Rockwell Automation 4100 ALEC AXIS LINK ENCODER CONVERTER - Manual (Page 41)

Publication 4100-5.3 - June 1999
Setup 33
Powering the ALEC After setting the Mode and AxisLink Address switches and making the
necessary connection as described in the installation section of this
manual, you can apply power to the ALEC. The CPU OK and AL LEDs
should turn green after applying power to the ALEC. Green LEDs
indicate that it is working properly.
If both LEDs do not turn green at powerup, remove power from the
ALEC and check all of your connections and the power supply fuse.
Re-apply power. If both LEDs still do not turn green after powerup,
shut down the ALEC and remove all ALEC connectors except power.
Apply power again. If both LEDs now turn green, reinstall the
connections one at a time until the problem is found. If both LEDs still
do not turn green, disconnect everything and return the ALEC to
Allen-Bradley for repair.
The ALEC has over current protection provided by a fuse on the
printed circuit board. The fuse is 1/4 inch by 1 and 1/4 inches, 2
Amperes. If the fuse blows, always determine and correct the reason it
blew before installing the new fuse.
ATTENTION
!
Check the status of other devices connected to the same
AxisLink cable before pressing the Reset button on the
ALEC.
ATTENTION
!
Never replace the fuse with the unit under power. When
replacing the fuse, make sure it is of the proper rating.
IMPORTANT
Before powering the ALEC, make sure that it has been
properly installed and configured according to the
instructions contained in this manual.