Magnum Energy ME-RTR Router - Manual (Page 41)

Page 33
©
2014 Magnum Energy, Inc.
Setup
□ Max Chg Amps – Sets the maximum amperage allowed to charge the batteries during
the CC/CV charge cycle. This setting is provided to limit the charge current to the battery
bank, which helps prevent battery overheating caused by charging at too high a charge rate.
Default: Max Charge Amps = 200A
Range: 20 – 990 ADC
□ CV Chg Volts – Sets the voltage level at which the charger will hold the batteries during
the Constant Voltage cycle.
Default: CV Chg Volts = 13.8 VDC (12v), 27.6 VDC (24v), 55.2 VDC (48v)
Range: OFF, 12.0-16.0 VDC (12v), 24.0-32.0 VDC (24v), 48.0-64.0 VDC (48v)
Info: If the BMK (Battery Monitor Kit) is connected, the DC amps value determined by
the BMK (under METER: 05C DC Amps-BMK) will be used by the Max Chg Amps setting
instead of the inverter’s DC calculated current (shown under METER: 01B Inv/Chg DC
Amps)—as it is more accurate (+/ – .1 ADC).
CV Charge Done Time, CV Charge Done Amps, or Hold CV Charge Volts selections:
These selections determine when the second stage of charging (Constant Voltage) is fi nished.
If using the CV Charge Done Time or CV Charge Done Amps selections, once the constant voltage
charge cycle is fi nished, it transitions to a Silent charge stage. During the Silent charge mode,
charging is automatically stopped, but battery voltage is still monitored. The charger remains
“Silent” until the battery voltage drops to the Set DC Volts to Recharge setting, at which time
the charger will start another Constant Current/Constant Voltage charge cycle (see Figure 3-12) .
The Hold CV Chg Volts selection holds the battery in the constant voltage charge cycle voltage
at the CV Chg Volts setting indefi nitely (see Figure 3-13).
Default: CV Charge Done Time
□ CV Chg Done Time – The CV Charge Done Time selection is used when a specifi c time
is selected to be the best solution for determining when the batteries are fully charged and
the Constant Voltage stage needs to end.
* Set CV Chg Done Time – This setting determines how long the charger will hold
the battery voltage at the CV Chg Volts setting—based on a set time period. When using
time, the battery bank size will typically determine the length of the CV Charge Done Time
setting. The larger the battery bank, the longer the time needed to ensure a full charge to
the batteries. The charger transitions to the Silent charge mode after the battery voltage has
been at the CV Chg Volts setting for the selected time. Refer to Table 3-2 to assist you in
selecting the CV Charge Done Time setting based on the AHr capacity of your battery bank.
Note: After choosing the Set CV Charge Done Time, the Set Max CC/CV Charge Time and
Set DC Volts to Recharge settings must be determined.
Default: Time = 2.0 Hrs
Range: 0.1-25.5 Hrs
□ CV Chg Done Amps – The CV Charge Done Amps setting is used when the DC amperage
supplied to the batteries (i.e., done amps) determines when the batteries are fully charged
and the Constant Voltage stage needs to end.
◊ Set Battery Type (CC/CV) – The CC/CV selection provides a 2-stage (Constant Cur-
rent/Constant Voltage) charging cycle with an adjustable charge voltage and output current.
Note: CC/CV settings only display if CC/CV has been selected from the 03 Battery Type menu .
Info: If CV/CC has been selected from the 03C Battery Type menu, the following
menus are no longer accessible and display “CC/CV Controlled” when selected: 03D
Absorb Done, 03E Max Charge, 03F Final Charge, 03G Days to remind when to EQ. This
is to prevent charging confl icts that could occur while in the CC/CV profi le.
CAUTION: Whenever the CC/CV battery type is selected, some settings—within menus
that are no longer accessible—are internally linked to the CC/CV settings and can be
automatically changed. Because settings can be automatically changed once CC/CV has
been selected, if a different battery type is selected, then all charge settings must be
reviewed to ensure they are correct for the new battery type selection.