text: <s>[INST] Kinetix 5500 Home and registration input Hi i have a Kinetix 5500 drive where i require 2 registration sensors and a home switch. with the Kinetix 5500 drive you have 2 inputs available and these inputs can be selected as the functions DI1 - Home & Registration 1 DI2 - Registration 2 When using the Home & registration input is it plausible to use 2 sensors for 1 input or is there a better way by using another input for the 3rd sensor on remote IO or the main PLC rack ive tried searching the RKB but cant find anything Thanks Andy [/INST] Hello @ndy. I never tested 2 different senors on the 1st input of the K5500. Look in the manual 2198-UM001M to see if the internal digital input circuitry is compatible with the sensors that you would like to use (Page62). To avoid damage on the output of the 2nd sensor if the 1st one is active , you can use diodes. But I never test it. The other options are the following, use a PLC digital input to generate the Home input. but in this case you have to create you're own Homing cycle. Or use a time stamped input to create a Soft registration input (more complex to implement), the 2nd option is not as good as a real registration for very dynamic application. regards \\n </s>