INSTALLATION
2-4
Document No.: SIG-00-11-10 Version: A.1
2.1.2.1
Current Sensor Output Connection
The current sensor output (J2) is connected using a shielded cable. The shield is
terminated at the current sensor output only as shown in
Figure 2-5. Belden 9939 or equivalent cable is recommended.
CAUTION
USE CARE TO ENSURE THE ELIMINATION OF
ANY FOREIGN ENERGY SOURCES.
CAUTION
ENSURE THAT THERE ARE NO SHORT
CIRCUITS IN THE WIRING BETWEEN THE
CURRENT SENSOR AND THE WIU.
NOTE
The shielded cable used in connecting the
current sensor output to the WIU device I/O
input has the shield terminated at the output
source (current sensor). The shield is NOT
connected at the WIU I/O to avoid creating a
ground loop. Trim any excess shield wire
flush with the wire insulation. Belden 9939 or
equivalent cable is recommended.
Figure 2-5 Shielded Current Sensor Output Connections
CABLE SHIELD
BATTERY
POSITIVE
J1
J2
J4
J2
J3
+
+
+
-
-
-
IN 3
IN 1
IN 2
WIU INPUTS
BELDEN 9939
OR EQUIVALENT
CURRENT SENSOR OUTPUTS ARE
OPEN-COLLECTOR TRANSISTORS
SINKING CURRENT
(INTERNALLY REFERENCED TO
BATTERY NEGATIVE)