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*Note:
The charger limits the input current of CH2 to 30A maximum. If a 12V solar panel is used, the maximum solar input
power is around 500W. You can how
ever “overdrive” the MPPT controller. Please note that doing this is partially an
economic decision. You can install more power than the controller can use and this will contribute to better power
availability. KISAE suggests a total maximum overdrive of 20% (total 600w). The extra solar panel power can compensate
for cloudy (or intermittent sunny) days and around the dawn and sunset of all the days, so as to harvest more solar energy.
Note: Above chart is based on the use of 12V 600W solar panel array.
Understanding the Display function during normal operation
Digital Display
Display
LCD Digital Display with back lighting
Display Info for CH1:
Battery Voltage, Charging Current, Charging Status
Display Info for CH2:
PV Solar Array/Panel Input Voltage
Display Info for CH3:
Alternator/Start Battery Input Voltage
Fault/Warning
Error code E01-E07, Warning A01-02
‘CH3’ Icon Flashing
CH3 >13.2V/12.3V or >26.4/24.6V @ Norm./Prior. mode respect., and not charging from alternator yet
‘CH3’ Icon Solid
Charging from Alternator/Start Battery CH3
‘CH2’ Icon Flashing
CH2 > 14.5V and not charging from solar array
‘CH2’ Icon Solid
Charging from PV Solar Array/Panel CH2
•
During normal operation, the display shows alternately the House Battery Bank Voltage (V),
Charging Current (A) and Charging Stage Status
(‘bul’ = Bulk, ‘Abs’ = Absorption, ‘Ful’ = Float)
of the CH1 output. When the
‘INFO’ button is pressed once, it displays the other channel’s
CH2, CH3 Input voltage.
•
CH3 icon flashes when the input voltage is above the Start-Up Voltage (i.e. >13.2V/12.3V on
12V CH3 battery system, or >26.4/24.6V on 24V CH3 battery system under Normal/Priority
mode respectively), and it is not the charging source of the House Battery bank yet. It will
change to solid when CH3 becomes the charging power source.
•
CH2 icon flashes when the input voltage is above the Flashing Voltage (> 14.5V) and it is not
the source to charge the battery. It will change to solid when CH2 becomes the charging power
source.
•
During normal operation, every time the
‘INFO’ button is pressed once, the display will scroll
through and show
‘CH1’, ‘CH2 & ‘CH3’ voltage for 3 seconds and it will return to the normal
display automatically. If CH2 or CH3 is not connected, it will show 0V.
•
The display will remain ON when either one or both CH2 & CH3 inputs are available. The
display will turn off if CH2 or CH3 is not available for a while (several seconds).
•
During the equalization mode (on flooded battery only), the numerical section on the display will
show a flashing
‘Eq’ indicating the equalization process is in progress and it will not show both
the battery voltage and the charging current.
Understanding the Function Key Icons on Display
CH1 -
Display is showing the House Battery Bank info (charging voltage,
current and status)
CH2 / CH3
-
When displayed in solid means the input power is getting
from the related channel and the other channel will be flashing if it is
available but not charging
V
– The numerical value showing on the display is in voltage (V)
A
– The numerical value showing on the display is in current (A)
Auto
– ‘Silent Mode’ is activated. More details in ‘Button Functions’
Priority
– The CH3 Alternator/Start Battery terminal voltage is high or the
unit is set to
‘Manual Override Mode’. More details in ‘Button Functions’
Mode
- Charging mode setting
(only displayed during unit setting)
Temp
- Temperature setting
(only displayed during unit setting)
Summary of Contents for DMT1230
Page 1: ...Abso DC to DC Battery Charger 12V 30A DMT1230 12V 50A DMT1250 24V 30A DMT2430 Owner s Manual...
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