Rexroth error code F2187 is a common error that occurs when there is a loss of encoder 1 reference in a motor. This error message indicates that the motor encoder needs to be referenced using the internal drive command Set Absolute Reference. This process can be done either through the commissioning software or an external controller. In this article, we will take a closer look at this error code, the causes behind it, and how to fix it.
What is an encoder reference?
Before we dive into the specifics of error code F2187, it is essential to understand what an encoder reference is. An encoder reference is a position reference that is used to locate the rotor position of a motor. The position reference is typically set to zero when the motor is powered up. However, if the position reference is lost, the motor will not be able to operate correctly.
Causes of encoder reference loss
There are several reasons why an encoder reference may be lost. Some of the most common causes include a power outage, a fault in the encoder or drive, or a problem with the wiring. If the reference is lost, the motor will not be able to operate correctly. This is when the error code F2187 is triggered.
Fixing encoder reference loss
If you receive the F2187 error code, the first thing you need to do is reference the motor encoder. This process involves setting an absolute reference for the motor encoder. There are two ways to do this, either through the commissioning software or an external controller.
Commissioning software
If you choose to reference the motor encoder through the commissioning software, you will need to follow these steps:
- Step 1: Connect your computer to the motor drive using the commissioning software.
- Step 2: Open the software and navigate to the reference menu.
- Step 3: Select the option to Set Absolute Reference.
- Step 4: The motor will start to move to find the absolute reference position. Wait until the motor has stopped moving.
- Step 5: Once the motor has stopped moving, the reference process is complete. You can now restart the motor and test it to ensure it is working correctly.
External controller
If you choose to reference the motor encoder using an external controller, you will need to follow these steps:
- Step 1: Connect the external controller to the motor drive.
- Step 2: Send a command to the motor drive to Set Absolute Reference.
- Step 3: The motor will start to move to find the absolute reference position. Wait until the motor has stopped moving.
- Step 4: Once the motor has stopped moving, the reference process is complete. You can now restart the motor and test it to ensure it is working correctly.