120 LO HI1. Switch off main contactorand wait 3 min!Replacing motor controllerNew MCMaincontactor2. Leave only ONE motor controllerconnected. Disconnect all others!3. Switch on main contactor!4. Select assignment!5. When all motor controllers areassigned, connect all, switch on maincontactor, and exit this screen.Replacing motor controllerRepair7-6P/N 7105144G 2008 Nordson CorporationVersaBlue_NWReplace CAN Module of Motor Controller (contd.)CAN Bus Terminating ResistorThe last motor controller along the bus must be equipped with a terminatingresistor (120 ).CAUTION: If there are pressure sensors built into the system, the lastpressure sensor receives a terminating resistor instead. Refer to Fig. 7-7.Fig. 7-7 CAN moduleOn the Control Panel: Allocating Replaced Motor Controllers (MC) totheir MotorsExample: On a melter with four configured motors/pumps, the motorcontroller for motors 2 and 4 were replaced because they were defective.When the melter is switched on again, Fig. 7-8 appears.NOTE: If only one MC is defective and thus replaced, the IPC automaticallyassigns it to the correct motor. The operator need not assign manually.Indications lamps show the configured motors/pumps for which motorcontrollers are found. In this case: Pumps 1 and 3.Allocation is possible only when the system has found only one motorcontroller (indication lamp New MC lit). This is why the replaced motorcontrollers must be integrated into the CAN bus individually.There is a switch for the main contactor in this screen to allow work to bedone when the melter is deenergized.Fig. 7-81. Switch off the main contactor and wait 3 min.NOTE: The screen can be scrolled up and down.2. Leave only ONE controller connected. Disconnect all of the others fromthe power supply. In this case: Disconnect the operating voltage fromMC 1, 3 and 4.3. Switch on main contactor.4. Select assignment. Touch to go to Fig. 7-10.Fig. 7-9
