And The B2-20 - Nordson 3100V Series Customer Product Manual

B
2-2O
Control
Checking the
480 Vac
Distribution Board Harnesses
and the Transformer
Follow this procedure to check the harnesses on the 480 VAC distribution
board and the transformer.
WARNING:
Risk of
equipment damage, personal injury or
death.
Disconnect and lock out electrical power to the unit,
including inpuVoutput
(l/O) lines.
1.
Place the unit's POWER switch
in
the off position, disconnect and
lock
out electrical power to the unit at the branch circuit disconnect
switch, and disconnect and lock out electrical power supplied through
any l/O wiring.
2.
Open
the electrical enclosure. Refer to Opening and Closing the
Electrical Enclosure.
3.
Use an ohmmeter to check the continuity of the harnesses connected
to the following connectors on the 480 VAC distribution board and
take action as directed. See Figure
B
2-4tor
the location of
connectors on boards.
Harness
Connector Check continuity
across harness
pins...
Continuity
exists?
Action
480 VAC
distribution board to
transformer primary winding
X1D
1
and3
No Replace the harness.
Yes Go to
the
ne)d step.
480 VAC
distribution board to
transformer secondary
winding
x1D 6and8
No Replace the harness
Yes Go to
the next step.
480 VAC
distribution board to
TBlA
and
TB1 B
x3D
2and4
No
Replace the harness
Yes Go to
the
nelt
step.
82
EN-04-[3V-X-4XXVj-5
41-3000v
lssued 5/00
@000
Nordson Corporation
All dghts reserved