adccommunitymod (AutomationDirect) asked a question.
Created Date: January 09,2018
Created By: Langleym
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I have a machine idea that I am gauging the feasibility and cost of right now. It would consists of a indexing conveyor controlled by a stepper, stepper with encoder, or servo (have not decided yet). It will index parts under a tyvek web in which the parts will get a tyvek seal on top then die cut off the tyvek web. Do applications exists where there is 1 master motor and both the convey and web are controlled with timing belts whereas the surface feet is all calculated out through the various gear ratios and pulley diameters? Or is it more industry practice to use two independent motor systems (1 for indexer and 1 for web) and sync their motion through controllers? If the ladder is true, could the web be controlled by a encoder follower type system connected tot he main indexing system or does that application experience too much lag? speeds and cycle time would be extremely low; maybe 1 or 2 cpm.
Created Date: January 09,2018
Created by: Langleym
I have a machine idea that I am gauging the feasibility and cost of right now. It would consists of a indexing conveyor controlled by a stepper, stepper with encoder, or servo (have not decided yet). It will index parts under a tyvek web in which the parts will get a tyvek seal on top then die cut off the tyvek web.
Do applications exists where there is 1 master motor and both the convey and web are controlled with timing belts whereas the surface feet is all calculated out through the various gear ratios and pulley diameters? Or is it more industry practice to use two independent motor systems (1 for indexer and 1 for web) and sync their motion through controllers? If the ladder is true, could the web be controlled by a encoder follower type system connected tot he main indexing system or does that application experience too much lag? speeds and cycle time would be extremely low; maybe 1 or 2 cpm.
Created Date: January 11,2018
Created by: EGoethe
Using STP-DRV-80100 or STP-DRV-4850 you can have an encoder input (from a Master Stepper). Then set the ratio for the follower mode.
With Sure Servo also you can forward the pulses from one servo (Master) to the second (Slave) for the same purpose.
A more advanced aproach would use a BRX sending pulses for both Master and Slave. If only want to change the gear ratio you can use AXGEAR. If additionally the gear ratio it is needed to make a correction in the position of the Slave then would have to use AXFOLLOW. If you want more precision and power use the Sureservos.
I hope this helps