Low Voltage Error

The "LOWV" low voltage error is triggered by motor modules if they measure a motor voltage below a set minimum. This usually occurs when the emergency stop button is pushed, some other safety equipment (e.g. a door) is interrupting the motor supply, a fuse is blown or the wiring is defective.

• Check whether e-stop is pushed
• Check whether safety equipment has released motor power
• If present, make sure to push the button to make the safety equipment release motor power. Usually this is a blue lit button but check the documentation for your specific robot setup.
• Check the fuses
• Check the wiring
• Check whether the LED at the motor power supply is lit, if it is not check the AC voltage going into the power supply. It usually goes through a relay for e-stop.

Note that not all modules can measure the voltage, especially some stepper modules. These can trigger other error codes if motor power is missing usually an encoder error.