CANifier
User’s
Guide www.ctr-electronics.com 10/8/2017
Cross The Road Electronics Page 10 10/8/2017
1.5.2.1. Status LEDs
–
Damaged Hardware
The CANifier can detect certain types of hardware damage. When damage is detected the CANifier will blink in a
periodic fashion as mentioned in the table above.
This is also illustrated below…
Note that the LEDs
never turn off
when indicating this failure mode. Each LED is always
red
or
orange
at any
moment. The
orange
/
red
LED pattern will continue to blink this pattern with
no intermittent change
in LED
activity.
If this is being witnessed, ensure that the LED pattern isn’t simply an intermittent
red
LED blink superimposed on
to the typical
orange
LED pattern. This is typically observed when there is an intermittent wiring issue or when
two or more CANifiers with common device IDs are present on the CAN bus. Both can be checked by connecting
the CANifier directly to the robot controller. Do not connect any other CAN devices and avoid complex wire
harness strategies.
Erratic
red
and
orange
blink patterns are typically caused by intermittent cable issues, or not properly configuring
the device IDs of the CANifiers. Such LED patterns should not be misconstrued as the damaged LED code
mentioned above.
