Dale Power Solutions Ltd
User Manual
36
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No Display message
Description
45
Bypass over current
An over current alarm is given
46
Ext. fire alarm
External fire detector has been activated
47
Ext. smog alarm
External smog detector has been activated
Frequently asked questions
No
Problem
Causes
Solution
1
No LCD display
Display cable not plugged in
correctly
Unplug the cable from the rear of the
LCD panel and then plug it in again
2
Blue screen LCD
LCD interference
3
Red LED on module
Module not plugged in correctly
Pull out the module and then push
back in
4
UPS won’t start
Input breaker is open
Close the input breaker
AC input is out of specification
Check that the voltage and
frequency are within limits
5
No output from UPS
Output breaker is open
Close the output breaker
UPS disabled at the LCD control
panel
Enable the UPS using the LCD
control panel
6
Inverter not working
Inverter not started
Press Inverter ON for 2 seconds
7
UPS works on bypass only
Mains breaker is open
Close the mains breaker
UPS working in ECO mode
Set the UPS to work in on-line mode
Switch Bypass times out (If the UPS
has repeatedly switched to bypass
due to over current/temp more than
the ‘bypass switch times’)
Increase the time or restart the UPS
8
Can’t ‘black start’ the UPS
Battery breaker is open
Close the battery breaker
A battery fuse is open
Change the fuse
Battery low
Recharge the battery
Appendix 1 Signals options
RS232 serial port
E400 series units are fitted with a standard RS232 serial port, which can be used to:
■ Monitor the UPS power status
■ Monitor the UPS alarm information
■ Monitor the UPS running parameters
■ Perform a battery test
To enable RS232 control:
1. Connect the UPS to your computer using the supplied RS232 cable.
2. Load the supplied software onto your computer.
