36
§
4
4
.
.
4
4
S
S
w
w
i
i
t
t
c
c
h
h
i
i
n
n
g
g
t
t
o
o
B
B
y
y
p
p
a
a
s
s
s
s
O
O
p
p
e
e
r
r
a
a
t
t
i
i
o
o
n
n
You can switch the UPS operation to the bypass operation using following procedures if a UPS malfunction
occurs or when maintaining the UPS.
①
Press
to display the LCD screen.
②
Press
to change the home menu to the one shown below.
③
Press
to accept it.
④
In the same way, follow the figure below to make selection at each level, as follows:
“Home menu”
→
“Operation” and continue
⑤
Use
to switch items, and then press
to select a desired item. When the confirmation screen appears, press
to perform the operation.
⑥
Press
to return to the home menu.
1
STATUS
Operation
Home menu
STATUS
MEASUREMENT
MAINTENANCE
SETTING
CONTROL
[SELECT] = OK
[BACK] = Cancel
Confirm
BYPASS
Control OK
If
OK
: Screen switches in about 1 second
INV OFF
BYPASS
Control NG
If
NG
: UPS is in a state where switching is not
possible. Screen switches in about 3 seconds later.
CONTROL
BYPASS
When the UPS is malfunctioning and the output power supply stopped, you cannot switch to the bypass
operation by the procedure above.
When “
Auto
” is set in §3.3 “Setting frequency”, the UPS switches to bypass operation without interruption during
synchronous operation. During asynchronous operation, the UPS switches with instant interruption.
When “
50Hz
” or “
60Hz
”, the UPS switches to bypass operation with instant interruption.
You can also switch the UPS operation to the bypass operation using
Forced Bypass
inside the front panel of
the UPS.
Note that during the bypass operation, if you set
MAIN MCCB
to “OFF”, “
Byp Fuse Error
”
appears on the LCD
screen
,
“Red
WARNING
” and “Red
ALARM
” light, and output supply stops. Setting
MAIN MCCB
to “ON” returns to
bypass operation.
Use either method A or B below to switch to the inverter operation.
A
.
Use the
button on the LCD panel or the
button on the main unit's control panel to perform the
ON operation.
B
.
In the operation step of §4.3 “Starting or Stopping UPS”, select “
CONTROL INV ON
”.
See §4.3 “Starting or Stopping UPS” for details on the procedure.
When “
Auto
” is set in §3.3 “Setting frequency”, even if you perform A or B procedure above, the UPS can not
switch to inverter operation during asynchronous operation. When “
50Hz
” or “
60Hz
” is set, the UPS can not switch
to inverter operation unless the input frequency is within the specified tracking range (±
1%
, ±
3%
, or ±
5%
) set in §3.2
“Setting Synchronous Frequency Tracking Range.”
Note on switching to bypass operation
- BYPASS -
Vo= V Fo= Hz
C O N T R O L
B A T T E R Y T E S T
CONTROL
BYPASS
How to switch from bypass operation to inverter operation
2
3
*1
*2
*3
*1. Pressing
repeatedly cycles through the
displayed items. If you miss a desired item, just
keep on pressing until you see it again.
*2. To return to the previous level, press
.
*3. If
Wait・・・
appears, use
to go back and try
again. If the operation still fails, contact your
supplier or SANYO DENKI.
Tip
Содержание A11J
Страница 1: ...LCD Panel Operating Manual M0009235E...