Hardy HI 6600 Series Modular Sensor System - Manual (Page 126)

HI 6600 Series Modular Sensor System User Guide
Page | 126
NOTE When connecting two IT Junction Boxes together to connect 8 load points, you must run an
external 5 Volt DC power supply if you will run C2 cabling a long distance. You cannot use a
higher voltage power supply due to over voltage damage to your Hardy controller. For more
information, visit the Hardy Knowledgebase and search under external excitation voltage.
Excitation monitor is the current draw on the excitation voltage from the weight
controller. When using an external power supply the excitation monitor will not function
properly. The internal excitation voltage is not being used, therefore no current draw,
and the excitation monitor will improperly report a failure
HI 6010 Summing Box Diagram
NOTE When connecting a Hardy Summing Box to a HI 6610 WPM you must remove the two factory
installed jumpers on pins 1 & 2 and on pins 5 & 6 on the module and install C2 and sense
wires. C2 wires carry the commands for Integrated Technician and the C2 calibration
information.