GE On-line VH Series User manual

Critical Power
User Manual
Uninterruptible Power Supply
GE Consumer & Industrial SA
General Electric Company
CH –6595 Riazzino (Locarno)
Switzerland
T +41 (0)91 / 850 51 51
F +41 (0)91 / 850 52 52
www.gecriticalpower.com

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GE_UPS_OPM_VHU_208_2K0_3K0_XUS_V010.docx Operating Manual VH2000-3000 208V UL
User manual
Uninterruptible Power Supply
On-Line VH Series UPS
2000 –3000 UL / 208V
Please read these instructions carefully before installation and start-up of the
VH Series UPS. Keep this manual in a safe place for future reference.
Model:
VH Series UL
Issued by:
Product Document Department –Riazzino - CH
Approved by
R&D Department –Riazzino - CH
Date of issue:
01.05.2015
File name:
GE_UPS_OPM_VHU_208_2K0_3K0_XUS_V010
Revision:
1.0
Identification No.
SAP –1025645 / Local - 414937
Up-dating
Revision
Concerns
Date
1.0
Initial release
01.05.2015
© General Electric Consumer & Industrial SA. All rights reserved. The present publication and any other documentation supplied with the UPS system is
not to be reproduced, either in part or in its entirety, without the prior written consent of GE.
The information contained in this publication is intended solely for the purposes indicated.
The content of this manual may be subject to change without prior notice; no liability can be accepted for any error or omission. The illustrations and
plans describing the equipment are intended as general reference only and are not necessarily complete in every detail.
US

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Contents
1IMPORTANT SAFETY INSTRUCTIONS .............................................................................................................. 4
1.1 SAVE THESE INSTRUCTIONS..........................................................................................................................................................................4
1.2 SAFETY WARNINGS AND SYMBOLS............................................................................................................................................................4
1.3 SAFETY RULES ......................................................................................................................................................................................................5
1.4 TRANSPORT / STORAGE...................................................................................................................................................................................5
1.5 FCC COMPLIANCE STATEMENT ....................................................................................................................................................................5
2INTRODUCTION ................................................................................................................................................. 6
2.1 INTRODUCTION....................................................................................................................................................................................................6
2.2 INTENDED USE.....................................................................................................................................................................................................6
2.3 WARRANTY.............................................................................................................................................................................................................6
2.4 DIAGRAM.................................................................................................................................................................................................................6
3INSTALLATION.................................................................................................................................................... 7
3.1 PACKAGE CONTENTS ........................................................................................................................................................................................7
3.2 INSTALLATION RULES .......................................................................................................................................................................................7
3.3 REAR PANEL...........................................................................................................................................................................................................8
3.4 INSTALLATION & CONNECTIONS.................................................................................................................................................................8
3.4.1 Preparation.............................................................................................................................................................................................8
3.4.2 Connecting interface devices........................................................................................................................................................8
3.4.3 Connecting power and load...........................................................................................................................................................9
3.4.4 Connecting REPO (Remote Emergency Power Off) switch...........................................................................................10
3.5 INSTALLATION OF A BATTERY EXTENSION PACK.............................................................................................................................. 11
4OPERATION.......................................................................................................................................................12
4.1 OPERATING PANEL..........................................................................................................................................................................................12
4.2 START-UP............................................................................................................................................................................................................. 13
4.2.1 Start-up, mains available.............................................................................................................................................................. 13
4.2.2 Start-up, mains not available ..................................................................................................................................................... 13
4.3 USE: NORMAL OPERATION ..........................................................................................................................................................................13
4.3.1 Normal operation conditions...................................................................................................................................................... 13
4.3.2 No-load shutdown ........................................................................................................................................................................... 13
4.3.3 Output frequency.............................................................................................................................................................................. 13
4.3.4 Switching off........................................................................................................................................................................................13
4.4 USE: STATUS AND ALARM INDICATIONS...............................................................................................................................................14
4.4.1 Standby..................................................................................................................................................................................................15
4.4.2 Normal operation .............................................................................................................................................................................15
4.4.3 eBoost operation ..............................................................................................................................................................................15
4.4.4 On bypass............................................................................................................................................................................................. 15
4.4.5 On battery.............................................................................................................................................................................................15
4.4.6 Battery low (end of runtime)........................................................................................................................................................15
4.4.7 Bypass out of limits.......................................................................................................................................................................... 15
4.4.8 Overload................................................................................................................................................................................................16
4.4.9 Bad battery .......................................................................................................................................................................................... 16
4.4.10 General alarm.....................................................................................................................................................................................16
4.4.11 Shutdown pending...........................................................................................................................................................................16
4.4.12 Startup pending................................................................................................................................................................................. 16
4.4.13 P-N (Phase-Neutral) reversal.......................................................................................................................................................16
4.4.14 REPO (Remote Emergency Power Off)....................................................................................................................................16
4.5 USE: SETUP MODE ........................................................................................................................................................................................... 17
4.6 BATTERY MANAGEMENT............................................................................................................................................................................... 18
5COMMUNICATION ...........................................................................................................................................19
5.1 USB PORT.............................................................................................................................................................................................................19
5.2 RJ11 PORT........................................................................................................................................................................................................... 19
5.3 USB / RS232 / RELAY INTERFACE CARD (OPTION)............................................................................................................................19
5.4 SNMP / WEB INTERFACE CARD (OPTION) .............................................................................................................................................19
6MAINTENANCE.................................................................................................................................................20
6.1 SAFETY ..................................................................................................................................................................................................................20
6.2 GENERAL..............................................................................................................................................................................................................20
6.3 RECYCLING THE UPS AT THE END OF SERVICE LIFE........................................................................................................................ 20
6.4 BATTERIES ...........................................................................................................................................................................................................20
7TROUBLESHOOTING........................................................................................................................................21
8SPECIFICATIONS ..............................................................................................................................................22

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1IMPORTANT SAFETY INSTRUCTIONS
1.1 SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation and maintenance of the UPS. It also
gives all necessary information about the correct use of the UPS. Before attempting to install and start up the UPS, carefully
read this manual. Keep this manual next to the unit for future references.
Full understanding of and compliance with the safety instructions and warnings contained in this
manual are the
ONLY CONDITIONS
to avoid any dangerous situation during installation, operation and maintenance work, and to
preserve the maximum reliability of the UPS system.
GE refuses any responsibility in case of non-observance, unauthorized alterations or improper use of the delivered UPS.
The instructions in this manual are for UPS models VH2000 208V and VH3000 208V. Check your model number by looking at
the rear panel of your UPS. Any difference in instructions is clearly indicated in the text, for instance ‘(VH2000 208V)’.
The UPS is not suitable for computer room application as per the standard NFPA75.
While every care has been taken to ensure the completeness and accuracy of this manual, GE accepts no responsibility or
liability for any loss or damage resulting from the use of the information contained in this document.
This document shall not be copied nor reproduced without the permission of GE.
Due to technical improvements, some of the information contained in this manual may be changed without notice.
1.2 SAFETY WARNINGS AND SYMBOLS
The text of this manual contains warnings to avoid risk to persons, to avoid damages to the UPS system and the supplied
critical loads. Do not proceed beyond these warnings if you do not fully understand or are not able to meet the mentioned
conditions. The non-observance of the warnings reminding hazardous situations could result in human injury and
equipment damage.
Please pay attention to the meaning of the following warnings and symbols.
Safety warnings
WARNING! Refers to procedures or operations which, when not correctly performed, could cause personal injury
or serious damage to the system.
CAUTION The product may be in danger: when procedures or operations are not correctly performed, damage
to the product may be the result.
NOTE Warns the user about important operations or procedures described in this manual.
Safety Symbols
DANGER OF ELECTRICALLY LIVE PARTS
Related to all situations with potentially hazardous voltage.
SAFETY WARNING
This symbol is used for Warnings, Cautions and Notes.

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1.3 SAFETY RULES
CAUTION! RISK OF ELECTRIC SHOCK
The UPS has an internal battery supply with a nominal voltage of 72Vdc. The appliance outlets may be
electrically live, even when the UPS is disconnected from the mains.
The UPS contains potentially hazardous voltages. Do not open the unit, there are no user serviceable
parts inside.
CAUTION
There may be damage to the equipment if procedures and practices are not strictly observed and
followed.
NOTE
Do not attempt to service the UPS unless you have had proper training. Refer all maintenance and
servicing to properly qualified, skilled and competent service personnel.
Qualified, skilled personnel are persons who (because of their training, experience, and position as well as their knowledge of
appropriate standards, regulations, health and safety requirements and working conditions) are authorised to be
responsible for the safety of the equipment, at all times whilst carrying out their normal duties and are therefore aware of,
and can report, possible hazards (observe IEC 60364 and national wiring regulations and accident prevention rules).
1.4 TRANSPORT / STORAGE
WARNING!
Please consider the weight of the UPS. Lift the box with the help of a second person; never try to lift it
by yourself!
No liability can be accepted for any transport damage when the equipment is shipped in non-original packaging.
Store the UPS in a dry location with the batteries in a fully charged state. Storage temperature must be within -4 and
122F (-20 and +50 C). If the unit is stored for a period exceeding 3 months, optimal battery lifetime is obtained if the
storage temperature does not exceed 86F (30C).
If the unit is stored for an extended period of time, the batteries must be recharged periodically. Connect the unit to a
wall outlet and recharge the batteries for 24 hours:
- if the storage temperature is within -4 and 86F (-20 and +30°C): every 12 months,
- if the storage temperature is within -4 and 122F (-20 and +50°C): every 3 months.
CAUTION
In case of storage, pay attention to:
1.5 FCC COMPLIANCE STATEMENT
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment
is operated in a residential environment. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment under
FCC rules.

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2INTRODUCTION
2.1 INTRODUCTION
The GE (General Electric) VH Series UPS, a truly on-line uninterruptible power supply, protects your equipment from all
forms of power interference, including complete power failures.
2.2 INTENDED USE
Uninterruptible Power Supplies (UPS) are designed to protect sensitive electronic equipment such as computers and
telecommunications equipment.
CAUTION
DO NOT plug household appliances such as electric heaters, toasters or vacuum cleaners into the UPS.
The UPS output is intended to be used only for electronic loads such as computers and
telecommunications equipment.
The technical data as well as information concerning connecting requirements can be found on the rating label and in
this document and shall be strictly observed.
2.3 WARRANTY
GE, operating through its authorised agents, warrants that the standard products will be free of defects in materials and
workmanship for a period as per contract specifications, starting from the date of the invoice.
NOTE
This warranty does not cover failures of the product which result from incorrect installation, misuse,
alterations by persons other than authorized agents, or abnormal operating conditions.
2.4 DIAGRAM
Fig. 2.4: Diagram

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3INSTALLATION
3.1 PACKAGE CONTENTS
The UPS shipping box contains:
VH Series UPS
1 plastic front panel
1 USB cable
REPO Connector (see 3.4.4 / 4.4.14)
1 CD ROM with UPS monitoring software (see
chapter 5) and its manual
This manual
Inspect the UPS for damage after unpacking. If any damage is present please immediately notify the carrier and place of
purchase.
WARNING! In case of recognizable damage:
DO NOT connect any voltage to the unit
DO NOT put the unit into operation
Condensation may occur if the UPS system is moved directly from a cold to a warm environment. The UPS system must
be absolutely dry before being installed. Please allow an acclimatization time of at least two hours prior to installation.
Save the original packing material. No liability can be accepted for any transport damage when the equipment is shipped
in non-original packaging.
3.2 INSTALLATION RULES
NOTE
Before making any connection and switching on the VH Series UPS, please check the following conditions:
Your mains supply is 208 Volts and 50/60 Hz.
The total power demand of the connected equipment does not exceed the rated output power of the VH Series UPS
(refer to section 8 for the ratings).
The UPS is intended to be used in normal domestic and office situations.
The UPS must be powered from a single phase grounded wall outlet. This socket-outlet shall be installed near the
equipment and shall be easily accessible. Do not use extension cords.
Place cables in such a way that no one can step on or trip over them.
Avoid locations that are excessively humid, near water, near heat sources or in direct sunlight.
The ambient temperature should not exceed 104F (40C). Optimal battery lifetime is obtained if the ambient
temperature does not exceed 86F (30C).
It is important that ventilation air can move freely around and through the unit. Do not block the air vents.
Do not plug appliances such as electric heaters, toasters and vacuum cleaners into the UPS. The UPS output can be used
only for electronic loads such as computers and telecommunications equipment.
Be careful when connecting laser printers: be sure that the demanded power does not exceed the capacity of the UPS.
The sum of the leakage currents of the UPS and the connected loads should not exceed 3.5mA.
Connect only to short circuit and over-current protection branch circuit rated in accordance with the National Electric
Code, ANSI/NFPA 70, see following table:
UPS model
Branch protection
VH2000 208V & VH3000 208V
20A
CAUTION
To reduce risk of fire, connect the UPS only to a circuit provided with fuse values according to the
above

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3.3 REAR PANEL
Figure 3.3 shows the rear panel of the VH2000/3000 208V.
The differences between the VH2000 and VH3000 are clearly indicated in the text below.
1 Input plug
AC mains supply to the UPS
Type: NEMA L6-20P
VH2000 208V: max. rating 10.4A
VH3000 208V: max. rating 15.2A
2 Input thermal circuit breaker: 20A
Protects the UPS from damage caused by
high input currents
3 Appliance outlets
To connect the loads to the UPS.
Type: NEMA 6-20R
VH2000 208V: rating 9.7A
VH3000 208V: rating 14.5A
4 Appliance outlets
To connect the loads to the UPS.
Type: NEMA L6-20R
VH2000 208V: rating 9.7A
VH3000 208V: rating 14.5A
5 DC connector
To connect a battery extension pack for
extended battery runtime
6 Fan(s)
Electronically controlled cooling fan(s).
Make sure ventilation air can move freely
around and through the UPS.
Fig. 3.3: Rear panel VH2000/3000 208V
7 USB port
See 5.1 for more information
8 RJ11 port
See 5.2 for more information
9 REPO
(Remote Emergency Power OFF)
3.4 INSTALLATION & CONNECTIONS
3.4.1 Preparation
Mount the front panel that came with the UPS
to the unit by simply pressing, as shown in
figure 3.4.1.
3.4.2 Connecting interface devices
If you do not want to use the communication
capabilities of the UPS, please skip this
section and proceed with 3.4.3.
The UPS is equipped with two interface ports: a
USB port and an RJ11 port, allowing advanced
communication between the UPS and a
computer (network). Refer to section 5 for
more detailed information.
Fig. 3.4.1: Mounting front panel
6
8
7
5
9
2
1
4
3

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3.4.3 Connecting power and load
NOTE
The UPS output sockets can be live as soon as the UPS is connected to the main power supply, even if
the UPS has not been switched on via the front panel.
The socket outlet shall be installed near the equipment and shall be easily accessible
NOTE
Grid supply is 208 Volt, 50/60 Hz, fused (see section 3.2)
1. Add up the power consumption (in VA) of the appliances that will be protected by the UPS (‘the load’) and make sure
that the resulting value does not exceed the VA output rating of the UPS. This way you ensure that the UPS is able to
supply the required output and prevent that an overload situation will happen.
2. Using the output cords (see note below) connect the load to the appliance outlets (fig. 3.4.3.a) of the unit. Spread the
loads over the appliance outlets as equally as possible. If you use a distribution box to connect more than one
appliance per outlet please take the maximum ratings of the appliance outlets into consideration. See 3.3.
3 Connect the mains cord of the UPS to a working, grounded AC wall socket outlet (fig. 3.4.3.b). The green LED ‘operation’
will blink now: mains power is available and the batteries are charging. If the LED does not blink but illuminates
continuously instead, press keypad ‘0’ for one second.
If both LEDs ‘operation’ and ‘alarm’ blink and the beeper sounds 1/2secs, phase and neutral are reversed at the
input of the UPS. Please read 4.4.13 and take appropriate measures.
Fig. 3.4.3.a: Connecting load Fig. 3.4.3.b: Connecting power
For best results, allow the UPS to recharge the batteries during a period of approx. 2 hours. It is acceptable to use
the UPS without first charging the battery, but the runtime may be reduced.
NOTE
To connect UPS and loads use Cables meeting the below requirements:
Detachable UL Listed, SJT Type flexible cord with grounding type plug, maximum 14.76 ft. (4.5m) long.
Cord type and ratings as per the table below:
UPS Model
AC Power Cord
UPS Outlets
Rating (Minimum)
Connection
VH2000 208V
250V / 20A
NEMA L6-20P
1 x L6-20R / 2 x 6-20R
VH3000 208V
1 x L6-30R / 2 x 6-20R

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3.4.4 Connecting REPO (Remote Emergency Power Off) switch
REPO can be used to remotely shut down the UPS using the connector provided on the rear panel of the UPS (9, fig. 3.3).
Figure 3.4.4 shows all suitable connections on the REPO Connector.
1. Remove the cable link from the male connector that came with the unit
2. Connect a switch to the male connector, the switch should be of Normally Closed type for normal operation.
3. Place the male connector to the connector on the rear panel of the UPS (9, fig. 3.3.)
4. When the switch is opened, the UPS will shut down. More information is given in section 4.4.14.
WARNING!
The REPO Contact is a Safety Extra Low Voltage Circuit. Connect it only to a SELV Circuit.
NOTE
Use standard Low Voltage Cable in accordance with National and local regulations.
Fig. 3.4.4: REPO connections
NOTE
To maintain the security of the SELV circuit be sure to use the following
(only for qualified, skilled and service personnel) :
Wire type: UL Style 1015, 86°F (10°C), 600 VAC
Minimum wire: AWG 26
Maximum wire: AWG 16
Torque: 3.0 lb-inch

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3.5 INSTALLATION OF A BATTERY EXTENSION PACK
With a battery extension pack you can increase the battery runtime of the UPS. If you do not install a battery extension
pack please skip this section and proceed with chapter 4.
NOTE
The battery extension packs are suitable if connectable to circuits directly connected to mains and
compliant with the following:
Nominal Voltage (Vdc): 72
Nominal Capacity (Ah): 14
Recharge Current (A): 1.5
The following actions must be performed by qualified and skilled personnel only.
1. Connect the DC connector of the battery pack to the DC socket of the UPS (fig. 3.5.a). You will hear a click when the
cable is properly connected. Block the DC connector: install the small locking plate that came with the battery
pack, and fasten it with the screw provided.
Fig. 3.5.a: Connecting the DC connector
2. Install the first battery pack under the UPS, and position additional packs next to it, according to figure 3.5.b.
Fig. 3.5.b: Connecting the battery packs

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4OPERATION
4.1 OPERATING PANEL
Fig. 4.1: Operating panel
switch / LED main function
1 - ‘on’ switch switches on the UPS, starts quick battery test (see 4.6)
2 - ‘off’ switch switches off the UPS
3 - LED ‘operation’ on when the UPS is operating
blinks if the UPS is in standby mode
4 - LED ‘on bypass’ on when the UPS operates in bypass mode: the incoming mains power is channeled
directly to the load
5 - LED ‘on battery’ on in case of battery operation: the mains power fails, and the internal batteries
supply the required power until either they are depleted or mains power returns.
6 - LED ‘alarm’ blinks in case of an alarm
7 - LED bar ‘runtime capacity’ the remaining available battery runtime for the actual load, in % of the maximum
runtime with the actual load
8 - LED bar ‘load’ indicates to what extent the output capacity of the UPS is used by the actual load. If
e.g. the 25% and 50% LED are on, the load exceeds 50% of the maximum load. If all
4 LEDs are on the unit operates in overload. As this is an abnormal situation the
alarm LED will blink as well.
More info in section 4.3.2 and 4.4.8.

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4.2 START-UP
4.2.1 Start-up, mains available
Via front panel:
press keypad 'I' (1, fig. 4.1) briefly; LED ‘operation’ (already slowly blinking) will at first blink faster and after a few
seconds it will illuminate continuously, indicating that the unit has started up.
Via UPS monitoring software:
startup after delay, see 4.4.12 for more information. The equipment connected to the UPS can now be switched on.
The UPS will not start-up if "Phase Neutral reversal" indication is present (see section 4.4.13).
4.2.2 Start-up, mains not available
If the mains input is absent (power cord not connected, or mains failure):
Press keypad 'I' until the buzzer sounds. The LEDs ‘operation’ and ‘on battery’ will illuminate. The UPS operates on battery: it
discharges the batteries. See 4.4.5 for further details about this operating mode.
4.3 USE: NORMAL OPERATION
4.3.1 Normal operation conditions
the mains supply is present,
the UPS is on,
the load does not exceed the capacity of the UPS and
the operating temperature is below alarm level
4.3.2 No-load shutdown
If this function is activated, the UPS will switch off during a mains failure when the load is less than 5% of the maximum load.
In this way unnecessary discharging of the batteries is avoided. The unit will automatically turn on again when mains power
is restored. The default setting of the no-load shutdown function is: disabled.
The setting can be changed using the UPS monitoring software. For more information please refer to the manual that
came with the software.
If the no-load shutdown function is activated and the load is smaller than the 5% threshold, the ‘25%’ load LED will blink to
warn you that the unit will switch off during a mains failure.
4.3.3 Output frequency
At power up default enabled "Auto" frequency detection updates output frequency setting by comparing it with input
frequency. Only stable 50 or 60 Hz frequencies are valid, otherwise previous setting is kept (60 Hz at first start up). Setting
output frequency to 50 or 60 Hz with the UPS monitoring software disables the "Auto" frequency detection.
NOTE
The unit can be used as a frequency converter: the input frequency range is 45-66Hz, the output
frequency is selectable 50/60Hz. If the unit is used as a frequency converter, the bypass function is no
longer available. As a result an audible alarm will be generated continuously (see 4.4.7).
To avoid this, we advise to disable the bypass.
WARNING!
Changing of the output frequency can cause severe damage of equipment connected to the
appliance outputs of the UPS: Be sure that the new frequency is suitable for the connected equipment!
Please refer to section 4.5 to set/check your output frequency.
4.3.4 Switching off
Via operating panel:
Press keypad ‘0’ (2, fig. 4.1) for 1 second. If the UPS is switched off the output will always be absent for a few seconds
to ensure that the connected equipment is able to reboot.
Using UPS monitoring software:
Shutdown after delay.
If electric isolation is required, unplug the power cord from the wall outlet.

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4.4 USE: STATUS AND ALARM INDICATIONS
o status indications the operating mode
! low priority alarms abnormal operating situations
!! high priority alarms situations in which the actual output voltage of the UPS is no longer guaranteed; immediate
action should be taken
Situation
Indicators on front panel (fig. 4.1)
o
Standby (4.4.1)
- - -
o
Startup pending (4.4.12)
- - - - -
o
Normal operation (4.4.2)

0 - 4

0 - 3

o
eBoost operation (4.4.3)

0 - 4

0 - 3

!!
On bypass (4.4.4)


- - - - -
0 - 4

0 - 4

- - - - -
hi
o
On battery (4.4.5)


0 - 4

0 - 4

- - - - -
lo
!!
Battery low (4.4.6)


- - - - -
25%
- - - - -
0 - 4

- - - - -
hi
!
Bypass out of limits
(4.4.7)

- - - - -
- - - - -
0 - 4

0 - 4

- - - - -
lo
!!
Overload (4.4.8)

- - - - -
0 - 4

4 
- - - - -
hi
!
Bad battery (4.4.9)

- - - - -
- - - - -
0 - 4

0 - 4

- - - - -
lo
!/!!
General alarm (4.4.10)

- - - - -
0 - 4

0 - 4

- - - - -
lo / hi
o
Shutdown pending
(4.4.11)
- - - - -
0 - 4

0 - 4

- - - - -
lo
o
No-load shutdown
enabled, load < 5% (4.3.2)

25%
- - - - -
!!
Input Phase-Neutral
reversed (4.4.13)
- - - - -
- - - - -
- - - - -
hi
!!
REPO (Remote Emergen-
cy Power Off) (4.4.14)




0 - 4

0 - 4

- - - - -
hi
Operating modes and corresponding indications, see 4.3.2 and 4.4.1 –4.4.14.
- - - - = intermittent
 = continuous
0 - 4 = number of LEDs that can be on, depending on runtime capacity / load
25% = LED 25% is blinking
hi = 1 / 2 secs
lo = 1 / 5 secs
mute buzzer: press push button ‘I’ briefly

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4.4.1 Standby
The UPS output is off, but the batteries are charging, see 3.6.2 step 5
4.4.2 Normal operation
See 4.3.1.
4.4.3 eBoost operation
As long as the mains is suitable for the load, the UPS is able to operate in a “green”, high efficiency operating mode: the UPS
supplies the load from bypass, while keeping ready for operation in double conversion. You can adjust the setting of the
eBoost function using the Configuration tool provided on CD.
The output voltage range is -10% ~ +5% of nominal, while the frequency range is +/-5% of nominal (the latter can be
configured to +/-1%). Both voltage and frequency have to be OK for 5 seconds before eBoost operation is accepted. To
protect the load from repetitive oscillations of an unstable grid, eBoost operation will be inhibited for 10 minutes if mains is
disturbed more than twice in 30 seconds.
4.4.4 On bypass
The UPS is equipped with an automatic bypass switch. This switch automatically transfers the load to the mains if the UPS is
unable to deliver the demanded output power due to overload or over temperature.
If all 4 load LEDs illuminate, bypass operation is caused by an overload. If only green load LEDs illuminate (the red load LED is
off), bypass operation is caused by over temperature. Take appropriate measures: reduce load and/or temperature.
The UPS will switch back to normal operation when the overload has been removed or the temperature has dropped below
alarm level.
If a power failure occurs during bypass operation, the UPS will switch to battery operation and eventually, when the
batteries are depleted, output power is lost.
The bypass function can be disabled - see 4.4.7 and 4.5 for further details.
Fail safe bypass operation: if the UPS becomes defective, the load may be switched to bypass (provided that the bypass
function was not disabled). As the status of the UPS is unknown in this situation the indications on the operating panel may
differ.
4.4.5 On battery
The UPS uses the energy stored in the batteries: see section 8 ‘Batteries - runtime’.
The runtime capacity LED bar will show the remaining runtime. The UPS will shut down:
after the batteries have been discharged (automatic restart), or
if keypad 'O' is pressed (restart via front panel required) or
if a 'UPS shutdown' command is given by the computer (automatic restart)
Automatic restart depends on the setting of the ‘auto restart’ function:
- if set ‘on’ the UPS will automatically restart when the mains returns
- if set ‘off’ a manual restart is required, as in 4.2.1.
As default the ‘auto restart’ function is ‘enabled’. The setting can be changed using the UPS monitoring software. For
more information please refer to the manual that came with the software.
4.4.6 Battery low (end of runtime)
If during ‘on battery’ operation the 25% LED starts blinking, the batteries are nearly discharged: the remaining runtime is less
than 2 minutes (default setting, adjustable via the UPS monitoring software). Controlled shutdown of any computer
equipment is absolutely necessary at this point. If the UPS operates at 100% load, the shutdown procedure should be
completed within 2 minutes after the 'battery low' alarm started. If only part of the output capacity of the UPS is used this
period can be longer, with aged batteries this period can be shorter.
When the batteries are fully discharged, the UPS is no longer able to power the connected equipment.
4.4.7 Bypass out of limits
The mains voltage or mains frequency are outside bypass input tolerance but inside UPS input tolerance (see section 8).
Bypass operation is inhibited: if for whatever reason the UPS is not able to deliver the required output, output power is lost. If
the input frequency is often out of tolerance –during which bypass operation is inhibited and an alarm is generated –it may
be useful to disable the bypass function after which the unit operates as a UPS without automatic bypass switch. See 4.5.

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4.4.8 Overload
The demanded power exceeds the normal capacity of the UPS. The alarm occurs when the load is > 100%. If the load
exceeds 150% the UPS will immediately switch to bypass, assuming that the conditions for a transfer to bypass are fulfilled.
If an overload condition between 110-150% persists, the UPS will also switch to bypass operation.
During an overload the UPS may automatically switch off within a few minutes (load dependent) and output power is lost:
if a transfer to bypass is inhibited (see 4.4.7), or
if the bypass function has been disabled (see 4.5), or
if the UPS operates on battery (see 4.4.5).
To avoid these problems, be absolutely certain that the power demands of the protected equipment are within the limits of
the UPS.
4.4.9 Bad battery
Either the batteries are almost chemically worn out or the battery wiring, including the battery fuse, is faulty. If the batteries
are aged, they must be replaced as soon as possible to ensure full protection for your equipment. Perhaps the 'bad battery'
alarm occurs after a test which you started immediately after installation or after a power failure. In this case the alarm may
be incorrect as the batteries have been (partly) discharged during transport/storage or during a power failure. Allow the UPS
to recharge the batteries. See also 4.6.
4.4.10 General alarm
‘General alarm’ comprises a group of alarms; the buzzer behaviour indicates which alarm is active:
1 / 2 secs: General fault
Overload (see 4.4.8)
Over temperature
Output out of tolerance
1 / 5 secs: Charger failure
Bypass out of limits (see 4.4.7)
Bad battery (see 4.4.9)
4.4.11 Shutdown pending
The UPS monitoring software allows you to switch the UPS into standby mode after a programmable delay time. During
countdown the ‘operation’ LED will blink 2x per second and the buzzer will beep every 5 seconds.
4.4.12 Startup pending
The UPS monitoring software allows you to start up UPS after a programmable delay time. During this delay time the
‘operation’ LED will blink 2x per second.
4.4.13 P-N (Phase-Neutral) reversal
If the P-N reversal indication is enabled, the UPS will indicate whether the voltage between Neutral and Earth (Ground) at the
UPS input exceeds a certain voltage (i.e. Phase and Neutral at the UPS input are reversed in an earthed/grounded Neutral
system). In this potentially unsafe situation both LEDs ‘operation’ and ‘alarm’ will blink fast and the buzzer will sound.
Reversing the mains plug will prevent this unsafe situation and will cancel the alarm. In case of non-earthed/grounded
Neutral system this indication should be disabled.
The P-N reversal indication is by default enabled. Changing of the setting is described in section 4.5.
4.4.14 REPO (Remote Emergency Power Off)
The REPO function can be used to remotely shut down the UPS using the REPO connector provided at the rear side of the
UPS (9, fig. 3.3). See section 3.4.4 for installation instructions.
The REPO functionality is by default disabled and can be enabled by using the Configuration tool.
If a normally closed switch, connected to the REPO connector, is opened, the UPS will shut down. All LEDs on the front
panel will be on and the buzzer will beep 1x / 2 seconds.
After a REPO shutdown, restart the UPS as follows:
1. Close the switch connected to the REPO connector.
2. Press the “ON” switch briefly (1, fig. 4.1).

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4.5 USE: SETUP MODE
The setup mode can only be entered if the UPS is in ‘standby’ -mode: connected to a live wall outlet and switched off (LED
'operation' blinks).
1 Press keypad 'O' and keep it pressed while pressing 'I' simultaneously. Release both buttons.
The setup sequence starts with the setup of the output voltage, indicated by a blinking LED ‘operation’.
2 Scroll through the four functions with keypad 'I', one of the LEDs ‘operation’, ‘on bypass’, ‘on battery’ or ‘alarm’ will
blink, indicating which function has been selected (see fig. 4.5).
3 Toggle the setting of the selected function by pressing switch 'O'. The LEDs on the LED bar ‘runtime capacity’ shows
the setting.
4 Store the new settings and leave the setup mode: press keypad '0' and keep it pressed while pressing 'I'
simultaneously. Release both buttons.
Fig. 4.5: Setup menu
*DEFAULT SETTING
60 Hz
auto*
50 Hz
Output
frequency
disabled*
enabled
Bypass
enabled*
disabled
Output voltage
230 Vac
208 Vac*
220 Vac
Phase –Neutral
reversal
240 Vac

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4.6 BATTERY MANAGEMENT
Maximum battery life and reliability are obtained by the following features:
Quick battery test
The quick battery test checks whether the batteries and their wiring are healthy. If a quick battery test shows that the
batteries are close to being worn out, a 'bad battery' alarm will be generated (see 4.4.9). Batteries have to be replaced as
soon as possible.
Automatic battery test
The VH Series UPS conducts periodic automatic battery tests:
5 hours after manual switch-on
5 hours after return of mains following any power failure, and
30 days from the last battery test
Manual battery test
A quick battery test can be initiated manually
- either via the front panel, by pressing pushbutton ‘I’ for 5 seconds during normal operation,
- or via UPS monitoring software. For details please refer to the manual of your software.
NOTE
If the test is started manually immediately after installation or after a power failure, the UPS may
generate a false 'bad battery' alarm as the batteries have been (partly) discharged during
transport/storage or during a power failure.
Deep battery test
A deep battery test, to be initiated through the UPS monitoring software, checks the actual battery capacity in order to
ensure accurate runtime prediction. During a deep battery test the batteries will be discharged.
NOTE
When executing a deep battery test the available runtime in case of mains failure may be shorter than
normal. Don’t execute this test if reduced battery runtime is not acceptable.
Temperature compensated battery charging
This feature adjusts the battery charge voltage according to the ambient temperature. As a result poor charging of the
batteries under low temperature conditions and overcharging of the batteries under high temperature conditions are
avoided.
Load dependent battery-end-voltage
The allowable final battery voltage depends on the discharge current: the higher the current, the lower the 'end-of-
discharge' battery voltage. In this way maximum battery capacity is obtained without over-discharging. Over-discharging
would result in shortened service life and failure to recover normal capacity.
Automatic boost charge
This feature reduces the battery recharge time considerably: totally depleted batteries will be recharged to 90% in approx. 3
hours, provided that discharging took place at 100% load.

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5COMMUNICATION
CAUTION! RISK OF ELECTRIC SHOCK
The UPS has an internal battery supply with a nominal voltage of 72Vdc. The appliance outlets may be
electrically live, even when the UPS is disconnected from the mains.
The UPS contains potentially hazardous voltages. Do not open the unit, there are no user serviceable
parts inside.
WARNING!
Connect only Safety Extra Low Voltage (SELV) Circuits to any of these communication I/O ports.
5.1 USB PORT
The USB port is a plug-in interface port which enables advanced communication between the UPS and the computer (UPS
software required). The interface port is operative as soon as the mains power cord is plugged into a live wall outlet, even if
the UPS is switched off.
For more information please refer to the user manual that comes with the interface software. We strongly recommend to
use only original GE software products in combination with the interface port.
NOTE
The change of some settings can cause the unit to switch from bypass to standby and output power is lost.
5.2 RJ11 PORT
The RJ11 port is a plug-in contact interface port.
Pin # Function
1 Mains failure
2 General alarm *)
3 Battery low
4 On bypass
5 Remote UPS shutdown / RxD
6 GND
*) Active if the output voltage of the UPS is no longer
Fig. 5.2
guaranteed due to other circumstances than already indicated by pin 1-3-4. The alarms are listed in section 4.4.10
Absolute Maximum Ratings
DC Characteristics
MIN
MAX
CONDITION
MIN
MAX
VO
Voltage applied on any output pin
-0.2V
48V
VIH
High-level input voltage
4.0V
IO
Output sink current
30mA
VIL
Low-level input voltage
0.4V
VI
Voltage applied on input pin
-25V
25V
VOL
Low (active) output voltage
Io<1mA
0.4V
Note: Exceeding these ratings may damage the device or anyway affect its reliability
5.3 USB / RS232 / RELAY INTERFACE CARD (OPTION)
The card is equipped with
•USB port as described in 5.1
•RS232 port
•potential free change-over relay contacts for the following alarms: mains failure/general alarm/battery low/bypass active
For more information please refer to the user manual that comes with the interface card.
5.4 SNMP / WEB INTERFACE CARD (OPTION)
The SNMP card makes the UPS ‘SNMP manageable’: it allows the data interface to be connected directly to an Ethernet
network. For more information please refer to the user manual that comes with the interface card.

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6MAINTENANCE
6.1 SAFETY
DANGER
When the UPS operates, all parts of the electronics are directly connected to the utility and high
voltages are present on all internal parts, including the battery. Even after disconnection from the
utility, all parts inside the UPS, including the battery, conduct dangerous voltages (except the RJ11 and
USB output). For your safety, only authorized service personnel may remove the cabinet cover.
Refer to section 1.3 for further details.
6.2 GENERAL
The GE VH Series UPS is virtually maintenance free: take care of proper environmental conditions and keep air
inlets/outlets free of dust. Please read 3.2.
NOTE
Leave maintenance and service work to qualified and skilled personnel only.
Refer to section 1.3 for further details.
6.3 RECYCLING THE UPS AT THE END OF SERVICE LIFE
NOTE
This product has been designed to respect the environment, using materials and components
respecting eco-design rules. It does not contain CFCs (Carbon Fluorine Chloride) or HCFCs (Halogen
Carbon Fluorine Chloride).
The batteries contain lead, which is a harmful substance for the environment.
Proper disposal or recycling of the batteries is required.
Refer to your local codes for disposal requirements.
Don’t throw batteries away, treat them as harmful waste.
GE, in compliance with environment protection recommends that the UPS equipment, at the end of its
service life, must be recycled conforming to the local applicable regulations.
6.4 BATTERIES
The service life of the battery is from 3 to 6 years, depending on the operating temperature and on the number of
discharge cycles.
As a healthy battery is critical to the performance of the UPS, an automatic quick battery test is performed regularly to
ensure failsafe operation (see section 4.6). When the condition of the battery is critical, a 'bad battery' alarm will be
activated (see 4.4.9). Batteries are to be replaced as soon as possible.
NOTE
Under certain circumstances a manual battery test can result in a false alarm: please see 4.6 'quick
battery test'.