Vertiv R48-500 User manual

Rectifier Module
User Manual
Specification Number: 1R48500, 1R481000
Model Number: R48-500, R48-1000

Vertiv™ Rectifier Module User Manual
Vertiv™ Rectifier Module User Manual
The information contained in this document is subject to change without
notice and may not be suitable for all applications. While every precaution has
been taken to ensure the accuracy and completeness of this document, Vertiv
assumes no responsibility and disclaims all liability for damages resulting from
use of this information or for any errors or omissions. Refer to other local
practices or building codes as applicable for the correct methods, tools, and
materials to be used in performing procedures not specifically described in
this document.
The products covered by this instruction manual are manufactured and/or
sold by Vertiv. This document is the property of Vertiv and contains
confidential and proprietary information owned by Vertiv. Any copying, use or
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Names of companies and products are trademarks or registered trademarks of
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names should be directed to the original manufacturer.
Technical Support Site
If you encounter any installation or operational issues with your product, check the pertinent section of this
manual to see if the issue can be resolved by following outlined procedures.
Visit https://www.vertiv.com/en-us/support/ for additional assistance.

Vertiv™ Rectifier Module User Manual
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iii
TABLE OF CONTENTS
Admonishments Used in this Document.............................................................................................................................iv
Important Safety Instructions..................................................................................................................................................v
Safety Admonishments Definitions ..........................................................................................................................................................................................................................v
Safety and Regulatory Statements...........................................................................................................................................................................................................................v
Déclarations de Sécurité et de Réglementation...........................................................................................................................................................................................v
1Introduction...............................................................................................................................................................................1
1.1 Overview.................................................................................................................................................................................................................................................................................1
1.2 Specifications.....................................................................................................................................................................................................................................................................1
2Operation .................................................................................................................................................................................11
2.1 AC Input Protection Device Requirements/Recommendations ..................................................................................................................................... 11
2.2 Local Indicators ............................................................................................................................................................................................................................................................ 11
2.3 Rectifier High Voltage Shutdown and Lockout Restart .........................................................................................................................................................12
2.4 Installing Rectifiers.....................................................................................................................................................................................................................................................12
3Troubleshooting and Repair ............................................................................................................................................13
3.1 Troubleshooting...........................................................................................................................................................................................................................................................13
3.2 Replacement Procedures...................................................................................................................................................................................................................................14

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iv
Admonishments Used in this Document
DANGER!
Warns of a hazard the reader will be exposed to that will likely result
in death or serious injury if not avoided. (ANSI, OSHA)
WARNING!
Warns of a potential hazard the reader may be exposed to that could
result in
death or serious injury if not avoided. This admonition is not used for situations that pose a
risk only to equipment, software, data, or service. (ANSI)
CAUTION!
Warns of a potential hazard the reader may be exposed to that could
result in minor or moderate injury if not avoided. (ANSI, OSHA) This admonition is not
used for situations that pose a risk only to equipment, data, or service, even if such use
appears to
be permitted in some of the applicable standards. (OSHA)
ALERT!
Alerts the reader to an action that must be avoided in order to protect
equipment, software, data, or service. (ISO)
ALERT!
Alerts the reader to an action that must be performed in order to prevent
equipment damage, software corruption, data loss, or service interruption. (ISO)
FIRE SAFETY!
Informs the reader of fire safety information, reminders, precautions,
or policies, or of the locations of fire
-fighting and fire-safety equipment. (ISO)
SAFETY!
Informs the reader of general safety information, reminders, precautions, or
policies not
related to a particular source of hazard or to fire safety. (ISO, ANSI, OSHA)

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v
Important Safety Instructions
Safety Admonishments Definitions
Definitions of the safety admonishments used in this document are listed under “Admonishments Used in this Document” on page iv.
Safety and Regulatory Statements
Refer to Section 4154 (provided with your customer documentation) for Safety and Regulatory Statements.
Déclarations de Sécurité et de Réglementation
Reportez-vous à la Section 4154 (fourni avec les documents de votre client) pour les déclarations de sécurité et de réglementation.

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Vertiv™ Rectifier Module User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
1
1Introduction
1.1 Overview
The rectifiers provide load power, battery float current, and battery recharge current during normal operating conditions. The
rectifiers are a constant power design. The rectifiers are rated at their maximum output power. This means that, within the normal
operating ambient temperature range and input voltage range, the maximum available output power is a constant 500W or 1000W
(depending on rectifier model). Within these ranges, the rectifiers operate in one of three modes, depending upon load demands.
Transition between modes is completely automatic. If ambient temperature rises above or input voltage falls below acceptable values,
rectifiers continue to operate but at derated output power levels.
•Constant Voltage Mode: For any initial output voltage setting from 42 to 58 volts, output voltage remains constant regardless
of load. This is the normal operating condition, in which loads are being supplied and batteries are float charged. Rectifiers
operate in the Constant Voltage Mode unless load increases to the point where the product of load current and output
voltage is approximately 500W or 1000W (depending on rectifier model).
•Constant Power Mode: As load increases above approximately 500W or 1000W (depending on rectifier model) (non-
adjustable), output current continues to increase, but output voltage decreases as required to maintain constant output
power. Rectifiers operate in the Constant Power Mode unless load continues to increase to the point where the current limit
setting is reached.
•Constant Current Mode: If load increases to the current limit setting, output voltage decreases linearly to maintain output
current at the current limit setting.
1.2 Specifications
1.2.1 DC Output Ratings
•Voltage: Nominal -48.0 VDC, Positive Ground.
a) Adjustment Range: The output voltage can be set within the range of -42V to -58V, adjustable via the controller.
•Output Power and Current:
a) R48-500 (1R48500): 500W (10.5A) @ -48 VDC. See Figure 1.1.
b) R48-1000 (1R481000): 1000W (20.9A) @ -48 VDC. See Figure 1.2.
•Power Derating Based on Input Voltage:
a) R48-500 (1R48500): The rectifier can provide maximum rated power (500W) as long as the input voltage is within the
range of 90 to 300 VAC. The relationship between the output power and input voltage is illustrated in Figure 1.3.
b) R48-1000 (1R481000): The rectifier can provide maximum rated power (1000W) as long as the input voltage is within
the range of 176 to 300 VAC. From 176 VAC to 90 VAC, the rectifier will continue to operate, but maximum power is
reduced. The relationship between the output power and input voltage is illustrated in Figure 1.4.
•Power Derating Based on Temperature: The rectifier delivers full power when operating at an ambient temperature of
+45°C (+113°F) or below. Refer to Figure 1.5 or Figure 1.6 to view the relationship between the output power and the
ambient temperature.

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Figure 1.1 Output Voltage vs. Output Current [R48-500 (1R48500)]
Figure 1.2 Output Voltage vs. Output Current [R48-1000 (1R481000)]
Figure 1.3 Power Derating Based on Voltage [R48-500 (1R48500)]
R48-500 Output Voltage vs. Output Current at Max. Power 500W
0
10
20
30
40
50
60
0 2 4 6 8 10 12
For R48-500 Output Current (A)
Output Voltage (V)
R48-1000 Output Voltage vs. Output Current at Max. Power 1000W
0
10
20
30
40
50
60
5202510150
For R48-1000 Output Current (A)
Output Voltage (V)
R48-500 Output Power vs. Input Voltage at 65℃and 45℃
0
20
40
60
80
100
120
50 100 150 200 250 300 350
For R48-500 Input Voltage (Vac)
% of output power
Rectifier R48-500 65℃
Rectifier R48-500 45℃

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Figure 1.4 Power Derating Based on Voltage [R48-1000 (1R481000)]
Figure 1.5 Power Derating Based on Temperature [R48-500 (1R48500)]
Figure 1.6 Power Derating Based on Temperature [R48-1000 (1R481000)]
R48-1000OutputPowervs. Input Voltageand Vo48V atTemp 45℃
0
20
40
60
80
100
120
0 50 100 150200 250 300 350
For R48-1000 Input Voltage (Vac)
% of output power
R48-500 Output Power vs. Temperature at 176Vac and 90Vac
0
20
40
60
80
100
120
-40 -20 0 20 40 60 80 100
For R48-500 Temperature (℃)
% of output power
Rectifier R48-500 176Vac
Rectifier R48-500 90Vac
R48-1000 Output Power vs. Temperature at 264V Vin 176 Vac
0
20
40
60
80
100
120
-40 -20 0 20 40 60 80 100
For R48-1000 Temperature (℃)
% of output power

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•Regulation:
a) Static: Steady state regulation is ±0.5% as controlled within the rectifier for any and all combinations of load from no
load to full load, input voltage, and input frequency at a constant ambient temperature. The associated system
controller may provide increased regulation.
b) Dynamic: For any step load change within the range of 10% to 90% of full load within 50 microseconds, per Telcordia
GR-947-CORE, the maximum voltage transient will not exceed 5% of the initial steady state voltage within 50±10
microseconds. Recovery to within 1% of the initial steady state voltage does not exceed 4 milliseconds.
•Filtering:
a) Voice Band Noise: Complies with Telcordia GR-947-CORE.
1. Output noise according to Telcordia GR-947-CORE is <32 dBrnC at normal input and full load.
2. Psophometric noise is ≤1 mV at 5% to 100% of rated load.
b) Wide Band Noise: Complies with Telcordia GR-947-CORE.
1. Wideband noise emission is <250 mV peak to peak between 0 Hz – 30 MHz,
and <100 mV rms in any 3 kHz band 10 – 20 MHz.
1.2.2 AC Input Ratings
•Voltage: Nominal 120/208/240 volts AC, single phase, 3-wire, 50/60 Hz, with an operating range of 100 to 250 volts.
Acceptable input frequency range is 45 to 65 Hz.
a) Permitted Variation: 85 to 300 VAC.
•Harmonic Content (THD): ≤5% from 50% to 100% of rated load. Meets EN61000-3-2.
•Inrush Current: Peak does not exceed 1.5 times of the peak value of the maximum steady-state input current at full load,
nominal input voltage, and for any duration of AC input interrupts. Under the above conditions, standard AC distribution
circuit breakers will not trip.
•Typical Input Data (1R48500): 60 Hz input.
a) System output is initially adjusted to 54.48 volts DC as measured at the system sense point at 50% of full load and
nominal input. “Percent of Full Load” refers to percent of 8.62 amperes.