3.4
The Dip Switch , Set-Button and Reset button functions
The dip switch, set buttons and reset button are used for adjusting the PV Charge Controller
Settings (see Section 3.4.1 and 3.4.2)
( * Open the Side door, you can see the dip switch & set buttons.)
3.4.1 Adjust the PV Charge Controller Settings
Factory Preset
The following table shows the factory preset values of the PV Charge Controller :
Bulk Voltage.................................................. 14.3V
Float Voltage.................................................. 13.5V
Low Voltage Disconnect................................ 11.5V
Low Voltage Reconnect................................. 12.5V
Night Light Mode Option............................... Off (refer to Table 5 in Section 4.3.3)
Table 3 Preset values of the adjustable parameters
The preset Bulk and Float Setpoints are for typical Sealed Gel-type Lead Acid Battery only.
For typical wet-type Lead Acid Battery, set Bulk setpoint to 14.8V and Float setpoint to 13.5V.
Please refer to battery manufacturer’s specific recommended values.
How to adjust the Bulk, Float Charge Voltage, LVD, LVR and Night Light Mode
1. First take out all the connections to the PV controller except those to battery.
2. Push up the slide cover at the right side of the PV controller.
3. Push up all three DIP Switches to OFF position.
4. Disconnect the battery negative terminal at the controller.
5. Press and hold the Reset Button and reconnect the battery negative terminal again.
6. After 3 to 5 seconds release the Reset Button and note the LCD shows “Float V “
7. The controller is now in Set Mode , short presses of the Reset Button show as in following
cyclic order with preset values :
“FLOAT CH: , LVD , LVR , L OPTION:, Bulk CH , FLOAT CH
”
8. Press the Set Button 1 and 2 to adjust the desired setting.
9. When the desired settings are done , double check all settings by pressing the Preset Button.
10. To store the new settings , push down the Dip Switch 2 to on position and take note of the
LCD displays ”INITIALIZATION…. “until one complete cycle.
Figure 5
P.5
Figure 4