ZGR TOWER PRO 1 kVA User manual

Operation Manual
ZGR TOWER PRO 1 3 KVA
Online single-phase UPS
www.zigor.com

ZGR TOWER PRO 1 3 KVA
Operation manual
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3
INDEX
1PRECAUTIONS.....................................................................................................................................................5
General precautions.....................................................................................................................................5
Storage precautions.....................................................................................................................................6
Environmental precautions ..........................................................................................................................7
2GENERAL DESCRIPTION.....................................................................................................................................8
Introduction..................................................................................................................................................8
Main characteristics.....................................................................................................................................9
Optional characteristics .............................................................................................................................10
Construction of the unit .............................................................................................................................10
3INSTALLATION...................................................................................................................................................11
Reception of material.................................................................................................................................11
Installation conditions ................................................................................................................................11
Connections...............................................................................................................................................11
3.3.1 ...................................................13
4OPERATION OF ZGR TOWER PRO 1 3 KVA..................................................................................................16
Control panel..............................................................................................................................................16
4.1.1 LED indicators........................................................................................................................................16
4.1.2 Display information ................................................................................................................................17
4.1.3 Alarm list.................................................................................................................................................18
4.1.4 Function of the buttons..........................................................................................................................20
4.1.5 UPS setting menu ..................................................................................................................................20
Operation modes .......................................................................................................................................22
4.2.1 Normal mode..........................................................................................................................................22
4.2.2 Battery mode..........................................................................................................................................22
4.2.3 Bypass mode .........................................................................................................................................23
4.2.4 Standby mode........................................................................................................................................23
4.2.5 ECO mode..............................................................................................................................................23
4.2.6 Frequency converter mode....................................................................................................................24
Operation procedures................................................................................................................................24
4.3.1 Before Start-up.......................................................................................................................................24
4.3.2 First Start-up ..........................................................................................................................................24
4.3.3 Cold-Start: Start-up without mains........................................................................................................25
4.3.4 Regular starts and stops........................................................................................................................25
4.3.5 Switching off for a long period...............................................................................................................25
4.3.6 Battery mode operation .........................................................................................................................26
4.3.7 Battery test.............................................................................................................................................26
4.3.8 Mute the buzzer .....................................................................................................................................27
4.3.9 Operation in warning status...................................................................................................................27
4.3.10 Operation in fault status.....................................................................................................................27
5COMMUNICATIONS...........................................................................................................................................28
USB port.....................................................................................................................................................28
RS232 port.................................................................................................................................................28
Intelligent slot.............................................................................................................................................29

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6TROUBLESHOOTING.........................................................................................................................................30
Malfunctions of ZGR TOWER PRO 1 3 KVA...........................................................................................30
7MAINTENANCE ..................................................................................................................................................31
Maintaining the electronic system .............................................................................................................31
Battery maintenance..................................................................................................................................32
7.2.1 Battery replacement...............................................................................................................................33
8TECHNICAL SPECIFICATIONS..........................................................................................................................34
9STANDARDS.......................................................................................................................................................36
10 WARRANTY....................................................................................................................................................37
© 2022, ZIGOR
All rights reserved. The total or partial reproduction of this User Manual, or its transmission of any type or by any means, be
this mechanical or electronic, by means of photocopies, registration or other information storage or recovery procedure,
without the permission of the editor, is totally forbidden.
The contents of this manual are exact at the time it was printed. However, with the intention of complying with our aim of
continuous development and improvement, the manufacturer reserves the right to change the specifications of the product,
its operation or the contents of the Operating Manual without prior warning.

ZGR TOWER PRO 1 3 KVA
Operation manual
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1PRECAUTIONS
General precautions
For your own safety and that of the unit, you must read and understand the instructions contained in this
document before starting work.
Keep these instructions in a place accessible to all the personnel who work with the unit so that they can be
consulted.
Only expert and duly authorised personnel may operate our units.
Danger warnings. When handling or accessing the interior of the ZGR TOWER PRO 1 3 KVA,
please remember that some parts may be live. Pay special attention to soldering points, printed
circuits, connecting terminals, relay contacts, etc. Before opening the equipment, disconnect the
voltage of all poles (both alternating and direct) and wait at least 5 minutes for the internal condensers
to discharge.
Arbitrary modifications are forbidden. The unit must not be subjected to any modification regarding its
construction or safety without express consent. Any modification will free ZIGOR of any responsibility
for any damage caused as a result of the modification. In particular, all repair work, soldering of printed circuit
boards and replacing of components, modules and printed circuit boards, without the express authorisation of
ZIGOR, is forbidden. Should spare parts be used, only ZIGOR original parts shall be utilised.
Use the unit for the purpose for which it was designed. The system supplied must be used only for the
purpose for which it was designed. Any other use is strictly forbidden. ZIGOR cannot accept responsibility for any
damage that might result from its use for any other purpose. In such cases, the user shall assume exclusive
responsibility for any risk. The use for which the unit was designed is defined in the documentation. The system
shall be exposed only to admissible environmental conditions. These are defined in the technical details provided
for the equipment.
ZIGOR accepts no responsibility for any inadequate, negligent or incorrect installation of the equipment.
Please follow the indications set out below to operate under conditions of complete safety:
•The System must be checked once the installation has been completed by a qualified technician and
before being put into operation. Should these indications not be adhered to, the warranty shall be
considered null and void.
•These units do not contain parts usable for other purposes by the user.
•Do not power up the device before a technician has checked it.
•Given the risk of electric shock or burns, do not try to open the device.
•Work inside the cabinet should be undertaken only by qualified personnel who are familiar with the safety
measures to be applied and the specific technical characteristics of the unit.
•The unit does not contain any user repairable or replaceable elements. In the case of any malfunction or
problems operating the unit, please contact ZIGOR.
•Do not place the system near power magnets as this might cause a malfunction.
•Do not block or cover the ventilation grills in the housing.
•The ZGR TOWER PRO 1 3 KVA is designed in accordance with current Spanish legislation. Check
these regulations against those corresponding to the country in which the unit is to be installed and
against the most restrictive regulations of the electricity supplier.
•All user controls are accessible from the exterior.
•This system has been designed for industrial use and not for domestic-commercial use.
WARNING
This supply equipment contains a lethal voltage. Comply with the instructions set out in this manual to avoid any
risk of electrical shock.

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•Even though all the safety systems are in place, before touching any working parts, you must check that
they are not live.
•If any liquid is spilt accidentally on the System, disconnect it and call to ZIGOR support.
•During assembly work, start-up or maintenance, wear goggles to avoid any damage to your eyes due to
accidental electric arcing.
•Use only insulated tools.
•The unit must be protected against rain and excess humidity and installed in a clean atmosphere, without
inflammable liquids, gases or oxidising substances.
•The battery may pose a risk of electric shock or burns due to its high short circuit current.
•If the batteries lose electrolyte or are physically damaged, they must be placed in a container in resistant
to corrosive liquids (acids or alkaline according to the type of battery) and prepared in accordance with
local regulations.
•If the electrolyte comes into contact with the skin, the affected area must be washed immediately with
clean water.
•For the sake of human being safety, please well earth the UPS before starting it.
•Do not throw batteries into a fire as they may explode.
•UPS models with internal batteries can be powered even when the UPS input is not connected to the
mains.
•Do not disconnect the input from the UPS and make sure the UPS is completely off before moving it or
reconfiguring the connection; otherwise, there is a risk of electric shock.
•Only authorized personnel should repair or install the batteries.
•Should you have any problems with the contents of this manual, you must ask ZIGOR for assistance.
Storage precautions
The store where the material is kept must protect the material from the elements, risk of flooding or contact with
water.
The material shall be protected from any risk of overheating due to exposure to direct sunlight or through
windows.
The UPS has lead batteries. The temperature has an influence on auto-discharge and on the service life of the
batteries. Therefore, it is essential to store them in as cool an atmosphere as possible.
The recommended storage temperature is from 15ºC to 25ºC. An increase of 10ºC can reduce the service life of
the battery by 50%. The recommended relative humidity is from 30% to 90%.
To avoid any risk of mechanical shock, do not stack the packages. These must be placed in accordance with the
silkscreen printed details on the boxes used for packaging.
For prolonged periods of storage, voltages must be controlled at the following intervals:
▪Storage at 20ºC: Every 3 months.
▪Storage at 30ºC: Every 2 months.
Disconnect the battery if this is to be shut down for a long time.
WARNING
Any failure to respect these precautions may render the product warranty null and void.

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Environmental precautions
Precautions on the transportation of the unit
Please transport the UPS system only in the original package to protect against shock and impact. The procedure
to transport of the UPS to the final location should follow the procedure:
1. Use a pallet truck to transport the UPS to the installation position.
2. Check the UPS packing.
3.
4. Check the appearance to see if the UPS is damaged or not during the transportation, do not switch on the
UPS if any damage found. Please contact the dealer right away.
5. Check the accessories according to the packing list and contact the dealer in case of missing parts.
Dispose of the packaging in an ecological way: ZIGOR, based on the exceptions detailed
in the First Additional Provision of Law 11/1997 on commercial or industrial packaging,
informs that the final holder of the waste of used containers and packaging, as responsible
for them, you must deliver them in appropriate conditions for reuse, to an authorized
recuperator, recycler or re-valuer.
The subsets of the system are recyclable products and cannot be treated as household / municipal waste at
the end of its useful life.
To preserve the environment, manage them in accordance with current environmental regulations and
requirements in each country or community. In case of doubt, consult the manufacturer.
Correct product disposal: This electrical-electronic device (AEE) is marked with the
symbol of compliance with the European Directive 2012/19 / EU (WEEE) regarding used
electrical and electronic equipment (Waste electrical and electronic equipment WEEE, RD
110/2015).
The Directive provides the general framework valid throughout the European Union for the
removal and reuse of waste from EEE.
To dispose of this product and ensure its proper management, follow the current local
environmental legislation and regulations. In this way it will contribute to conserve the
environment.
Correct disposal of batteries: Used batteries are reusable consumer products and a recycling
process must be carried out.
Used batteries that do not go through the recycling process must be disposed of according to
the instructions regarding special waste, in accordance with the regulations and environmental
requirements in force in each country or community. This requirement applies in the European
Union and in those places where separate collection systems are available.
In case of doubt, consult the manufacturer.
In this way it will contribute to conserve the environment.

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2GENERAL DESCRIPTION
Introduction
You have just purchased an Uninterrupted Power Supply (UPS) System.
In order to get highest efficiency from your product and to ensure a safe use, we recommend that you strictly read
and retain this operating manual for later reference. In addition, do not hesitate to contact customer service for
more detailed information and/or assistance (s[email protected]).
The UPS will be connected between the load and the grid. The purpose of this device is to provide the load with
controlled power for each load and input supply condition. The power provided by the UPS will be protected from
all variations in grid´s voltage and frequency by supplying electrical power to the load in a stable, controlled and
disturbance-free manner.
ZGR TOWER PRO 1-3 KVA
connected to the single phase network, and supply an output voltage which is also single phase. These consist of
an electronic high frequency rectifier with active power factor corrector, which supplies a inverter stage, a battery
charging circuit and an output filter that provides quality, disturbance/harmonic-free output.
In case of a mains failure, the load supply is guaranteed by the battery power supply for a backup time that varies
depending on the capacity of batteries used. If mains voltage is recovered during the backup time, UPS will return
to normal mode automatically and continue supplying power to loads. Meanwhile, batteries are charged as well.
In the case of an overload or breakdown of one of the UPS stages, the UPS has a bypass that guarantees the
power supply to the load uninterruptedly. Once overload is recovered or the breakdown is repaired, load is
transferred back to normal mode.
A microprocessor is responsible for controlling the different circuits and for presenting the UPS status through a
liquid crystal display (LCD) and LED indicators.
The UPS can be monitored remotely via a computer by using several communication protocols.
System used in ZGR TOWER PRO 1-3 KVA uninterruptible power supply is shown in the following simple block
diagram.
Fig. 2-1 Simplified diagram of ZGR TOWER PRO 1-3 KVA
INPUT
RECTIFIER
& CHARGER
INVERTER
BYPASS
BATTERY
OUTPUT

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The complete rage is shown in the following table:
MODEL
POWER
BATTERY PLACEMENT
ZGR TOWER PRO 1 KVA
1 KVA
Internal
ZGR TOWER PRO 2 KVA
2 KVA
ZGR TOWER PRO 3 KVA
3 KVA
ZGR TOWER PRO 1 KVA LBT
1 KVA
External
ZGR TOWER PRO 2 KVA LBT
2 KVA
ZGR TOWER PRO 3 KVA LBT
3 KVA
Table 2-1 ZGR TOWER PRO 1-3 KVA series range
BT
inside them but with a reinforced battery charger. These models are normally used for high backups and they are
accompanied by battery cabinets.
Main characteristics
•Low distortion sinusoidal output voltage: a modern inverter with modulation control of the pulse width
(PWM) generates a sinusoidal output with minimum distortion, allowing power to be supplied to sensitive
apparatus.
•High input power factor and low distortion sinusoidal of input current: the high frequency rectifier
or corrector (PFC) which allows the UPS consumes power with a power
factor near to unity and with a low distortion sinusoidal of input current, no matter what type of connected
load to the equipment.
•Microprocessor control: All the power conversions are controlled by totally digital signal. Excellent
performance and reliability are realized together with all kinds of protection functions.
•Instantaneous transition from normal to battery mode operation and vice versa: as this is a double
conversion model, there is no failure in the output voltage in transitions between mains and battery.
•High input voltage range: The rectifier works at mains of low voltages at full load, which prevents energy
from being extracted from the battery even at these voltages.
•High efficiency: this UPS range has a high efficiency up to 92%.
•Protected against overloads and short-circuits: are fitted with protection circuits that
prevent the device from being damaged by short-circuit or excess load.
•Front control panel: in the front of UPS there are LED indicators, a LCD display and a keypad which
indicate the operation mode, mimic diagram, warning and failure information, and allow browsing through
the display to monitor UPS data and necessary settings.
•Monitoring software: included RS232 and USB type connections which, by means of software, allows
you to save files, run programmes, turn off the PC, etc., as well as monitoring in real-time the status of the
UPS.
•Self-Battery and UPS test: also is included a function that performs a battery and UPS test in order to
check status of them.
•Battery test: this series has an option that performs a battery test in order to check the battery status.
•3-level intelligent charger: UPS of this series has an intelligent charger of three optimized battery charge
levels to enlarge the lifetime of the batteries.

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•Cold-Start function: this function allows turning on the UPS directly from the batteries when the grid is
not available.
•Re-Start function: thanks to this feature, in case of mains failure and UPS shutdown due to flat batteries,
the UPS will start again automatically when mains is recovered even long time has passed after power
failure.
•Programmable outlets: UPS have outlets for non-essential loads which in battery mode will be
disconnected before outlets for priority loads, for the purpose of extending the autonomy of the UPS.
Optional characteristics
•Intelligent slot: this UPS is fitted with one expansion port to which optionally Ethernet (SNMP protocol) or
dry contact cards can be assembled. Any of these modules can be used simultaneously with the RS232
and USB ports.
•ECO mode: these m -
providing gr -
•Frequency converter: these models can be configured in order to operate with frequency converters,
providing 60Hz with 50Hz input and vice versa.
Construction of the unit
This device is built in steel frames with removable panels.
On the front of the UPS there is a liquid crystal display and a series of luminous indicators and buttons that allow
the operator to monitor the UPS.
All the electrical connections and access to the protections in UPS can be found at the rear of the UPS.
The UPS is cooled by means of forced ventilation. The air is introduced and expelled through vents placed on the
front, rear and sides of the UPS. These areas must be free of any object so that the air can circulate freely inside
and outside the UPS.

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3INSTALLATION
Reception of material
Remove the UPS from the packaging and carry out a visual examination in order to detect any damage that might
have occurred during transport. Notify the seller about any damage.
List and check all the items indicated on the delivery note. Check that the material delivered corresponds with the
delivery note. Check the manufacturer´s identification plates located on the rear or side of the UPS.
Installation conditions
The place chosen for the installation must meet the following characteristics:
•Protection against dust.
•Protection against excessive humidity and heat sources.
•Protection against atmospheric agents.
•Avoid exposure to corrosive gases and agents.
•Temperature of operating atmosphere between +20º C and +25º C.
•Easy connections.
•Proximity to magnetic fields and high-power lamps must be avoided.
•Prevent the UPS being exposed to the sun.
•Do not obstruct the vents as this would prevent the correct dissipation of the heat produced by the UPS.
The minimum distance from the ventilation grills to walls or other obstacles must be 300mm.
Connections
All electrical connections of the UPS are made from the rear side of the device. Below is shown the rear panel
view of all models.
No claims will be accepted if, 24 hours following the delivery of the goods, no notification of reception of
material in bad conditions has been received and if this circumstance is not notified to the forwarding agent at
the time of delivery.
WARNING
The UPS contains lead batteries that are charged when they leave the factory.
They can be stored for up to two years provided that they are recharged on a periodic basis, at least every six
months, during storage.
Should these recommendations not be observed, the battery warranty will be rendered null and void.

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ZGR TOWER PRO 1KVA
ZGR TOWER PRO 1KVA LBT
ZGR TOWER PRO 2KVA
ZGR TOWER PRO 2KVA LBT
ZGR TOWER PRO 3KVA
ZGR TOWER PRO 3KVA LBT
1. RS232 communication port
2. USB communication port
3. Input circuit breaker
4. RJ45 overvoltage protection
5. Input socket
6. Expansion port
7. External battery connector
8. Non-essential outlets (SEGMENT1)
9. Priority outlets (SEGMENT2)
10. Output terminals
11. EPO connection (near to USB)
Fig. 3-1 Rear panels of ZGR TOWER PRO 1-3KVA models
The nominal voltage for UPS input and outputs is 200/208/220/230/240 Vac, 50/60 Hz.
Connecting cables, both for UPS input and output, must be 3-wire connections (phase + neutral + ground). In all
cases, connections are made by means of IEC type connectors, or terminals, depending on model.
Take the following steps into consideration in order to make the connections of the equipment:
1. socket of the rear of the equipment, and the other end of the cable to the
appropriate mains outlet. The power cord is supplied in the UPS package.
At the rear of the unit there is access to an input circuit breaker.
2. Connect the devices (loads) to the UPS outputs:
•For socket-type outputs, simply connect devices to the IEC sockets.
•For terminal-type outputs (if available), follow below steps:
oRemove the small cover of the output terminals and connect the wires.
oUpon completion of the wiring, check whether the wires are securely affixed.
oPut the small cover back to the rear panel.






























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3.3.1 External battery connections (only long backup time models)
IBT cabinets. According to the required backup time,
these cabinets can be TOWER PRO type or A type.
Follow instructions below according the type of cabinet.
3.3.1.1 TOWER PRO type cabinet
The appearance and the design of these cabinets are specific for ZGR TOWER PRO 1-3 KVA UPS range. Inside
them, 7 or 9 Ah and 12V battery branches are pre-installed at the factory to facilitate their installation.
Simply connect the UPS to the battery cabinet using the supplied cable. The connectors of this cable are
prepared to allow insertion only in the correct position.
The connectors are prepared in such a way that they can only be inserted in the correct position.
Fig. 3-2 Battery connection with TOWER PRO type cabinets
If more autonomy is required than initially acquired, additional cabinets of this type can be added.
In case of internal battery models, only one additional cabinet with one battery string can be added.
3.3.1.2 A type cabinet
When TOWER PRO type cabinets are not enough for the acquired backup time because higher capacity battery is
required, the use of A type cabinets is necessary. These cabinets are designed to house different type and
quantity of batteries, so that the installation must be done in the final location.
WARNING
Should the number of UPS outlets are not enough, a power strip with an extension lead can be used. In order
to avoid power interruptions due to error, we advise you not to use adapters with a built-in switch.
WARNING
If load is connected to output terminals, it is recommendable to use 2.5mm2 or AWG14 cable.
UPS
Battery
cabinet
To another
battery
cabinet

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Follow carefully the steps below:
•Make sure that the UPS is completely switched off and disconnected from the mains supply before
adding the batteries.
•Check the voltage of each battery.
•Assemble the battery cabinet(s) in accordance with the instructions included with the cabinet. Remember
to leave a minimum distance of 500mm between a lateral panel of each battery cabin and the obstacles
there may be around the battery cabinet. In this way, assembly and maintenance of the batteries are
easier.
•Install the breaker in accordance with the instructions included with the battery cabinet and check it is
open.
•Place and wire the batteries distributed over the cabinet divisions in accordance with the included battery
assemble drawing.
•Connect the battery cabinet(s) to the corresponding UPS terminals.
Fig. 3-3 Battery connection example with A type cabinets
•Check total voltage and polarity of each battery string is correct.
In case of doubt, contact our customer service ([email protected]).
UPS
Battery
cabinet
WARNING
Be careful to check battery connector voltage and battery pack voltage. It must be the same.
Each UPS has its own optimized design battery bus voltage.
Check printed voltage under connector on rear panel before connecting battery pack.

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WARNING
Battery type, aging or manufacturer should not be mixed. If you want to increase UPS autonomy or replace
batteries, contact ZIGOR customer service and follow our recommendations.
WARNING
Batteries must be installed exclusively by personnel authorised by ZIGOR. ZIGOR takes no responsibility for
damage caused by external batteries installed by personnel not authorised by ZIGOR.
Follow these steps with care:
•The voltage of battery terminals is dangerous even when the UPS is not in operation. Access to the
interior of the battery cabinet shall be restricted to trained personnel.
•A short-circuit on the battery terminals (or of one of its elements) before the breaker or fuse is
EXTREMELY DANGEROUS as the current will be limited only by the internal resistance of the battery
and the wiring. These extremely high currents can cause the battery to explode, melt cables, tools and
other metal objects.
•Do not attempt to open the batteries. These contain electrolyte, which can cause burns to eyes and
skin.
•Do not wear rings, bracelets, watches, etc., as these could cause short-circuits or electric shocks.
•Use insulated tools.
•Wear gloves, insulated protective shoe wear and safety goggles.
•Discharge body static electricity before making connections.
•Do not place tools on the batteries.
•Do not place batteries near fire or high heat emiters.
•Do not smoke.

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4OPERATION OF ZGR TOWER PRO 1 3 KVA
Control panel
The control panel is placed on the front of the UPS. It consists of the following items:
•LED indicators: there are four LEDs to show the UPS working status.
•LCD display: indicates the status of the unit and information about battery, load, input, output, alarms or
backup times.
•Buttons: there are four buttons to control the operation of the UPS.
Fig. 4-1 UPS control panel
4.1.1 LED indicators
In the below table is defined the meaning of the LED indicators when illuminated:
LED
COLOUR
DESCRIPTION
Red
UPS has an alarm (warning or fault).
Yellow
UPS is in Bypass mode or ECO mode.
Yellow
UPS is in Battery mode.
Green
Inverter is working.
Table 4-1 LED indicators meaning
NOTE: On different operation modes, these indicators will indicate differently.
LED indicators
LCD display
Buttons

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4.1.2 Display information
In the below table is shown and explained all the elements that can appear in the display:
SYMBOL
DESCRIPTION
UPS general information
Indicates input, output, battery and UPS general information. This section is explained in the
Table 4-3.
Backup time, alarm and setting information
Indicates the remaining backup time when UPS is in battery mode.
H: hours, M: minutes
Indicates warning code (warning symbol blinking).
Indicates fault code (error symbol lit).
Indicates parameter number in setting menu.
Battery information
Indicates the battery capacity: 0-24 %, 25-49 %, 50-74 % y 75-100 %.
Indicates low battery level.
Load information
Indicates load level: 0-24 %, 25-50 %, 50-74 % y 75-100 %.
Indicates overload.
Indicates the load or the UPS output is short circuited.
Mute operation
Indicates that the UPS alarm is muted.
UPS status information
Indicates UPS is connected to the mains.
Indicates rectifier is working.
Indicates inverter is working.

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Indicates there is voltage at UPS output.
Indicates UPS is in ECO mode.
Indicates UPS is in frequency converter mode.
Indicates not essential outputs are active.
Table 4-2 Display information
sequentially. The available screens are as below:
SCREEN
DESCRIPTION
DISPLAYED CONTENT
01
Input and output voltage
02
Input and output voltage
03
Battery voltage and capacity
04
Internal temperature
05
Power demanded by the load
06
Firmware version
07
UPS model
S: internal battery model H: LBT model
Table 4-3 Available screens in LCD display
4.1.3 Alarm list
When there is any alarm, a code besides symbol blinking in case of warning or beside symbol in case of
he table below describes the possible
alarm codes.

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CODE
ALARM
BUZZER
LED INDICATOR
1
Rectifier Fault
Beep continuously
lit
2
Inverter fault (Including Inverter bridge is
shorted)
Beep continuously
lit
9
Fan fault
Beep continuously
lit
12
Self-test fault
Beep continuously
lit
13
Battery Charger fault
Beep continuously
lit
15
DC Bus over voltage
Beep continuously
lit
16
DC Bus under voltage
Beep continuously
lit
17
DC bus unbalance
Beep continuously
lit
18
Soft start failed
Beep continuously
lit
19
UPS Inner Over Temperature
Twice per second
lit
20
Heatsink Over Temperature
Twice per second
lit
26
Battery over voltage
Once per second
blinking
27
Mains Input reverse
Once per second
blinking
28
Bypass Input reverse
Once per second
blinking
29
Output Short-circuit
Once per second
blinking
30
Input current limit
Once per second
blinking
31
Bypass over current
Once per second
blinking
32
Overload
Once per second
or blinking
33
No battery
Once per second
blinking
34
Battery under voltage
Once per second
blinking
35
Battery low pre-warning
Once per second
blinking
36
Over load time out
Once per 2 seconds
blinking
37
DC component over limit
Once per 2 seconds
blinking
39
Mains volt. Abnormal/Out of range
Once per 2 seconds
lit
40
Mains freq. abnormal/Out of range
Once per 2 seconds
lit
41
Bypass Not Available
blinking
42
Bypass unable to trace
blinking
43
Inverter ON invalid
44
UPS in bypass mode for a long time
Table 4-4 LCD alarm list

ZGR TOWER PRO 1 3 KVA
Operation manual
www.zigor.com
20
4.1.4 Pushbutton functions
Buttons are located in the front in the UPS under the display, as you can see in Fig. 4-1.
In the table below is defined the meaning and the button functions:
BUTTON
FUNCTION
ENTER/ON
•Start the UPS: Press and hold this button for at least 2 seconds to turn on the UPS.
•Carry out battery test: Press and hold this button for 2 seconds to carry out a battery test
while in normal mode or frequency converter mode.
•Mute the alarm: When the UPS is on battery mode, press and hold this button for at least 2
seconds to disable or
of warnings or faults.
•Setting menu: Press this button to confirm current setting.
ESC/OFF
•Stop the UPS: Press and hold this button at least 2 seconds to turn off the UPS. Factory-
made, it will transfer to bypass mode. If transferring to standby mode is desired, set
parameter 10 in setting menu.
•Setting menu: Press this button to exit setting menu without saving changes or to cancel a
setting.
UP
•Up button: Press this button to
section.
•Setting menu: Press this button to go back to previous parameter or to change the value
of the parameter.
DOWN
•Down button: Press this button to advance to next
section.
•Setting menu: Press this button to advance to next parameter or to change the value of
the parameter.
UP + DOWN
•Setting menu: Press and hold both buttons at least 5 seconds to access setting menu.
Table 4-5 Pushbutton functions
4.1.5 UPS setting menu
Certain UPS parameters can be configured in the setting menu.
To enter this menu and navigate through it, follow these steps:
•After the UPS is powered buttons for at least 5 seconds to enter setting
menu.
•
•will start flashing.
•
•
•seconds.
screen.