3M MicroTouch EX112, Reference Manual

Page: 14 / 40

14 3M™ MicroTouch™ Controller EX Serial Reference Guide
3M Touch Systems, Inc. Proprietary Information -- 29087v03
Table 4 LED Diagnostic Codes for EX Serial Controllers
Self Test
Condition LED
Flashes
Self
Test
Bit
Description
What to do...
RAM Data
Error
2
1 0 Data side checksum error Reload program code.
RAM Code
Error
2
2 1 Firmware EEPROM
checksum verification error
Reload program code.
STRAY Error
1
3 2 Unable to initialize stray
cancellation Replace controller. If error
reoccurs, might be a sensor
problem.
NOV Error
3
4 3 Parameters invalid (using
defaults) Restore defaults. If fault persists,
replace controller. If error reoccurs,
might be a sensor or cable
problem.
HDW Error
1
5 4 Controller hardware failure
(phase/gain initialization) Cycle power. If fault persists,
replace controller.
Reserved 6 5 Reserved
CABLE Error 7 6 Cable NOVRAM
linearization data invalid At startup, the cable NOVRAM
error will flash the LED until the
controller receives a status
command from host.
NOV2 Error 8 7 Controller NOVRAM
linearization data invalid Replace sensor or perform a 25-
point linearization. Contact
Technical Support.
Reserved 9 8 Reserved
EEPROM
Error
2
10 9 EEPROM is not working Reload program code.
NOV5 Error 11 10 Controller ID is not valid Restore defaults. If fault persists,
replace controller.
NOV6 Error 12 11 Interface configuration
values are not valid Restore defaults. If fault persists,
replace controller.
NOV7 Error 13 12 Touch configuration values
are not valid Restore defaults. If fault persists,
replace controller.
Reserved 14 13 Reserved
Resistance
Error 15 14 Sensor resistance is out of
supported range Cycle power. If fault persists,
replace sensor.
Backplane
Error 16 15 Low resistance path from
backplane to sensor Cycle power. If fault persists,
replace sensor.
Corner Error 17 16 Corner drive offset level is
too high Cycle power. If fault persists,
replace controller.
Fixed Cal Error 18 17 Fixed 2-point cal error high Cycle power. If fault persists,
replace controller.
Note 1: this is a fatal error.
Note 2: this error is detected by the ROM code
Note 3: indicates that the EEPROM is not formatted when given by the ROM code