Quality in Electronic Manufacturing
Pag. 27 di 27
HB 237.16
5 - 1 INPUT AND OUTPUT TROUBLESHOOTING
The instrument provides diagnostics of the logic status of the digital inputs and outputs; according to which display
segments are lit, it is possible to understand whether an input reaches the instrument and if an output has been
energised.
In relation to the status of the inputs, the top segment of the first display from the left is lighted when input 1 is activated;
if the top segment of the second display from the left is highlighted, this means that input 2 has been activated.
For the digital outputs the same applies as for the inputs, considering however the lower segments of the displays (first
÷ sixth display from the left for outputs U1 ÷ U6) and the top segments of the fifth and sixth displays for outputs U7
and U8.
5 - 2 HOW TO COMPLETE THE TECHNICAL ASSISTANCE FAX FORM
We need your help if we are to provide you with a quick, efficient and high-quality service.
Whenever you need the assistance of QEM in dealing with any technical problems that may arise in your
applications and the problem persists even though all the instructions in the "Installation, maintenance and
servicing manual" have been followed, we invite you to complete all parts of the fax form enclosed with the
installation, maintenance and servicing manual and to send it to the QEM assistance office.
In this way, our service engineers will have all the essential information for understanding your problem
(avoiding long and costly telephone calls.
Thanking you for your kind co-operation, QEM wishes you all the best in your work.
NOTE
If you have to send us an instrument for repair, please read carefully the following points.
- When possible, use the original packing; in any event, the packaging must protect the instrument from bumps
during transport.
- Be sure to enclose in the pack a detailed description of the problem you have encountered, together with the part
of the wiring diagram that concerns the instrument. If the problem has been found in the data memory, please
enclose also the instrument programming (set-up, work quotas, auxiliary parameters ...).
- If necessary, ask us specificaly for an estimate on the repairs. If no estimate is requested, the cost will be calculated
on completion.
- Our service engineers will give priority to instruments that are sent in accordance with the instructions given in these
notes.
5 - 3 WARRANTY
The warranty conditions are as stated in the general conditions of sale.
Description
Keyboard
Display
Access to inputs/outputs diagnostics display.
Status of the inputs and outputs. Lighting of the top and/or bottom
displays indicates acquisition of the relative inputs or outputs as
described above.
× 2 sec.
o
~ ~ _ _ ~ ~
I1 I2
U8 U7
U1 U2 U3 U4 U5 U6
