LEGRAND NUMERIC HPi 33 EVO User Manual page 39

No. Problem
The UPS only works on
8
bypass mode
9 Cannot Black start
Buzzer beeps
continuously and LCD
10
indicates 1,3,5,9,15, etc
fault codes
APPENDIX 3 USB COMMUNICATION PORT DEFINITION
Definition of port:
Connection between PC USB port and UPS USB port.
PC USB port UPS USB port
Pin 1 Pin 1
Pin 2 Pin 2
Pin 3 Pin 3
Pin 4 Pin 4
Available function of USB
Monitor UPS power status.
•
Monitor UPS running parameters.
•
Communication data format
Baud rate ---------------9600bps
End bit -------------- 1bit
USB, RS232 and RS485 interface cannot be used at the
same time, you can only use one of them at one time.
Possible reason
The UPS is set to ECO mode
Battery switch is not properly
closed: Battery fuse is not
open: Or Battery low: Battery
quantity set wrong; Power
breaker in the rear panel does
not Switch ON.
UPS is out of order
Description
PC : +5V
PC : DPLUS signal
PC : DMINUS signal
Signal ground
Monitor UPS alarm info.
•
Timing OFF/ON setting.
•
Byte length
Parity check -------------- none
CAUTION!
Solution
Set the UPS working mode to
Normal mode
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.
Consult with your local partner for service.
-------------- 8bit
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