We have a Magni robot with the MCB version 5.1. We used to run the robot using teleop_keyboard over ROS perfectly till last spring. Then, the robot was not used for about 10 months. When we are running it now, the motors do not work. After looking through the troubleshooting page, we found that the 5th (STATUS) LED does not light up anymore. We are thinking this may be a MCB issue. Please suggest steps for troubleshooting. The ROS commands are going through but the wheels do not respond. We know that the controller is not even operating because the wheels don’t lock-up when the motor switch is ON. We have also checked the cables from the motor to the MCB but still the problem persists.
The batteries are charged for a long time with the combined voltage just above 24 volts. Both push-buttons are working with both lights working with the switches.