YM:Micro Epsilon ILR 2250

The Distance Sensor is already setup by the manufacturer as follows:
Distance 25m==RB -> 4mA (Silo Level 0m)
Distance 0,1m==RE -> 20mA (Silo Level 25m)

Sensor is from factory adjusted to 25m. So the 4-20mA are 25m --> 27648.

Template:Notice bms

1 Measuring Concept

The conditions below must be clear. The laser sensor only provides a value of 3-axis. In other words, the volume is heavily dependent on the silo or cone size. In the old version of the software, percentages are still displayed in WinCC, but they are in no way related to the silo volume. 10% of the laser is not 10% of the 500m³ silo because the cone is still there. Please also inform the customer correctly if necessary. Shown here are several scenarios!

File:Laser Sensor Overview Mechanical Condition.jpg

Here you can see the volumen to the percentage from an 500m³ Silo. (Silo has diameter of 5.5m, 2.7m cone, 20m height)

Calculation of the correct volumen:

• H: Nominal height of the cone
• h: actual heigt (filling height)
• R: Nominal radius of the cone

In the new software the volumen will be calculated like this.

According "radiation theorem":

Half height means half radius. We can put the radius and the height in relation:

V=1/3 * PI * (h/H * R)^2 * h

File:Laser Sensor Distance to Volume.jpg

2 Mechanical Adjustment

To get always a correct measurment, you need to adjust the red laser point in the center of the pipe above of the shutter. If the laser is adjusted at the conical part, the reflection is so bad, that the laser cannot measure and will send us an value out of range which shows a negative value in WinCC.

If there are no jack-bolts,then let them drill to be able to adjust perfectly. But a seeling inside to be sure no water from rain can come inside. We know, this need a lot of time and it's not so easy, but very important to get a stablie signal from the laser!

After adjusting take care there is everything perfect closed like in the pictures below.

File:Laser Adjustment1.JPG File:Laser Adjustment2.JPG File:Laser Adjustment5.JPG File:Laser Adjustment3.JPG File:Laser Adjustment4.JPG

3 Measuring Concept

We do not want to measure continously.

In order to protect the lense and the laser diode a measurement is only done when setting the OupMea-Triggering output.

We want to measure like this:

Silo Filling >> every 5 minutes

Silo discharging >> every 10 minutes

else >> every 60 minutes

The old sensor ILR1181 sent us the analog value o the last measurement also in the pauses.

The ILR2250 does behave differently. When not measuring, we receive a 3mA signal. Therefore the old value need to be remembered in the PLC.

Compare analog output ILR1181 and ILR2250:

File:ILR1181vsILR2250.png

4 Hardware Connection

File:Drawings ILR2250.png

The RS422 Data Lines are for Service purpose connected for each Sensor in the Cabinet near the Line.

5 Short instruction for parametration (ONLY in case the parameters were not or wrong setted by manufacturer)

• Install the driver for the RS422 converter (usually Windows 10 has it by default)
• The RS422 converter will show up in the Windows Device manager as COM Port
• Connect the VD884-Module to the RS422-USB Adapter and to the ILR2250 as follows: T/R+ -> WH ; T/R- -> BN ; RXD+ -> PK ; RXD- -> GY ;

File:RS422-Connection.png File:Connector.png
File:ILR Anschluss.png

• Check the Sensor Manual carefully before you modify anything in the Sensor
• Establish a connection to the Sensor Settings: with sensorTool, provided from Micro Epsilon COM-Port, 9600Baud,

File:SensorTool ILR2250.png

5.1 List of Parameters/Settings

File:SensorTool ILR2250 Settings.png

this shows the configuration as it is predifned by the manufactor, if this doesn't look like this changed it to those settings and inform EECIBN about that!

Do not change the Trigger mode to "none". This would mean continous measuring - see introduction chapter.

Also important is, that the Laser is switched OFF here. If you switch it on here, the trigger will be ignored and the measurement is continuously on.

Reason for Trigger:

The sensor is mounted on the top of the silo and the temperature is already really high. At 50°C the sensor will start reducing the measurement cycles and finally switch off and doesn't work anymore! So it's really important to use the Trigger mode!

File:SensorTool ILR2250LaserOFF.png

5.2 New Silo Data Panel

Since Imc_23.08 there is a new panel for the Silo Data to display the m³ for the customer. As you can see below in the Screenshot, there are a few new parameters and functions.

1. Silo Data:
   1. With the two height-values + diameter the correct volume will be calculated. Also later the degree of filling is calculated correctly in the conical part and in the cylinder part. (Still we have the same problem with the material cone inside the silo. Explain the customer, that the Laser is for each mm correct, but we don't know how the material "looks" inside.
   2. Over the density the customer can also see in the panel the weight in tons. Of course also here we have again some calculation and this value will be never excatly for each kg. At least some tons.
2. Sensor Calibration
   1. Now you can switch on the measuremnt output direct in the panel. After 20sec. the sensor will be stable and you see the "measure valid" bit. Then the value get stored and the Material Height will be calculated. Is there an ABB Sensor mounted, then the library will work different. The output will be always on, because ABB Sensor is able to measure continuously.
   2. Automatically after 60 Minutes the output measurement will be switched off, if you forget to do it yourself with the button.
   3. Reference Setpoint is the value which you changed in the old Software in the SCL code. Now it's in the panel and so customer can also change himself. This is the maximum distance if the silo is empty. Nothing to adapt in the SCL code.
3. Actual Value
   1. The micro epsilon Brückner Firmware is working from 100 to 25000mm for the 4-20mA signal. For this we need a range of 24900mm for the analog value of Siemens 27648. The Offset of 25000mm is because the sensor is working opposite. 4mA means 25000mm, the biggest distance!

File:Laser Panel Silo Data.jpeg

5.3 Troubelshooting

Brückner's config is already implemented as "factory settings" in the sensor. So if you use the factory reset function, the sensor will be adjusted as it was discussed with brückner. So no general settings are losed after the factory reset. Inside the information of the sensor you can see "option 013" which is the special configuration for brueckner.

Firmware Update tool

With the program "ILR2250_Update_V1-1-26" from Micro Epsilon we can update the Firmware from the Sensor. The brueckner spezific configuration will be NOT delted. The "Option 013" will be still there!.

1. Install program
2. connect with USB Adapter to the sensor
3. Select the correct sensor type
4. download the new firmware