Hello, I am a newbie.
congratulations for this very interesting forum!
My question:
to perform diagnostics of a cylinder controlled by single solenoid valve I can use this method:
how to run diagnostics of a cylinder driven by a double solenoid valve?
What I mean is that once the cylinder has finished the forward run the solenoid is de-energized.
Now how do I know if the sensor is burnt out, or if the operator manually operates the valve and turn back the cylinder?
I had thought of using a latch bit (retentive) in this way:
is it correct this method, or is there a more clever way?
Thanks to all
Bartech
congratulations for this very interesting forum!
My question:
to perform diagnostics of a cylinder controlled by single solenoid valve I can use this method:
|
|
| valve front sensor +----------------+
|----] [---------]/[--------+------| Timer |
| | +----------------+
| |
| |
| |
| |
| valve rear sensor |
|----]/[---------]/[--------+
|
|
|
|
|
| Timer Fault
|----] [--------------------( SET )
|
|
how to run diagnostics of a cylinder driven by a double solenoid valve?
What I mean is that once the cylinder has finished the forward run the solenoid is de-energized.
Now how do I know if the sensor is burnt out, or if the operator manually operates the valve and turn back the cylinder?
I had thought of using a latch bit (retentive) in this way:
| valve forward +----------------+
|-------] [------------------------| Keep |
| | OP_LATCH |
| +------| |
| | +----------------+
| |
| |
| |
| valve backward |
|-------] [-----------------+
|
|
|
|
| OP_LATCH front sensor +----------------+
|-------] [-----------]/[-------+----| Timer |
| | +----------------+
| |
| |
| |
| |
| OP_LATCH rear sensor |
|-------]/[-----------]/[-------+
|
|
|
|
|
| Timer Fault
|----] [--------------------( SET )
|
|
|
|
|
is it correct this method, or is there a more clever way?
Thanks to all
Bartech