GE NetPro Series User manual

NetPro
Uninterruptible Power Supply
2000 - 4000 VA
Manufactured by:
GEDigitalEnergy
General Electric Company Telephone +41 (0)91 / 850 51 51
CH – 6595 Riazzino (Locarno) Fax +41 (0)91 / 850 51 44
Switzerland Website www.gedigitalenergy.com
GE Digital Energy
Technology for the Digital World. ver 4.0 - GB NetPro UPS
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OPM_NPE_XXX_2K0_4K0_1GB_V040 1NetPro 2000-4000: user manual 4.0 (GB)
GE Digital Energy
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USER MANUAL
NetPro
Uninterruptible Power Supply
Uninterruptible Power SupplyUninterruptible Power Supply
Uninterruptible Power Supply
2000 - 4000 VA
2000 - 4000 VA2000 - 4000 VA
2000 - 4000 VA
Please read these instructions carefully before installation and start-up of the NetPro UPS.
Keep this manual in a safe place for future reference.
CONTENTS
1 INTRODUCTION............................................................................................................2
1.1 Introduction
1.2 Safety Rules
1.3 Transport / Storage
2 INSTALLATION..............................................................................................................2
2.1 Installation Rules
2.2 Installation Procedure
3 OPERATION...................................................................................................................4
3.1 Description of Front Panel
3.2 Start-up
3.2.1 Start-up, mains available
3.2.2 Start-up, mains not available (‘battery start’)
3.2.3 Start-up with programmed runtime (autonomy time)
3.3 Use: Normal Operation
3.3.1 Normal operation conditions
3.3.2 Normal operation indications
3.3.3 Auto-off (no-load shutdown)
3.3.4 Automatic bypass switch
3.3.5 Switching off
3.4 Use: Screen Menus
3.4.1 Default menu
3.4.2 Status messages and alarm messages
3.4.2.1 Status messages
3.4.2.2 Low priority alarm messages
3.4.2.3 High priority alarm messages
3.4.3 Setup menu
3.5 Runtime: calculation and indication
3.6 Other Features
3.6.1 Shutdown
3.6.2 Programmed shutdown
3.6.3 Front panel test
3.6.4 Quick battery test
3.6.5 Battery calibration test
3.6.6 Deep battery test
4 COMMUNICATION ......................................................................................................16
4.1 RS232 Port
4.2 Relay Interface Card (option)
4.3 SNMP Interface Card (option)
5 OPTIONAL FEATURES...............................................................................................17
5.1 Extended Runtime (NetPro 2000/3000)
5.2 Isolation Transformer (NetPro +)
5.3 PowerFLAG SerVICe Box for Modem Connection
6 MAINTENANCE............................................................................................................17
6.1 General
6.2 Batteries
7 TROUBLESHOOTING.................................................................................................18
8 SPECIFICATIONS........................................................................................................19
© General Electric Digital Energy. All rights reserved; reproduction without permission prohibited. This manual may be subject to
change; no liability can be accepted for any error or omission.
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OPM_NPE_XXX_2K0_4K0_1GB_V040 2NetPro 2000-4000: user manual 4.0 (GB)
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1.1 Introduction
The GE (General Electric) Digital Energy NetPro UPS, a truly on-line uninterruptible power supply,
protects your equipment from all forms of power interference, including complete power failures.
1.2 Safety Rules
!CAUTION: RISK OF ELECTRICAL SHOCK. The UPS contains batteries. 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 UPS, there are no user
serviceable parts inside.
!All maintenance and service work, including replacement of the batteries, should be
performed by qualified service personnel.
1.3 Transport / Storage
!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 -20 +45 "C. If the unit is stored for a period exceeding 3 months, optimal battery
lifetime is obtained if the storage temperature does not exceed 25°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 -20 and +30°C: every 3 months,
- if the storage temperature is within -20 and +45°C: every month.
The shipping box contains a NetPro UPS, two IEC male-female power cords, a data cable, a CD ROM
and this manual. Inspect the UPS for damage after unpacking. If any damage is present please
immediately notify the carrier and place of purchase.
IMPORTANT:
Before making any connection and switching on the NetPro UPS, please check the following
conditions:
!your mains supply is 220 - 240 Volts and 50 (if the mains frequency is 60Hz, the output frequency
of the UPS can be changed, see section 3.4), and
!the total power demand of the connected equipment does not exceed the rated output power of
the NetPro UPS (indicated on the rating label) (6, fig. 1).
WARNING
Connecting the UPS output to neutral or ground will result in a malfunctioning UPS, unless your
unit is a "NetPro+", i.e. equipped with an isolation transformer.
2.1 Installation Rules
!The UPS is intended to be used in normal domestic and office situations.
!Protect the UPS, according to the wiring rules, with a 16A (NP 2000/3000VA) or 25A
(NP 4000VA) D-type fuse.
!The UPS must be powered from a single phase wall outlet equipped with protective earth. Do not
use extension cords.
!Avoid locations that are excessively humid, near water, near heat sources or in direct sunlight.
!The ambient temperature should not exceed 40"C. Optimal battery lifetime is obtained if the
ambient temperature does not exceed 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.
!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.
1 - Introduction
2 - Installation

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2.2 Installation Procedure
1 Switch off your computer, and unplug it from the
socket-outlet.
2NetPro 2000: Disconnect the power cord from the
computer (rating 250Vac/10A) and connect this cord
to the mains input socket (2, fig. 1) of the UPS. See
fig. 2.
NetPro 3000/4000 models are equipped with a fixed
power cord (11, fig. 1).
3 Using the output cords provided, connect the
computer equipment to the appliance outlets (4, fig. 1)
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
note that the maximum AC-current rating of each
appliance outlet is 10A. See fig. 3.
Output 4a is programmable: see 3.4.3.
If your UPS is a 4000VA model please proceed with
step 5.
NetPro 2000/3000 only.
4 Battery extension pack(s) can be installed to
increase the battery runtime. Connect the DC
connector of the battery pack (9, fig. 1/4) to the DC
socket of the UPS (7, fig. 1/4). You will hear a click
when the cable is properly installed. Block the DC
connector: install the small locking plate (9a, fig. 4)
that came with the battery pack, and fasten it with
the screw provided. Using the DC connector of the
battery pack (10, fig. 1) you can install a second,
third, etc. pack. See 5.1 for more information.
5 Make sure the on/off switch (12, fig. 1) at the rear of the UPS is off, i.e. in position ‘0’, and connect
the mains cord of the UPS to a working, AC wall socket outlet equipped with a protective earth
connection. The fans start rotating: mains power is available and the batteries are charging.
6 For best results, allow the UPS to recharge the batteries during a period of approx. 12 hours. It is
acceptable to use the UPS without first charging the battery, but the runtime may be reduced.
7 For advanced communication possibilities, the RS232 interface port (3, fig. 1) can be connected
to a computer system and/or optional interface cards (5, fig. 1) can be added. See chapter 4.
Batt. extension pack NetPro 2000VA NetPro 3000/4000VA
fig. 2
fig. 3
fig. 4
9a
7
9
68
24
6
10
13
11
5
16
12 4a 3
7
97
RESET
OK
12 4
3000 VA
fig. 1

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3.1 Description of Front Panel
13 Green LED 'operation'
The UPS operates and supplies the load.
14 Red LED 'alarm'
High priority alarm situation. See 3.4.2.3.
15 Yellow LED 'progr. shutdown'
(= programmed shutdown)
See 3.6.2.
16 Yellow LED 'weak mains'
See 3.4.2.2.
17 LCD screen
2x16 characters, shows UPS system data, status
messages, alarm messages, settings. The language
is selectable: English (default), German, French,
Italian, Spanish. Section 3.4.3 describes the
selection procedure.
18-20 Push-buttons
With the button keypads '#
##
#' (18) and '$
$$
$' (20) you can
scroll through the several screens, with keypad 'OK'
(19) a selection is confirmed. Keypad activity is
accompanied by a beeping buzzer. If there is no
keypad activity during 20 seconds the LCD screen
will return to a default screen.
3.2 Start-up
3.2.1 Start-up, mains available
1 As soon as the power cord is plugged into a working wall outlet, the battery charger is active: the
batteries are being charged.
2 Switch on the UPS with the 'on/off' switch (12, fig. 1) at the rear of the unit; the green LED
'operation' will illuminate.
3 The equipment connected to the UPS can now be switched on. (The 'soft start' capability of the
UPS allows that the on/off switch of the UPS can be used as a 'master switch': all equipment
protected by the UPS can be switched on by simply switching on the UPS. The simultaneously
occuring inrush currents of the loads do not immediately cause bypass operation.)
3.2.2 Start-up, mains not available (battery start)
If the mains input is absent (power cord not connected, or mains failure):
1 Turn the on/off switch (12, fig 1) into position 'I'. The following screen will appear:
If the 'OK' key (19, fig. 5) is pressed within 5 seconds, the UPS will start. Pressing key $
$$
$(20,
fig. 5), or waiting 5 seconds, will abort the start-up attempt. The UPS operates on battery: it
discharges the batteries. The UPS will stop delivering output power at the end of the runtime
unless the mains input is available by that time
!"##$%&'(#"%#')
*+''''''''''&$(
fig. 5 Front panel
3 - Operation
20
19
17
16
15
18
14
13

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3.2.3 Start-up with programmed runtime (autonomy time)
If a start-up runtime has been programmed (see section 3.4.3 Setup menu) and the batteries do not
contain sufficient energy to provide this runtime at the moment of start-up, the following screen will
appear:
If 'OK' (19, fig. 5) is pressed the message is ignored and the UPS will start up. If no key is pressed, the
UPS will wait until the batteries have been sufficiently charged to guarantee the programmed runtime, and
only then start up. Calculation of the runtime is based on the assumption that the UPS supplies a 100%
load.
This feature is not active during a 'battery start' (see above).
3.3 Use: Normal Operation
3.3.1 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
3.3.2 Normal operation indications:
!the green LED 'operation' is continuously on,
!LEDs 'weak mains', 'progr. shutdown' and 'alarm' are out,
!the beeper is silent and
!the liquid crystal display (LCD) shows a default screen (see 3.4.1)
3.3.3 Auto-off (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: activated. Changing of the setting is described in 3.4.3.
3.3.4 Automatic bypass switch
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
overtemperature. 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. If the UPS functions under
overload or overtemperature conditions it may not be able to protect the load. See also 3.4.2.3.
The bypass function can be disabled: see 3.4.3.
3.3.5 Switching off
1 Turn the 'on/off' switch (12, fig. 1) at the rear of the unit into position ‘0’. 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.
2 If electric isolation is required, unplug the power cord from the wall outlet.
The unit can be switched off in a programmed way: see section 3.6.2.
",#+*-'#++'.+/
'''''(#"%#')

OPM_NPE_XXX_2K0_4K0_1GB_V040 6NetPro 2000-4000: user manual 4.0 (GB)
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3.4 Use: Screen Menus
Operation of the NetPro UPS is done via the push-buttons and the LCD screen on the front panel. In
addition 4 LEDs inform the user about operating conditions.
Furthermore some functions of the UPS can be programmed via the RS232 communication port. For
more information see section 3.6 and chapter 4.
The messages displayed on the LCD screen can be divided into three menus:
• Default menu
• Status and alarm menu
• Setup menu
If the UPS operates under normal conditions, the LCD shows the standard menu. The message shown
depends on the operating mode of the UPS. From any menu, the LCD screen will always return to the
standard menu after a push-button inactivity time-out of 20 seconds.
If the operating conditions change, e.g. by a mains failure or rise of temperature, a ! mark will appear in
the right lower corner of the display. With key #
##
#(18) you can enter the status and alarm screens.
The setup menu allows you to program the UPS. To enter the menu press #
##
#(18) until the menu is
reached. You can scroll through the individual setup screens with $
$$
$(20) and #
##
#(18).
3.4.1 Default menu
Under normal operating conditions (see 3.3.1), the LCD shows a default screen (the mentioned values
are examples):
230V = the true RMS input voltage
12 = time until sleep in minutes, if activated
23min = the calculated available runtime, at present load. The
calculation is based on two figures: the capacity of the
battery set and the energy consumption of the actual
load. If the load increases, the runtime will decrease and
the runtime figure in the display will be refreshed within a
second.
1520VA = actual output power of the UPS* in VA
912W = actual output power of the UPS* in W
* Display will only show the output power if it exceeds 25VA.
If the NetPro UPS operates on battery, the screen shows:
- - -V = The input voltage is too low to be measured
12 = time until sleep in minutes, if activated
23min = the calculated available runtime, at present load. The
calculation is based on two figures: the capacity of the
battery set and the energy consumption of the actual
load. If the load increases, the runtime will decrease and
the runtime figure in the display will be refreshed within a
second.
1520VA = actual output power of the UPS* in VA
912W = actual output power of the UPS* in W
! = blinking signal in case of status change or new alarm
Press #
##
#(18) to display the accompanying message(s),
see 3.4.2. The ! sign will disappear from the display, until
the next status change or new alarm.
* Display will only show the output power if it exceeds 25VA.
If the NetPro UPS operates on bypass the default screen will change into:
225V = the true RMS bypass input voltage
Bypass = operating mode: bypass operation
0123''40'''01567
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;

OPM_NPE_XXX_2K0_4K0_1GB_V040 7NetPro 2000-4000: user manual 4.0 (GB)
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3.4.2 Status messages and alarm messages
The NetPro UPS alerts the user with a blinking ! signal on the LCD that the status has changed or that an
alarm situation occurs. The accompanying screen messages appear after the push-buttons $
$$
$or #
##
#have
been pressed. The blinking ! signal will disappear from the display (see also 3.4.1).
3 kinds of messages can be displayed on the LCD:
- status indications indicate the UPS operating mode
(3.4.2.1)
- low priority alarms indicate abnormal operating situations; the screen message is accompa-
(3.4.2.2) nied by a 1x per 8 secs. sounding buzzer. The buzzer is resettable with the
OK button (19), but only after the default screen is displayed again.
In case of 'weak mains' the yellow LED (16) on the front panel illuminates
and the buzzer remains silent.
- high priority alarms indicate situations in which the connected load is at risk as a proper output
(3.4.2.3) voltage of the UPS is no longer guaranteed; immediate action should be
taken. The screen message is accompanied by a red LED 'alarm' and a 1x
per second sounding buzzer. The buzzer is resettable with the OK button
(19).
Table 1 shows an overview of all messages
Message text Kind of message
Status indication High priority
alarm Low priority alarm
On line !
On battery !!
On bypass !!
Error !
Battery low !
Fan error (NetPro 3/4k) !
Overload !
Output error !
High temperature !
Input converter error !
Charger error (NetPro 2k) !
Charger error (NetPro 3/4k) !
Temperature !
Replace battery !
Bypass error !
Progr.outlet off (NetPro 3/4k) !
Input error !
Weak mains !
Table 1: NetPro screen messages

OPM_NPE_XXX_2K0_4K0_1GB_V040 8NetPro 2000-4000: user manual 4.0 (GB)
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3.4.2.1 Status messages
Normal operating mode: the mains input voltage is present.
During a power failure, i.e. whenever the mains input voltage is outside
the input voltage range, the UPS uses the energy stored in its internal
battery. The remaining runtime, displayed in the default screen, counts
down until either the mains returns or the batteries are empty. See also
3.5.
Bypass mode: the load is directly connected to the mains supply. See
also 3.3.4
3.4.2.2 Low priority alarm messages
First line: ‘error’
Second line: specified as indicated below
The battery voltage exceeds 13.8Vdc/battery. If this is not caused by an
external battery charger, contact your dealer.
The operating temperature can rise intolerably as a result of:
!extreme environmental temperature
!lack of proper ventilation
!overload
When the alarm 'temperature' is generated (low priority, red LED 'alarm'
is out), check these conditions to avoid a further rising of the
temperature which might result in a transfer to bypass, a UPS shut down
or damage to the UPS.
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 (see section 6.2). Perhaps the 'replace battery' alarm occurs
after a manual 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 the power failure. Allow the UPS to recharge the batteries.
The mains voltage or mains frequency are outside bypass input
tolerance but inside UPS input tolerance (see chapter 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.
NetPro 3000/4000 only: The programmable outlet (4a, fig. 1) is
switched off. For more information see section 3.4.3 'PROG. OUTLET'.
The input voltage is out of tolerance (see chapter 8)
The UPS is still on-line but the incoming mains voltage dropped
(instantaneously) below 187Vac. The alarm will only occur at loads less
than 100%, as at full load the UPS switches to battery operation if the
incoming mains voltage drops below 187Vac (see chapter 8 'input
specifications'). The alarm lasts at least 15 seconds, regardless the
duration of the alarm situation. This alarm is not supported by the
buzzer.
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OPM_NPE_XXX_2K0_4K0_1GB_V040 9NetPro 2000-4000: user manual 4.0 (GB)
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3.4.2.3 High priority alarm messages
First line: ‘error’
Second line: specified as indicated below
The batteries are nearly discharged. Controlled shutdown of any
computer equipment is absolutely necessary at this point.
If the NetPro UPS is operating at 100% load, the shut-down 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.
NetPro 3000/4000 only: fan is blocked or defective.
The demanded power of the equipment exceeds the normal capacity of
the UPS. The message is displayed 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
situation between 100-150% persists, the UPS can eventually also
switch to bypass operation. If a transfer to bypass is inhibited (due to
voltage or frequency errors of the mains supply), or if the bypass
function has been disabled (see 3.4.3) the UPS may automatically
switch off within a few seconds (load dependent). Output power is lost at
that moment.
To avoid these problems, be absolutely certain that the power demands
of the protected equipment are within the limits of the UPS.
The output voltage drops below 207Vac. This situation can occur during
an overload, with either the bypass disabled or during battery operation.
If during a 'temperature' alarm the operating temperature of the UPS is
allowed to increase further, a high priority alarm will follow: the screen
message changes and red LED 'alarm' on the front panel illuminates. If
the UPS operates in 'on line' mode, it will switch to bypass mode (if
allowed, see explanation in section 'overload' above) until the
temperature is normal again*. If however the UPS operates 'on battery',
a shutdown will occur and output power is lost.
* If the UPS is equipped with an isolation transformer (NetPro+), the
temperature of the transformer may rise to an intolerable level during
bypass operation. In this case the UPS will shut down, too.
Input converter defective. Please contact your dealer.
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OPM_NPE_XXX_2K0_4K0_1GB_V040 10 NetPro 2000-4000: user manual 4.0 (GB)
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3.4.3 Setup Menu
The 'setup screens' allow you to program the NetPro UPS, to read several operating parameters and to
test parts of the system. To enter the setup screens from a default screen, press the #
##
#key (18) until the
first of the setup screens appears (the mentioned values are examples):
NetPro 3000 = UPS type,
V06 = software version number
second line = serial number
Pressing #
##
#(18) displays the second setup screen:
80% = the available battery capacity, as % of:
14.2Ah = the battery capacity, either the set capacity
or the result of a deep battery test (see 3.6.6)
Pressing #
##
#(18) displays the third setup screen. The upper line of the screen shows a programmable UPS
function; the lower line shows its actual setting.
Changing settings:
Using $
$$
$(20) and #
##
#(18) you can scroll through the several setup screens; OK (19) confirms a screen
choice. Subsequently '+' and '-' are displayed, and a proper setting for the function can be selected with $
$$
$
(20) and #
##
#(18), and stored with OK (19). If a setting is stored, '+' and '-' will disappear.
One of the default screens will appear after 20 seconds of no key activity,
Blocking settings:
Pressing OK (19) and #
##
#(18) simultaneously in a default screen during at least 2 seconds blocks the
display of all setup screens described below. The display shows during 5 seconds:
Pressing OK (19) and #
##
#(18) simultaneously in a default screen during 2 seconds again releases the
blocking of the setup screens. The display shows during 5 seconds:
Table 2 gives an overview of all programmable functions, ranges and settings:
Screen text Range Default
NP 3000/4000 only:
Prog. outlet
If set 'AUTO': Off auton. time
ON/OFF/AUTO
0 - 60 min.
ON
0
Fr.tracking rate 2 Hz/sec or 10 Hz/sec 10 Hz/sec
Start auton. time 0 - 60 min. 0 min.
Buzzer delay 0 - 60 sec. 8 sec.
Language English, German, French,
Spanish, Italian English
No-load shutdown ON/OFF OFF
Battery capacity*
(display shows no text, just a figure 4
- 250)
4 - 250 Ah 7Ah
Bypass enable YES/NO YES
Output voltage* 220 / 230 / 240V 230V
Output frequency* 50 / 60 Hz 50 Hz
Restore defaults*
* Restore defaults: restores the default settings except the settings marked with *
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OPM_NPE_XXX_2K0_4K0_1GB_V040 11 NetPro 2000-4000: user manual 4.0 (GB)
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NetPro 3000/4000 only:
One of the applicance outlets (4a, fig. 1) is programmable. Three settings are possible:
!ON
!OFF
!AUTO
When the UPS is started the outlet is always switched ON, but it can be switched off either manually or
automatically.
With the default setting 'ON', the outlet functions similar to the other appliance outlets: it delivers output
power as long as the output converter does. When 'OFF' is selected, the outlet switches off. When the
option 'AUTO' is selected, the system asks for the 'Off autonomy time': the remaining runtime (in minutes)
at which, during a mains failure, the programmable output is automatically switched off until the mains
returns. This way less critical equipment (e.g. screens, printer) can be switched off automatically in order
to lengthen the remaining runtime.
Figure 6 shows an example. The total predicted runtime is 15 minutes, and the 'off autonomy time' has
been set on 5 minutes: the outlet switches off 5 minutes before the predicted end of autonomy.
As the load decreases when the outlet switches
off, the actual remaining autonomy at the 'outlet
off' moment (which was predicted at present
load) will be longer than the programmed 5-
minute period.
In configurations with small loads and large
battery capacities, i.e. very long runtimes, the
step size with which the runtime is counted
down can be longer than the programmed 'off
autonomy time' (see section 3.5). In this case
the programmable outlet will be switched off
when the remaining runtime is one step from
zero.
Example: suppose the runtime is counted down with 10 minute steps, and the 'off autonomy time' is set
as mentioned above. Despite of the 5-minute setting, the outlet will be switched off 10 minutes (= one
step) before end of autonomy.
If the step size does not exceed the 'off autonomy time', the programmable outlet will be switched off at
the programmed moment although the accuracies may not match. Example: 'off autonomy time' set at 14
minutes while the step size is 10 minutes, the outlet will indeed be switched off 14 minutes before the end
of the autonomy.
If the option 'AUTO' is selected the programmable outlet can still be switched off manually using the front
panel keys.
Each time the mains returns, the programmable outlet will always be switched on. Therefore do not use
this outlet to switch off equipment that should permanently remain off.
The frequency tracking rate is the maximum rate at which the UPS adjusts its output frequency to
fluctuations of the input frequency. If the UPS is not connected to a generator set the default setting may
be too high. Note that a change of the frequency tracking rate is coupled with a change of the tracking
range (see chapter 8, bypass).
The runtime, below which the UPS is inhibited to start up, can be set here. The UPS will first recharge its
batteries and start up as soon as the 'start up autonomy' is available. The setting can be bypassed (see
also 3.2.3). Calculation of the 'start up autonomy' is based on the assumption that the UPS supplies 100%
load.
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15 05
mains
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output
off end of autonomy
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fig. 6 Off autonomy time

OPM_NPE_XXX_2K0_4K0_1GB_V040 12 NetPro 2000-4000: user manual 4.0 (GB)
GE Digital Energy
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In case of low priority alarms (see 3.4.2.2) the buzzer will not immediately sound but only after a certain
delay in order to avoid frequent buzzer activity during momentary alarm situations (e.g. overload,
temperature, weak mains). The buzzer delay time does not affect buzzer operation during alarms with
high priority.
Changes the language of the screen messages: you can select English (default), German, French,
Spanish, Italian.
Setting ‘ON’ means that the function is activated: the UPS will switch off during a mains failure when the
load is < 5% of the maximum load. Be careful with very small loads: e.g. a fax machine in stand-by mode
could be recognised by the UPS as a no-load situation.
In order to generate reliable runtime predictions the UPS needs to be informed about the total battery
capacity. The Ah value shown in the display is the programmed capacity and should indicate the capacity
of the standard internal battery plus the capacity of the battery extension pack(s).
If the NetPro is supplied by a generator set, and the generator's frequency is often out of the UPS's input
tolerances, frequently occurring 'bypass error' alarms (see 3.4.2.2) will be the result. During these alarms
bypass operation is inhibited. To avoid this situation the bypass function can be disabled: the UPS
functions as a UPS without automatic bypass switch.
If NO is selected, i.e. if the bypass function is disabled, the default screen alternates every 10 seconds
with the following message, displayed during 2 seconds:
The output voltage can be set to 220/230/240 Vac.
The output frequency can be set to 50/60 Hz.
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 3.4.2.2 ‘Bypass error’).
To avoid this, we advise to disable the bypass (see above).
WARNING:
Changing of the output frequency can cause severe damage of equipment connected to
the appliance outlets of the UPS: Be sure that the new frequency is suitable for the
connected equipment!
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OPM_NPE_XXX_2K0_4K0_1GB_V040 13 NetPro 2000-4000: user manual 4.0 (GB)
GE Digital Energy
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3.5 Runtime: calculation and indication
The available runtime is displayed in the default screen, and is counted down during battery operation
until either the mains returns or the batteries are empty.
Normally, i.e. if the runtime is less than 100 minutes, the runtime is calculated in minutes, and the step
size of the changes is one minute. In case of small loads and/or battery extension packs the available
runtime can be substantially longer. The accuracy of the runtime calculations however is limited: approx
1% of the initial runtime.
For this reason the measuring unit and step size will change at longer runtimes: if for example the runtime
is between 200 and 500 minutes the step size is 5 minutes; if the runtime is > 5000 minutes the runtime is
calculated in hours and the step size is 2 hrs. The following table gives an overview:
Runtime Rt, in minutes Unit Step size
Rt< 100 minutes 1 minute
100 ≤Rt< 200 minutes 2 minutes
200 ≤Rt< 500 minutes 5 minutes
500 ≤Rt< 1000 minutes 10 minutes
1000 ≤Rt< 2000 minutes 20 minutes
2000 ≤Rt< 5000 hours 1 hr
Rt≥5000 hours 2 hrs
Please note that unit and step size do not change during countdown: the initial units and step sizes
remain unaltered, until eventually the batteries are empty.
If during battery operation the available runtime becomes less than the step size it will be shown as '< S',
where S is the step size. If for example the initial autonomy was 1200 minutes, i.e. between 1000 and
2000, the countdown occurs with steps of 20 minutes each, and during the last 20 minutes before the
batteries are empty the runtime will be displayed as '< 20 min'.
3.6 Other Features
3.6.1 Shutdown
Using communication capabilities, the computer can direct the UPS to turn itself off following controlled
shutdown of the system. Subsequently the UPS will remain off for at least 30 seconds. LED 'operation' will
go out. The unit will start up again as soon as the mains returns (and, if activated, the start-up runitme is
available).
3.6.2 Programmed shutdown
The UPS monitoring software allows you to program a 'sleep period' of the UPS by sending two
commands to the UPS:
- shut down after # minutes, and subsequently:
- shut down during # hours.
The first command indicates the period of time after which the UPS should 'fall asleep', the second
indicates the duration of the sleep period. After the first command LED 'prog shutdown' starts blinking and
the standard screen shows the time until sleep (see 3.4.1). In the 'sleep'-mode LED 'operation' is off, LED
'progr. shutdown' is on, and the LCD shows the remaining sleep time:
During the 'sleep period' the UPS is not completely switched off as it has to keep track of the remaining
sleep time. However, if a mains failure occurs during the sleep period and the battery capacity eventually
drops below 80% of the normal capacity, the UPS will automatically switch off in order to save battery
power. When the mains returns the UPS will start up automatically (as soon as the start-up runtime is
available, if this feature is activated). The programmed sleep time however is lost.
The programmed shutdown in progress can be cancelled: press the OK button during 10 seconds to
cancel shutdown and switch the UPS on.
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OPM_NPE_XXX_2K0_4K0_1GB_V040 14 NetPro 2000-4000: user manual 4.0 (GB)
GE Digital Energy
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3.6.3 Front panel test
Proper functioning of all indicators on the front panel can be tested. From a default screen, press the $
$$
$
key (20) until the display shows
Key OK (19) confirms the selection. Subsequently all LEDs will blink, the buzzer will sound intermittently,
and all characters in the LCD will illuminate and gradually disappear: the upper row from the right, the
lower row from the left.
After succesful completion of the front panel test the LCD screen should display
3.6.4 Quick battery test
Automatic test: The NetPro UPS conducts periodic automatic battery tests to ensure that the batteries
and the wiring are healthy and able to support power failures. The tests do not cause any interruption in
the function of the unit and are conducted at the following times:
· 5 hours after manual switch-on
· 5 hours after return of mains following any power failure, and
· 30 days from the last battery test.
Manual test: A manual quick battery test can be activated
- either through an interface kit, via the RS232 Interface Port (please refer to the manual of your
interface package), or
- via the front panel with the push-buttons #
##
#, OK and $
$$
$. The procedure is as follows:
From a default screen, press push-button $
$$
$(20) until the display shows
(If no test has been performed since switch-on, the second line of this screen shows 'NO RESULT' until
push-button 'OK' is pressed).
Push-button OK (19) confirms the selection, and the screen shows:
The test status (indicated by the second line) can be:
BUSY TESTING = testing
V OUTPUT TOO LOW = output voltage too low for succesful completion of the test
BAD BATTERY = the batteries should be replaced
V BATT TOO LOW = battery voltage too low to start the test
TEST OK = battery has been tested with positive result
NOTE: the test only gives a reliable result if
- the load exceeds >30% of the rated output power,
- the batteries are > 95% charged.
If the batteries are dangerously close to being worn out, a low priority alarm 'replace battery' will be
generated (see 3.4.2.2). The batteries must be replaced as soon as possible (see section 6.2).
NOTE: If the manual test is started immediately after installation or after a power failure, the UPS may
generate a false 'replace battery' alarm as the batteries have been (partly) discharged during
transport/storage or during the power failure.
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OPM_NPE_XXX_2K0_4K0_1GB_V040 15 NetPro 2000-4000: user manual 4.0 (GB)
GE Digital Energy
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3.6.5 Battery calibration test
From a default screen, press the $
$$
$key (20) until the display shows
The default setting of the capacity normally results in a reliable runtime prediction. Local circumstances
however (e.g. low ambient temperature) may cause the prediction to be unreliable. In this case you can
have the UPS to recalculate the battery capacity. The predicted runtime shown in the display is 10% lower
than calculated in order to balance out small changes in load, ambient temperature and battery condition.
In order to keep track of the capacity deterioration due to aging of the batteries, we advise to perform a
battery calibration test at least once per year.
During a battery calibration test the batteries will be discharged to 'battery low' alarm level (see section
3.4.2.3 'battery low'). The test will result in a new capacity indication in the second setup screen (see
3.4.3) and, after complete recharge, new runtime predictions. Please note that immediately after a battery
calibration test the expected runtime time is very short: allow the UPS to recharge its batteries.
3.6.6 Deep battery test
This test, initiated by UPS monitoring software, is identical to a 'battery calibration test' (see above).
Please refer to the manual of the appropriate monitoring software package for more information.
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OPM_NPE_XXX_2K0_4K0_1GB_V040 16 NetPro 2000-4000: user manual 4.0 (GB)
GE Digital Energy
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4.1 RS232 Port (fig. 7)
The RS 232 Port is a plug-in interface port (9-pin, Sub-D, male) 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.
We strongly recommend to use only original GE Digital Energy software products in combination with
the interface port.
Pin # Function
1 RS232 input (UPS shutdown)
2 RS232 output
3 General alarm1)
4 Plug and Play
5 Common
6 Bypass active
7 Battery low
8 UPS connected
9 Mains failure
1) Active if the output voltage of the UPS is no longer guaranteed due to other circumstances than
already indicated by pin 6-7-9:
-Output converter overload
-Overtemperature (pre-)alarm
-Battery failure
-Fan failure
-High charger voltage
-Bypass out of limits
-Inverter shutdown (due to inverter failure or batt. failure)
4.2 Relay Interface Card (option)
The card is equipped with potential free change-over 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.
4.3 SNMP Interface Card (option)
This card 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.
fig. 7
RS232
DC
UPS
DATA TO UPS
DATA FROM
MAX: +48V 100mA
BYPASS ACTIVE
BATTERY LOW
GENERAL ALARM
MAINS FAILURE
REMOTE UPS
SHUT DOWN
RS232
PORT
5 = COMMON
8 = UPS CONNECTED
RS232
DC
RS232
2
6
5
1
7
3
8
4
9
DC
PnP
4 - Communication

OPM_NPE_XXX_2K0_4K0_1GB_V040 17 NetPro 2000-4000: user manual 4.0 (GB)
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Apart from the options described in 4.2 and 4.3 the following options are possible:
5.1 Extended Runtime (NetPro 2000/3000)
Extended runtime can be obtained by connecting a separate battery extension pack to the UPS. In this
case the UPS must be informed about the new total battery capacity to allow a reliable recalculation of the
available runtime (see section 3.4.3). Dependent of the charge condition of the new batteries the new
runtime calculations may temporarily be unreliable.
The additional batteries increase the runtime and recharging time for the unit, all other operational
information is the same as for standard models. It is not allowed to connect an external charger to the
UPS!
5.2 Isolation Transformer (NetPro 2000/3000)
Units equipped with a temperature protected isolation transformer ("NetPro +") are housed in a larger
cabinet than the standard unit. The isolation transformer allows the output neutral to be connected to
- protective earth (default setting)
- the input neutral
or be isolated. Please contact your dealer.
5.3 PowerFLAG SerVICe Box for Modem Connection
If you connect the PowerFLAG SerVICe Box between the communication port of the UPS and a modem,
a programmed number can be dialed in case of a UPS alarm. It also allows service personnel to dial in
and check the status of the UPS to perform remote diagnostics. This way service costs, specially in
remote areas, can be reduced considerably.
6.1 General
The UPS is virtually maintenance free: take care of proper environmental conditions and keep air
inlets/outlets free of dust. Please read 2.1.
6.2 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 3.6.4). When the condition of the battery is critical, a
'replace battery' alarm will be activated (see 3.4.2.2). Have your dealer replace the batteries as soon as
possible.
NOTE: under certain circumstances a manual battery test can result in a false alarm: please see 3.6.4
'quick battery test'.
Regular deep battery tests are advised in order to re-calibrate the capacity of aging batteries. Sections
3.4.3 'battery capacity' and 3.6.5 give more information.
5 - Optional Features
6 - Maintenance

OPM_NPE_XXX_2K0_4K0_1GB_V040 18 NetPro 2000-4000: user manual 4.0 (GB)
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Whenever a malfunction occurs, first check external factors (e.g connections, temperature, humidity or
load) to determine whether the problem is caused by the unit itself or by its environment. Subsequently
check the thermal circuit breaker: it may be tripped. If so: reset it (see 1, fig.1) and be sure that the UPS is
not overloaded.
The following chart is a simple troubleshooting checklist only. If the suggested solution does not succeed,
or if the information is insufficient to solve the problem, please contact your dealer or consult
www.gedigitalenergy.com.
PROBLEM POSSIBLE CAUSE SOLUTION
UPS overload Reduce load, reset TCB
(1, fig. 1)
Thermal Circuit Breaker (TCB)
tripped
System failure Contact your dealer or consult
www.gedigitalenergy.com
Most probably an overload See 3.4.2.3, reduce the loadLCD message 'on bypass'
Overtemperature See 3.4.2.3
Allow the UPS to cool down
Line cord not connected Read 2.2
Connect line cord
Batteries not connected Contact your dealer or consult
www.gedigitalenergy.com
Dead wall socket outlet, or
mains voltage out of limits Contact qualified electrician
UPS overtemperature See 3.4.2.3
Allow UPS to cool down
Runtime too low to start up See 3.2.3, wait or press OK
UPS will not switch on (without
using 'battery start')
and the output has been off for
a few secs.
Tripped Thermal Circuit Breaker See above
UPS switched off automatically UPS overtemperature See 3.4.2.3
Allow UPS to cool down
Mains failure, battery
discharged Wait until mains returns
Programmed shutdown in
progress See 3.6.2
UPS received shut down
command from computer during
mains failure
See 3.6.1
The load is < 5% of the max.
load and no mains power is
present.
(No-load shutdown function is
active, see 3.3.3)
Wait until mains returns
LCD message ‘replace battery’ Battery test just after installation
or mains failure Allow the UPS to recharge the batteries
Battery test shows weak battery Read 6.2, replace batteries
7 - Troubleshooting

OPM_NPE_XXX_2K0_4K0_1GB_V040 19 NetPro 2000-4000: user manual 4.0 (GB)
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NetPro model : 2000 3000 4000
Ratings
Voltage Amperes (VA) : 2000 3000 4000
with computer type load
Watts (W) : 1200 1800 2400
with resistive load
Input thermal circuit breaker (A) : 10 14 16
Input converter
AC input voltage : 220 - 240 V
AC input voltage range : 100% load: 187 - 264 V
60% load: 160 - 264 V
30% load: 125 - 264 V
Maximum start-up AC voltage : 255 V (at any load)
Minimum start-up AC voltage : 187 V (at any load)
Input current waveform : sinusoidal
Input power factor : 1
Input frequency range : 50 or 60 Hz ± 10%
Input current (A) : 6.6 10.0 13.5
Output converter
AC output voltage : 220/230/240 V (selectable)
AC output voltage tolerance : ± 1%
Output frequency : 50 or 60 Hz ± 0.15% unless synchronized to the mains
Output waveform : sine wave
Harmonic distortion : < 2% (typical 1.5%) with linear load
Power factor : 0.6
Crest factor (peak to RMS current) : up to 6:1
Capacity appliance outlets : max. 10 A per outlet
Bypass
AC input voltage range : 187 - 264 V
Frequency tracking rate : max. 2 or 10 Hz/sec.(selectable, factory setting 10Hz/sec)
Frequency tracking rate : 2 Hz/sec 10 Hz/sec
Frequency tracking range : nominal ± 2% nominal ± 10%
Phase difference : < 7° < 10°
Transfer time : < 1 msec.
Overload capability
The UPS is fully protected against overload
Overload behaviour:
on-line operation, bypass enabled : 110% during 5 minutes, 150% during 2 seconds
on-line operation, bypass disabled : 110% during 110 seconds
battery operation, NP2000 : 110% during 5 minutes, >135% during 110 seconds
battery operation, NP3000/4000 : >110% during 110 seconds
bypass operation : depends on rating of thermal circuit breaker; typical
: 105% of TCB value: no trip
135% of TCB value: trip within 1 hour
200% of TCB value: for 2 - 30 secs
300% of TCB value: for 0.8 - 4 secs.
Batteries (ratings given for 25°C)
Nominal voltage (V) : 72 108 120
Number of 7 Ah batteries : 6 9 10
Type : sealed and maintenance free
Service life : 3 - 6 years (depending on use)
Battery recharge current : 1.5 A
Battery recharge time : 2 - 6 hours for 80% capacity, std. battery
Automatic battery test : see 3.6.4
Runtime in minutes
at typical load (75%) : 7 7 7
Watts
60 190 270 310
120 117 165 185
240 60 95 105
360 38 63 72
600 21 35 40
900 13 22 25
1200 9 15 18
1800 - 9 10
General
Weight (kg) : 27 38 42
Dimensions (hxwxd, mm) : 293x220x557
Enclosure / protection : steel-plastic / IP20
Environment
Safety : EN 50091-1-1; EN 60950; IEC 950
Electromagnetic compatibility : EN 50091-2; EN 50081-1 + EN 50082-1; IEC 801-5: 6kV
Ambient temperature : -10 to +40°C
Audible noise at 1 meter : 45 dB(A)
The audible noise is load and temperature dependent
Max. relative humidity : 95% (non-condensing)
8 - Specifications