Wärtsilä JOVYSTAR COMPACT M
BAX 5480
- 43 -
10.5 Restart from Manual Bypass
Before restarting the UPS from manual by-pass, make sure the “Bypass_SW" selector is in BYPASS
position and the MBCB isolator is closed.
No.
LCD
ACTION
Checks
1
BLANK
Close RCB
2
BOOT LOADING
“BOOT” phase where the UPS firmware can be
updated following the appropriate procedure. All the
LED’s on the front panel are on.
3
EEPROM
READING
Reading of the configuration parameters stored in
the EEPROM.
All the LED’s on the front panel are off.
4
UPS START UP
WAIT PLEASE
The rectifier is supplied and the DC voltage reaches
the nominal value. All the LED’s on the front panel
are on.
The microprocessor checks that all the start-up
conditions are good for restart.
Led #1 lit green. Led #8 lit orange.
5
RECTIFIER
START UP
WAIT PLEASE
The IGBT rectifier bridge starts to modulate; VDC
voltage reaches the nominal value. LED #3 is lit
green: DC voltage present.
6
START UP FROM
MBCB
CLOSE SBCB
Close SBCB
7
BYPASS START
UP
WAIT PLEASE
The microprocessor checks that all the bypass
parameters (voltage, phase rotation, frequency) are
within tolerance. Led #2 lit green. The static bypass
switch is closed. LED #6 lit orange.
8
START UP FROM
MBCB
CLOSE BCB
Close BCB
Closing of the battery circuit breaker.
Led #4 lit green.
9
START UP FROM
MBCB
CLOSE OCB
Close OCB
The load is fed by the static bypass switch. Circuit
breaker MBCB is still closed. Led #7 lit green.
10
START UP FROM
MBCB
OPEN MBCB
Open MBCB
The load is fed by the static bypass switch and the
inverter can be started. LED #8 off.
11
INVERTER START
WAIT PLEASE
The modulation of the inverter bridge is started. The
AC voltage reaches the nominal value. The
microprocessor checks the synchronization with the
bypass line.
12
START UP FROM
MBCB
MOVE BYP -
SWITCH
Move the selector “NORMAL-BYPASS” to NORMAL
The load is transferred to the inverter. Led #5 lit
green.
13
START UP END
WAIT PLEASE
The microprocessor checks that all the output
parameters (voltage, current, frequency) are within
the tolerance limits.
14
UPS MODEL
OUTPUT
VOLTAGE