Nordson iControl - Page 79

Troubleshooting
4-29
Part 1105779-04
E 2014 Nordson Corporation
CorrectionCauseProblem
No movement from
reciprocator in
response to move
command
(continued)
Remote disable applied to
reciprocator controller. No
status display on iControl
screens.
If Nordson USA ColorMax system:
Disable action is applied by a remote system
control panel keyswitch. In the Disable
position, the keyswitch opens the disable
input circuit at the controller.
No corrective action is required unless the
keyswitch Normal position does not allow
motion. Refer to your system drawings for
circuit details.
If not Nordson USA ColorMax system:
Apply jumper to force On the remote disable
input. Refer to system drawings for jumper
application.
No reciprocator
response when Auto
mode selected
A fault has occurred
preventing Auto operation.
Check iControl alarm screen.
Identify the fault and correct. Review the
related faults and corrections listed in this
table.
iControl reciprocator
configuration settings have
not been completed.
Refer to Network Configuration and
Reciprocator Configuration in the iControl
Operator Interface manual. Make sure all
required settings have been made and are
correct.
Refer to the In/Out Positioner/Reciprocator
Control Panel drawings in Section 7 of this
manual and make sure all connections have
been made correctly.
Reciprocator changes
direction before or after
the programmed
turn-around position in
Auto mode
Turn-around offset not set
correctly.
An error close to 
1
/
2
in. of the set
turn-around position is normal. Before making
adjustments to the offset setting, make sure
the encoder resolution is correct. Refer to
Reciprocator Configuration in the iControl
Operator Interface manual.
Incorrect reciprocator
encoder resolution entered.
The accuracy of the displayed position versus
the actual position of the reciprocator is
determined by the configured encoder
resolution. Check the encoder resolution
value.
Reciprocator does not
display 0.0 position
after the homing
process
Reciprocator has
overtraveled the position
slightly before coming to a
stop
This is normal. The position displayed after
homing is the actual position. During homing,
the 0.0 position is set at the forward limit, then
the reciprocator moves down 1 inch before
stopping. The stop action produces the
overtravel.
Continued...