Control System On 480 Vac Three-Phase Units B - Nordson 3100V Series Customer Product Manual

B
2-4
Control
Control
System on 480 Vac
Three-Phase Units
3.
TroubleshootingTables
Your hot melt unit operates on 480 VAC three-phase
(32)
incoming
power, which you
connected to
a
terminal block on the
480 VAC
distribution board.
A 480 VAC/230 VAC 1O isolation
transformer provides 230 VAC power to the control assembly. The tank
heaters operate on 480 VAC
power.
A solid-state relay controls the
heater power to the tank heaters through the control board.
Fuses
F1,
F2,
and F3
on
the 480 VAC distribution board provide protection for the
480 VAC power section, which includes the transformer and the tank
heaters.
Gun and hose heaters are powered by the power board and
operate at 230 VAC. The tank
heater
circuit
on
the power board is not
used on 480 VAC units.
The following troubleshooting tables describe the kinds of control system
problems
you may encounter and provide corrective actions for handling
those
problems. When
necessary, the tables refer to more detailed
troubleshooting procedures.
Refer to the appropriate troubleshooting table for the type of problem you
are experiencing:
.
lnternal, Hose, or Gun Zone
Not
Heating
.
Settings Changed
or
Lost
.
Unit
Not
Powering On
o
Control System lndicating
a
Warning
-
Out-of-Band Warning
-
UndenTemperature (UT) Warning
.
ControlSystem lndicating a Fault
-
Over-Temperature (OT) Fault
-
Resistance Temperature
Detector (RTD) Fault
-
Fault-Code
Fault
(F1-F7)
82EN-04-[3V-X-4XXVI-s
4't-3000v
lssued 5/00
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