ProBlue Flex 400/480 Volt Transformer
F-20
Part 1128350_02
E 2020 Nordson Corporation
Troubleshooting
The following table provides transformer-specific troubleshooting guidance.
For melter related troubleshooting information refer to one of the following
manuals:
- Section 6, Troubleshooting in the Core ProBlue Flex Adhesive Melter
Manual (P/N 1128350)
- ProBlue Flex Adhesive Melter Using the OLED User Interface Manual
(P/N 1128351).
- ProBlue Flex Adhesive Melter OEM User Interface Manual
(P/N 1129255).
Problem Possible Cause Corrective Action
1. No power to melter Problem with customer power source Check all three phases at terminal block.
No voltage plug installed Install correct voltage plug at J1 on the
transformer PCA tray.
Loose/disconnected cables Check cable between transformer and J4
on the
transformer PCA tray.
Check connections between transformer
service terminal block and J2 on the
transformer PCA tray.
Check connections at J5 on the
transformer PCA tray.
Blown fuse Check fuses F3 and F4 on the
transformer PCA tray.
Problem with transformer Check voltage into primary of
transformer(s) and voltage at
secondaries.
2. Tank and/or manifold
not heating, but power
to melter
Programming/control issue Turn heaters on/check that tank set point
is correct (not 0).
Loose/disconnected cables Check connection at X10 on 6 channel.
Check connection at J6 and J7 on the
transformer PCA tray.
Check connections along heater harness
(intermediate connections, terminals of
heaters, connection back to J3 on the
transformer PCA tray).
Problem in heater Check the resistance of the tank, grid,
and manifold heaters; refer to
Troubleshooting in the Core ProBlue Flex
Adhesive Melter Manual (P/N 1128350).
Continued...