Nordson freedom - Hose Interface Board (contd)

Troubleshooting
7-45
Part 1123087_02
 3/2014 Nordson Corporation
Table 7‐4 Hose Interface Board LEDs (contd)
Designation Description Normal Operation
Abnormal
Operation
Corrective Action
DS7 Applicator output 4
—indicates when the
applicator signal is
present
Green when signal
to the applicator is
on
Off when signal to
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
DS8 NordBus
communications
activity—indicates when
activity exists on the
NordBus
Red flashes
indicate activity
from other devices
Green flashes
indicate activity
from hose interface
board
Mostly red flashing,
with some green
No flashing red or
green
Check
communications
cable and connection
Remove/replace hose
interface board
DS9 Applicator input 1—
indicates when an
applicator input signal is
applied
Green when
applicator signal is
applied
Off when no
applicator signal is
present
On when applicator
signal should not
be applied
Verify voltage is within
limits
Verify proper
connection
Remove/replace hose
interface board
If green when
applicator signal
should not be present,
verify proper
connection
Continued...