2014/11
Synchronous operation of multiple amplifiers / operation with activation input
In some cases, one may also wish to query multiple light axes
simultaneously
(synchronously). Two options are available for this
purpose:
Variant 1:
Wire and set according to section
Multiplex operation of multiple amplifiers
but assign all slaves an
identical address
between 1 and 5
. Result: master and slaves have a time offset of 1.5ms, slaves with the same address operate synchronously.
Variant 2:
Synchronous operation by means of an external activation signal at
multi funct
input (pin 2/ws-WH). Setting for subfunction:
Function
:
Line teach (remote teach)
Setting for subfunction:
Signal level on
multi funct
teach input:
The following description applies to PNP switching logic!
With the NPN models, the signal levels are inverted!
Timing for line teach
The line teach that is executed is determined in the
Select teach mode
subfunction
tch
SEL
.
Depending on the setting, this may be a static 1-point teach, static 2-point teach or dynamic teach.
InP
SEL
multi funct
input
SYnc
PLc
activation
input
InP
SEL
multi funct
input
tch
InP
Teach
input
U
Teach
Signal level
Function
≤
2V
LOW
The
operating mode selector switch
is
unlocked
- function acc.
to current switch position.
≥
(U
B
-2V)
HIGH
The
operating mode selector switch
is
locked
- switch position
has no effect on the sensor.
Activation input
multi funct
(pin 2/ws-WH)
Transmitter
OFF
Transmitter
OFF
Transmitter
ON
The transmitter is deactivated
with a high signal
.
If not actuated
or
in the case of a low signal
,
the transmitter is
activated
.
LOW
t
HIGH
≥
20ms
20 … 80ms
900 …
∞
ms
> 900ms
> 500ms
Before teaching:
LOW level =
Selector switch
Operating mode
un-
locked
HIGH level =
Selector switch
Operating mode
locked
S
ignal c
h
ange i
s o
n
ly nece
ssar
y i
f
a HIGH signal
is a
pplie
d befor
e the tea
ch even
t.
Action starts with the
rising edge:
t
Teach
= 20 … 80ms
Selector switch
Oper-
ating mode
locked
The teach event starts with the falling
edge.
1.
Static 1-point teach
:
The current signal value is accepted as
the teach value with the falling edge.
2.
Static 2-point teach
:
The current signal value is accepted as
teach value 1
with the falling edge.
3.
Dynamic teach
:
The sensor begins scanning the signal
values with the falling edge.
Notice
: The sensor has no timeout in teach
mode until the next rising edge.
The teach event is concluded with the ris-
ing edge:
1.
Static 1-point teach
:
No further action.
2.
Static 2-point teach
:
The current signal value is accepted
as
teach value 2
with the rising edge.
3.
Dynamic teach
:
Scanning of the signal values is con-
cluded with the rising edge.
900ms after the rising edge, the teach
event is concluded and the sensor
resumes normal operation.
If it should again be possible to operate
the
operating mode
selector switch, a
LOW signal must be applied. The switch
can again be operated 500ms after the
falling edge.
Remarks
:
• During the line teach, the
content of the two displays cor-
responds to the description for
manual teach.
• The line teach starts with the
first rising edge on the teach in-
put independent of the position
of the
operating mode
selector
switch.
Selector switch
Operating mode
locked
Teach time
Activation
teach event
t = 20 … 80ms
LV463
