Leuze electronic GS 61 User manual

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone]
[email protected] • www.leuze.com
– 1 –
We reserve the right to make changes • GS_A40en.fm
zOptical forked photoelectric sensor with
3mm mouth width for exact detection of
labels on base material
zSimple sensitivity adjustment via multiturn
potentiometer or optionally via teach-in
function
zNEW – slim-line design (reduced fork
height) for installation directly on the
dispensing edge
zNEW – Removable operating head for easy
parameter adjustment without tools
zNEW – Smallest dimensions of all industrial
forked photoelectric sensors with an
excellent price / performance ratio
zNEW – Easy adjustment via lockable teach
button or teach input
3mm
10 - 30V
DC
10 kHz
Accessories:
(available separately)
zMounting device BT-GS6X
(Part No. 50110803)
zMounting device BT-GS6X.L
(Part No. 50112215)
UL approval applied for
UL
US
C
LISTED
IP 65
Dimensioned drawing
ALabel centre position
BControl element
CKnurled knob (removable)
DD1: horizontal connector, D2: vertical connector, D3: cable
EMounting device BT-GS6X; BT-GS6X.L
FOptical axis
GIndicator diodes
HTeach button
This LED has no function on the GS 61 with potentiometer
Electrical connection
/
/
/
Cable
Connector, 4-pin Connector, 3-pin
Connector, 5-pin
GS 61 Forked photoelectric sensor
GS 61… - 04
en 04-2009/12 50111253

GS 61… - 04 2009/12
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Specifications
Physical data
Mouth width 3mm
Mouth depth 40mm
Label width ≥2mm
Label gap ≥2mm
Light source 940nm (infrared light)
Switching frequency max. 10kHz
Conveyor speed with teach-in ≤20m/min (0.3m/s)
Typ. response time 50μs
Repeatability see diagrams
Delay before start-up ≤300ms acc. to IEC 60947-5-2
Electrical data
Operating voltage UB10 … 30VDC (incl. residual ripple)
Residual ripple ≤15% of UB
Open-circuit current ≤30mA
Switching output 1) …/6
switching signal in the label gap
1) The push-pull switching outputs must not be connected in parallel
1 push-pull switching output
Pin 4: PNP gap signal, NPN label signal
…/6D
signal on the label
1 push-pull switching output
Pin 4: PNP label signal, NPN gap signal
Signal voltage high/low ≥(UB-2V)/≤2V
Output current ≤100mA
Capacitive load ≤0.2μF2)
2) Max. permissible input capacitance of a consumer connected to the switching output that can be switched
without activation of short-circuit-current limiting.
Indicators
Green LED ready
Green LED, flashing teach-in activated
Yellow LED switching signal in the label gap
Red LED (GS 61/… .2… only) teach error / function error
Mechanical data
Housing base PC plastic, black RAL 9005
Upper part of housing PC plastic, red RAL 3000
Optics PC plastic
Weight 20g with connector
70g with cable
Connection type M8 connector, 4-pin, or
M8 connector, 3-pin, or
cable 2m (cross section 5 x 0.2mm²)
Tightening torque of fastening screws max. 3Nm
Environmental data
Ambient temp. (operation/storage) -20°C … +60°C/-30°C … +70°C
Protective circuit 3)
3) 1=polarity reversal protection, 2=short-circuit protection for all outputs
1, 2
VDE safety class III
Protection class IP 65 with mounted connector
Standards applied IEC 60947-5-2
Certifications UL 508 4)
4) For UL applications: for use in class 2 circuits according to NEC only
Order guide
The sensors listed here are preferred types; current information at www.leuze.com.
Designation Part No.
Teach-In GS61/6.2-S8 501 10108
GS61/6D.2-S8 501 10109
GS61/6.2-S8V 501 10763
GS61/6D.2-S8V 501 10764
GS61/6.2-S8.3 501 10765
GS61/6D.2-S8.3 501 10766
GS61/6.2 501 10767
GS61/6D.2 501 10768
Potentiometer GS61/6-S8 501 10110
GS61/6D-S8 501 10111
GS61/6-S8V 501 10112
GS61/6D-S8V 501 10113
GS61/6-S8.3 501 10761
GS61/6D-S8.3 501 10762
GS61/6 501 10769
GS61/6D 501 10770
Marking on the
sensor
zAlign the label tape
according to the sensor’s
marker "Label centre
position".
Diagrams
0
±5
±10
±15
±20
±25
±30
±35
±40
±45
±50
0 50 100 150 200
Conveyor speed [m/min]
Repeatability [μm]
Repeatability as a function
of the conveyor speed
Remarks
Approved purpose:
The forked photoelectric
sensor is an optoelectronic
sensor for contactless detec-
tion of non-transparent
labels on any given base
material. Depending on the
setting, a switching signal
occurs in the gap (gap signal)
between two successive
labels or on the label (label
signal).
GS 61

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] GS 61… - 04
[email protected] • www.leuze.com
– 3–
Type key
Sensor adjustment via potentiometer for GS 61
Notice: A removable operating head is plugged on the potentiometer in ex works. This can be used
to manually adjust the forked photoelectric sensor without the use of a tool. If this is not desired,
the operating head can be pulled off – a screwdriver is then necessary for making adjustments.
The following description applies to a forked photoelectric sensor with switching signal in the label
gap (GS 61/6…). For device versions with switching signal on the label (GS 61/6D…), the LED indi-
cators are inverted.
Preparation: Remove one or more labels from the base material and advance this blank area into
the sensor.
- If the yellow OUT LED does not switch on when the blank area is encountered, increase the
sensitivity by turning the potentiometer clockwise until the yellow OUT LED switches on.
- Starting from this setting, turn the potentiometer clockwise another approx. one half turn.
- Now advance the label tape so that a label is in the sensor.
- If set correctly, the yellow OUT LED must now switch off. Reduce the sensitivity by turning
counterclockwise if the LED remains on.
- Finished: if set correctly, the LED changes between gap and label.
GS 61/ 6D. 2-S8. 3V
Operating principle
GS Forked sensor, optical
Series
61 Small series with excellent price / performance ratio
Output function
/6 Push-pull output: PNP signal in the label gap, NPN signal on the label
/6D Push-pull output: PNP signal on the label, NPN signal in the label gap
Configuration
N/A Potentiometer adjustment
.2 Teach button on the device
.3 Teach button on the device and teach input
Electrical connection
N/A Device with cable, standard length 2000mm, cable outlet at 45°
-S8 M8 connector, 4-pin, horizontal plug outlet
-S8V M8 connector, 4-pin, vertical plug outlet
-S8.3 M8 connector, 3-pin, horizontal plug outlet
-S8V.3 M8 connector, 3-pin, vertical plug outlet
,200-S12 200mm cable with M12 connector, 5-pin, cable outlet at 45°
Top view of sensor with
operating head plugged.
Detach operating head;
use screwdriver if
necessary.
GS 61 Forked photoelectric sensor

GS 61… - 04 2009/12
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Short instructions for sensor adjustment via teach button for GS 61/… (with Teach)
≥2 s
≥7 s
Standard function
Normal operation after switch-on
ON LED - green = ready
OUT LED - yellow = switching output
WARN LED - red = warning
Teach-in (level 1)
Can be performed either with dynamic teaching
(described in the following) or with static teaching
Green ON LED and yellow OUT LED
flash simultaneously 3 x per sec.
Move several labels through the sensor
Briefly press the button again to end the teach event
Red WARN LED is off
if teach is error-free
Setting switching behaviour (Level 2)
Setting the switching output:
Signal in the gap/signal on the label
Green ON LED and yellow OUT LED
flash alternately 3 x per sec.
Release the button, green ON LED continues to flash
OUT LED - yellow: on=signal in the gap
off=signal on the label
Pressing the button briefly once more terminates the setting
with the currently indicated switching behaviour
= function lockable through constant application of UBon the teach input (for devices with teach input only)
GS 61

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] GS 61… - 04
[email protected] • www.leuze.com
– 5 –
Standard function for GS 61/… (with Teach)
During operation the sensor is always in this function. The sensor detects label gaps with high precision
and speed. This is indicated by the yellow LED and the switching output.
Indicators:
Operation
The teach button must be pressed for at least 2 seconds to operate the device. The button can be electri-
cally disabled to prevent accidental operation.
Sensor adjustment (Teach-In) via teach button for GS 61/… (with Teach)
Manual teach while label tape is passing through (dynamic)
Preparation: Insert label tape into the sensor.
zPress the teach button until green and yellow LEDs flash simultaneously.
zRelease teach button.
zDuring the teach event, the switching output is frozen in the most recently valid
state prior to teaching.
zAdvance the label tape at a maximum speed of 20m/min through the sensor so
that at least 3 … 7 labels pass through the sensor.
zPress the button briefly once more to terminate the teach event, the sensor goes
into standard mode.
3 … 7 label gaps should be advanced through the sensor in order to achieve stable
switching points.
If the teach event is faulty (e.g. transmission with insufficiently thick base material), the red LED illuminates, the green and yellow
LEDs flash rapidly. For error acknowledgment, briefly press the teach button and repeat the teach event. If the error cannot be
rectified, the label material cannot be detected with the GS 61/… .2…
Manual teach if the label tape cannot be advanced (static)
Preparation: Remove one or more labels from the base material and advance this blank
area into the sensor.
zPress the teach button until green and yellow LEDs flash simultaneously.
zRelease teach button.
zDuring the teach event, the switching output is frozen in the most recently valid
state prior to teaching.
zPress the button briefly once more to terminate the teach event, the sensor goes
into standard mode.
If the teach event is faulty (e.g. transmission with insufficiently thick base material), the red
LED illuminates, the green and yellow LEDs flash rapidly. For error acknowledgment,
briefly press the teach button and repeat the teach event. If the error cannot be rectified,
the label material cannot be detected with the GS 61/… .2…
Adjusting the switching behaviour of the switching output (signal in the label gap/on the label)
zPress the teach button until green and yellow LEDs flash alternately.
zRelease the teach button - the green LED continues to flash, the yellow LED
alternates slowly between ON and OFF.
zYellow LED ON = output switches in the label gap
Yellow LED OFF = output switches on the label.
zIf the button is pressed again while the LED is ON, the device switches in the
label gap. For control purposes, the switching behaviour is displayed as long as
the button is pressed. If the output is to switch on the label, the button must be
pressed while the LED is OFF.
zFinished.
ON LED - green Constantly ON when operating voltage is applied.
OUT LED - yellow Indicates the switching signal. LED is ON if the sensor detects label gaps.
The display is independent of the output setting.
WARN LED - red Is OFF if operation is error-free. If the "Control limit reached" message appears or if
the last teach event was faulty, the red LED illuminates.
≥2s
The green and the
yellow LEDs flash
simultaneously
approx. 3x per sec.
≥2s
The green and the
yellow LEDs flash
simultaneously
approx. 3x per sec.
>7s
The green and the
yellow LEDs flash
alternately
approx. 3x per sec.
GS 61 Forked photoelectric sensor

GS 61… - 04 2009/12
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Sensor adjustment (Teach-In) via teach input for GS 61/… (with Teach)
The following description applies to PNP switching logic!
The device setting is stored in a fail-safe way. A reconfiguration following voltage interruption or switch-off is thus not required.
Line teach while label tape is passing through
Preparation: Insert the label tape in the correct position in the sensor (align the middle of the tape to the sensor marking).
The red LED lights if a teach error occurs (e.g. the label cannot be reliably detected due to insufficient signals).
Regardless of the state, the green LED is on when the teach event is terminated, the yellow LED indicates the current switching
state.
Line teach if the label tape cannot be advanced (static teaching)
Preparation: Remove one or more labels from the base material and place this blank area in the sensor. The label tape must now
not be advanced further.
The process is identical to the line teach with moving label tape.
Adjusting the switching behavior of the switching output – light/dark switching
UTeach not connected Internal pull-down resistor pulls
the input down to zero
Teach button can be operated;
all functions adjustable
UTe a c h l o w ≤2V Low level Teach button can be operated;
all functions adjustable
UTe a c h h i g h ≥8V High level Teach button disabled;
button has no function
UTeach >2V…<8V Not permitted
Pulse only
necessary if a
low-level was
applied previ-
ously
Activation of the teach-in:
Action starts with the falling edge:
tTeach = 1100 … 1900ms
The rising edge starts the teach event. The green and yellow
LEDs flash alternately 3x per second as long as the signal is
high.
Advance the label tape so that several label gaps pass the
sensor, thereby allowing the teach values to be determined.
The teach event is concluded with the falling
edge.
50ms after the falling edge, the sensor returns to
normal operation.
The teach button is enabled again after max. 3s.
Pulse only
necessary if a
low-level was
applied previ-
ously
Activation of the teach switching
output:
Action starts with the falling edge:
tTeach = 2100 … 3000ms
Switching output switches in the label gap (20 … 900ms)
Switching output switches on the label (1100 … 2000ms)
The teach event is concluded with the falling
edge.
50ms after the falling edge, the sensor returns to
normal operation.
The teach button is enabled again after max. 3s.
t
20 ms … ∞1100 … 1900ms 50 ms … ∞50 ms
Button disabled
Button enabled
Button disabled
Button enabled after 3s
t
2100 … 3000ms 20 … 900ms 1100 … 2000ms20 ms … ∞
Button disabled
Button enabled
Button disabled
Button enabled after 3s
GS 61

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] GS 61… - 04
[email protected] • www.leuze.com
– 7 –
Locking the teach button via the teach input
GS 61/… (with Teach)
A static high signal on the teach input locks the teach button on the device
so that no manual operation is possible (e.g. protection against erroneous
operation or manipulation).
If the teach input is not connected or if there is a static low signal, the button
is enabled and can be operated freely.
Notices for integrating the sensor in a control concept
If the sensor is taught externally via a control, it may be necessary to receive acknowledgment from the sensor with respect to
its current teach state. Use the following chart for this purpose:
Operating mode Reaction from sensor
Dispensing mode Dynamic output signal: alternates between gap and label
Teach Static output signal: the state prior to teaching is frozen
Teach OK Output signal is dynamic again
Teach faulty Output signal is dynamic again - repeat teach event if necessary
GS 61 Forked photoelectric sensor

GS 61… - 04 2009/12
– 8 –
Mounting with mounting device BT-GS6X or BT-GS6X.L
The BT-GS6X or BT-GS6X.L are necessary if mounting compatibility with the GS 06 forked photo-
electric sensor is desired. When using, ensure secure seating (tighten set screw).
Maintenance information
The GS 61 forked photoelectric sensor is largely maintenance free. Depending on the environmental conditions and the used
materials, it may be necessary from time to time to clean the transparent parts in the lower and upper fork of the forked photo-
electric sensor. We recommend using a soft, moist cloth for this purpose. To protect the surface, cleaning agents containing
solvents should not be used for transparent parts.
Environmental durability
The used materials feature very good resistance to weak acids and bases as well as to UV exposure. Contact with organic sol-
vents is possible only to a limited extent and only for short times. Resistance to chemicals and oils must be determined on a case-
by-case basis.
GS 61