The Spray Monitor module LEDs and relays default to normally off (relays open). During normal operation, the LEDs remain off and the relays remain open (unless the failsafe mode has been changed to closed) during normal operation. When a fault occurs, the appropriate LED lights and the appropriate relay closes. The LED and relay affected return to their normal state when the fault is resolved.
Use this procedure to toggle the LEDs and relays to make sure they are functioning.
CAUTION: Shut off the coating system before testing the Spray Monitor relays. Testing the relays with the coating system operating will generate an alarm and shut down the system.
Touch the information and setup bar on the appropriate Spray Monitor faceplate.
Select Spray Monitor Configuration from the drop-down menu.
Touch the Diagnostics button at the top of the Spray Monitor Configuration window.
NOTE: To prevent an operator from accidentally tripping the relays and shutting down the coating system, you must turn on the diagnostics mode before you can use it.
Touch the Test Mode button toggle it On. The switch backgrounds change from gray to green and the switches move if necessary to show the current operating state of the LEDs and relays. The Spray Monitor is now in diagnostics mode.
Touch the switches as necessary to set the LEDs and/or relays to the desired state. The actual LEDs and relays on the spray monitor will not change until you perform step 5.
Switch Status
Touch the test buttons to test the LEDs or relays. To return the LEDs and relays to their actual operating state, touch the button again.