I think you need to put it back into mechanical area. Can you not get mechanical to have a swing door around the arm that is rotating out by 90? Something that is a a box with a door that slides up and down to close the swing arm into its box.
Ask yourself if you don't at least do below would...
Also might want to think about some sensing device where if the lift chain/cable broke, that you would set an emergency lift brake.
I have seen where either a prox was used in conjunction with a wooden wheel, where bolts are screwed into the wheel around the circumference. If you do not see the...
Start/Stop station usually found at main control enclosure or HMI central display (control room). Start/start can be a real button or a button on an HMI display.
Estops located at any operator interface where the operator is interacting to the machine.
If you have an estop usually there is a...
Look up Meyers hub for all conduit penetrations since its washdown. Different connectors for different levels of nema ratings.
https://www.eaton.com/us/en-us/catalog/fittings/myers-hubs.html...
NFPA 79 has a standard for machinery. It does go into these issues. But most companies pick and choose the standards and modify it to their wants and needs in presenting standard documentation on drawings.
Just remember a label maker can only display a visible wire number that is 8-10 letters...
A lot of places have gone to the private network (industrial controls) and public network (IT network). IT people do not maintain the private network but is maintained by the maint team for the machines or whatever is in the building. This is very true today since every controls house is...
COP instruction sometimes you have to put length in from the string.len or really look at data to see what you are coping in that variable if coping from one data type to another. Its not straight forward as you see. When you copy to one different variable its inconsistent on what it copies...
Is there anyway to change the format coming out of the asc2 device? better to work with a real than an exponent. Even if you could have a whole number where the decimal place is understood to be at a certain position.
Otherwise your building a look up table with exponents to put the decimal...
There is a parameter on most drives that will stop based on a current setting. Its called by a few names but here are two drives I know what its called.
Shear pin or software current trip, this setting is set to just above steady state run current to trip when you see a current level slightly...
Your company being an OEM its been my experience that usually most OEMs come to the conclusion that every panel should be UL stickered and the KA ratings on motor components are at a certain level. That way when your selling into different areas of the country the local electrical inspector if...
Its been my experience that mechanical will spec out the motor to run at a rpm that is the rated speed. Usually the mechanics around a motor are 1.3x above rated speed. So anything above 75 hz would be a question for mechanical side to verify if it can handle that speed.
Also be aware that...
you have to realize that most companies use customer support and service as a revenue stream. If your complaints are not contributing to the revenue then you will be ignored. Would you as a company help a person for free?
Multple motors on 1 vfd is common. Just look at google pdfs from different manufacturers.
https://literature.rockwellautomation.com/idc/groups/literature/documents/at/140m-at003_-en-p.pdf
https://www.toshiba.com/tic/datafiles/10.2_S11_Multiple_motors_on_one_VFD_6509.pdf...
So do you reverse directions based on a torque value(rebar jammed together causing some resistance on table)?
Maybe need some way to measure torque on the shaft of motor?
So oversize the motor by how much?
Then make the drive you use to be heavy duty rated drive.
Problem with replacing pieces on old equipment is when you come to the conclusion in the middle of it that you don't have a certain hardware or insulator, etc.....
Maybe dedicate someone in plant full time to replace or refurbish parts of the MCC. Give them a budget, plan it out and plan it 2x...
maybe have a category of less than $$ dollar amount, you do this process.
If you have a category of greater than $$ less than dollar amount, you do this process.
Maybe a 3rd category of greater than $$ dollar amount, you do this process
The highest dollar amount you would have all the gate...
If you have some distributors of plc equipment in your hometown. Just ask if they have a lab and could you come and try to self teach yourself at their equipment. Most would let you do this at their facility. Since they see you as a future customer and would make good business sense. Also...
Yes, better to start in huge corp engineering to learn the processes, experience a mentor, etc... Alot of smaller companies people wear a lot of hats and don't have time to mentor.
I see alot of uses of ethernet cables used for a lot of control devices such as vfds and IO blocks in field.
As many times as i see installs that I thought would fail as long as the ethernet cables are not in same raceway or wire duct then your usually ok. But have seen where ethernet cables...
