AB Quality Allen-Bradley 1394 User Manual page 190

9-24 Troubleshooting
Left front
socket
Publication 1394-5.0 — May 2000
4. Check the circuit resistance of the two DCLM fuses by
connecting the probes of an ohm meter as described in the table
below. Refer to Figure 9.5 for the connector locations.
Connect the Connect the
red lead to: black lead to:
Top bus (DC+) Left front
power connector socket
Bottom bus (DC-) Right front
power connector socket
Figure 9.5
Checking for a Blown Fuse
Slide mechanism
Right front
socket
If the meter
reading is:
Open (high ohms)
Short (low ohms) Good.
Open (high ohms)
Short (low ohms) Good.
1394-DCLM
The 1394-DCLM fuse is:
Blown. Replace the
1394-DCLM.
Blown. Replace the
1394-DCLM.
Top bus (DC+)
power connector
Bottom bus (DC-)
power connector