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FIFE-500 MAX Narrow Web Guide
MI 2700XXXXX 18
CHAPTER 6
TROUBLESHOOTING
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6. Troubleshooting
6.1 Fault Diagnostics – Fault Rectification
An incorrect setting on the FIFE-500 MAX is often the cause of incorrect or undesirable
guiding characteristics. Faults and the procedures for rectifying the faults are described
below.
Fault Description
Probable Cause
Remedy
Reference
Actuator does not
move in Automatic
mode.
System Gain set too low.
or
Sensor Calibration is not
correct.
Increase the System
Gain.
Perform Sensor Setup.
1X.1.6, Gain or
3X.1.6, Gain
1X.1.7, Sensor Setup
Actuator is unstable
in Automatic mode.
System Gain set too
high.
or
Cable connectors are
loose.
or
Sensor Calibration is not
correct.
Decrease the System
Gain.
Tighten all cable
connectors.
Perform Sensor Setup.
1X.1.6, Gain or
3X.1.6, Gain
1X.1.7, Sensor Setup
Actuator moves the
wrong direction in
Automatic mode.
Guide Polarity is
incorrect.
or
Incorrect sensor mode
selected.
or
Sensor Calibration is not
correct.
Perform Autosetup
or
Change the Guide
Polarity manually.
Select MANUAL mode,
then verify the correct
sensor mode is selected.
If necessary, press the
SENSOR key to select the
correct sensor mode.
Perform Sensor Setup.
Auto Setup
Configuration, 1X.1.8,
Automatic set gain or
Manual Configuration,
1X.2.1 Guide Settings
1X.1.7, Sensor Setup
Actuator does not
move in Servo-
Center mode.
Servo-Center Gain is
set too low.
Increase the Servo-
Center Gain.
2X.1.6, Gain
Actuator is unstable
in Servo-Center
mode.
Servo-Center Gain is
set too high.
Decrease the Servo-
Center Gain.
2X.1.6, Gain
Actuator moves to
either end of the
stroke in Servo
Center mode.
Servo Center Polarity
is set incorrectly.
Select MANUAL mode
then change the
Servo-Center Polarity.
Guide Settings,
1X.2.1, Servo-
Center Polarity