IFM UGR502 User manual

Operating instructions
Ultrasonic retro-reflective sensor without IO-Link
UGR502
UGR503
11487704 / 00 07 / 2018
UKUK

2
1 Preliminary note
1.1 Explanation of symbols
►Instructions
> Reaction, result
→Cross-reference
Important note
Non-compliance may result in malfunction or interference.
Information
Supplementary note.
2 Safety instructions
• Read this document before setting up the product and keep it during the entire
service life.
• The product must be suitable for the corresponding applications and
environmental conditions without any restrictions.
• Only use the product for its intended purpose (→ Functions and features).
• If the operating instructions or the technical data are not adhered to, personal
injury and/or damage to property may occur.
• The manufacturer assumes no liability or warranty for any consequences
caused by tampering with the product or incorrect use by the operator.
• Installation, electrical connection, set-up, operation and maintenance of the
product must be carried out by qualified personnel authorised by the machine
operator.
• Protect units and cables against damage.
3 Functions and features
Ultrasonic sensor for the detection of objects.

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4 Installation
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4
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5
►Secure the unit to a bracket
1/2: Status LED (yellow), setting aid
and output indication
3: Echo LED (green), is on when
reector is detected
4: Teach button
5: Reector
The functional specifications refer to a mild steel reflector defined by ifm at
maximum range and with an edge length of 300 mm. The minimum size of
the reflector depends on the size of the object.
With ultrasonic retro-reflective sensors adhere to the minimum distances to
the reflector (→ Technical data sheet).
For units with metal housing (according to UL 508):
►Observe a minimum distance of 12.7 mm between the sensor and non-
insulated live parts.
For further information please refer to www.ifm.com
→ General information about installation and operation.
5 Electrical connection
►Disconnect power.
►Connect the unit:
BK: Black
BN: Brown
BU: Blue
BN1
BK4
BU3
L+
L
OUT
OUT: Switching output
Colours to DIN EN 60947-5-2

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6 Settings
The unit and the parameters are set via the teach button (→ 6.1).
6.1 Teach button
6.1.1 Start programming mode.
►Press the teach button for 2 s...6 s.
> Yellow status LEDs 1/2 flash (1 Hz), the unit is in the programming mode.
If programming has not been completed successfully, the unit returns to the
previous setting.
6.1.2 Adjust the unit to the reflector
The sensor is operational once the reflector has been aligned to it.
►Start programming mode (→ 6.1.1).
► Align the reflector to the unit (fig. 1).
►Press the teach button for 1 s.
> Yellow status LEDs 1/2 flash (2.5 Hz), adjustment is completed.
6.1.3 Invert output response
►Press the teach button for > 6 s.
> Yellow status LEDs 1/2 flash (> 10 Hz).
> Yellow status LEDs 1/2 flash briefly (> 4 Hz).
►Output function is inverted.
6.1.4 Restore factory setting
►Align the unit so that no echo is received.
> Green echo LED off.
►Start programming mode (→ 6.1.1).
►Press the teach button for 1 s.
> Yellow status LEDs 1/2 flash briefly (4 Hz), factory setting is restored.

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When the barrier is interrupted by an object, the following output signals are
provided:
Fig. 1: Switching signal when the barrier is
interrupted by an object
RE
1
1
R
1
0
0
2
3
4
R: Reector position
E: Detection zone
1: Output signal
2: Inverted output signal
3: Distance object
4: Factory setting (max. range according
to the data sheet)
7 Operation
Check whether the unit operates correctly. Bring about a sensor response by
taking suitable measures.
Display by LEDs (independent of the programmed output configuration):
Status LED 1/2 yellow ON Switching output is active.
Echo LED green ON Echo is received.
Echo LED green flashing Short circuit at the output.
Reflector is outside the detection zone.
> Echo LED green OFF.
> With NO function = switching output active. With NC function = switching
output inactive.
Technical data and further information at www.ifm.com.