INHIBIT input polarity is set wrong. Set parameter 19 to the correct
value. Refer to page
4
17 for more information about setting controller
para
meters.
5
New software was installed during routine maintenance.
or
Non-volatile memory contains inv
alid data or has malfunctioned.
Reset all parameters to their default values:
Caution: T
his procedure will erase all previously entered parameter
settings! Be sure to record all current settings on page 39 before
perfo
rming this step. If you are installing new software, then you must
record the current settings before installing the new microcontroller
chip.
1. Turn the AC power off.
2. Press and hold the EXIT button.
3. Turn the AC power on
.
4. When the ‘reset’ message appears on the numeric display, release the
EXIT button.
5. Set parameter 2 (end-of-travel mode) and other parameters to their
previou
s values. Refer to page 17 for more information about setting
controlle
r parameters.
Sensor polarity is wrong. The value of parameter 3, 4, or 50 must be
changed for the selected sensor. Refer to page
6
17 for more information
about setting controlle
r parameters.
Servo gain is too high. Decrease the value of parameter 5. Refer to page 7
17 for more information about setting controller parameters.
End play in the actuator or mounting. Press the MANUAL button and
then press IN and OUT buttons several times. Actuator operation should be
smooth and free, without binding. Firmly grasp the web guide mechanism
moving part and push and pull to check for end play. Observe the actuator,
mechanical components, and mounting hardware. There should be no
observable motion in the mechanical system. If motion is noted, repair the
web guide or actuator as required, or return the equipment for repair.
8
9
Sensor in wrong position.
Unwind stand: The
sensor should be located down-web, close to the last
shifting idler roll. Refer to the guide application drawings on page 137.
Winder stand: The
sensor should be located up-web before the last fixed
idler roll, one to two web widths from the shifting base. Refer to the guide
application drawings on page
137.
Intermediate guides: Th
e sensor should be placed close to the exiting
idler roll. Refer to the guide application drawings on page 137.
Excessive chuck wobble. Decrease the web speed or re-chuck the roll of
material.
10
Web tension is low or tension control varies. Increase the web tension
or repair the tension control.
11
MICRO 4000
NET Web Guide Control System
12
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