39
6
Buzzer beeps every 0.5
seconds and LCD
display “output overload”
Overload
Remove some load
7
Buzzer long beeps, LCD
display “29”fault code
The UPS output is in short
circuit
Make sure the load is not in short
circuit, and then restart the UPS.
8
The UPS only works on
bypass mode
The UPS is set to ECO
mode, or the transfer
times to bypass mode are
limited.
Set the UPS working mode to UPS
type(non-parallel) or to reset the times
of transferring to bypass or re-start the
UPS
9
Cannot Black start
Battery switch is not
properly closed:
Battery fuse is not open:
Or Battery low:
Battery quantity set wrong;
Power breaker in the rear
panel not switch ON.
Close the battery switch:
Change the fuse:
Recharge the battery:
Power ON the UPS with AC to set the
battery quantity &quantity;
Switch on the power breaker.
10
Buzzer beeps
continuously and LCD
indicates 1,3,5,9,15, etc
fault codes
UPS is out of order
Consult with your local agent for repair
Appendix 3 USB communication port definition
Definition of port
：
Connection between PC USB port and UPS USB port.
PC USB port
UPS USB port
Description
Pin 1
Pin 1
PC : +5V
Pin 2
Pin 2
PC : DPLUS signal
Pin 3
Pin 3
PC :DMINUS signal
Pin 4
Pin 4
Signal ground
Available function of USB
◆
Monitor UPS power status.
◆
Monitor UPS alarm info.
◆
Monitor UPS running parameters.
◆
Timing off/on setting.
Communication data format
Baud rate ---------- 9600bps
Byte length ---------- 8bit
End bit ---------- 1bit
Parity check ---------none
CAUTION!
USB, RS232 and RS485 interface cannot be used at the same time,
you can only use one of them at one time.
