Vertiv NetSure V200D50 User manual

NetSure™
V200D50 DC Power Retrofit
Installation and User Manual (UM486527803), Revision F
Specification Number: 486527803
Model Number: V200D50

Vertiv |NetSure V200D50 DC Power Retrofit Installation & User Manual (UM486527803)|Rev. F
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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 Group Corporation 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.
This document may contain confidential and/or proprietary information of
Vertiv Group Corporation, and its receipt or possession does not convey
any right to reproduce, disclose its contents, or to manufacture or sell
anything that it may describe. Reproduction, disclosure, or use without
specific authorization from Vertiv Group Corporation is strictly prohibited.
Vertiv and the Vertiv logo are trademarks or registered trademarks of
Vertiv Group Corporation. NetPerform™, NetReach™, NetSure™ and
NetXtend™ are trademarks of Vertiv Energy Systems, Inc. All other
trademarks are the property of their respective owners.
© 2017 Vertiv Energy Systems, Inc. All rights reserved.

Vertiv |NetSure V200D50 DC Power Retrofit Installation & User Manual (UM486527803)|Rev. F
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TABLE OF CONTENTS
Admonishments Used in this Document............................................................4
Important Safety Instructions ..............................................................................5
General Safety ...........................................................................................................................................................5
Personal Protective Equipment (PPE)..............................................................................................5
Handling Equipment Containing Static Sensitive Components..............................5
Static Warning...........................................................................................................6
Introduction ...............................................................................................................7
General..............................................................................................................................................................................7
Specifications............................................................................................................7
DC Output Ratings................................................................................................................................................7
AC Input Ratings.................................................................................................................................................... 9
Environmental Ratings................................................................................................................................... 12
Standard Features..............................................................................................................................................13
Installation................................................................................................................16
Safety Statement.................................................................................................................................................16
Remove Style Strips from Power Bay.............................................................................................. 17
Remove the Power Conversion Unit (PCU) or Blank Cover Panel .................... 17
Install the Mounting Frame........................................................................................................................19
Install the Rectifiers.......................................................................................................................................... 22
Install Remaining Retrofits in Power Bay....................................................................................24
Reinstall Style Strips on Power Bay..................................................................................................24
Repeat Procedure for Remaining Power Bays ......................................................................24
Final Step ....................................................................................................................................................................24
Operation................................................................................................................. 25
Local Indicators.................................................................................................................................................... 25
Rectifier High Voltage Shutdown and Lockout Restart..............................................26
Troubleshooting and Repair............................................................................... 26
Troubleshooting ..................................................................................................................................................26
Replacement Procedures............................................................................................................................27
Replacing a Rectifier............................................................................................................................................... 27
Replacing the Rectifier Interface Circuit Card...............................................................................28
Replacing a Fan in a Rectifier ....................................................................................................................... 30

Vertiv |NetSure V200D50 DC Power Retrofit Installation & User Manual (UM486527803)|Rev. F
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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 permitt
ed 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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IMPORTANT SAFETY INSTRUCTIONS
General Safety
DANGER! YOU MUST FOLLOW APPROVED SAFETY PROCEDURES.
Performing the following procedures may expose you to hazards. These procedures should be
performed by qualified technicians familiar with the hazards associated with this type of equipment.
These hazards may include shock, energy, and/or burns. To avoid these hazards:
a) The tasks should be performed in the order indicated.
b) Remove watches, rings, and other metal objects.
c) Prior to contacting any uninsulated surface or termination, use a voltmeter to verify that no voltage
or the expected voltage is present. Check for voltage with both AC and DC voltmeters prior to
making contact.
d) Wear eye protection.
e) Use certified and well maintained insulated tools. Use double insulated tools appropriately rated for
the work to be performed.
Personal Protective Equipment (PPE)
DANGER! ARC FLASH AND SHOCK HAZARD.
Appropriate PPE and tools required when working on this equipment. An appropriate flash protection
boundary analysis should be done determine the “hazard/risk” category, and to select proper PPE.
This product is intended only for installation in a Restricted Access Location.
Only authorized and properly trained personnel should be allowed to install, inspect, operate, or maintain
the equipment.
Do not work on LIVE parts. If required to work or operate live parts, obtain appropriate Energized Work
Permits as required by the local authority, per NFPA 70E “Standard for Electrical Safety in the
Workplace”.
Handling Equipment Containing Static Sensitive Components
ALERT! Installation or removal of equipment containing static sensitive components requires careful
handling. Before handling any equipment containing static sensitive components, read and follow the
instructions contained on the Static Warning Page.

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STATIC WARNING
This equipment contains static sensitive components. The warnings listed below must be observed to
prevent damage to these components. Disregarding any of these warnings may result in personal injury
or damage to the equipment.
1. Strictly adhere to the procedures provided in this document.
2. Before touching any equipment containing static sensitive components, discharge all static
electricity from yourself by wearing a wrist strap grounded through a one megohm resistor. Some
wrist straps have a built-in one megohm resistor; no external resistor is necessary. Read and follow
wrist strap manufacturer’s instructions outlining use of a specific wrist strap.
3. Do not touch traces or components on equipment containing static sensitive components. Handle
equipment containing static sensitive components only by the edges that do not have connector
pads.
4. After removing equipment containing static sensitive components, place the equipment only on
conductive or anti-static material such as conductive foam, conductive plastic, or aluminum foil. Do
not use ordinary Styrofoam™or ordinary plastic.
5. Store and ship equipment containing static sensitive components only in static shielding containers.
6. If necessary to repair equipment containing static sensitive components, wear an appropriately
grounded wrist strap, work on a conductive surface, use a grounded soldering iron, and use
grounded test equipment.

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INTRODUCTION
General
The NetSure™ Model V200D50 DC Power Retrofit is a power solution comprising a Mounting Frame that allows
three (3) new-generation NetSure Rectifiers (Model R48-3500e, Spec. No. 1R483500e), to be installed in the
NetSure Model 1231V1, Spec. No. 582121100 Power Bay. The Retrofit replaces one V200D50 Power Conversion
Unit (PCU), and can operate with or without the original PCUs in the same system.
The V200 Retrofit provides load power, battery float current, and battery recharge current during normal
operating conditions. Each rectifier in the Retrofit incorporates a constant power design. This means that, within
the normal operating ambient temperature range, the maximum output power available is a constant 10,500W
per Retrofit. Within the normal temperature range, the rectifiers operate in one of three modes, depending upon
load demands. Transition between modes is completely automatic.
•Constant Voltage Mode: For any initial output voltage setting from 47 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 10,500W
per V200 Retrofit.
•Constant Power Mode: As load increases above approximately 10,500W per V200 Retrofit (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.
SPECIFICATIONS
DC Output Ratings
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
system MCA. Refer to System Application Guide SAG582121300 for factory settings of Float and
Test/Equalize voltages. 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: This operating parameter is identical in
systems equipped with the V200D50 Retrofits and systems equipped with the original V200D50 Power
Conversion Units (PCUs). Refer to System Application Guide SAG582121100 for a complete description.
c) With Battery Charge Analog Temperature Compensation Module: This operating parameter is identical
in systems equipped with the V200D50 Retrofits and systems equipped with the original V200D50
Power Conversion Units (PCUs). Refer to System Application Guide SAG582121100 for a complete
description.
Power and Current, One (1) V200 Retrofit: 10,500W, maximum (180.9A @ 58 VDC to 218.7A @ 48 VDC).
Figure 1shows the relationship between output voltage and output current at maximum power.

Vertiv |NetSure V200D50 DC Power Retrofit Installation & User Manual (UM486527803)|Rev. F
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Figure 1: Output Voltage vs. Output Current
Power Derating Based on Input Voltage: See Figure 2.
Figure 2: Output Power vs. Input Voltage
Regulation (Rectifier Default):
a) Voltage Regulation: ≤±1%
b) Load Regulation: ≤±0.5%
c) Line Regulation: ≤±0.1%
d) Overshoot at Startup: ≤±1%
e) Dynamic Response (at rated input and output voltage values):
Response time is ≤200 µs, and the overshoot is ≤5% for load changes at 50%-25%-50% and 50%-75%-
50%.

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Overshoot or undershoot is ≤5% and within ±1% of the regulation band, ≤4 ms at 50 µs for load changes
at 10%-90% and 90%-10%.
Regulation (via MCA)
a) Static: The Power System MCA controls the steady state output voltage to within ±0.5% of any voltage
setting within the range of 44.0 to 58.0 volts DC for any and all combinations of load from no load to full
load, input voltage, and input frequency at a constant ambient temperature. If the MCA's regulation
feature is disabled for any reason, steady state regulation is ±1.0% as controlled within the Rectifiers.
b) Dynamic Response: For any step load change from 10% to 90% or from 90% to 10% of full rated load
within 250 microseconds, shall not cause the voltage measured at the output to overshoot or
undershoot more than 5% of the regulated output level within 1 millisecond. The output voltage must
return and stay within the ±1% regulation band within 4 milliseconds and within the ±0.5% regulation
band within 3 seconds.
Any step change of the line voltage within the range of 176 to 264 volts shall not cause the output
voltage to deviate outside the ±0.5% regulation band.
Filtering (with or without battery): Typical readings were taken at nominal input voltage, nominal output
voltage, 50% load, and 25° C ambient.
a) Voice Band Noise: Complies with Telcordia GR-947-CORE.
1. Typically 13 dBrn C-message weighting. Does not exceed 32 dBrn C.
2. Typically 0.100 millivolts psophometric. Does not exceed 1 millivolt psophometric.
b) Wide Band Noise: Complies with Telcordia GR-947-CORE.
1. Typically 150 millivolts peak-to-peak. Does not exceed 200 millivolts peak-to-peak
2. Typically 10 millivolts rms. Does not exceed 30 millivolts rms.
AC Input Ratings
Voltage: Nominal 208/240 volts AC, single phase, 60 Hz, with an operating range of 176 to 264 volts.
Acceptable input frequency range is 45 to 65 Hz.
Safe Voltage: The system can tolerate 415 volts AC without damage.
THD (Total Harmonic Distortion): < 5% THD at 50% - 100% load. The voltage source must have a voltage THD
of < 1.1%. The rectifiers comply with EN61000-3-2.
Inrush Current: Peak does not exceed 1.5 times the steady state peak value of the 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.

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Typical Input Data: One (1) V200D50 Retrofit, 50 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 180 Amperes.
Nominal
Input
Voltage
Percent
of Full
Load
Input
Current
(Amperes)
Input
VA
Input
Watts
Power
Factor
Efficiency
%
Heat
Dissipation
(BTU/Hr)
208
0
0.815
294
61
0.20
--
211
25 7.410 2669 2607 97.66 94.68 473
50
14.320
5160
5126
99.36
95.67
757
75
21.500
7751
7731
99.74
95.57
1169
100
28.850
10403
10388
99.86
94.73
1869
110 31.280 11284 11269 99.88 94.30 2192
120
31.280
11280
11266
99.87
93.80
2383
240
0 0.895 373 61 0.16 -- 208
25
6.504
2709
2630
97.10
95.07
450
50
12.470
5195
5138.6
98.92
96.07
689
75
18.500
7706
7670
99.50
95.90
1071
100 24.890 10364 10338 99.74 95.20 1679
110
26.950
11220
11195
99.78
94.88
1954
120 26.940 11217 11190 99.76 94.40 2138
a) Maximum Input Current: at 100% of full load with output adjusted to 58 volts DC as measured at the
Retrofit output terminals, and input voltage as shown.
Nominal
Input Voltage
Input
Voltage
Input Current
(Amperes)
208/240 176 36.47

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Typical Input Data: One (1) V200D50 Retrofit, 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 180 Amperes.
Nominal
Input
Voltage
Percent
of Full
Load
Input
Current
(Amperes)
Input
VA
Input
Watts
Power
Factor
Efficiency
%
Heat
Dissipation
(BTU/Hr)
208
0
0.908
328.9
61.7
0.187
--
211
25 7.41 2672 2594.5 97.10 94.50 486
50
14.34
5171
5130
99.20
95.70
752
75
21.34
7694
7669
99.70
95.60
1161
100
28.87
10412
10395
99.80
94.60
1910
110 31.298 11285 11270 99.86 94.40 2139
120
31.23
11263
11246
99.84
93.88
2348
240
0 1.005 417 61.0 0.146 -- 208
25
6.51
2709
2609.5
96.30
94.80
462
50
12.53
5218
5143
98.60
96.00
696
75
18.54
7717
7671
99.39
95.90
1069
100 24.893 10363 10329 99.67 95.26 1670
110
26.96
11223
11192
99.72
94.87
1940
120 26.918 11205 11170 99.69 94.40 2131
b) Maximum Input Current: at 100% of full load with output adjusted to 58 volts DC as measured at the
Retrofit output terminals, and input voltage as shown.
Nominal
Input Voltage
Input
Voltage
Input Current
(Amperes)
208/240 176 36.33

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c) Typical Efficiency versus Output Current: See Figure 3.
Figure 3: Typical Efficiency
Environmental Ratings
Operating Ambient Temperature Range:
a) Operational: -40°C to +75°C (-40°F to +167°F)
b) Start: -30°C to +75°C (-22°F to +167°F)
c) Specification Compliant Full Output: -20°C to +45°C (-4°F to +113°F)
d) Reduced Load: +45°C to +75°C (+113°F to +167°F). Refer to Figure 4.
Storage Ambient Temperature Range: -40°C to +75°C (40°F to +167°F).
Humidity: This system is capable of operating in an ambient relative humidity range of 0% to 95%, non-
condensing.
Altitude: 2000 m (6560 ft) at full power (power limited for heights above 2000 m).
Ventilation Requirements: When equipped with V200 Retrofits, a VPS Power Bay must be mounted so
ventilating openings are not blocked and temperature of the air entering the cabinet does not exceed the
Operating Ambient Temperature Range stated previously.
In addition, the distance from the rear of a VPS Power Bay to a wall or other solid structure must not be less
than 15 inches. This will assure proper air flow through the V200 Retrofits.
Audible Noise: The audible noise at any point one meter from any vertical surface of a Power Bay, with one
V200 Retrofit installed and fans operating, does not exceed the following typical levels. A Sound Level Meter
conforming to ANSI S1.4 was used.
a) Fan at Low Speed: < 59 dBA
b) Fan at High Speed: < 67 dBA
84
86
88
90
92
94
96
98
0 20 40 60 80 100
Effiency (%)
Load (% of rated load)

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EMI/RFI Suppression: A V200 Retrofit operating in a NetSure Power Bay conforms to the requirements of FCC
rules Part 15, Subpart B, Class A for Radiated and Conducted emissions limits.
Surge Protection: Complies with IEEE C62 41-1991 Class B3, 6kV/3kA (1.2/50 µs surge voltage and 8/20 µs
surge current).
NOTE! This level of protection is a widely used standard for telecommunications power equipment. As
with all such equipment, it is the end user's responsibility to provide an adequately sized Surge
Suppression Device at the commercial power service entrance of the building that reduces all incoming
surges to levels below the classes/categories stated for the equipment.
Compliance Information
a) Safety: The rectifiers have been recognized to meet the UL/EN/IEC 60950-2000 safety standard and
are CE marked.
b) RoHS: The rectifiers are RoHS compliant, 5/6.
Standard Features
Type of Power Conversion Circuit: High frequency.
Float Charging Output Mode: This operating parameter is identical in systems equipped with the V200D50
Retrofits and systems equipped with the original V200D50 Power Conversion Units (PCUs). Refer to System
Application Guide SAG582121100 for a complete description.
Test/Equalize Charging Output Mode: This operating parameter is identical in systems equipped with the
V200D50 Retrofits and systems equipped with the original V200D50 Power Conversion Units (PCUs). Refer to
System Application Guide SAG582121100 for a complete description.
Output Mode (Float or Test/Equalize) Selection: This operating parameter is identical in systems equipped
with the V200D50 Retrofits and systems equipped with the original V200D50 Power Conversion Units (PCUs).
Refer to System Application Guide SAG582121100 for a complete description.
Input Protection:
a) Input Fusing: Input fusing is provided in each rectifier. This fusing is not customer replaceable.
b) Low AC Input Voltage Protection: If AC input voltage decreases to within the range of approximately
80-176 volts (non-adjustable), the rectifiers continue to operate, but at a reduced maximum output (see
Figure 2). When AC input voltage increases to approximately 176 volts (non-adjustable), the PCU
automatically switches to full output power.
If AC input voltage decreases below approximately 80 volts (non-adjustable), rectifier power conversion
circuitry inhibits, disabling system output, and the rectifier protection indicator (yellow) illuminates.
When AC input voltage increases to within the range of approximately 95-176 volts (non-adjustable), the
system automatically restarts and operates in the reduced power mode.
c) High AC Input Voltage Protection:
1. Over Voltage Inhibit: If AC input voltage increases to approximately 295 volts, the PCU power
conversion circuitry inhibits, disabling system output. When AC input voltage decreases to

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approximately 280 volts (non-adjustable), the rectifier automatically restarts, and the protection
indicator extinguishes.
2. Over Voltage Isolation: The Rectifier will be disconnected from the AC input when a preset non-
adjustable value is reached.
Output Protection:
a) Current Limiting: The maximum current delivered by the system can be programmed from 10% to 110%
of total system capacity. The MCA automatically adjusts the current limit circuit on each V200 Retrofit
so that this value is not exceeded. If a V200 Retrofit fails, the MCA automatically resets current limit
point of each remaining V200 Retrofit to maintain this value. The MCA also insures that the current
limit circuit of each remaining V200 Retrofit is not set above 110% of its capacity. The default current
limit setting is the sum of the output ratings of each installed V200 Retrofit. If a V200 Retrofit is added
to the system, the system current limit is automatically increased by the rating of the new V200 Retrofit
and the new current limit value is displayed.
The current limiting point can be adjusted without removing a V200 Retrofit. One adjustment changes
the setting of all V200 Retrofits.
The current limit is factory set at 100% of rated full load, unless otherwise specified.
b) Thermal Power Limiting: Each rectifier continuously monitors the ambient temperature surrounding the
power conversion circuit. If this temperature for any reason (such as a high ambient temperature)
increases above approximately +45°C (+113°F), the Rectifier will not shut down. Rather, the rectifier will
limit its maximum output power to maintain the temperature of the power conversion circuit within
design parameters. Operation between +45°C (+113°F) and +65°C (149°F) will result in the output power
being decreased. Full power capability is restored when the temperature decreases to below
approximately +45°C (+113°F). Figure 4illustrates typical operating parameters.
WARNING! The module is rated for continuous operation at full output power up to +45°C (+113°F).
Operation between +45°C (+113°F) and +65°C (149°F) will result in output power decreasing. Operation
above +65°C (+149°F) is considered abnormal and should be used on a temporary1basis only.
1Temporary Operation at Abnormal Temperature: Temporary operation refers to a period of not more
than eight consecutive hours per day, and a total of not more than 15 days in a year. (This refers to a
total of 120 hours in any given year, but no more than 15 occurrences in that one year period.)
Figure 4: Typical Thermal Power Limit Curve

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c) Output Fusing: Output fusing is provided in each Rectifier. If a fuse opens, local and remote Rectifier
Fail Alarms activate. This fusing is not customer replaceable.
d) High Voltage Shutdown (Each Rectifier):
1. Selective: If rectifier output voltage exceeds an adjustable preset value and is delivering more than
10% of its rated current, the rectifier shuts down.
After approximately 6 seconds, the rectifier automatically restarts. If rectifier output voltage again
exceeds the high voltage shutdown value within 5 minutes, the rectifier shuts down and locks out.
Manual restart is then required (by turning AC power off or removing the rectifier, then reapplying
AC power or reinserting the rectifier). If the rectifier does not experience a high voltage condition
within the 5 minute time period, the restart circuit is reset.
Only the rectifier causing the high voltage condition shuts down.
Setpoint is adjustable from 56.00 to 59.00 volts DC. Factory set at 57.50 volts, unless otherwise
specified. One adjustment at the MCA changes the setting of all Rectifiers.
2. Backup: If rectifier output voltage exceeds a second (non-adjustable) value, the rectifier shuts down and
locks out regardless of load. Manual restart is then required. The backup HVSD setpoint is 59.5V
(within the range of 58.5 to 60V).
Output Current Walk-In:
a) Normal Start:
•Start up time, defined as beginning at AC switch on and ending when full output power has been
reached, consists of two time intervals, the delay period and the output voltage ramp up period.
•During the delay period the output voltage will be zero.
•Start up time (AC on, till full power): < 5 seconds.
b) Current Walk-In (if enabled via Controller):
•90% load in > 8S, 100% load in < 124s.
•According to Telcordia GR-947-CORE, R3-19.
Hot Swappable: Each rectifier is designed to be plug-and-play. The rectifier can be inserted or removed from a
live DC power system with no damage. When the rectifier is plugged into the system, the system output
voltage will not be affected.
NOTE! The Retrofit Mounting Frame CANNOT be installed in or removed from the Power Bay unless all
Rectifiers are first removed from the Mounting Frame. Doing so will defeat the precharge circuit in the
rectifiers and cause arching and pitting on the DC power connector!
Cooling: Each rectifier contains one fan for front-to-back forced convection cooling.
Fan Control:
•When input voltage is within normal range, the fan’s speed is controlled based on the internal
temperature of the rectifier.

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•The fan is turned off when input voltage is abnormal such as very low or high input voltage.
•The fan starts at half speed when the rectifier starts up.
•A fan failure is detected and reported to the Controller. In addition, the fault indicator (red) on the
Rectifier front panel will flash and the Rectifier will also inhibit its output.
•Full fan speed is customer selectable via the Controller.
Active Load Sharing (Rectifier): Each Rectifier uses advanced digital active load sharing technology that
maintains balancing to within ±1.5A. The difference in the average current between Rectifiers is <±1.5A for loads
in the 10 to 100% range.
Load Sharing (via system MCA): The MCA load sharing feature automatically balances the load. If the MCA's
load sharing feature is disabled for any reason, pre-programmed slope control in each PCU or Retrofit balances
the load. The MCA's load sharing feature is disabled whenever the system is in current limit, the system is
delivering more than 97% capacity, or the system is delivering less than 3% capacity.
NOTE! For optimal load sharing between the V200 Retrofits and legacy V200 PCUs, MCA version 4.2.0
or newer is required. With earlier MCA versions, system functionality is maintained; however, load
sharing will not be proportional.
Communication Failure: A rectifier’s protection indicator (yellow) will begin flashing should it experience a
communication failure. The failure information will be reported to the Controller and the Controller will process
the failure accordingly. During a communication failure, in order to protect the battery, rectifier output voltage
will automatically adjusted to a default value of 53.5 V. The rectifier will revert to normal operation once normal
communication is restored.
Imbalance of Rectifier Output Current: When the output current of a rectifier in a DC power system is
unbalanced, the rectifier having the unbalanced output current will be identified automatically and its
protection indicator (yellow) will illuminate.
The failure information will be reported to the Controller and the Controller will process the failure
accordingly.
Paralleling: A Power System equipped with V200 Retrofits may be connected in parallel with any rectifier of the
same polarity and adjusted to the same output voltage.
Weight: 58 Lbs. (Mounting Frame with Three Rectifiers)
INSTALLATION
Safety Statement
DANGER! INSTALLERS MUST FOLLOW APPROVED SAFETY PROCEDURES.
Hazardous AC and DC power sources are connected to, and are present within, the Power System.
Following this installation procedure will minimize the possibility of personal injury or equipment damage.
Refer to the documentation provided with your Power System for any installation or maintenance
procedures beyond the scope of this upgrade procedure.

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The NetSure™ Model V200D50 DC Power Retrofit is designed to mount in a Model 1231V1, Spec. No. 582121100,
Power Bay. Installation in any other Power System should not be attempted.
Installation consists of removing one existing V200D50 Power Conversion Unit (PCU) or blank cover panel
from the Power Bay, installing the V200 Retrofit Mounting Frame in the Power Bay, and installing the three
furnished NetSure™ R48-3500e Rectifiers in the Mounting Frame.
The V200D50 Retrofit can be installed while the Power System is in service. Before starting, ensure that all AC
input and DC output connections to the Power Bay are intact. No changes or adjustments are required for
these connections when installing the V200D50 Retrofit. All wiring and grounding should follow the current
edition of the National Electrical Code and applicable local codes.
Performing this upgrade procedure may activate external alarms. Do one of the following. If possible, disable
these alarms. If these alarms cannot be easily disabled, notify the appropriate personnel to disregard any future
alarms associated with this system.
Follow the procedures below to replace one or more existing V200D50 Power Conversion Units (Rectifiers)
with the NetSure V200D50 Retrofit.
Remove Style Strips from Power Bay
Procedure
1. Remove the two style strips from the front left and right edges of the VPS Power Bay being upgraded.
These conceal the mounting hardware. The style strips are secured at the bottom with a captive
fastener, and at the top with a pin that passes through a hole in the style strip. To remove the style strip,
loosen the captive fastener at the bottom, and slide the bottom of the style strip out and up.
Remove the Power Conversion Unit (PCU) or Blank Cover Panel
Procedure
1. If the mounting position in the Power Bay has a cover panel rather than a V200 PCU, remove the cover
panel by first removing the four screws that secure it. Then skip steps 2 and 3.
NOTE! In the next step, the OUTPUT SWITCH has a mechanical interlock that prevents a PCU from
being plugged into or pulled out of a bay with the device in the "on" position.
CAUTION! In a system with NO redundant Rectifier, battery must have sufficient reserve to power the
load(s) while the Rectifier is removed.
2. On the PCU to be removed, place the Standby/Operate switch to the "standby" position, then the
OUTPUT SWITCH to the 0 "off" position.
DANGER! In the next step, use two people to remove a PCU. A PCU weighs approximately 80 lbs..
NOTE! In the next step, a safety latch is present on each PCU that prevents the PCU from inadvertently
being removed completely from the Power Bay.
3. Loosen the captive fasteners on the front of the PCU to be removed. Use the handles provided on the
front of the PCU, and pull the PCU out until it is stopped by a safety latch located on the right-hand side
panel of the PCU. Refer to Figure 5for latch and release location. Depress and hold the latch release,
and remove the PCU from the Power Bay. Support the bottom of the PCU as you pull it out.

Vertiv |NetSure V200D50 DC Power Retrofit Installation & User Manual (UM486527803)|Rev. F
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Figure 5: Right Side View of V200 PCU Showing Location of Safety Latch and Latch Release
SAFETY
LATCH
LATCH
RELEASE

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Install the Mounting Frame
The Retrofit Mounting Frame CANNOT be installed in the Power Bay unless all Rectifiers are first
removed from the Mounting Frame. Doing so will defeat the precharge circuit in the rectifiers and cause
arching and pitting on the DC power connector!
Checking the Power Bay’s Rectifier AC/Data Connector in Older Style Bays
Identifying Older Style Bays
1. Older style bays have Rectifier AC/Data connectors that do not have springs as shown in Figure 6. In
bays that have Rectifier AC/Data connectors without springs, perform the following procedure.
Figure 6: Identifying Older Style Bays
Rectifier
AC/Data
Connector
Spring
Newer Style Bays
Have the Springs,
Older Style Bays
Do Not Have Springs
Spring

Vertiv |NetSure V200D50 DC Power Retrofit Installation & User Manual (UM486527803)|Rev. F
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Check Procedure (Older Style Bays Only)
1. With the PCU removed, use a quality wooden carpenter’s ruler or other non-conductive rule. Place the
measuring device directly against the unpainted bracket holding the AC/Data connector. Take two
measurements, one on the bottom of connector directly next to the bolt through the black ac housing,
and note the distance to the front outside of the left side panel. Take second measurement on the top
of the AC/Data connector. Both must measure 15-5/16” + 1/16” or -1/16” tolerance. See Figure 7.
Figure 7: Taking Measurements
2. Pay close attention to the measurements, they must be within 15-1/4” to 15-3/8”. If a measurement is
greater than 15-3/8” or less than 15-1/4”, adjustment is required (see next procedure).
Adjustment Procedure (Older Style Bays Only, if required)
1. When adjustment of the PCU slot is required, it is recommended to remove the PCU below the slot
which requires adjustment. This allows the AC/Data connector to be moved as required to properly set
the 15-5/16” measurements.
NOTE! The MCA will alarm with the removal of any PCU, so be aware Minor and Major alarms could be
generated during this process.
2. In the PCU slot to be adjusted, remove the rear sheet metal panel on the rear of bay and locate the two
Philips 1/4” self tapping screws at the bottom of panel, which holds the AC connector. Loosen these
screws. See Figure 8.
3. Directly to the right of the two Philips screws is a single 1/4” inch hex bolt which also must be loosened
for lower adjustment. See Figure 8.