Introduction:
EP30A series controller features maintenance-free, battery temperature compensation, automatic control, resitence to high temperature/hypothermia, small volume and high power density etc. This product can be widely used for solar energy household DC power and intergrated AC power supply system.
Performance:
1. Adopting 32-bit processor. High acurracy in controlling voltage.
2. Serial connection PWM mode. Intelligent 3-section charging control type.
3. Controlled by intelligent micro computer chip; Each charge/discharge parameter is settable; Different occasions are available.
4. All-round protection functions against charging overvoltage, overtemperature, battery undervoltage, wrong connection, overload, shortcircuit, pannels wrong connection, reverse charging in night as well as LED and LCD instruction.
5. More intuitive liquid crystal display.
6. Temperature compensation functions by four principles, no-compensation, enviromental temperature compensation, batteries temperature compensation, automatic compensation and DS18B20 supportable. Compensation way alternated as per sensor’s status.
7. Protection function by password.
8. Supporting RS485/232 communication for remote monitoring.
9. Electricity consumption AH accumulative function including PV generating capacity and load consuption.
10. Alarm clock display function.
Data sheet:
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Model
|
ECV24-30
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ECV36-30
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ECV48-30
|
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Rated voltage (V)
|
DC24
|
DC36
|
DC48
|
|
Max PV moduel power (KWp)
|
0.72
|
1.08
|
1.44
|
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Number of PV array
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1
|
||
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Max current of single PV array (A)
|
30
|
||
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Rated charging current (A)
|
30
|
||
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Rated load current (A)
|
15
|
||
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Floating charging voltage (V)
|
27.4(adjustable)
|
41.1(adjustable)
|
54.8djustable)
|
|
Overvoltage protection voltage (V)
|
30
|
45
|
58
|
|
Enviromental over-temperature protection
|
Exceed 75℃ over-temperature protection act, restart charging at 65℃
|
||
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Batteries over-temperature protection
|
Exceed 75℃, over-temperature protection act, restart charging at 65℃
|
||
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Undervoltage protection voltage (V)
|
21.6
|
32.4
|
43.2
|
|
Undervoltage return voltage (V)
|
24.6
|
36.9
|
49
|
|
Protection voltage at load overvoltage
|
32
|
48
|
65
|
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Recovery voltage at load overvoltage (V)
|
30
|
45
|
60
|
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Over load or short circuit protection
|
Over load protection will start after 60s or 20s of 1.25 or1.5 times the rated current; and ≥2 times protection will cut off load
|
||
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No-load loss (mA)
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≤100
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||
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Charging circuit voltage drop (V)
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≤0.3
|
||
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Discharging circuit voltage drop (V)
|
≤0.15
|
||
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Lines loss compensation voltage (V)
|
0.2 (adjustable)
|
||
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Temperature compensation
|
-5~0mV/℃/2V(adjustable)
|
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Control model
|
PWM charging model
|
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Working temperature (℃)
|
-20~+50
|
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Dimension(L×W×H)(mm)
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179×165×55
|
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Working elevation (m)
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≤5000(if altitude exceeds 1000m, ratings of operation shall be lowered according to standard GB/3859.2)
|
||
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Protection degree
|
IP30
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