Application Guide

SAG582140001 System Application Guide
Issue AN, June 4, 2014 Spec. No. 582140001 (Model 801
NLDB, 801NLEB, 801NL-B)
Page 78 of 115
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4. RECTIFIER MODULE (MODEL R48-5800L, SPEC. NO. 1R485800L)
4.1 DC Output Ratings
4.1.1 Voltage: Nominal -48 volts DC, Positive Ground.
(A) Without Battery Charge Temperature Compensation: Float voltage is adjustable from
47.00 to 58.00 volts DC. Test/equalize voltage is adjustable from 45.00 to 58.00 volts DC.
Adjustment is made via the MCA. Both float and test/equalize voltages are factory set at
52.00 volts, unless otherwise specified. The output voltage temperature coefficient (1/°C)
does not exceed 0.01% per degree centigrade from 0°C to +40°C.
(B) With Battery Charge Digital Temperature Compensation Probe: With an optional battery
charge digital temperature compensation probe installed, the MCA automatically increases
or decreases the output voltage as battery ambient temperature decreases or increases,
respectively. Float voltage is factory set at approximately 54.48 volts at 25°C battery
ambient. The float and test/equalize voltage range is the same as without battery charge
temperature compensation. Using battery and equipment manufacturers’ recommendations,
the user selects the following temperature compensation curve parameters via the MCA.
Refer to "Typical Float Charge Thermal Characteristics Using Optional Battery Charge
Digital Temperature Compensation Probe" in Battery Charge Temperature Compensation
Probe for Digital Compensation under ACCESSORY DESCRIPTIONS.
(1) The temperature compensation slope in volts/°C. Adjustable from zero to 200
millivolts/°C. Adjustment is made via the MCA. Factory set at 0V/°C (DIGITAL TC
OFF).
(2) The maximum voltage limit in volts DC. Adjustable from float up to 58.5 volts DC, but
automatically limited to one volt below the High Voltage Shutdown setting. Adjustment
is made via the MCA. Factory set at 56.5 volts DC.
(3) The minimum voltage limit in volts DC. Adjustable from float down to 44 volts DC.
Adjustment is made via the MCA. Factory set at 50.0 volts DC.
4.1.2 Current: One hundred amperes (100A) per Rectifier Module.
4.1.3 Output Power: 5800W @ Vout > 48VDC.
4.1.4 Output Characteristics: The relationship between output voltage and current is summarized in
the following table and depicted graphically in the following illustration.
Output
Power
Output
Current
Output
Voltage
5800 W
100.0 A
58 VDC
5800 W
121.0 A
48 VDC