Using a PT Controller: Setup
Page 122
©
2017 Sensata Technologies
Max Chg Rate
– Sets the maximum charge amperage allowed to charge the batteries
during the CC/CV charge stage. The range of settings (20-990 ADC) are 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:
Rate = 100%
Range:
0-100%
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
Set
Max Charge Amps
setting instead of the PT controller’s current (shown under
METER: 07E To Batt Now –
Amps
)—as it is more accurate (+/- .1 ADC).
CV Chg Volts
– Sets the voltage level at which the charger will hold the batteries during
the Constant Voltage stage.
Default:
13.8 VDC (12v), 27.6 VDC (24v), 55.2 VDC (48v)
Range:
12.0-16.0 VDC (12v), 24.0-32.0 VDC (24v), 48.0-64.0 VDC (48v)
¤ Set
CV Chg Done
–
These selections determine when the Constant Voltage stage of
charging (displayed as “
Absorb Charging
”) is
fi
nished. If using the
Hold CV Chg VDC
setting,
the battery voltage is held at the
Set CV Charge Volts
setting. If using the
CV Chg Done
Time
or
CV Chg Done Amps
selections, once the Constant Voltage charge stage is
fi
nished,
it transitions to a Silent charge stage (displayed as “
Float Charging
”). After entering the
Silent charge stage, the charger automatically stops charging, but is still actively monitoring
the battery voltage. The charger will remain “Silent” until the battery voltage drops to the
Set Recharge Volts
setting, at which time the charger will start another Constant Current/
Constant Voltage charge cycle (see Figure 12-1).
Default:
Time
Range:
Time, Amps, Hold CV Chg VDC
* Set CV Charge Done Time
– This setting determines how long the charger holds
the battery voltage at the
CV Charge Volts
setting—based on a set time period. When
using time, the battery bank size typically determines the length of the
CV Chg Done
Time
setting. The larger the battery bank, the longer the time needed to ensure fully
charged batteries. If the setting is 0.0 hrs, the charger transitions to Silent charge stage
immediately after the charge voltage setting has been reached. If the setting is from 0.1
to 25.5 hrs, the charger transitions to the Silent charge stage after the battery voltage
has been at the charge voltage setting for the selected time. Use Table 3-2 to assist in
selecting the
CV Chg Done Time
setting based on the AHr capacity of your battery bank.
Note:
After choosing
Set CV Charge Done Time
, the
Set Max CC/CV Char Time
and
Set DC
Volts to Recharge
settings must be determined (see next page).
Default:
2.0 Hrs
Range:
0.1-25.5 Hrs
* Set CV Charge Done Amps
– This setting—which requires a battery monitor to be
installed—determines how long the charger holds the battery voltage at the
CV Charge
Volts
setting—based on a minimum current setting (also known as “return amps”). During
the Constant Voltage charge mode, as the battery charges, the current from the charger
slowly decreases. When this current decreases below the
CV Chg Done Amps
setting, the
charger transitions to the Silent charge stage. Most battery manufacturers recommend
taking approximately 5% of the total battery bank size, and consider the battery totally
charged when the charger’s return amps drops to this level. Check with your battery
manufacturer to
fi
nd out what the correct return amp settings are for your batteries.
Note:
After choosing
Set CV Charge Done Amps
, the
Set Max CC/CV Char Time
and
Set DC
Volts to Recharge
settings must be determined (see next page).
Default:
20 ADC
Range:
0-250 ADC
Содержание ME-ARTR
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