2.4. Battery protection system
There is a protection system for the battery that prevents the compressor from operating if the available
voltage becomes too low. The electronic driver determines the stop compressor and restarts the
compressor by detecting the voltage between the input terminals (+) and (-) to protect the different power
supply batteries.
The standard battery protection settings recommended value in Table 3; other voltage can be set by
adjusting the controller terminal (C) and (P) connection resistance (9), the specific value of Table 3.
2.5. Protections and alarms
DL series are electronically protected against a number of possible malfunctions and failures. As shown in
Figure 1:
The controller terminal (+) and (D) can be connected between a 10mA LED (6) for the display fault, LED
anode connected to the controller (+) side, the cathode connected to the controller (D) end.
When the failure occurs, LED every 3 seconds for the cycle, continuous flash in each cycle, according to
different failures flash different times, each flashing for 0.4 seconds, continuous flashing for 3.2 minutes.
The number of specific codes and blinks is shown in Table 4.
10.4 11.7 22.8 24.2
12V Cut-out
(V)
12V Cut-in
(V)
24V Cut-out
(V)
24V Cut-in
(V)
Table 4. Limits of battery protection parameters
Nº of blinks
Fault type
Voltage fault - The input voltage is outside the set range
Fan current fault - fan current output current greater than 1A
Compressor start fault - compressor motor stall or system pressure too large
Compressor minimum speed fault - The compressor is overloaded or the motor speed is too small.
Controller temperature fault - controller housing temperature too high (> 85 ° C)
Controller hardware failure - The controller has detected an abnormal parameter
1
2
3
4
5
6
Table 5. Alarm codification
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