Chuphotic KR6000 - 3 Working Procedure

KR series（6-10kVA）user’s manual
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3.1.3Working Procedure
When 220Vac normal, main DC circuit has DC voltage supplied for DC-AC AC-inverter which
outputs stable 220Vac and charges battery at the same time. Whenever commercial power was
low or broken down suddenly, the battery group would feed back electric power to DC circuit
through DC/DC voltage-boost module. There is no transfer time from mains supply to battery
supply. When batteries’ energy is used up, UPS would send out audio-light warning till battery
voltage drop to the discharge limitation point then UPS would stop inversion and emit lasting
sound. In addition, UPS has overload protection. When overload (125% full load) happens,
UPS would turn to bypass supply and return if load recovers normal. When more serious
overload (over 150% full load) appears, UPS would halt inversion and switch to bypass
supply-at the time the switch may have jumped. After fault of load eliminated, as long as turn
on the switch, UPS will restart to work again. Audio-light warnings will always go with UPS
when UPS abnormal. The warnings or protections are shown in detail in Table 3.1-1.
Table 3.1-1 The Functions of Abnormal Status and Warning Protections
UPS Status
Beep
Indicators On Panel
LCD Display
Protection
/Warning
Normal
No beep
INV. On, Line on,
Bypass off, Fault off,
Output on
“Output Voltage
220.0 V ”
No.
105% overload
Once every 1.5 sec
INV. On, Bypass off,
Fault off, Output on.
“Output 220.0V
OVERLOAD ”
Turn to bypass
supply in 10 min
125% overload
Long beep
Bypass on, INV. Off,
Fault on, Output on in 1
min
“Output 220.0V
OVERLOAD ”
Turn to bypass
supply in 10 min
150% overload
Long beep
INV. Off, Bypass on,
Fault on, Output on
“Output 220.0V
LOAD PROTECT”
Protected
Low-voltage point
Once every 0.5 sec
INV. On, Line off,
Bypass off, Fault off,
Output on
“Output 220.0V
BAT. LOW ”
Waning
Battery voltage below
protection point
Long beep
INV. Off, Line off,
Bypass on, Fault on,
Output off.
“Output 220.0V
BAT. PROTECT”
Protected
Input breaker cutoff or
input abnormal
Three beep with
100ms interval every
10 sec
INV. On, Line off,
Bypass off, Fault off,
Output on
“Output 220.0V
LINE FAIL”
Warning
Over temperature
Long beep
INV. Off, Line off,
Bypass on, Fault off,
Output on
“Output 220.0V
OVER TEMP”
Protected
Output over-voltage,
Output low-voltage
Long beep
INV. Off, Bypass on,
Fault on, Output on
“Output 220.0V
INVERTER FAIL”
Protected