MicroE Mercury II 6000V - Manual (Page 21)

Section- D - Encoder Troubleshooting Page 21
Troubleshooting
D1.0
Problem
The Power/Calibration indicator
will not come on.
Solution
• Make sure that the SmartPrecision
™ II
electronics’ 15-pin D-sub connector is fully
seated and connected.
• Confirm that +5 Volts DC is being applied to
pin 7 and 8 on the SmartPrecision II electronics’
15-pin connector and that pin 2 and 9 is
connected to ground.
Problem
Can't get the SmartPrecision
II electronics’
"Signal" LEDs better than red or yellow; or the
green, “ Proper Alignment” indicator doesn't
stay illuminated over the full length of the scale.
Solution
• Verify that the sensor is mounted in the correct
orientation with reference to the scale and scale
mounting reference edge. Refer to the Interface
Drawing.
• Verify that the sensor has been aligned to the
scale and that the mounting screws are tight.
Check the dimensions for the mechanical
mounting holes (and clamps if any) to make
sure that the sensor is correctly located over
the scale in the Y and Z dimensions. Refer to
the Interface Drawing.
• Check that the scale is firmly mounted and
can't jiggle or move in any direction other than
the axis of motion.
• Make sure that the scale is clean over its entire
length or circumference.
Problem
The green Power/Calibration indicator LED or limit
LEDs are flashing unexpectedly.
Solution
• Part of the normal setup procedure is to
activate the SmartPrecision II Electronics’
Calibration/Setup process by pressing the
recessed button in the electronics module.
The Power/Cal. LED or limit LEDs will begin
to flash until the relevant setup process is
complete. See the instructions beginning at
section B2.2.
Problem
Can't Complete the Calibration/Setup process -
the green Power/Calibration indicator doesn't
stop flashing.
Solution
• Verify that the sensor is mounted in the correct
orientation to the scale for the desired index mark.
Refer to the Interface Drawing.
• Refer to section B1.0 to insure proper sensor
alignment and index marker operation.