Removing The Manifold Rtd; Checking The Operation Of The Power Relay - Nordson ProBlue Flex Product Manual

Troubleshooting
6-24

Removing the Manifold RTD

Checking the Operation of the Power Relay

Part 1128350_02
1. Remove the RTD from its retention hole.
2. To replace the RTD, insert the RTD into its retention hole.
See Figure 6-1 for the location of the indicators on the board.
The pre-conditions for this diagnostic procedure are as follows:
-
The power switch is On and indicator DS21 on the LVC is illuminated.
-
Indicator DS22 illuminates to green.
If DS22 illuminates to red, go to Removing the Level Sensor, Melt
RTD, or Melt Thermostat given earlier in this section.
NOTE: If a zone is undertemperature, under voltage, or an open heater fault
reoccurs after re-energizing the melter, reset the fault and turn the Master
Heater control back On.
1. Press on the OLED user interface to enable the Master
Heater Control.
2. Check LVC indicator DS1 and do one of the following:
a. If DS1 does not illuminate, go to step 3.
b. If indicator DS1 does illuminate, go to step 4.
3. Isolate the failing component:
a. De-energize the melter.
b. Remove the cable connected to LVC X3.
c. Re-energize the melter.
d. Set the Master Heater Control On.
4. Check if indicator LVC DS1 illuminates.
If DS1 illuminates, replace the power distribution board or replace the
LVC board.
E 2020 Nordson Corporation