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TM70Bi V3.1 (03/09) 1121174.pdf

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17.1.- INTRODUCTION and FUNCTIONAL DESCRIPTION

The A1P4RCAN CAN expansion module provides to the TM70 receiver, 4 relays output and an analogue

output at the same time. The analogue output simulates a digital potentiometer with 64 steps available in

each semi-axis of the power supply. See the diagram block below (size ½ of LR72):

CAN

VOUT

-V

GND

This CAN expansion provides to the user the following outputs :

An analogue output simulated by a digital potentiometer with 128 steps and galvanically isolated.

Free to use four relays outputs, K1, K2,K3 and K4.

These outputs are controlled by CAN BUS, writing in its addresses CANOpen frames. The CAN address of

the electronic card is conformed using the 7 jumpers of P1 connector. Jumper in position 1 corresponds with

the first bit of the CAN address. Thus, inserting several bridges it is possible to select different addresses

from «1 » until «127» (2

), maximum.

Very important : The address « 0 » is not a valid address ; so the board allways must be fitted with at least

one jumper. With one jumper it is possible to configure 7 different addresses.

17.2.- RECEIVER ASSEMBLY and TELE-TEACHING OPTION

LR72 ELECTRICAL CONNECTION

This expansion is connected to the LR72 board using two connectors; 2 pins connector labeled RL4 for

power supply 8-30V (+VI and GND); 5 pins connector labeled RL3 for CAN Bus connection with the following

signals :

Name

Function

GNDCAN

Ground

CANL

CANL bus signal (CANLow signal)

SHLCAN

Shielding

CANH

CANH bus signal (CANHigh signal)

VCAN

Power Supply

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Cervis TM70 Installationshandbuch Seite 60