16
4.2. Fault LED Lights up and No Output
4.2.1. Troubleshooting
FIG. 4.2
Check Items
Trouble-shooting
Output Short Circuit
Check if the output end of the UPS is in short
circuit.
Overload(>120%)
Reduce the output load.
MS1K/MS1KR: 1000VA/700W
Battery voltage is abnormal
1. If the battery voltage is under 28.8V, replace the batteries
。
2. Remove the battery, check the charge voltage. If the voltage
is over 43V, the charger circuit is out of order. Refer to fig4.1,
please check U14
、
U10
、
VR1 and other device nearby.
INVERTER Voltage ERROR
Refer to fig.4-4, Check U7
、
U8
、
Q13
、
Q14
。
The Fan on the rear panel is out of
order
1. Check to see if the connection to the fan is
Properly done.
Summary of Contents for 3 MS series
Page 7: ...7 1 2 3 4 5 6 7 8 9 Pin 6 RS232 Rx Pin 9 RS232 Tx Pin 7 Ground...
Page 24: ...24 5 2 Fault LED Lights up and No Output FIG 5 2...
Page 32: ...32 6 2 Fault LED Lights up and No Output FIG 6 2...
Page 39: ...39 Appendix a 1 Wiring Diagram a 1 1 For MS 1K...
Page 41: ...41 a 1 3 For MS3K...
Page 42: ...42 a 2 Placements a 2 1 For MS1K 220V...
Page 43: ...43 a 2 2 For MS2K 220V a 2 3 For MS3K...
Page 44: ...44 a 2 3 For MS3K 220V...
Page 45: ...45 a 2 4 For MS1K 120V...
Page 46: ...46 a 2 5 For MS2K 120V...
