8
48 Er24 Bypass Input found when running on CVCF
mode (CVCF mode not supported)
49 Er26 PFC Over-current
50 Er27 The UPS must be operated in normal mode in
parallel system
51 Er28 Bypass Overload Time out and cut off output.
52 Er29 Charger overcharges battery (>300Vdc)
53 Er30 Inverter Balance error
54 Er31 The settings of both control board and driver
board are not matched together
55 Er32 Sync Signal error
56 Er33 Isolated transformer overheat
57 Er34 Balance function conflict
58 CEr1 Utility voltage out of range
59 CEr2 Bypass Voltage out of range
60 CEr3 Inverter Voltage out of range
61 CEr4 Load Percentage out of range
62 CEr5 Battery Voltage out of range
63 CEr6 UPS Output Voltage out of range
(** Er7, Er19, Er25 are reserved)
9
2.4. Controls and Indicators
2.4.1 UPS Control panel
A LCD Display.
B N+1 (green) LED illuminates when the UPS is operating in the
Parallel/Redundant mode.
C Bypass (green) LED illuminates when the bypass input is normal. The
LED extinguishes in the Battery mode.
D Line (green) LED illuminates when the utility input voltage is within the
acceptable window. The LED extinguishes in the Battery mode.
E On/Alarm Silencer switch is to turn the UPS On or silence the audible
alarm in the Battery mode.
F Up arrow: Go to previous page or change the UPS setting.
G Enter key: To save the changes to the UPS setting.
H Down arrow: Go to next page.
I OFF switch is to turn the inverter off and transfers the UPS to the
Bypass mode.
J Special functions key: Log in/out.
K ECO (yellow) LED illuminates when the UPS is working in the ECO
(economic, Line-interactive) mode.
L Fault (red) LED illuminates when there is an abnormal condition or
there is an internal fault.