Nordson 3100V Series Customer Product Manual page 260

Control
B 2-27
4.
Check the
continuity
of
the
RTD
circuit by measuring the RTD
resistance at other points in the
circuit.
Refer to Table B
2-7 tor
lhe
plug or
harness pins for each
check.
For a
gun RTD, you can check
continuity at
two points: first
at
the hose electrical plug and then at
the harness connected to XP2
on
the control
board.
For a
hose RTD,
you can
check continuity at the hose electrical plug or
at
the harness
connected to XP2
on
the control board. See Figure
B 2-4 for
the
location of XP2 on the control
board.
For the
tank RTD, there are no
further checks you can
make:
go to the next step.
Table
B
2-7 Pins for Checking RTD Resistance
5.
lf you find
a
continuity problem
in
the gun RTD circuit, replace the
hose or replace
the gun RTD harness inside the unit as appropriate.
lf you find a continuity problem
in
the hose RTD circuit, replace the
hose RTD harness inside the
unit.
lf
you do
not
find
a
continuity
problem, go to the next step.
6.
Replace the control board or the control assembly. Refer to
Replacing a Control Assembly Board or Replacing the Control
Assembly in
Repai r Procedures.
Zone with
Faulted
RTD
Gun Electrical
PIug
Pins
'
Hose
Electrical
PIug
Pins
Connector XP2 Harness
Pins
Gun
1
3and5 3and5
9 and
10
Hose
1
N/A
5and8 1and2
Gun
2
3and5
3and5
11
and
1
2
Hose
2
NiA
5andB
3and4
Gun 3
3and5 3and5
13
and
14
Hose 3 N/A
5and8
5and6
Gun 4
3and5
3and5
15
and
16
Hose
4 N/A
5andB 7and8
Gun
5 (See Note
A)
3and5
3and5
25 and26
Hose
5 (See Note A)
N/A
5andB
29 and 30
Gun
6 (See Note
A)
3and5
3and5
27 and28
Hose 6 (See Note
A) N/A
5and8
31 and
32
Tank N/A N/A 33 and 34
NOTE
A:
Some units
can accept only four hoses and four guns.
@000
Nordson Corporalion
All rights reserued
41-3000y
lssued 5/00
82
EN-04-[3V-X-4XXVj-s