adccommunitymod (AutomationDirect) asked a question.

STP-DRV-4850 "EN" goes low along with "DIR" or "STEP"

Created Date: November 21,2019

Created By: Cliff T.

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So I am finishing up my "seek home (SH) " command with a P1K and STP-DRV-4850 and have my N.O. prox sensors individually wired to the inputs (complete separate circuits that fire their inputs individually). For some reason the "EN (home sensor) " goes low by itself when the sensor is fired but also is going low when I fire either the "STEP (CW over travel) " or "DIR (CCW over travel) " sensors during the "SH " command causing the motor to stop instead of going back to find the "Home " sensor. If I fire EN it's EN only but if I fire "STEP " it's "STEP and EN " or if I fire "DIR " it's "DIR and EN ". Has anyone else ever had this experience and/or what might be causing this? I am am assuming I have a wiring issue because it is coming up on the SureDrive software status monitor when I test the sensors before I download to the drive. As always thank you to this community in advance for your time.


  • adccommunitymod (AutomationDirect)

    Created Date: November 21,2019

    Created by: Cliff T.

    So I am finishing up my "seek home (SH) " command with a P1K and STP-DRV-4850 and have my N.O. prox sensors individually wired to the inputs (complete separate circuits that fire their inputs individually). For some reason the "EN (home sensor) " goes low by itself when the sensor is fired but also is going low when I fire either the "STEP (CW over travel) " or "DIR (CCW over travel) " sensors during the "SH " command causing the motor to stop instead of going back to find the "Home " sensor. If I fire EN it's EN only but if I fire "STEP " it's "STEP and EN " or if I fire "DIR " it's "DIR and EN ". Has anyone else ever had this experience and/or what might be causing this? I am am assuming I have a wiring issue because it is coming up on the SureDrive software status monitor when I test the sensors before I download to the drive. As always thank you to this community in advance for your time.

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  • adccommunitymod (AutomationDirect)

    Created Date: November 22,2019

    Created by: MikeN

    Dont know on that one. Seems like it may be some sort of wiring issue