Riftek RF659 Series User manual

Certified according to ISO 9001:2015
EDGE SENSORS
User's manual
RF659 Series

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Edge Sensors. RF659 Series
RF659 [Revision 2.0.0] 26.06.2018
Contents
.............................................................................................................................................31. Safety precautions
.............................................................................................................................................32. CE сompliance
.............................................................................................................................................33. Laser safety
.............................................................................................................................................34. General information
.............................................................................................................................................35. Structure and operating principle
.............................................................................................................................................46. Basic technical data
........................................................................................................................................... 46.1. Measuring head
........................................................................................................................................... 56.2. Controller
.............................................................................................................................................67. Connection
.............................................................................................................................................78. Operating procedure
.............................................................................................................................................79. Working with parameters
........................................................................................................................................... 79.1. Settings menu
........................................................................................................................................... 79.2. Zero point
........................................................................................................................................... 89.3. 'Technological elements ignoring' mode
................................................................................................................. 89.3.1. Detection threshold
................................................................................................................. 89.3.2. Analog output retention time
................................................................................................................. 89.3.3. Lock range of the mode
................................................................................................................. 89.3.4. Enabling/disabling the mode
........................................................................................................................................... 99.4. 'Debris' parameters
................................................................................................................. 99.4.1. Contamination level threshold
................................................................................................................. 99.4.2. 100% level of signal
........................................................................................................................................... 109.5. 'Count direction' parameter
........................................................................................................................................... 109.6. 'Analog output polarity and indication direction' parameter
........................................................................................................................................... 119.7. Logic output thresholds
................................................................................................................. 119.7.1. Lower threshold
................................................................................................................. 119.7.2. Upper threshold
........................................................................................................................................... 119.8. Resetting parameters
.............................................................................................................................................1110. Analog outputs
.............................................................................................................................................1211. Controller settings for working with transparent objects
........................................................................................................................................... 1411.1. Setting algorithm
.............................................................................................................................................1912. LEDs and alarm outputs
........................................................................................................................................... 1912.1. Output is off, LED is not lit
........................................................................................................................................... 2012.2. Output is on, LED is lit
.............................................................................................................................................2013. Warranty policy
.............................................................................................................................................2014. Revisions
.............................................................................................................................................2115. Distributors

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1. Safety precautions
· Use supply voltage and interfaces indicated in the sensor specifications.
· In connection/disconnection of cables, the micrometer power must be switched
off.
· Do not use micrometers in locations close to powerful light sources.
· Sensor windows should be kept clean. Do not clean the glass with abrasive and
aggressive cleaning agents.
· If the windows are accidentally touched with fingers, they should be wiped
immediately.
2. CE сompliance
The sensors have been developed for use in industry and meet the requirements of
the following Directives:
· EU directive 2014/30/EU. Electromagnetic compatibility (EMC).
· EU directive 2011/65/EU, “RoHS“ category 9.
3. Laser safety
Continuous LED light source is installed in the sensor. Sensors belong to Class 1.
4. General information
The sensors are intended for non-contact measuring and monitoring the position of
the edge (edges) of various objects, such as tapes, plates, substrates, etc.
5. Structure and operating principle
The sensor operation is based on the so-called ‘shadow’ principle, Fig.1. The
sensor consists of controller and measuring head which consists of two modules –
transmitter and receiver.
Transmitter module consists of LED (1) and lens (2). Receiver module includes a
photo-detector array (3).
Radiation of the LED (1) is collimated by the lens (2) and directed to the photo-
detector array (3). With an object placed in the collimated beam region, shadow image
formed is scanned with the photo-detector array (3). Controller calculates the position of the
edge of the object.
Figure 1

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6. Basic technical data
6.1. Measuring head
Type
RF659
Distance between transmitter and receiver, mm
30
Measurement range, mm
7
Accuracy, um
±20
Repeatability, um
1
Temperature dependence
0.1% range/С°
Light source
LED
Power supply, V
5
Power consumption, W (transmitter/receiver)
0.5
Environment
resistance
Enclosure rating
IP40
Vibration
20g/10…1000Hz, 6 hours, for each of XYZ
axes
Shock
30 g / 6 ms
Operation temperature, °С
-10…+60
Relative humidity, %
5-95
Housing/window material
aluminum / glass
Weight with cable (cable length of 300 mm), gram
30 – transmitter, 30 – receiver
Overall and mounting dimensions
see the figure

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6.2. Controller
Type
RF301D
Number of connected heads ("transmitter" - "receiver" pairs)
2
Cycle of result updating, Hz
1500
Digital indication
two five-digit displays
Resolution of digital indication, µm
1, 10
Digital output
RS485*
Analog outputs
two isolated channels, ±5V (±10),
load >10 kOhm
Resolution of analog outputs, µm
2
Logic outputs
eight isolated channels of npn - open collector
Power supply, V
24
Power consumption, W
1.5
Housing material
aluminum
Weight, g
200
Overall and mounting dimensions
see the figure
* - RS485 is used to diagnose and configure the controller and measuring heads, as well as to update the
software.

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7. Connection
The back side of the controller contains connectors for measuring heads, 8-pin
connector for power, analog outputs and RS485 interface, and 9-pin connector for logical
outputs (Fig. 2).
Spring connector 1, numbering 'left to right'
Designation
1
+24V
2
GND
3
Isolated Analog Output 1
4
Isolated Analog Output 2
5
AGND
6
DATA+ (RS485)
7
DATA- (RS485)
8
GND
Spring connector 2, numbering 'left to right'
Designation
1
Isolated Alarm1 Channel 1
2
Isolated Alarm2 Channel 1
3
Isolated Threshold Low1
4
Isolated Threshold High1
5
Isolated Alarm1 Channel 2
6
Isolated Alarm2 Channel 2
7
Isolated Threshold Low2
8
Isolated Threshold High2
9
Isolated GND
Figure 2

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8. Operating procedure
Connect the measuring heads to the controller. Apply supply voltage to the
controller. Values measured by channel 1 and channel 2 respectively are shown on digital
indicators. LED indicators show the position of the object in the measurement area, i.e. lit
areas and areas shaded by the object.
9. Working with parameters
Parameter control buttons and LED indicators are placed on the front panel of the
controller, Fig. 3.
Figure 3
Parametrization is performed for each channel separately. Press the Channel
button to select the channel. Selected channel is indicated by the corresponding LED.
9.1. Settings menu
To enter the settings menu, you need to hold the Menu button pressed for 3
seconds.
9.2. Zero point
This parameter sets the measurement starting point within the measuring range.
After Zero Point is set, the measurement result (in the digital display and analog output) is
displayed as deviation from a zero point.
Press the Channel button and select the channel. The current channel number is
highlighted by LED. Install the controlled object to the required position within the range.
Enter the settings menu, select "SEt.0" using the arrows, and press the Enter
button. Display 2 will show the current value. Select the current value of the parameter by
pressing the Up arrow, or select '3.50 mm' (the middle of the range) by pressing the Down
arrow. Then press Enter to confirm selection.
To exit the settings menu, press the Esc button. You will be prompted to exit without
saving to FLASH by the "CAnCEL" message. To save parameters to FLASH, select
"SAUE" and press Enter.

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9.3. 'Technological elements ignoring' mode
Under technological elements to be understood objects in the test material,
projecting with respect to its edge (pins, fasteners and so on), or slots, technological gaps
and the like in the edge. Technological elements affect the correct measurement of the
material edge position. The device has the ability to ignore the technological objects in the
measurement process to ensure stable control of the main edge position.
Press the Channel button and select the channel. The current channel number is
highlighted by LED.
Enter the menu, select "tEI.x" using the arrows, and press Enter to enter the
submenu.
9.3.1. Detection threshold
Detection threshold sets a value, going beyond that is considered as the time of
technological element detection. The parameter sets positive and negative thresholds
simultaneously, i.e. if parameter is equal to 1.000 mm, all the values above 1 mm and below
-1 mm trigger the 'Technological elements ignoring' mode.
Indication of parameter number – the leftmost LED lights up on the LED line.
Display 1 shows the "thrES" message (Detection threshold), Display 2 shows the
parameter value.
To edit the parameter, use the Up and Down buttons. To increase the parameter,
press Up. To decrease the parameter, press Down. In order to go to the next parameter,
press Enter.
9.3.2. Analog output retention time
Analog output status remains unchanged since the detection the of technological
object and within the time specified by this parameter. The value of analog output
corresponds to the last value before the operation mode begins.
Indication of parameter number – two leftmost LED light up on the LED line. Display
1 shows the "AOrt" message (Analog output retention time), Display 2 shows the
parameter value.
To edit the parameter, use the Up and Down buttons. To increase the parameter,
press Up. To decrease the parameter, press Down. In order to go to the next parameter,
press Enter.
9.3.3. Lock range of the mode
At the end of analog output holding time, during the lock mode interval, the event of
the going beyond threshold is not processed. Analog output level corresponds to the current
measured value. This parameter is intended to allow the edge position adjustment of the
material in the event of going beyond the threshold during time when the analog output was
held. Indication of parameter number – three leftmost LED light up on the LED line.
Display 1 shows the "LrAng" message (Lock range of the mode), Display 2 shows the
parameter value.
To edit the parameter, use the Up and Down buttons. To increase the parameter,
press Up. To decrease the parameter, press Down. In order to go to the next parameter,
press Enter.
9.3.4. Enabling/disabling the mode
Indication of parameter number – four leftmost LED light up on the LED line. Display
1 shows the "StAtE" message, Display 2 shows the parameter value. To edit the
parameter, use the Up and Down buttons. To enable the mode, press Up. To disable the
mode, press Down. In order to go to the main menu, press Enter.

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When the mode is activated, the "TEI" LED lights up.
To exit the settings menu, press the Esc button. You will be prompted to exit without
saving to FLASH by the "CAnCEL" message. To save parameters to FLASH, select
"SAUE" and press Enter.
9.4. 'Debris' parameters
The Debris parameter is intended for setting the threshold value of the optical
signal. If the values of the optical signal of the sensor are below the threshold, the display
shows the "AL2" error message that signalizes of unacceptable contamination level.
ATTENTION!
When setting the Debris parameter, make sure that there are no objects within the control zone
and the windows of the receiver and transmitter are clean.
Object is absent. Signal Level > Debris Level. No dirt.
AL2=OFF
Object is absent. Signal Level < Debris Level.
Window of measuring head is dirty. AL2=ON
Object is within the control zone. Signal Level >
Debris Level. No dirt. AL2=OFF
Object is within the control zone. Signal Level <
Debris Level. Window of measuring head is dirty.
AL2=ON
Press the Channel button and select the channel. The current channel number is
highlighted by LED.
Enter the menu, select "dEbr.x" using the arrows, and press the Enter button to
enter the submenu.
9.4.1. Contamination level threshold
Indication of parameter number – the leftmost LED lights up on the LED line.
Display 1 shows the "thrES" message, Display 2 shows the parameter value.
To edit the parameter, use the Up and Down buttons. To increase the parameter,
press Up. To decrease the parameter, press Down. In order to go to the next parameter,
press Enter.
9.4.2. 100% level of signal
ATTENTION!
Always install the current signal level as the level corresponding to 100%, in the following cases:
-when the system is turned on for the first time,
-when the length of the receiver or transmitter connecting wires were changed,
-when receiver and/or transmitter was reinstalled.
Indication of parameter number – two leftmost LED light up on the LED line.

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To edit the parameter, use the Up and Down buttons. To set the current signal level
as the parameter value, press Up. Display 1 shows the "LECr.x" message. To save the
previous value, press Down. Display 1 shows the "LEUP.x" message. In order to go to the
main menu, press Enter.
To exit the settings menu, press the Esc button. You will be prompted to exit without
saving to FLASH by the "CAnCEL" message. To save parameters to FLASH, select
"SAUE" and press Enter.
9.5. 'Count direction' parameter
Default count direction is conducted from top down (Fig. a). If necessary, the count
direction can be changed.
Press the Channel button and select the channel. The current channel number is
highlighted by LED.
Enter the menu, select "dIr.x" using the arrows, and press the Enter button in order
to enter the submenu.
To edit the parameter, use the Up and Down buttons. To set the reverse count
direction, press Up. Display 2 shows the "UP" message. To set the direct count direction,
press Down. Display 2 shows the "dn" message. In order to go to the main menu, press
Enter.When you set the reverse count direction, the "DIR" LED lights up.
9.6. 'Analog output polarity and indication direction' parameter
By default the analog output gives -5V with fully opened receiver (display shows
3.500), and +5V with fully closed receiver (display shows -3.500) (Fig. a) - negative polarity.
If necessary, the polarity of the analog output can be changed (Fig. b).
Press the Channel button and select the channel. The current channel number is
highlighted by LED.
Enter the menu, select "AOP.x" using the arrows, and press the Enter button in
order to enter the submenu.
To edit the parameter, use the Up and Down buttons. To set the positive polarity of
the analog output (Fig. b), press Up. Display 2 shows the "POS" message. To set the
negative polarity of the analog output, press Down. Display 2 shows the "nEg" message.
In order to go to the main menu, press Enter.
When you set the positive polarity of the analog output, the "AOP" LED lights up.

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9.7. Logic output thresholds
The controller is equipped with logical outputs (two logical outputs for each channel).
These logical outputs signalize about going beyond the upper and lower measurement
thresholds.
Press the Channel button and select the channel. The current channel number is
highlighted by LED.
Enter the menu, select "LOUt.x" using the arrows, and press the Enter button in
order to enter the submenu.
9.7.1. Lower threshold
The Threshold Low logical output is an isolated output of the open collector type (n-
p-n). It is set to the active state when the measurement value is lower than the value of the
lower limit parameter.
Indication of parameter number – the leftmost LED lights up on the LED line.
Display 1 shows the "LO.x" message, Display 2 shows the parameter value.
To edit the parameter, use the Up and Down buttons. To increase the parameter,
press Up. To decrease the parameter, press Down. In order to go to the next parameter,
press Enter.
9.7.2. Upper threshold
The Threshold High logical output is an isolated output of the open collector type (n-
p-n). It is set to the active state when the measurement value is higher than the value of the
upper limit parameter.
Indication of parameter number – the leftmost LED lights up on the LED line.
Display 1 shows the "hI.x" message, Display 2 shows the parameter value.
To edit the parameter, use the Up and Down buttons. To increase the parameter,
press Up. To decrease the parameter, press Down. In order to go to the main menu, press
Enter.
9.8. Resetting parameters
Parameters can be reset to factory values. In this case, all parameters of both
channels will be reset.
Enter the menu, select "dEFLt" using the arrows, and press the Enter button in
order to enter the submenu.
To edit the parameter, use the Up and Down buttons. To set the default values,
press Up. Display 2 shows the "LOAD" message. To cancel the action, press Down.
Display 2 shows the "CAnCEL" message. In order to go to the main menu, press Enter.
10. Analog outputs
The analog outputs are set up once by the manufacturer, but in some cases an
adjustment may be required.
To enter the setting menu, it is necessary to do the following: when the controller is
turned off, press the Down button, turn on the power, and, holding the Down button
pressed, wait for the "AOut.1" and "CLbr" messages to appear.
- Connect the voltmeter to terminals AO1 and AGnd.
- Press the Enter button. Display 1 shows the "AOLo.1" message. Display 2
shows the parameter value.
- Use the arrow buttons to set the parameter value so that the voltage at the analog
output AO1 is set to -5V.
- Press Enter to go to the next parameter.
- Display 1 shows the "AOHi.1" message. Display 2 shows the parameter value.

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- Use the arrow buttons to set the parameter value so that the voltage at the analog
output AO1 is set to 5V.
- Press Enter to go to the next parameter.
- Display 1 shows the "AOLo.2" message. Display 2 shows the parameter value.
- Connect the voltmeter to terminals AO2 and AGnd.
- Use the arrow buttons to set the parameter value so that the voltage at the analog
output AO2 is set to -5V.
- Press Enter to go to the next parameter.
- Display 1 shows the "AOHi.2" message. Display 2 shows the parameter value.
- Use the arrow buttons to set the parameter value so that the voltage at the analog
output AO2 is set to 5V.
- Press Enter.
- To save the changes, select "SAUE" using the arrow buttons.
- To exit without saving, select "CAnCL".
- Press Enter to exit the settings menu.
11. Controller settings for working with transparent
objects
When working with transparent objects, it may be necessary to perform additional
controller settings. This is due to the fact that the value of the threshold for finding the border
of transparent objects depends on the degree of their transparency.
The screenshots below show the signals from the CMOS sensor for various objects
and settings.
- Normal object.
- Transparent object (without correction, the Level parameter is not set).

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For correct operation, it is necessaryto perform correction of the CMOS signal and
set the parameter of the position detection threshold. The screenshots below show the
following: the CMOS signal with correction, and the CMOS signal when measuring the
position of the object with correction and with the Level parameter specified correctly.

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11.1. Setting algorithm
To configure the controller, you will need: the RS485 converter to connect the
controller to a PC, and the RF659SP program.
- Turn off the controller.
- Fix the measuring heads in the working position.
- Connect the measuring heads to the controller.
- Using terminals 6, 7 and 8 of the 8-pin connector (see par. 7) and the RS485
converter, connect the controller to the PC.
- Holding the Enter button pressed, feed power to the controller and wait for the
"rF659" and "tESt" messages to appear.
- Run the RF659SP program.
- Select the COM port, to which the RS485 converter is connected. Set the Net
number of device parameter – 1. Click the Connect button.

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- Click View to enter the CMOS signal view mode. The FormView window
appears.
- Make sure that there are no objects in the measurement area, and the windows of
the receiver and transmitter are clean.
- Click the Set CCD Correction button.

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- Install a transparent object in the measurement area.
- Visually determine the level of the object position detection threshold.
- Close the FormView window.
- Enter the value of the Level parameter corresponding to the level of the object
position detection threshold.

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- Right-click in the parameters area and select Load to write the parameter to the
RAM of the controller.
- Right-click in the parameters area and select Write to FLASH to write the
parameter to the FLASH memory of the controller.

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- Click View to open the window for browsing the CMOS signal. The FormView
window appears. Make sure that the Level parameter is set correctly.
- Close the FormView window.
- Click the Disconnect button.
- Connect to the 2nd channel of the controller: select Net number of device – 2,
and click the Connect button.
- Repeat the algorithm for the 2nd channel.
- Turn off the controller.
- Disconnect the RS485 converter from the controller.
ATTENTION!
In normal operation, the RS485 converter must be disconnected from the controller. Contacts 6,
7 and 8 of the 8-pin connector must be free.

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12. LEDs and alarm outputs
Status of outputs AL1 and AL2 is indicated by red LEDs on the front panel of the
controller. The algorithm of the outputs work is described below.
ATTENTION!
When the alarm output is triggered, the analog output of the corresponding channel is latched.
The resumption of the analog output operation is performed after the alarm is turned off.
12.1. Output is off, LED is not lit
The position of the object in the measurement area corresponds to the state of
Measurement Direction parameter,
or the object covers the entire measurement area.

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12.2. Output is on, LED is lit
The position of the object in the measurement area doesn’t correspond to the state
of Count Direction parameter,
or there is a complex object in the measurement area, forming more than one
boundary light-shadow.
13. Warranty policy
Warranty assurance for Edge Sensors RF659 - 24 months from the date of putting
in operation; warranty shelf-life - 12 months.
14. Revisions
Date Revision Description
05.04.2017 1.0.0 Starting document.
26.06.2018 2.0.0 The following sections were updated:
- Basic technical data.
- Connection.
- Operating procedure.
- Working with parameters.
- LEDs and alarm outputs.
The following sections were added:
- Analog outputs.
- Controller settings for working with transparent objects.