Starting up the device - Basic configuration
Leuze electronic
CML 730-PS
61
8.2.2 Teaching via a control signal from the control
Teach input (Teach In)
This input can be used to perform a teach following initial commissioning, change of the alignment or
during operation. During this procedure, the transmitter and receiver adjust themselves to the maximum
function reserve according to the distance.
To trigger a teach, a pulse must be applied on connection X1 on the receiver IO1 = pin 2 (factory setting)
for longer than 20 ms … but less than 80 ms.
Depending on the configuration (PNP or NPN), this corresponds to the following signal response:
1
Teach is performed here
2
Function buttons on the receiver locked
Figure 8.5: Control signals for line teach with PNP configuration
1
Teach is performed here
2
Function buttons on the receiver locked
Figure 8.6: Control signals for line teach with NPN configuration
Performing a teach via the line input
Prerequisites:
• The light curtain must be correctly aligned (see chapter 8.1).
• A connection must be established between PLC and the line input (teach-in).
Send a teach signal to the teach input via the control (see chapter "Teach input (Teach In)" for the data)
to trigger a teach.
The display on the receiver control panel shows
Following a successful teach, the display switches back to the bar graph (alignment mode).
If teach is successful, both bars display the maximum value.
Signal level for line teach with PNP configuration:
Low: ≤ 2 V; High: ≥ (U
B
-2 V
With the PNP configuration, the signal levels are inverted.
Wait...
1
2
2
High
Low
1
2
2
High
Low