Nordson ProBlue Flex - Transformer Function

ProBlue Flex 400/480 Volt Transformer
F-2
Part 1128350_02
E 2020 Nordson Corporation
Intended Use
S 3.0 kVA transformers can only be used with ProBlue Flex adhesive
melters that are specifically designed for 400/480 Volt electrical service.
S Use an input electrical service rated at:
- 400 volts 3-phase without a neutral
Or
- 480 volts 3-phase without a neutral
Unintended Use
S Water wash-down environment
S Explosive atmosphere
Transformer Function
Input electrical service of 400 or 480 volts is split between the melter heaters
and the transformer(s). The melter's manifold and tank heaters operate on
line voltage, which is passed through the transformer to the melter using a
special wire harness. The melter's CPU controls the duty cycle of the
heaters. No change in melter programming is required in order for the
transformer to operate.
The transformers reduce the input e lectrical service to 230 volts and direct
the reduced voltage to the melter's
power distribution board.Thepower
distribution board uses this voltage to power the hoses and applicators and
provide control power to the CPU.
CPU-generatedcontrolsignalsarefedtoadriverboardinthetransformer
which uses high-power Triode for Alternating Current (TRIAC) to switch
power to the manifold and tank heaters.