# RMC200 Unused Outputs

**URL:** <https://forum.deltamotion.com/t/rmc200-unused-outputs/481>\
**Category:** RMCTools\
**Created:** [March 22, 2019, 2:34pm UTC](https://forum.deltamotion.com/t/rmc200-unused-outputs/481 "2019-03-22T14:34:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jbeyer](https://forum.deltamotion.com/letter_avatar_proxy/v4/letter/j/e495f1/32.png) [@jbeyer](https://forum.deltamotion.com/u/jbeyer)\
**Post date:** [March 22, 2019, 2:34pm UTC](https://forum.deltamotion.com/t/rmc200-unused-outputs/481/1 "2019-03-22T14:34:06Z")

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Is there any way to use analog outputs, that are undefined as closed loop control outputs on an RMC200, without adding a control loop to the feature key? A customer would like to use an output for an open loop command to a proportional relief valve on a pump.

Thanks

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**Author:** ![Jacob\_Paso](https://forum.deltamotion.com/letter_avatar_proxy/v4/letter/j/439d5e/32.png) [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\
**Post date:** [March 22, 2019, 3:37pm UTC](https://forum.deltamotion.com/t/rmc200-unused-outputs/481/2 "2019-03-22T15:37:53Z")

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Yes, you can create an output-only axis. This is a Control Axis with no loops, and does not use up any feature key loops. An output-only axis does use up one of the axes in the 32-axis limit, but does not use any feature key loops. You can use an output-only axis with open loop commands.

-Jacob