R.V.R. Elettronica TLC300, User Manual

Page: 23 / 103

TLC300
19 / 42 User Manual Rev. 1.0 - 07/04/03
7.2 Change over card
These are normal telemetry cards but are used by the managing firmware for
controlling the parameters of the change over card which affect machine operations.
Acquires telemetry data in two ways:
• Balanced analog with a limit voltage which can be adjusted between 2V and 12V
using a trimmer (eight inputs);
• Unbalanced analog with a limit voltage fixed at 5V, or digital with 2.2 KOhm internal
pull-up which can be switched on using a jumper (sixteen inputs).
The telemetry card also makes the contacts of eight relay switches available in output
(max. 24V - 0.5A).
This is a normal telemetry card, but comes used from the management software of
the system for check any basic parameters. The inside address of the card must
always be the number 1. Externally is easily recognizable for the connectors DB25
and to the line of trimmers.