Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
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The following shows typical information output by a fully functional controller during
Self Test during Part Two, and summarizes the tests it performs:
Self Test Output
Examples
Sequences the phase amber LED’s on
each fitted lamp switch card. This
allows the operator to confirm that the
controller has recognised all Lamp
switch cards that are fitted and that
each is being addressed correctly.
If satisfied that the controller has
correctly recognised the Lamp Switch
cards the operator initiates the second
stage of the test by pressing the level 3
push button again. The tests now
continue with Lamp Supply switched on.
**** IMPORTANT ****
All LED Signals to
Be covered before
Continuing...
The second test stage is undertaken
with power applied to the Lamp
Switch cards.
No mains supplies are present on the
Lamp switch cards (LSLS)
Lamp supply is now applied to the lamp
switch cards and checks that no outputs
switch on. Should return 0V
Lamp Supply
switching –
Relays & FETs
Measure lamp supply and report value
Monitor Validation test – Checks that
the monitor validation is working as
expected
Measures and reports the dim lamp
supply
HPU Supply
Arrangement
and relay tests
Lamp Supply relay tests. Checks that
each relay on the HPU can switch off
the lamp supply.
From the HPU relay test, determines
how the controller is configured to
provide lamp supply
HPU Relays switch
off LSLS cards:
A:All LSLS Off
B:All LSLS Off
Controller Set-Up:
‘Fail To Black-Out’
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