Troubleshooting
Power Barrier Board Diagnostics
Figure 8 Power Barrier Board
Table 1 . Power Barrier Board Diagnostics
ID
Component or Indicator
D4
LED (green)
D5
LED (green)
F3
Fuse, 400 mA, 250 V
F4
Fuse, 400 mA, 250 V
J4
Connector
J5
Connector
28
Function
IS Power
Power
If either F3 or F4 is blown, there is no power to
the IS location. D4 is out.
24 Vdc power input
+12 Vdc intrinsically safe power output
332709D