Vertiv eSure I120-1000 User manual

eSure™
Inverter Module
User Manual
Specification Number: 1I1201000
Model Number: I120-1000

Vertiv™ eSure™ Inverter Module User Manual
Vertiv™ eSure™ Inverter 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
disclosure of it without the written permission of Vertiv is strictly prohibited.
Names of companies and products are trademarks or registered trademarks of
the respective companies. Any questions regarding usage of trademark
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.

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TABLE OF CONTENTS
Admonishments Used in this Document.............................................................................................................................iv
Important Safety Instructions..................................................................................................................................................v
Static Warning ............................................................................................................................................................................ vii
1Introduction...............................................................................................................................................................................1
1.1 Overview.................................................................................................................................................................................................................................................................................1
1.2 Specifications.....................................................................................................................................................................................................................................................................1
1.2.1 AC Output Ratings.................................................................................................................................................................................................................................1
1.2.2 DC Input Ratings.....................................................................................................................................................................................................................................3
1.2.3 AC Input Ratings.....................................................................................................................................................................................................................................3
1.2.4 Environmental Ratings ......................................................................................................................................................................................................................3
1.2.5 Compliance Information ...................................................................................................................................................................................................................4
1.2.6 Standard Features .................................................................................................................................................................................................................................4
1.2.7 Mechanical Specifications..............................................................................................................................................................................................................5
2Operation ..................................................................................................................................................................................7
2.1 Local Indicators ..............................................................................................................................................................................................................................................................7
2.2 Installing Inverter Modules...................................................................................................................................................................................................................................8
3Troubleshooting and Repair ..............................................................................................................................................9
3.1 Troubleshooting.............................................................................................................................................................................................................................................................9
3.1.1 Inverter Module Parallel Current Sharing Abnormal .............................................................................................................................................9
3.1.2 Inverter Module Fault Symptoms and Troubleshooting....................................................................................................................................9
3.2 Replacement Procedures...................................................................................................................................................................................................................................10
3.2.1 Inverter Module Replacement.................................................................................................................................................................................................10
3.2.2 Inverter Fan Replacement............................................................................................................................................................................................................ 11

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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 o
nly 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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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.
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.
Voltages
AC Input Voltages
DANGER! This system operates from AC input voltage capable of producing fatal electrical shock.
AC Output Voltages
DANGER! This system produces AC output voltage capable of producing fatal electrical shock.
AC output voltage is present even if only the DC input is connected!
DANGER! Follow local lockout/tagout procedures to ensure AC branch circuit protection devices remain de-energized
during installation at loads, as required.
DC Input Voltages
DANGER! This system operates from DC input voltage. Although the DC voltage is not hazardously high, the DC input
power can deliver large amounts of current. Exercise extreme caution not to inadvertently contact or have any tool
inadvertently contact a DC input terminal or exposed wire connected to a DC input terminal. NEVER allow a metal object,
such as a tool, to contact more than one DC input terminal at a time, or to simultaneously contact a DC input terminal and a
grounded object. Even a momentary short circuit can cause sparking, explosion, and injury.

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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 to determine the “hazard/risk” category, and to select proper PPE.
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”.
Hazardous Voltage
DANGER! HAZARD OF ELECTRICAL SHOCK.
More than one disconnect may be required to de-energize the system before servicing. The inverter system is not supplied
with internal input voltage disconnect devices. It is a dual input power supply. Even if the main AC power to the inverter
system has been disconnected, potential harm still exists from the inverters taking power from the DC input power source.
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 under “Static Warning” on
page vii.
Maintenance and Replacement Procedures
CAUTION! When performing any step in the procedures that requires removal or installation of hardware, use caution to
ensure no hardware is dropped and left inside the unit; otherwise service interruption or equipment damage may occur.
NOTE! When performing any step in the procedures that requires removal of existing hardware, retain all hardware for use in
subsequent steps, unless otherwise directed.

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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 static dissipative
surfaces such as conductive foam or ESD bag. 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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1Introduction
1.1 Overview
The Vertiv™ eSure™ 1I120-1000 is a compact inverter module which offers efficient power conversion. It operates from a nominal 120
VAC or 48 VDC source (as a default power input) to provide nominal 120 VAC load power.
The system the inverter module is installed in can be set to operate in one of two input power modes, AC Input Power Mode and DC
Input Power Mode.
•In the AC Input Power Mode, each inverter module operates with the commercial AC input to supply 120 VAC power to the
loads. In the event commercial AC power fails or becomes abnormal, the inverter modules immediately transfer operation
with the 48 VDC input to power the inverters.
•In the DC Input Power Mode, each inverter module operates with the 48 VDC input to supply 120 VAC power to the loads. In
the event DC power fails or becomes abnormal or an inverter module fails, the inverter module immediately transfers
operation with the commercial 120 VAC input to power the inverters.
1.2 Specifications
1.2.1 AC Output Ratings
•Output Voltage: 120 VAC. Selectable 50 Hz or 60 Hz from inverter, with up to maximum 0.25% deviation. The default value
is 120 VAC and 60 Hz.
•Output Power: 1.0 kW resistance load at 120 VAC output.
•Overload Ability:
a) Lower or equal than 125%, in 15 seconds.Maximal current is 3x in with 120 ms.
b) Lower or equal than the overload value 15 seconds (the overload value: as the input voltage increases, the overload
value increases linearly from 105% to 125%).
c) Short Circuit Protection: The inverter will not restart if a short circuit occurs on the output voltage for 60s or more.
•Transfer Time: No disturbances or deviations on the AC output during the transfer between the input power sources, the
transfer time is 0s.
•Start Up Time: Upon module insertion - maximum 60 seconds.
•Load Power Factor: 0.65 lagging to 0.9 leading.
•Power Derating Based on Temperature: The inverter delivers full power when operating at an ambient temperature of +45 °C
(+113 °F) or below. Each inverter 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
inverter will not shut down. Rather, the inverter limits its maximum output power to maintain the temperature of the power
conversion circuit within design parameters. Operation between +45 °C (+113 °C) and +80 °C (+176 °F) will result in output
power being decreased. The inverter delivers 50% load at an ambient temperature of +65 °C (+149 °F) with linear derating
to 50% from 45 °C to 65 °C. The inverter delivers 0% load at an ambient temperature of +80 °C with linear derating to 0%
from 65 °C to 80 °C. Full power capability is restored when the temperature decreases to below approximately +45 °C
(+113 °F). Refer to Figure 1.1 to view the relationship between the output power and the ambient temperature.

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WARNING! The inverter is rated for continuous operation at full output power up to +45 °C (+113 °F). Operation between
+45 °C (+113 °F) and +80 °C (+176 °F) will result in output power decrease. When ambient temperature increases above
+80 °C (+176 °F), the inverter shuts down.
Figure 1.1: Power Derating Based on Temperature
•Dynamic Regulation: In accordance with IEC 62040-3 specifies recovery time.
•THDu: <3% at resistive load, compliant with IEC 62040-3.
•Crest Factor at Nominal Power: 3:1.
•Output Protection Alarm: An alarm is sent to the controller when 80% load is reached. A critical load alarm is sent to the
controller when 100% load is reached.
•Efficiency Curve:Refer to Figure 1.2 for an AC-AC efficiency curve . Refer to Figure 1.3 for a DC-AC efficiency curve.
Figure 1.2: AC-AC Efficiency Curve (60Hz)
0
20
40
60
80
100
120
-20 020 40 60 80 100
% of output power
Temperature (℃)
Output power vs. Temperature
90.00%
91.00%
92.00%
93.00%
94.00%
95.00%
96.00%
20% 30% 40% 50% 60% 70% 80% 90% 100%
Efficiency
Load
AC-AC Efficiency VS Load
120V

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Figure 1.3: DC-AC Efficiency Curve (53.5VDC)
1.2.2 DC Input Ratings
•Voltage: Nominal 48 VDC. 40 VDC to 58.5 VDC, off at 40 VDC and 58.5 VDC, fails safe with reverse polarity on battery.
NOTE! High voltage limit of DC input: 60 VDC without damaged.
1.2.3 AC Input Ratings
•Voltage: Nominal 120 VAC. Operating range 96 VAC to 140 VAC with full load. Selectable by the inverter configuration file -
50 Hz (range 47 – 53 Hz) and 60 Hz (range 57 – 63 Hz), at 60 Hz without problem. The output will trace the input
frequency. If the frequency is out of scope, the inverter will transfer to DC or shut down by configuration.
•Power Factor: >0.99 with full resistance load at rated status.
•THDI: The THDI will be less than or equal to 5% with full resistance load.
1.2.4 Environmental Ratings
•Operating Ambient Temperature Range:
a) -20 °C (-4 °F) to +45 °C (+113 °F) with full power performance.
b) +45 °C (+113 °F) to +65 °C (+149 °F) linear derating to 50% load.
c) +65 °C (+149 °F) to +80 °C (+176 °F) linear derating to 0% load.
d) Maximum Operating: +80 °C (+176 °F).
•Storage Ambient Temperature Range: -40 °C (-40 °F) to +70 °C (+158 °F).
•Relative Humidity: This inverter is capable of operating in an ambient relative humidity range of 0% to 95%.
•Altitude: Used in locations where highest altitude is 3000 meters (9842 ft), 2000 m (6560 ft) at full power.
NOTE! As per Telcordia GR-63. Operating: -200 feet (-61 meters) to 10,000 feet (3048 meters). No de-rating below 2000
meters (6562 feet). Above this level (6562 feet) the de-rating can be up to 3 °C per 1000 feet. As a CE product, GR-63 is a
reference standard.
86.00%
87.00%
88.00%
89.00%
90.00%
91.00%
92.00%
93.00%
20% 30% 40% 50% 60% 70% 80% 90% 100%
Efficiency
Load
DC-AC Efficiency VS Load
53.5V

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•Surge Protection: Compliance with IEC60664-1. Satisfy category IV installation place, I capable of withstanding
1.2/50uS+8/20us wave, higher than 6kV/3kA.
•Ventilation Requirements: The inverters are fan cooled and utilize front to back forced ventilation. Aninverter must be
mounted so ventilating openings are not blocked and temperature of the air entering the inverter does not exceed the
“Operating Ambient Temperature Range” stated above.
•Single Inverter Audible Noise: At 25 °C ≤50dB(A) with fan.
•Power Distribution System: TN/TT/IT.
NOTE! The inverter is recommended to be used in an environment with Pollution of Degree 2 or less.Pollution Degree 2
applies where there is only non-conductive pollution that might temporarily become conductive due to occasional
condensation (such as the office environment).
•EMI Requirements:
a) Conducted Emission: FCC Part 15 (CFR 47), Class A; GR-1089, Class A.
b) Radiated Emission: FCC Part 15 (CFR 47), Class B;GR-1089, Class B.
•EMS Requirements:
a) Immunity to Electrostatic Discharge: IEC/EN 61000-4-2.
b) Immunity to Surges: ANSI C62.41; GR-1089.
1.2.5 Compliance Information
•Safety:
-UL:UL1778.
-CUL: CSA C22.2 NO.107.3.
•REACH: Material Composition Declaration.
•ROHS: R10.
1.2.6 Standard Features
•Type of Power Conversion Circuit: High frequency.
•AC Input Power Mode: Each inverter module operates with the commercial AC input to supply 120 VAC power to the loads.
In the event commercial AC power fails or becomes abnormal, the inverter modules immediately transfer operation with the
48 VDC input to supply the inverters. The transfer time is 0s.This is the default mode.
•DC Input Power Mode: Each inverter module operates with the 48 VDC input to supply 120 VAC power to the loads. In the
event DC power fails or becomes abnormal or an inverter module fails, the inverter module immediately transfers operation
with the commercial 120 VAC input to supply the inverters.The transfer time is 0s.
•Input Protection:
a) DC - Low/High Input Voltage Protection:
1. When the DC input voltage is less than 40 VDC, the inverter will shut down or transfer to AC input (if available).
2. When the DC input voltage is higher than 58.5 VDC, the inverter will shut down or transfer to AC input (if available).
The maximum DC input voltage must not exceed 60 VDC.

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b) AC - Low/High Input Voltage Protection:
1. When the AC input voltage is less than 96 VAC, the inverter will shut down or transfer to DC input.
2. When the AC input voltage is higher than 140 VAC, the inverter will shut down or transfer to DC input. The
maximum AC input voltage must not exceed 140 VAC.
•Over-Temperature Protection: The inverter provides high temperature protection by derating output power and recovers
automatically.
•ESTOP: Emergency STOP can be applied via a SW signal by CAN line from the controller to the inverter, automatically
triggered by controller.
•Remote ON/OFF Control/REPO: Closing the REPO connection on the inverter’s backboard will disable the inverter, the
inverter will automatically restart after opening the REPO via hardware circuit.
•Hot Swappable: The inverter is designed to be plug-and-play. The inverter can be inserted or removed from a live DC power
system with no damage. When the inverter is plugged into the system, the system output voltage will not be affected.
•Cooling: Each inverter contains a fan for front-to-back force air-cooling.
a) Fan Fault Protection: The inverter shuts down and its alarm indicator (red) flashes if the fan fails. After the fault is
cleared, the inverter recovers automatically, and then the indicator turns off. Fan failure is detected and reported to
controller. The fan is field replaceable, and it is recommended to replace the fan after 7 years running in the field or
according to the maintenance schedules.
b) Fan Control:Fan speed is continuously variable. When input voltage is within normal range, the built-in processor
adjusts fan speed according to the inverter’s internal temperature and output power. For example, a higher temperature
or output power increases the fan speed. This feature can be disabled via the controller, allowing the fan to run at full
speed regardless of temperature.
•Paralleling: Up to 24 inverters can be connected one phase in parallel in one system.
•Communication Failure: The inverter’s protection indicator (yellow) will flash should it experience a communication failure.
The failure information will be reported to the controller and the controller will process the failure accordingly.
•Monitoring Function: The inverter has a built-in advanced DSP that monitors and controls the operation of the inverter. The
DSP also communicates with the controller in real time through the CAN bus.
•Table 1.1 lists the different commands and information exchanged between the inverter and the controller.
1.2.7 Mechanical Specifications
•Dimensions:
a) Millimeters: 40 (Height) X 84.5 (Width) X 252.5 (Depth)
b) Inches: 1.57 (Height) X 3.3 (Width) X 9.9 (Depth)
•Weight: 1.1 5kg (2.54 lbs)
•Indicators:
a) Power (Green)
b) Protection (Yellow)
c) Alarm (Red)

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Table 1.1: Exchange of Information between Inverter and Controller
Commands / Signals that can be Received by the Inverter
Module from the Controller
Information Gathered by the Controller from the Inverter Module
•Remote On/Off
•Operating Mode
•Frequency
•Phase
•DC Over/Under Voltage Setting and Return Point Voltage
•Fan Speed Control
•Clear Fault
•Output Voltage
•Output Current
•AC Input Voltage
•AC Input Current
•AC Input Frequency
•AC Input Active Power
•DC Input Voltage
•DC Input Current
•DC Input Power
•Output Power Factor
•Output Frequency
•Output Load Rate (VA) CAP (%)
•Output Active Power
•Output Apparent Power
•AC Input Electric Energy
•DC Input Electric Energy
•Output Electric Energy
•Ambient Temperature
•On/Off Status
•Fault Alarms, includes:
-Fan Fault
-Inverter Fault
-AC Input Abnormal
-DC Input Abnormal
-PFC Fault
-DC Bus Fault
-DC/DC Fault
-Output Short
-Output is About to Overload Alarm
-Output Overload
-Only DC Power
-ESTOP
-REPO
-Repeat CAN ID
-Parallel Flow Anomaly
-System Parallel Parameters are Out of SYNC
-Parallel CAN Communication Failure
-Phase Anomaly
•Protection Alarms, includes:
-Input Voltage Protection
-High Temperature Protection
-Low Output Voltage
•Address
•Code
•Running Time
•Software Version
•Hardware Version

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2Operation
2.1 Local Indicators
Location and Identification: Refer to Figure 2.1.
Description: There are three (3) indicators located on the inverter’s front panel. The functions of these indicators are as shown in
Table 2.1.
NOTE! DC voltage must be present at the inverter input terminals.
Figure 2.1: Local Indicator Locations
Table 2.1: Inverter Module Indicators
Indicator Normal State Alarm State Alarm Cause
Power
(Green) On
Off Output not available.
Flashing The inverter is being identified by the controller.
Protection
(Yellow) Off
On
AC Input Abnormal
DC Input Abnormal
Overload
Over Temp
REPO
Parallel Current Unsharing
Flashing
Synchronize (3.3 Hz)
Loss of communication with the controller (1 Hz)
(the inverter can provide power).
Alarm
(Red) Off
On
Inverter Fail
Output Short Circuit
Parallel CAN BUS Fault
Module ID Conflict
Inconsistent Parallel Parameters
Flashing Fan not operating (1 Hz) (inverter module shuts
down).
Power Indicator (Green)
Protection Indicator (Yellow)
Alarm Indicator (Red)

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2.2 Installing Inverter Modules
Inverters can be inserted or removed with power applied (hot swappable).
NOTE! Each inverter locks into a module mounting shelf by means of a latch located on the bottom of the module. The latch
and inverter handle are interactive. Pushing the handle up into the module’s front panel causes the latch to extend to the
locking position; pulling the handle down out from the module’s front panel causes the latch to retract. See Figure 2.2.
WARNING! To prevent damage to the latching mechanism, ensure the handle is in the open position when installing or
removing an inverter. NEVER hold the handle in the closed position when installing an inverter into a shelf.
Procedure
NOTE! Refer to Figure 2.2 as this procedure is performed.
1. Unpack the inverter.
2. Place the inverter into an unoccupied mounting slot without sliding it in completely.
3. Loosen the captive screw on the inverter’s handle. Pull the handle down out from the inverter’s front panel (this will also
retract the latch mechanism). See Figure 2.2.
4. Push the inverter completely into the shelf.
5. Push the handle up into the inverter’s front panel. This will lock the inverter securely to the shelf. Tighten the captive screw
on the handle.
6. Repeat the above steps for each inverter being installed in the system.
7. After the inverters are physically installed in the mounting shelf(s), they are ready for operation immediately after power is
supplied to them.
8. Certain functions (i.e. inverter addressing) may require adjustment when adding or replacing an inverter. Refer to the system
documentation for instructions.
Figure 2.2: Installing Inverter Module
Latch
Captive Screw
Handle
Open the Handle

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3Troubleshooting and Repair
3.1 Troubleshooting
3.1.1 Inverter Module Parallel Current Sharing Abnormal
When multiple inverters are operating in parallel and the load is greater than 20%, if the current sharing abnormal among them is
greater than 0.5 A, check if the inverter is properly seated in the shelf.
If the current sharing abnormal still persists following the verification suggested above, replace the inverter exhibiting the current
abnormal.
3.1.2 Inverter Module Fault Symptoms and Troubleshooting
The fault indicators that can be displayed by the inverter are as follows.
Refer to Table 3.1 for a list of possible causes and corrective actions.
•Power Indicator (Green) OFF
•Protection Indicator (Yellow) ON
•Protection Indicator (Yellow) Flashing
•Alarm Indicator (Red) ON
•Alarm Indicator (Red) Flashing
Table 3.1: Inverter Module Troubleshooting
Symptom Possible Cause(s) Suggested Action(s)
Power Indicator
(Green) Off No output voltage. Make sure there is input voltage.
Protection Indicator
(Yellow) On
AC input abnormal. Correct the AC input voltage to within the acceptable range.
DC input abnormal. Correct the DC input voltage to within the acceptable range.
Inverter over-temperature
protection.
Fan rotor blocked: Remove any object that may be blocking the fan.
Ventilation blocked (inlet or outlet): Remove any object that may be
blocking the inlet or outlet.
Ambient temperature too high or inverter inlet too close to a heat
source: Lower the ambient temperature or relocate the heat source.
Protection Indicator
(Yellow) Flashing
Loss of communication with the
controller (1 Hz) (the inverter can
provide power).
Check the communication cables.
Remove and properly insert the inverter.
Alarm
Indicator
(Red) On
Inverter failure Replace the inverter.
Output short circuit Check output wiring and load for short circuit
Parallel CAN BUS Fault Check the communication cables.
Remove and properly insert the inverter.
Alarm Indicator
(Red) Flashing
Fan not operating (inverter shuts
down). Replace the fan.
NOTE! If the yellow light keeps flashing rapidly after the new module is inserted into the shelf (flashing frequency is about
300ms), and then the module cannot startup after 1 minute (the green light is not on), please confirm whether the module is
fully inserted into the shelf.

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3.2 Replacement Procedures
3.2.1 Inverter Module Replacement
Inverters can be inserted or removed with power applied (hot swappable).
NOTE! Each inverter locks into a module mounting shelf by means of a latch located on the bottom of the module. The latch
and inverter handle are interactive. Pushing the handle up into the module’s front panel causes the latch to extend to the
locking position; pulling the handle down out from the module’s front panel causes the latch to retract. See Figure 2.2.
DANGER! Take care when removing an inverter that was in operation, as inverter surfaces could be very hot.
WARNING! To prevent damage to the latching mechanism, ensure the handle is in the open position when installing or
removing an inverter. NEVER hold the handle in the closed position when installing an inverter into a shelf.
Procedure
NOTE! Refer to Figure 2.2 as this procedure is performed.
1. Performing this 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 alarms associated with this system while
this procedure is performed.
2. On the inverter to be removed, loosen the captive screw on the inverter’s handle. Pull the handle down out from the inverter’s
front panel (this will also retract the latch mechanism). See Figure 2.2.
3. Grasp the handle and pull firmly to remove the inverter from the shelf.
4. Place the replacement inverter into the mounting position without sliding it in completely.
5. Loosen the captive screw on the inverter’s handle. Pull the handle down out from the inverter’s front panel (this will also
retract the latch mechanism). See Figure 2.2.
6. Push the inverter completely into the shelf.
7. Push the handle up into the inverter’s front panel. This will lock the inverter securely to the shelf. Tighten the captive screw
on the handle.
8. Certain functions (i.e. inverter addressing) may require adjustment when adding or replacing an inverter. Refer to the system
documentation for instructions.
9. After the inverters are physically installed in the module mounting shelf(s), they are ready for operation immediately after
power is supplied to them. Verify that the inverters are operating normally.
10. Enable the external alarms or notify appropriate personnel that this procedure is finished.
11. Ensure that there are no local or remote alarms active on the system.

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3.2.2 Inverter Fan Replacement
Each inverter uses a fan (P/N 32010474) for cooling. If fan replacement should become necessary, perform the following procedure.
Refer to Figure 3.1 as this procedure is performed.
Procedure
1. Performing this 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 alarms associated with this system while
this procedure is performed.
2. Remove the inverter from the shelf. Refer to a previous procedure for step-by-step instructions.
3. Place the inverter on a static-safe work surface. Connect an approved grounding strap to your wrist for the remainder of this
procedure.
4. On this inverter; remove the front panel by removing the three (3) screws securing the front panel to the chassis.
5. For proper orientation of the new fan, observe the location of the fan wires and the fan rotation and air flow arrows on the old
fan.
6. Carefully remove the fan from the inverter chassis and unplug the fan power cable from the printed circuit card.
7. Plug the power cable of the replacement fan into the connector on the printed circuit card. Carefully slide the replacement
fan into the inverter chassis (ensure the fan wires and fan rotation and air flow arrows match the orientation of the old fan).
8. Note that the fan has four holes in the front corners and that the faceplate has three tabs. Carefully slide the faceplate into
position, aligning the fan holes with the faceplate tabs. Secure the faceplate to the inverter chassis with the three (3) screws
previously removed.
9. Replace the inverter into the shelf. Refer to the previous procedure for step-by-step instructions.
10. When the fan starts, check to ensure that it is providing front-to-back airflow. If air direction is wrong, immediately remove
the inverter from the shelf. Repeat previous steps to check fan orientation and correct as necessary. Reinstall the inverter
and again check for proper airflow.
11. Enable the external alarms or notify appropriate personnel that this procedure is finished.
12. Ensure that there are no local or remote alarms active on the system.
Figure 3.1: Fan Replacement
Fan
Faceplate
Faceplate Mounting Screws (3)
Align holes in fan with tabs on faceplate.

Vertiv™ eSure™ Inverter Module User Manual
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