# Can't control the conveyor speed by using an analog signal

**URL:** <https://tech-community.robotics.abb.com/t/cant-control-the-conveyor-speed-by-using-an-analog-signal/12047>\
**Category:** PowerPacs\
**Tags:** pickingpowerpac, pickmaster, irb360\
**Created:** [October 7, 2025, 8:15am UTC](https://tech-community.robotics.abb.com/t/cant-control-the-conveyor-speed-by-using-an-analog-signal/12047 "2025-10-07T08:15:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Tian](https://avatars.discourse-cdn.com/v4/letter/t/ee7513/32.png) [@Tian](https://tech-community.robotics.abb.com/u/Tian)\
**Post date:** [October 7, 2025, 8:15am UTC](https://tech-community.robotics.abb.com/t/cant-control-the-conveyor-speed-by-using-an-analog-signal/12047/1 "2025-10-07T08:15:58Z")

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Hi everyone,

I have an issue with controlling the conveyor speed using an analog signal in Picking PowerPac. I followed the steps in Example 6.7 of the Picking PowerPac Application Manual. However, in the option _Assigned to unit: PPASIM_, I can only see _PPABOARD1_. When I continue until step 15, I still cannot control the conveyor speed.

Could you please advise me how to simulate the conveyor to start and stop sequentially?

Thank you very much for your support.