PR2 Programmer Manual 1. INTRODUCTION The PR2 Programmer allows for quick and easy configuration of EPC encoders using the accompanying PR2 Software. The programmer also offers analysis and troubleshooting tools: • Program the CPR to any resolution between 1-100,000 •...
36RS, 36RT, 36RH 3. GETTING STARTED 3.1 PR2 Software Before you begin, please download the accompanying PR2 Software. The software can be downloaded from the EPC website at the following link: https://www.encoder.com/pr2-programmer You can also scan the QR code found on the front of the programmer.
PR2 Programmer Manual 3.2 Device Connection The PR2 Programmer connects to the computer using the USB-A to USB-C cable supplied with the unit. You may also use a compatible USB-A to USB-C cable or a USB-C to USB-C cable. Warning: If supplying your own USB cable, ensure that it is capable of handling up to a 500mA supply current.
Page 7
= The PR2 software is running, and the computer is connected and communicating with the PR2 Programmer. Once the PR2 Programmer is connected to the PC and an encoder is connected to the PR2, please proceed to the next section for details on how to use the PR2 Software.
The following sections describe the functions and features of the PR2 Software and how they can be used. 4.1 Device Connection When launched the PR2 Software main screen will appear as shown in Figure 1 below and it will begin scanning for a connected PR2 Programmer.
Page 9
Connect button. Note: Allow sufficient time for the PR2 to connect to the encoder. Normal connection time is between 7 to 10 seconds. If an encoder is not found the PR2 will retry 3 times before giving the error message.
Page 10
PR2 Programmer Manual Once the encoder is connected, the PR2 Software main screen will appear as shown in Figure 4. The Connect button will change Disconnect as soon as the encoder is connected. The software will display the Analyzer Information on the left side of screen. Device Information is at the bottom left and Current Settings are on the top right.
(rpm), and temperature (selectable °C or °F). See Section 4.2.1 for additional information. Note: Internal temperature of the encoder is read once during initial connection and then only updated while in programming mode. The tools button section includes buttons to display additional position information as well as a button to switch between Analyzer and Programming modes.
A decrementing value indicates it is rotating in the reverse direction. A negative value indicates it has rotated in the reverse direction beyond the value of 0. displays the current estimated speed of the encoder in revolutions per minute. Reported RPM is directional and is dependent on rotation and quadrature direction setting.
This section provides information about the connected encoder. Model, Serial Number, Firmware (FW) Version, and Manufacture (Mfg.) Date are read from the encoder registers and displayed here to verify the connected device. When the mouse cursor is hovered over the model number (TRP in this example) a tool tip appears that will display the entire factory order guide code.
Programming Mode and return to Analyzer Mode. Programming Mode While in the encoder status, including temperature, will be polled and updated regularly. The internal device IC temperature display will be shown in Celsius by default but can be changed to Fahrenheit by pressing the °F tab next to the temperature display.
The value entered must be a whole number ranging from 1 – 32. This field will be unavailable if commutation cannot be selected on the connected encoder.
Any combination that includes an Index Width of 90° Degrees or 180° Degrees will provide four options. Any combination that includes an Index Width of 360° Degrees will provide two options. Selecting the Index Alignment will determine the waveform code desired to program the encoder to. Program Device Note: The encoder is only programmed to these new settings after clicking the button.
Figure 13: Tools Buttons Connect/Disconnect button will be available after the PR2 Programmer is connected and can be used to Connect/Disconnect the programmable encoder from the PR2 Programmer. Warning! Always press the Disconnect button to safely remove power from the encoder prior to physically disconnecting the encoder from the PR2 Programmer.
Page 18
PR2 Programmer Manual Figure 14: Restore Factory Configuration Warning Program Device button is used to program the connected encoder with all the new settings and the selected Incremental Waveform. When programming is successful the Current Settings section will be updated with the newly programmed values and a Programming Successful! dialogue will appear.
Position Data Window in the top menu bar. If the connected encoder has an index, up to one full rotation may be required to synchronize the zero position of the encoder with the radial gauge. The graph also has zoom capability. It is possible to zoom into an area of the graph by a left click and hold of mouse and drag cursor around the area to zoom in.
Calculator in the top menu bar. This calculator tool contains three separate calculators that are specific to encoder related parameters and can be used for determining the desired values for optimal system performance or encoder operation. Figure 19: Encoder Calculator Calculate Note: For each calculator, enter only two parameters at a time to determine the third parameter.
Performing calibration requires that the encoder is rotating at a constant velocity and must meet minimum RPM requirements of the desired calibration type. Upon opening the...
Page 23
– Runs all three calibration types: Analog, Digital, and Eccentricity. 90 RPM, minimum. Analog – Optimizes analog signal quality from encoder IC. Typically used to compensate for temperature. 75 RPM, minimum. Digital – Optimizes digital signal quality from encoder IC. Typically used to compensate for mechanical misalignment within the encoder optical system.
Page 24
See Figure 23. During calibration the abort button may be pressed to abort calibration. Calibration values will not be written to the encoder, and all progress will be eliminated. Please allow sufficient time for the software to abort the calibration process.
This feature allows for the index to be reprogrammed to the current encoder position. Before attempting to teach index ensure the encoder is in the exact position desired for the new index position and free from any rotation/motion.
Need help?
Do you have a question about the PR2 and is the answer not in the manual?
Questions and answers