ALFAMATIC CSQ-Visual, Руководство по установке, Страница: 5 / 16

5
The correct alignment of the encoder takes place using its zero notch and the T.D.C. withdraw
cylinder signal.
1.3 Internal cards
There are two cards inside the CSQ–Visual :
frontal (CSQVMB) supports the display, keyboard and main CPU.
input e output (VIO) for the connection of input signals, output signals and transducers.
We make all the cards ourselves and they can be altered to suit your specific requirements.
1.4 Electric wiring
The following information explains how to install the electric wiring.
1.4.1 Information for connection to an external controller (PLC)
To connect the CSQ-Visual to a PLC, the latter must have PNP positive logic. The inputs and
outputs of the instrument are optoinsulated from the instrument’s control electronics. The power
supply of the instrument’s inputs and outputs must be the same that powers the inputs and outputs
of the PLC. We recommend the use of at least one output (START signal) and three inputs of the
PLC (GO, GOOD and REJECTED). If necessary, with the press controlled directly by the
instrument, it is possible to use a single input to know whether the piece is good (GOOD output)
and a single output to control the start of the pressing cycle (START input).
Remember that, in all cases, it is always necessary too connect the T.D.C. input of the
CSQ-Visual .
The T.D.C. signal can be acquired directly by a limit switch activated with the press in the resting
position. However, the signal indicating that the press is in the resting position is almost always
used by the PLC. In this case the signal to be given to the instrument may be taken parallel to that
delivered to the PLC.
1.4.2 VIO9 card wiring
Attention: this information refers only to the VIO9 card. Check that the correct type of card is
fitted.