I've been successfully using ekos and indi to control my ZWO eaf focus motors, I have three of them. One of them has worked fine for three other sessions and is fairly new, but is now throwing errors whenever I try to move to an absolute position using the focus module in Ekos. As soon as I push the button to move the focus motor, indi control panel shows that the EAF is throwing repeated errors in the logs. These errors are repeated until I disconnect from the device, at which point I can't reconnect to the motor until I restart the driver in the indi web manager . If I look at the indi control panel, the logs show me the following log events after trying to move the motor to a absolute position. I have had 0 issues with this focus motor driver over the past 5 years or so, can you offer me any advice? Thank you.

2024-05-02T03:39:48: [ERROR] Failed to read position. Error: 4
2024-05-02T03:39:47: [ERROR] Failed to read temperature. Error: 4
2024-05-02T03:39:47: [ERROR] Failed to read position. Error: 4
2024-05-02T03:39:47: [ERROR] Failed to read temperature. Error: 4
2024-05-02T03:39:47: [ERROR] Failed to read position. Error: 4
2024-05-02T03:39:47: [ERROR] Focuser failed to move to new requested position.
2024-05-02T03:39:47: [ERROR] Failed to set position. Error: 4
2024-05-02T03:39:46: [INFO] Focuser reached requested position.
2024-05-02T03:39:46: [ERROR] Failed to read motion status. Error: 4
2024-05-02T03:39:46: [ERROR] Failed to read temperature. Error: 4
2024-05-02T03:39:46: [ERROR] Failed to read position. Error: 4
2024-05-02T03:39:46: [INFO] Focuser is moving to position 20000

What is more is if I connect to the focus motor with the ASI studio, it seems to control the motor just fine, moving the focuser in and out so it seems to be not a hardware issue. Here are the versions of the driver that I am using with stellarmate and the logs: ( )

Had a chat with Jasem Mutlaq and it is entirely possible that these errors on the focus motor are related to insufficient power to the usb device. I have four devices plugged into a RPi 5 running stellarmate. Going to test out the focus motor with limited devices attached and see if that solves my problem. If so I will be buying a powered usb hub for future sessions. I will report back so that if others run into this they can see the resolution.

My problem was not voltage but was obstructed movement on the focus rod. The EAF bearing that holds tight to the focus rod had slipped and was too close to the housing for the focus motor causing obstruction of movement I believe. For those that may be struggling with the same error, check voltage, obstruction of motor movement or other issues that would cause the motor not to be able to respond to commands.