Service And Maintenance; Routine Maintenance; Troubleshooting Table - Unitek ALPHA 500 ipE Manuel De L'utilisateur

2.6 Audible / Visual Indicators
Audible / Visual Indicators
Buzzer
" "
- - - -
"
- - - - -
" "
- - -
"
- - - - - Beep continuously
#
- - - - - Beep every 4 seconds
#
- - - - - Beep intermittently (see the note)
" #
: LED on - : LED off : LED flashing
Overload status:
AC mode : Battery mode :
! Beep 2 times every 1 second for 105% ! Beep 2 times every 1 second for 105%. After 20 seconds UPS
! Beep 2 times every 0.5 second for 140 %
! Immediately shutdown for 140%
3. Interface With Computer for UPS Status Monitoring
The built-in DB9 / USB communication port on the UPS
may be connected to a host computer. The intelligent
monitoring software installed in the computer can get the
operating parameters and status through this channel
and command the UPS to conduct pre-defined steps to
protect the data in computer and inform the user to do all
the necessary preventive procedures.
The ALPHA 500 ipE UPS communicates with the
computer by sending out RS-232 data streams to one of
the serial ports through a 9-in to 9-pin standard cable.
The ALPHA 500 ipF communicates with the computer
through an USB connection.

4. Service and Maintenance

4.1 Routine Maintenance

! Use dry soft clothes to clean the front panel and plastic parts. Do not use any detergent that contains alcoholic
ingredient.
! The expected lifetime of the battery is around 3 years. Improper operation and harsh environment will reduce the
actual lifetime.
! Unplug the UPS from power inlet if the UPS will not operate for long a period of time.
! Charge the battery every 3 months to recover the self discharge capacity when the UPS is in extended storage.
! When replacing batteries, use the sealed lead-acid maintenance free battery with the same voltage and capacity.
! Proper disposal of batteries if required. Refer to your local codes for disposal requirements.
4.2 Battery Replacement Overview
1.Lay down the UPS. Use the screw driver to open the battery cover on the bottom of the unit.
2.Grasp the tab attached to the battery and slide the battery out.
Operating status
- Buck mode
- AC Normal
- Boost mode
UPS fault
On battery (AC utility failure)
Overload
will shutdown automatically ,
The RS232 pin assignment is shown in the following table:
Pin # Description
Pin 1
Pin 2 This pin is used for RS232 transmit pin (TXD).
Pin 3 This pin is used for RS232 receive pin (RXD).
Pin 4,6 Short-circuited
Pin 5 Common for Pin 8 and 1
Pin 7 DTR +5~12V (RTS).
Pin 8
Pin 9 N.C.
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5. Troubleshooting
The TROUBLESHOOTING TABLE in the next paragraph covers most of the difficulties that you may encounter under
normal working conditions. If the UPS fails to operate properly, please review the following steps before calling the
repair center:
1. Is the UPS plugged into a proper working outlet?
2. Is the line voltage within the rating specified?
3. Does the fuse or circuit breaker on the rear panel need to be replaced or reset ?
Please do not open the metal cover. There are no user serviceable parts inside
The batteries contained in this UPS are recyclable. The batteries contain lead and pose a hazard to the
environment and human health if not disposed of properly
Do not open or mutilate the batteries. They contain an electrolyte which is toxic and harmful to the skin and
eyes. A battery can present a risk of electrical shock and high short circuit current. When replacing batteries,
wrist watches and jewelry such as rings should be removed. Use tools with insulated handles.
Please note the following information when you call or send an e-mail for service:
1. Model No. / Serial No.
2. Date of purchase
3. Full description of problem.
5.1 Trouble Shooting Table
Abnormal Situation Cause
On/Off switch not pushed
UPS can not turn on and LED
completely
not lit
Battery voltage is too low
Power cord loose
Input fuse blow/circuit breaker
UPS always at battery mode
tripped
Line voltage too high or too low
UPS is normal but the Computer input power cord is
computer won't turn on loose or not connected
Battery is not fully charged or
Backup time is less than the
battery is dead.
rating
UPS is slightly overloaded
Overload
The UPS beeps continuously UPS shuts down in 20 seconds
in battery mode
Missing ground or polarity
Site Wiring Fault LED is on
reversed
Communication function not
Wrong interface cable.
working
It is suggested that the battery replacement should be conducted by authorized technician and with the same type and
capacity of battery.
For more information and contact : www.unitek-europe.com
6. Specification
Model
Total Capacity
Capacity
Battery Backup
Nominal Voltage
Input Voltage Range
Frequency Range
Nominal Voltage
Output Voltage Regulation
Transfer Time
Power Line Surge Suppression Joules
TEL/FAX Surge Suppression Type
Dimension (DxWxH)
Physical
Net Weight
* Specifications are subject to change without prior notice
Solution
Press and hold the On/Off switch for 3 seconds or
until you hear a beep sound
Recharge the battery for at least 4 hours
Re-plug the power cord firmly
Remove some loads and replace fuse with the same
rating or reset circuit breaker
Check input voltage
Reconnect computer input power cord
Recharge the battery for 6 hours and re-test the
backup time. If problem remains, call for service
Remove the least critical load.
Remove the non-critical loads
Remove non-critical load and start the UPS again
Call an electrician to check your wiring.
Purchase the correct one from your distributor
Alpha 500 ipE / Alpha 500 ipF
1000 VA
500 VA / 250 W
230 Vac
172 ~ 288 Vac
50 Hz +/- 10Hz
230 Vac
+10 ~ -15% (Line Mode) +/- 10% (Battery Mode)
< 4 mS (Typical)
476 Joules
RJ11 (1 in ,2 out)
310 x 174 x 94 mm
5.1 kg
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