LSC Lighting APS - Manual (Page 20)

Alarms and Troubleshooting APS
Operator Manual V1.0
Page 16
6 Alarms and Troubleshooting
Warning. No user controls or user serviceable parts are located inside the APS. Refer all
servicing to suitably qualified personnel.
6.1 MAINTENANCE
Ensure that the air vents at the side of the frame are free from obstruction and dust.
Check that all connector screw terminals (if fitted) are tight. This must be performed by a
suitably qualified person.
Check that the APS contains the latest software release.
6.2 TROUBLE SHOOTING
6.2.1 Emergency Mode
In the unlikely event that the APS does not respond to your commands, you can manually
force the APS to switch on all of its outputs. There is a small hole located on the front panel
below the touch screen. Inside there is a button which, when pressed with a small pin or
paperclip, turns ON all outputs (simultaneously) and shuts down the APS monitoring and
control system. The touch screen backlight remains on to show the presence of input power.
The APS remains in this mode until input power is removed.
6.2.2 Tripped Breakers
If a channel is not working check the MCB (Miniature Circuit Breaker) for that channel.
If the MCB has tripped (OFF), firstly try to determine the cause of the breaker tripping. It
could be a blown lamp or a circuit overload or and earth leakage fault. Remember that the
touch screen shows the load current per phase, not per channel. Rectify to problem (replace
the lamp or reduce the load) then restore the MCB. If the MCB continues to trip, refer the
problem to a suitably qualified person.
“Emergency Mode”
switch access hole