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Mounting and
operating instructions
1. Mounting: Position reference object (target value) in measuring range and mount both FT 50 RLA-...(S1 types) in
a way that the distance to the object is always within the operating range of the sensors (illustr. 20 and 22).
2. Interlink sensors according to wiring diagram and connect them electrically (illustr. 21).
Master
2
BN
1
WH
5
GY
6
PK
8
RT
4
YE
3
GN
7
BU
No. Action Picture
follows
3
Set-up of the slave:
Q
Q
1
I
OK
C
FA
push
25
Q
Q
1
or
OK
I
26x
C
FA
4
Set-up of the master:
Q
Q
1
OK
I
C
FA
push
24x
INFORMATION
After completion of the master/slave configuration, the analogue output of the master should dis-
play 12 mA, corresponding to the measured reference/target value. Now all functions configured
at the master refer to the difference to the reference value.
For measurement, position objects within the measuring range. Then the measured value (ana-
logue value at master) supplies the difference to the reference value. The analogue output of the
slave indicates the distance between slave and object.
FT 50 RLA Disctance sensor - GB - 068-13671 - 19.05.2016-12
+U
RS485 Data+ (Y/A)
B
RS485 Data- (Z/B)
Q
2
PNP
Q
/IN
1
PNP
-U
B
Action
First of all configure one of the sensors as slave by
2
activating the set-up mode and selecting function
n° 26 (differential thickness measurement) or
function n° 27 (parallel differential measurement)
2
(see chapter 7.2.2 „Possible configurations and
operating modes", as well as Examples of use).
Configure second FT 50 RLA-S1 as master by
2
activating the set-up mode and selecting function
n° 25.
Attention: Sensor can only be configured as master
when the object is within the operating range of
both sensors (see illustr. 20 and 22).
Slave
BN
+U
B
WH
GY
PK
RT
YE
Q
2
GN
PNP
Q
/IN
1
BU
PNP
-U
B
Reaction
LED „OK" (Good Target) of both
sensors must light up.
The analogue output of the master
should now indicate 12 mA, corres-
ponding to the measured reference/
target value. Now all functions
configured at the master refer to the
difference to the reference value.
2
1
5
6
8
4
3
Illustr. 21
7
15400172
59
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