Troubleshooting
7-47
Part 1123087_02
3/2014 Nordson Corporation
Table 7‐4 Hose Interface Board LEDs (contd)
Designation Description Normal Operation
Abnormal
Operation
Corrective Action
DS13 Eco bypass— indicates
whether applicator
signals are bypassing the
EcoBead board (red) or
not (green)
Green when
EcoBead board is
present
Red when
EcoBead board is
not present
Red when
EcoBead board is
present
Green when
EcoBead board is
not present
Verify proper
connection between
hose interface board
and EcoBead board
Remove/replace
EcoBead board
Remove/replace hose
interface board
DS14 Applicator output 2—
indicates when the
applicator signal is
present
Green when signal
to the applicator is
on
Off when signal to
the applicator is off
May flash red at
applicator
switch-off
Never green when
input signal is
present
Verify Output Enable
is green
Verify proper
connection
Verify output is not
shorted
Remove/replace hose
interface board
If always green:
Verify proper
connection
Remove/replace hose
interface board
If always red:
Verify proper
connection
Remove/replace hose
interface board
DS15 Output enable
—indicates whether all
applicator output signals
are forced off
Green when all
applicator outputs
are enabled
(should be green
most of the time)
Red when all
applicator outputs
are forced off,
when melter is not
ready, and during
software upgrades
Always red Verify communication
cables and
connections
Remove/replace hose
interface board
Continued...