UIC GSM FlexJet, Manual

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Page 8
T47541109 Rev. J FlexJet Head Assembly
TECHNICAL PUBLICATIONS
This Document Supports Assembly 47541109 Rev. F
LT1 LT2 LT3 LT4 LT5 LT6 LT7
LT8
Diagnostic
LED
Function ON Indicates… OFF Indicates…
LT1
Theta counts value is negative
from the Home Pulse.
See Notes 1, 2, and 4 Below See Notes 3 and 5 Below
LT2 Theta Home Pulse See Notes 1, 2, 3, and 6 Below
The Theta Encoder counts value
does not equal the Home Pulse.
LT3
Theta counts value is positive
from the Home Pulse.
See Notes 1, 2, and 5 Below See Notes 3 and 4 Below
LT4 Touch-Down Sensors Any Touch-Down Sensor is ON. No Touch-Down Sensors are ON.
LT5 Z Home Sensor
The Stop Bracket is in the Z
Home or upper-most position.
The Z Home Sensor is not on or
is not functioning correctly.
(Out of adjustment, or failure).
LT6 Z Safe Sensor
All Spindles are at the Z Safe or
uppermost positions.
The Z Safe Sensor is not on or is
not functioning correctly.
(Out of adjustment, or failure).
LT7 Mirror In-Range Sensor
The OTH Camera Mirror is
positioned below the
components for imaging.
The In-Range Sensor is not on or
is not functioning correctly.
(Out of adjustment, or failure).
LT8 Head Enable (See Note 7)
The FlexJet Head has power
and the machine recognizes the
head configuration.
Machine power is off, the head is
disconnected from the machine,
or a fuse is blown.
Diagnostic LED Definitions for PC Boards Mounted on FlexJet Heads
(For Heads with Serial Numbers Beginning with FJ09)
Notes
1 If LEDs 1, 2, and 3 are all ON the Theta Encoder is outside the range of 0 ± 4096 counts (about ± 4 degrees).
2 If LEDs 1 and 2 are ON, but 3 is OFF, the Theta Encoder is within -100 of zero.
3 If LEDs 2 and 3 are ON, but 1 is OFF, the Theta Encoder is 100 of zero.
4 If only LED 1 is ON, then the Theta Encoder is from -100 to -4096 counts from the Home Pulse.
5 If only LED 3 is ON, then the Theta Encoder is from +100 to +4096 counts from the Home Pulse.
6 If LED 2 is ON, but LEDs 1 and 3 are OFF, the Theta Encoder value equals the Home Pulse when .
7 LED 8 blinks when the machine is initializing after power up. If the LED continues to blink after initialization is
complete, the machine software and/or hardware cannot recognize the FlexJet Head. If the machine power is on but
LED 8 is not on, the head power is disconnected or a fuse is blown.