of the accessory terminal located on the back panel are shown below.
No. Name Description
1 BATT VOLT (+)
2 BATT VOLT (-)
BATT OUT voltage monitor output (max. 1.0 A)
3 BATT CURR (+)
4 BATT CURR (-)
Outputs voltage proportional to the charge and discharge voltage as
an analog value
5 DC OPE Outputs as open collector when AC power is off (max. 24 V, 200 mA)
6 CHG ALARM
Outputs as open collector when a charging alarm occurs
(max. 24 V, 200 mA)
7 BATT LOW VOLT
Outputs as open collector when a low voltage alarm occurs
(max. 24 V, 200 mA)
8 GND GND
9 BATT HI TEMP (+)
10 BATT HI TEMP (-)
Input terminal for the thermal lead switch* signal for high temperature
detection attached to the battery
*35MLR, 40MLR, 45MLR, 50MLR, and 55MLR can be connected
11 BATT LOW TEMP (+)
12 BATT LOW TEMP (-)
Input terminal for the thermal lead switch* signal for low temperature
detection attached to the battery
*5BLR can be connected
2.2.8.8 Other functions (protection circuit)
¾ Charging warning function
When the AC breaker is on and the BATT breaker is off, the FLOAT/EQUAL LED goes out, the
CHG ALARM LED lights, and a buzzer sounds.
* Auto recovery when the BATT breaker is on.
¾ Over voltage detection function
Functions only when charging. When the BATT voltage is +34 V, the connection between the
charging circuit and the battery is automatically broken. Also, the FLOAT/EQUAL LED goes
out, the CHG ALARM LED lights, and a buzzer sounds.
* Recovered by turning the AC breaker off and then on.
¾ Temperature monitoring function 1
When a high temperature of over 60 C is detected on the circuit, the FAN starts cooling.
* The FAN automatically turns off when the temperature decreases.
¾ Temperature monitoring function 2
When a high temperature of over 80 C is detected on the circuit, the charging circuit stops.
Also, the FLOAT/EQUAL LED goes out, the CHG ALARM LED lights, and a buzzer sounds.
* Auto recovery after temperature decreases.
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