Sanyo Denki Sanups A11J, Instruction Manual

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Troubleshooting
37
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CAUTION
！
Internal inspection and maintenance of the UPS should be performed only by service technicians.
Electric shock, bodily injury, burns, fuming, or fire may otherwise result.
Before beginning inspection, shut down the UPS completely and remove the input power. There is
danger of electric shock.
While the batteries are connected to the equipment, hazardous voltage is present. Never touch
any parts with your hand.
Doing so may result in an electric shock.
Check the status of the UPS and see the following table for the countermeasure to take.
1/3
UPS Status LCD Indication LED Status Countermeasure
The UPS does not start. - Green INPUT: Off
Is the input power supply connected to the input/output terminal block of the
UPS properly?
See “§6.3.2 Wiring to the Terminal Block,” and connect it properly.
Are all the cables between the UPS Units connected properly?
See “§6.3.1 Wiring Between UPS Units,” and connect each of the cables
properly.
Is
MAIN MCCB
set to
“
ON
”
?
See “§8.1 Starting the UPS” and check the correct operating procedure.
The buzzer sounds when
the UPS starts
Batt Vol Error
-
Are the battery packs installed properly?
Stop the UPS, see Ҥ6.2 Installing the Battery Packs and Attaching the Front
Panel,” and securely install the battery packs. After installing the battery
packs, restart the UPS and check that the buzzer does not sound.
When the UPS starts, all of
the LEDs of the UPS Units
blink.
-
Green INPUT:
Blinking
Green OUTPUT:
Blinking
Red ALARM:
Blinking
The settings of each UPS Unit differ.
See step
②
of “§7.1 Checking and Setting UPS Settings,” and restart the UPS
Units.
Are the interface cables between the units connected properly?
See step
④
of “§6.3.1 Wiring Between UPS Units,” and connect the interface
cables between the UPS units properly.
-
Green OUTPUT:
Off
Is the input power supply connected to the UPS properly?
See “§6.3.2 Wiring to the Terminal Block,” and perform the wiring properly.
Check that the input voltage and input frequency are within rated ranges.
See “§12.4 Specifications.”
Was the startup operation performed in accordance with the correct
procedure?
See “§8.1 Starting the UPS” and check the correct operating procedure.
- All: Off
Is
MAIN MCCB
set to
“
ON
”
?
See “§8.1 Starting the UPS” and check the correct operating procedure.
Has
MAIN MCCB
tripped (OFF) by an overload or short circuit state?
Check the load capacity and whether there is a short circuit.
If the load
capacity is high, reduce the number of load devices connected to the
terminal block of the UPS, and set
MAIN MCCB
to ON.
See Ҥ9.3
Resetting the Main Breaker.”
Input Error
Input Freq Err
Input Vol Hi
Input Vol Low
Green INPUT:
Blinking
Is the voltage of the UPS set properly?
See “§3.1 Setting Voltage” in the LCD Panel Operating Manual.
Check that the input voltage and input frequency are within rated ranges.
See “§12.4 Specifications.”
Remote OFF - The remote OFF signal is set to ON. See “5.4 External Interface.”
No power is supplied from
the terminal block of the
UPS.
EPO ON -
The EPO signal is set to ON. See “5.4 External Interface.”
-ONLINE-
Green OUTPUT:
On
Was the shutdown operation performed in accordance with the correct
procedure?
See “§8.2 Shutting Down the UPS.” However, bypass power supply will
continue during bypass operation if it was started by, for example, a
changeover with the forced bypass switch, an overload, or malfunction.
If the shutdown operation was performed by pressing on the UPS Unit
control panel, was the shutdown operation performed in accordance with the
setting value?
Is “UPS Shutdown Operation” in the LCD panel setting menu set to “3 Sec.”
(3 seconds) or “Unique” (special operation)?
See “§3.9 Setting UPS Shutdown Operation” in the LCD Panel Operating
Manual and check the setting value.
The default setting is “1 Sec” (1 second).
-BYPASS-
Green OUTPUT:
Blinking
Is “UPS Operation at OFF” in the LCD panel setting menu set to
“BYPASS”?
See “§3.11 Setting UPS Operation at OFF” in the LCD Panel Operating
Manual and check the setting value. The default setting is “OFF.”
Power from the terminal
block of the UPS does not
stop.
Nothing is
indicated.
Red ALARM: On
All other LEDs are
off.
The UPS has malfunctioned. Contact your sales representative or SANYO
DENKI.