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Les langues disponibles
Mounting and
operating instructions
No. Action
Picture
follows
23 Locking keys:
Q
Q
1
OK
I
C
FA
push
22x
24 „Measured value hold" function:
Q
Q
1
I
OK
C
FA
push
23x
INFORMATION
Function 25 and function 26 only for FT 80 RLA version S1.
Simultaneous connection to a PLC control or a PC via the RS485 interface is not possible
with differential measurement.
25 Switch „Differential measurement" (master) mode on / off:
Q
Q
1
I
OK
C
FA
push
24x
FT 80 RLA Disctance sensor - GB - 068-13715 - 01.09.2014-05
Action
Reaction / Status indicator „ZA" (red)
Switch with
ON, if locking keys active
2
OFF, if locking keys inactive
SET
If function is activated, locking becomes active once the setting mode has been quit. It
is possible to unlock keys with the functions „factory setting" during power ON or „unlock
keys" during power ON (both described in chapter 7.1, paragraph „Keys and their func-
tions").
Switch with
ON, if measured value hold active
2
OFF, if measurement hold inactive
SET
If this function is activated, the last valid measured value is saved when no object is in
the measuring range (OK LED = OFF), and is transmitted at the analogue output. The
switching output also maintains its status (if set).
The current value is only displayed again when an object is within the measuring range
(OK LED = ON).
Example of use: Maintaining the position of a machining tool during the change-over of a
work piece.
Illustration: Behaviour of analogue output with and without measured value hold.
Start of measuring range
End of measuring range
Good Target Q
Switch with
ON, differential measurement mode
2
master active
SET
OFF, differential measurement mode
master inactive
For description of function see chapter 7.2.3
20 mA
4 mA
20 mA
4 mA
ON
2
OFF
Factory setting
Inactive
(„ZA" = OFF)
Inactive
(„ZA" = OFF)
With measured value hold
Without measured value hold
Illustr. 19
15500154
Inactive
(„ZA" = OFF)
57
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