Melter control switch (on/off)Heaters LEDAutomatic scan sequenceReady LEDPump keyOperation4-4Part 1032059B 2003 Nordson CorporationManual 41-DURABLUE-MA-02Starting the MelterBefore starting the melter for the first time, confirm that the melter is fully installed including any required inputs and outputs,gun drivers, pattern controllers, or timers. melter’s operating parameters are set up to support thecurrent manufacturing process.Refer to Section 3, Installation, if any of the items listed above arenot complete.To start the melter1. Switch the melter on.The melter: Tests the control panel LEDs Turns on the heaters (the heaters LED turns green) Begins to automatically scan through and display theactual temperature of the tank and each hose and gun that has aset-point temperature that is greater than zero degrees. Thesequence of the automatic scan is: tank, each hose and gun pair,and then back to the tank. Turns on the ready LED (green) when the tank and all of thehoses and guns are within 3 C (5 F) of their assignedset-point temperature.2. Press the pump key to enable the pump. If the system has not reached the system-ready state at the time thatthe pump key is pressed, the LED on the pump key will turn yellow,indicating that the pump is enabled, but not started. The pump willstart automatically when the system-ready state is reached. If the system has reached the system-ready state at the time that thepump key is pressed, the pump will start and the LED on the pumpkey will turn green, indicating that the pump is running. If the melter is set up for manual pump activation, the pump LED willnot turn on and the pump will not start until the pump is manuallystarted using the switching device.NOTE: You can change the way the pump key operates by changingparameter 8 (automatic pump on). Refer to Appendix B, OperatingParameters.