Kisae DMT1230, Руководство пользователя

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REV D Page 10
6. UNIT OPERATION
Unit ON/OFF
A Unit ON/OFF switch is located at the DC Input/Output panel of the unit. Switch to ON position to
activate the charger and switch to OFF position to turn the unit off when not in use.
Understanding the Charging Mechanism
The Charger is powered by the battery connected to House Battery (CH1). The unit requires a
minimum of 8Vdc to operate. The unit display will turn off automatically to save power when the
two Input channels CH2 and CH3 are out of operating range.
Operating from an Alternator/Start Battery (CH3)
Normal Operation
Alternator/Start Battery (CH3)
12V INPUT Source 24V INPUT Source
Input Voltage Range 10.5V
– 16.0V
21.0
– 32.0V
Normal Start-Up Voltage (Note A) > 13.2V > 26.4V
Normal Under Voltage Recovery Voltage (Note A) > 12.8V > 25.6V
Control Terminal > 10.5V forces CH3 input to the Low Start-Up and Low-
Under Voltage recovery settings.
Low Start-Up Voltage (using Control Terminal or Manual
Over-ride setting) (Note B) > 12.3V > 24.6V
Low Under Voltage Recovery Voltage (Note B) > 12.0V > 24.0V
De-Rated Voltage (with load) (Note C) 11.5V 23.0V
Under Voltage Shutdown (with load) 10.5V 21V
Over Voltage Shutdown 16.0V 32V
Over Voltage Recovery 15.5V 31V
Input Battery System Reset Voltage (Note D) < 7V < 7V
Maximum Input Current (CH3) DMT1230/2430 : 30A
DMT1250 : 50A
DMT1230/2430 : 30A
DMT1250 : 50A
Note A: When the battery is charging through CH3 with normal operation (not through either manual or automatic override
setting), the charger will charge for 3 minutes, it will then rest for 5 seconds to verify the CH3 Input voltage.
During the 5 seconds rest period, if the measured voltage is > Normal Under Voltage Recovery Voltage (> 12.8Vdc on a
12V Input system or > 25.6Vdc on a 24V Input system), the unit will continue the charging cycle through CH3.
If the measured voltage on CH3 is < Normal Under Voltage Recovery Voltage (< 12.8Vdc on a 12V Input system or <
25.6Vdc on a 24V Input system), the unit will switch back to charge from CH2 (PV) until CH3 returns to Normal Start-Up
Voltage (13.2V on a 12V Input System and 26.4V on a 24V Input system).
Also, during the 3 minutes charging process, if the measured terminal voltage drops below the Under Voltage de-rate
voltage (11.5V for a 12V Input system, 23V for a 24V Input system), the charger will start to de-rate the output current. This
function is used to compensate for the use of long or thin wire between the Input Battery System and the unit terminals. If
the input voltage continues to drop below the Under-Voltage Shutdown Voltage (10.5V for a 12V Input system and 21V for
a 24V Input system), the charging process will terminate and the unit will switch back to charge from CH2 (PV). It will only
switch back to CH3 if the CH3 voltage returns to 13.2V on a 12V Input system or 26.4V on a 24V Input system.
Note B: When the unit has activated the battery charging process using the Control terminal or using the Manual Override
through the unit setting, the input voltage specification is reduced. It has the same charging process but with the Low Start-
Up Voltage set to > 12.3V (from 13.2V) on a 12V Input system and > 24.6V (from 26.4V) on a 24V Input system. This feature
is designed to be used for vehicles fitted w
ith “Smart Alternators”.
If the measured voltage on CH3 is <12.0 Vdc (<24Vdc on a 24V Input system), the unit will disconnect from the vehicle
source and switch back to charge from CH2 (solar if installed) until the CH3 voltage returns to >12.3Vdc on a 12V Input
System (>24.6V on a 24V Input system).
The Low Under Voltage Recovery Voltage is set to > 12V (from 12.8V) on a 12V Input system and > 24V (from 26.4V) on a
24V Input system. During the 5 second rest period, if the input voltage returns above 12V/24V, it will continue the charging
process and if the input voltage does not return to > 12V/24V, it will switch back to charge from the Solar - CH2 (if connected)
until the Start - CH3 input has returned to the Low Start-Up voltage of 12.3V on a 12V Input system and 24.6V on a 24V Input
system.
Note C: During the 3 minutes charging process, if the measured terminal voltage drops to below the Under Voltage de-rated
limit (11.5V for a 12V Input system, 23V for a 24V Input system), the charger will start to de-rate the charger current. This
function is used to compensate for the use of long or thin cable between the Input Battery System and the unit terminals. If
the voltage continues to drop to below the Under-Voltage Shutdown limit of (10.5V for a 12V Input system and 21V for a 24V
Input system), the charging process will terminate and the unit will switch back to charge from CH2 (Solar if installed). It will
only switch back to CH3 if the CH3 voltage returns to 13.2V on a 12V Input system and 26.4V on a 24V Input system.
Note D: The CH3 DC Input (Alternator/Start Battery Input) can accept a 12V or 24V Input battery with an alternator system.
When the unit is first connected, the unit will measure the input voltage. If the voltage is > 17V, it will assume it is connected
to a 24V Input Battery/Alternator system. If the voltage detect is < 17V, it will assume it is connected to a 12V Input
Battery/Alternator system. Once detected, it will store this into the microprocessor and it will only be erased if the Input
battery is disconnected or if the measured Input Voltage drops to < 7Vdc.
Operating from an PV Solar Array/ Panel (CH2)
Normal Operation PV Solar Array/Panel (CH2)
PV Input Voltage Range 14.5 - 50V
PV Input Under Voltage Shutdown < 14.5V
PV Input Under Voltage Recovery 15.0V
PV Input Over Voltage Shutdown > 50.0V
PV Input Over Voltage Recovery
≤ 48.0V
PV Charging Mechanism MPPT type (approx. 97% efficiency)
Maximum Input Current 30A (*Note)