
FT 50 RLA Distance sensor - GB - 068-13799 - 27.07.2010-01
Mounting and
operating instructions
20
No. LED pattern Action
Factory setting
Description
2
Q
A
V
N
C
QA
OK
FS
Scaling of the analogue output QA
Position the object at the desired 0 % point (4 mA). The „OK“ LED must light.
Push
T
until the „QA“ LED lights.
Push
S
once. If the object is detectable and in the operating range, the dis-
tance is saved as the 0 % point (4 mA). The „ZA“ LED (red) flashes with 1 Hz.
If no 100 % point is to be set, exit the Set menu (
T
+
S
) or go to the next
setting with
T
.
If a 100 % point is to be set, place the object at the desired distance.
The „OK“ LED must light.
Push
S
once. If the object is detectable and in the operating range, the
distance is saved as the 100 % point (20 mA). The „ZA“ LED lights for confir
-
mation for as long as
S
is pushed.
Exit the Set menu (
T
+
S
) or
go to the next setting with
T
.
Maximum
operating range
Information
If the distance between the 0 % point is less than 5 % of the operating range, the analogue output is
automatically scaled to 5 % of the max. operating range. The middle of the range is placed between the
set 0 % and 100 % points.
3
Q
A
V
N
C
QA
OK
FS
Switch operating mode (speed mode / averaging mode)
Push
T
until the „Av“ LED lights up.
The operating mode (speed / averaging) is changed by pushing
S
repeatedly.
Look at the „ZA“ LED (red). „ZA“ lights
= averaging mode is active.
„ZA“ does not light = speed mode is active.
Exit the Set menu (
T
+
S
) or
go to the next setting with
T
.
speed mode
Information
Averaging Mode:
for detecting rough surfaces. The arithmetic (floating) average of 100 measured values
is taken. This smoothes the measuring result.
Speed Mode: for shortest response time and max. switching frequency without averaging.
4
Q
A
V
N
C
QA
OK
FS
N.O. / N.C. switching
Push
T
until the „Nc“ LED lights.
The switching function (N.O. / N.C) is changed by pushing
S
repeatedly.
Look at the „ZA“ LED (red): „ZA“ lights
= switching type N.C. is active.
„ZA“ does not light
= switching type N.O. is active.
Exit the Set menu (
T
+
S
) or
go to the next setting with
T
.
N.O.
5
Q
A
V
N
C
QA
OK
FS
Activate Factory Setting
Push
T
until the „FS“ LED lights.
Push
S
once.
The sensor is reset to the factory state.
The „ZA“ LED lights for confirmation for as long as
S
is pushed.
Exit the Set mode (
T
+
S
) or
go to the next setting with
T
.
7.4.3
Deactivating the Set Mode (Exit)
First push
T
, then
S
. All settings are then saved. The sensor is in the Run mode after releasing the buttons. The
operating indicator „BA“ (green) lights steadily.