Dynamic Message Signage DMS Inspection and Testing (VMS LUS, SMVMS & VTMS Signs)

Pre-Installation Requirements

Inspect exterior and interior of sign for damage.
Visually inspect power terminations within sign at main lugs and power supplies.  Verify that connections are tight, clean, and landed in the correct polarity.
Using a safe procedure, verify voltage from the panel board main breaker input lugs to neutral and record values for L1 to Neutral.
Using a safe procedure, verify voltage from the panel board main breaker input lugs to neutral and record values for L2 to Neutral.
Using a safe procedure, verify voltage from the panel board main breaker input lugs to neutral and record values for Neutral to Ground.
Using a safe procedure, verify DC voltage on the breaker input in the sign display; value should be 24 VDC +/- 10%.
Turn on sign controller power switch and verify that the power indicator LED is illuminated.
Display the “All on 100% Burn” test pattern; check that all fans turn on.  Once test is complete, set test pattern to “None”.
Push the vent fan override button in the service control panel, if equipped, for the ventilation fans and verify that they turn on.  Release it and verify that they turn off.

General Requirements

Verify that Manufacturer’s Commissioning has been completed.
Verify that VMS installation satisfies the minimum vertical clearance from the highest point on roadway to lowest point of VMS (or its support structure).

Electrical

Verify that all power conductors are of the size and type required and properly terminated.
Verify voltage at cabinet is within +/- 10% of 120 VAC or    240 VAC.
Verify voltage in sign load center is within +/- 10% of          120 VAC or 240 VAC.
Verify sign and cabinet are properly grounded.
Verify that after power cycling all equipment turns back on properly.

 

Operations Test

Verify that controller correctly identifies the address of the controller, its ID, current time, and date.
Verify that controller can be connected to laptop.
Verify that a new message can be created, stored in memory, and recalled for display.
Verify proper display of test messages and graphics in controller memory.
Verify that sign can be blanked out.
Verify proper installation and aiming of display modules.
Verify that display modules are properly wired by displaying a text message that identifies the module’s correct row and column position.
Verify operation of every pixel, including uniform brightness at all brightness levels and proper electrical current consumption.
Verify that brightness can be manually adjusted from controller.
Verify that brightness can be set to “Auto” in controller and test operation of photo sensor(s).
Verify door switch alarm.
Verify correct wiring of alarms and sensors to the controller’s input.
Verify that all diagnostic routines can be successfully performed.
Verify operation of sign monitoring through the controller.

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