IFM O6H7 Series User manual

Operating instructions
Diffuse reflection sensor with
background suppression
O6H7xx
706457 / 00 11 / 2017
UK

2
Contents
1 Preliminary note���������������������������������������������������������������������������������������������������3
1�1 Symbols used ������������������������������������������������������������������������������������������������3
2 Safety instructions �����������������������������������������������������������������������������������������������3
3 Functions and features ����������������������������������������������������������������������������������������3
4 Installation������������������������������������������������������������������������������������������������������������4
5 Operating and display elements ��������������������������������������������������������������������������5
5�1 Stability indication������������������������������������������������������������������������������������������5
6 Electrical connection��������������������������������������������������������������������������������������������6
6�1 PNP ���������������������������������������������������������������������������������������������������������������6
6�2 NPN ���������������������������������������������������������������������������������������������������������������6
7 Settings����������������������������������������������������������������������������������������������������������������7
7�1 Settings on the sensor�����������������������������������������������������������������������������������7
7�1�1 The sensor is to switch when the object is detected ����������������������������7
7�1�2 The sensor is not to switch when the object is detected ����������������������7
7�1�3 Set maximum range �����������������������������������������������������������������������������7
7�1�4 Programming unsuccessful ������������������������������������������������������������������8
7�1�5 Electronic lock ��������������������������������������������������������������������������������������8
7�2 Setting via IO-Link �����������������������������������������������������������������������������������������9
7�2�1 Adjustable parameters��������������������������������������������������������������������������9
7�2�2 Setting the range by means of background and object ���������������������� 11
7�2�3 Setting the range by means of background����������������������������������������12
7�2�4 Setting the maximum range����������������������������������������������������������������12
8 Operation�����������������������������������������������������������������������������������������������������������13
9 Maintenance, repair, disposal����������������������������������������������������������������������������13

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1 Preliminary note
1.1 Symbols used
►Instruction
> Reaction, result
[…] Designation of pushbuttons, buttons or indications
→Cross-reference
Information
Supplementary note�
Important note
Non-compliance can result in malfunctions or interference�
2 Safety instructions
According to the cULus approval
Caution - Use of controls or adjustments or procedures other than those
specified herein may result in hazardous radiation exposure�
Visible laser light; CLASS 1 LASER PRODUCT�
IEC 60825-1 : 2007 and IEC 60825-1 : 2014
Complies with 21 CFR 1040�10 except for deviations pursuant to Laser
Notice No� 50, dated June 2007�
Position of the product label Additional label
3 Functions and features
The diffuse reflection sensor detects objects and materials without contact and
indicates their presence by a switching signal�

4
4 Installation
►Align the diffuse reflection sensor to the object to be detected (Fig� 1)�
> For exact alignment, use the accessories for fine adjustment�
►Secure it to a bracket�
Fig� 1
Fig� 2 Note
The objects to be detected are to
move transversely to the lens of the
sensor�
►In case of other directions of
movement it should be tested
before whether safe switching is
guaranteed�
Fig� 3 Shiny object
►In case of shiny object surfaces
and less shiny background surfac-
es the sensor should be mounted
at an angle of appox� 5 - 10°�

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Fig� 4 Shiny background
►In case of shiny background
surfaces and less shiny object
surfaces the sensor should be
mounted vertically to the back-
ground surface�
5 Operating and display elements
1: LED green - operation,
stability indication
2: OUT OFF button
3: LED yellow - switching output active
4: OUT ON button
5.1 Stability indication
The green LED is lit when the supply voltage is applied and the sensor signal is
stable�
stable signal switch point stable signal
Light-on mode
LED green on off off on
LED yellow on on off off
Dark-on mode
LED green on off off on
LED yellow off off on on

6
6 Electrical connection
The unit must be connected by a qualified electrician�
►The national and international regulations for the installation of electri-
cal equipment must be adhered to�
►Ensure voltage supply to EN 50178�
►Disconnect power�
►Connect the unit as follows:
6.1 PNP
Connector M12 pigtail Cable
BK: black
BN: brown
BU: blue
Colours to DIN EN 60947-5-2
Connector M8 3-pin Connector M8 4-pin
2
1
4
3
6.2 NPN
Connector M12 pigtail Cable
L+
L
1
4
3
BK: black
BN: brown
BU: blue
L
BN
BK
BU
L+
Colours to DIN EN 60947-5-2
Connector M8 3-pin Connector M8 4-pin
L+
L
1
4
3
2
1
4
3
L+
L
1
4
3

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7 Settings
7.1 Settings on the sensor
7.1.1 The sensor is to switch when the object is detected
Fig� 1 ►Position the object�
►Press [OUT ON] for > 2 s�
> The yellow LED flashes�
> The setting of the range with object
is made by releasing [OUT ON]�
Fig� 2 ►Remove the object
►Press [OUT OFF]�
> The setting of the range without
object is made by releasing [OUT
OFF]�
> The yellow LED goes out� Pro-
gramming is finished�
7.1.2 The sensor is not to switch when the object is detected
►Position the object (see figure 1) and press [OUT OFF] for > 2 s�
►Remove the object (see figure 2) and press [OUT ON]�
The setting can also be carried out first without object and then with object�
7.1.3 Set maximum range
►Align the sensor so that no light is reflected�
1. The sensor is to switch when the object is detected
►Press [OUT ON] for > 2 s, then [OUT OFF]�
2. The sensor is not to switch when the object is detected
►Press [OUT OFF] for > 2 s, then [OUT ON]�

8
7.1.4 Programming unsuccessful
> The LED flashes quickly, 8 Hz�
• Measured value difference too small
• Max� programming time (15 min�) exceeded�
7.1.5 Electronic lock
Lock or unlock the buttons
►Press [OUT ON] and [OUT OFF] simultaneously for 10 s�
> Acknowledgement is indicated by a brief change of the LED switching status�

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7.2 Setting via IO-Link
This unit has an IO-Link communication interface which enables direct access
to process and diagnostic data� In addition it is possible to set the parameters of
the unit during operation� Operation of the unit via IO-Link interface requires an
IO-Link master�
With a PC, suitable IO-Link software and an IO-Link adapter cable communication
is possible when the system is not in operation�
The IODDs necessary for the configuration of the unit, detailed information about
process data structure, diagnostic information, parameter addresses and the
necessary information about the required IO-Link hardware and software can be
found at www�ifm�com�
7.2.1 Adjustable parameters
Among others, the following parameters can be set via IO-Link�
A table of all adjustable parameters can be found at www�ifm�com�
Parameter name Values Description Default
setting
SSC1 Param�
SP1
17 mm ���
100 mm
Setting of the switch point with a step in-
crement of 1 mm� After a teach the value
resulting from this teach is displayed�
Please refer to
the datasheet
value "range"
Teach SP1 TP1 Teach sequence to set switch point
SP1� Part one (TP1): teach on object�
Both parts of the teach sequence, TP1
and TP2, have to be executed, in order
to place switch point SP1 between the
object and the background
(TP = teach point)�
N� A�
Teach SP1 TP2 Teach sequence to set switch point SP1�
Part two (TP2): teach on background�
Both parts of the teach sequence, TP1
and TP2, have to be executed
(TP = teach point)�
N� A�
Teach Custom
SP1 without
target
Teach on background only, the switch
point will be defined slightly in front of
the background� Choose this setting as
an alternative to Teach SP1 if no target
is available�
N� A�

10
Parameter name Values Description Default
setting
TI Result�State - Idle
- SP1
Success
- Wait for
command
- Busy
- Error
- Custom
Teach-in state, after a successful teach
the value 'SP1 success' will be indicated�
N� A�
Sequence
modulation
- OFF
- AUTo
OFF: Anti-Crosstalk function off
AUTo: Anti-Crosstalk function on
OFF
SSC1 Config�
Logic
High active
Low active
Setpoint logic, state for target detected
(High: light-on mode / NO,
Low: dark-on mode / NC)
Please refer to
the datasheet
value "output
function"
SSC1 Switch-On
delay
0 ��� 2 Switch-On Delay; increment 0�1 s 0
SSC1 Switch-Off
delay
0 ��� 2 Switch-Off Delay; increment 0�1 s 0
Transmitter
configuration
- On
- Off
Configuration transmitter light On / Off On
Number of power
cycles
0 ��� 65535 Number of power cycles N� A�
Operating hours 0 ��� 65535 Operating hours N� A�

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7.2.2 Setting the range by means of background and object
►Start the LR DEVICE software�
►Align the diffuse reflection sensor to the object (Fig� 1)�
►Press button [Teach SP1 TP1] in the LR DEVICE software�
►Align the diffuse reflection sensor to the background (Fig� 2)�
►Press button [Teach SP1 TP2] in the LR DEVICE software�
> The switch point SP1 is between object and background (Fig� 3)�
Fig� 1: Fig� 2:
TP1 TP2
TP1: Teach Point 1 TP2: Teach Point 2
Fig� 3
TP2TP1 SP1
Zone "object recognised"
Either the object can be set first and then the background, or the other
way around�

12
7.2.3 Setting the range by means of background
If the object is not available, the range can be set using only the background�
The switching characteristics of the diffuse reflection sensor are the most
reliable if the range is set using the background and the object (→ 7.2.2)�
►Start the LR DEVICE software�
►Align the diffuse reflection sensor to the background (Fig� 4)�
►Press button [Teach Custom - SP1 without target] in the LR DEVICE software�
> The switch point SP1 is just in front of the background (Fig� 5)�
Fig� 4: Fig� 5:
SP1
Zone "object recognised"
7.2.4 Setting the maximum range
►Start the LR DEVICE software�
►Align the diffuse reflection sensor to an empty area without object or back-
ground�
> The diffuse reflection sensor must not receive any light from the object or the
background�
►Press button [Teach Custom - SP1 without target] in the LR DEVICE software�

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8 Operation
►Check whether the unit operates correctly�
> The green LED is lit when the sensor is ready for operation�
> Dark-on mode: the output is switched / the yellow LED is lit when no object is
detected�
> Light-on mode: the output is switched / the yellow LED is lit when an object is
detected�
9 Maintenance, repair, disposal
►Keep the lens of the sensor free from soiling�
►For cleaning do not use any solvents or cleaning agents which could damage
the plastic parts�
►After use dispose of the unit in an environmentally friendly way in accordance
with the applicable national regulations�
Faulty sensors must only be repaired by the manufacturer�
Technical data and further information at unter www�ifm�com
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