Oops, commented too early. But still, a head's up: Most drives have a parameter setting that electrically reverses the motor. It allows a lazy installer to reverse rotation without swapping motor wires. It is usually disabled by default. An extensive power down, faulty memory keep alive supercap/battery, or power surge can toggle that parameter when the drive is powered back up. Another thing that causes that is static electricity, which could have happened when you blew the drive out in the truck. Early versions of some Damnfussy drives were prone to that and defaulting to full factory parameters.
That sucker was dirty....when you blew it out....i was damn....how has that drive survived this long....kudos to you. Enjoyed the video 😊
Everything at that same level was covered in dust, cleaning services must only go up to 8ft high😀
Nice work Subcool, thank you for the knowledge.
Glad you enjoyed it!
One of the main killers of VFDs
Definitely 👍
Great video!
@@ccthepope Thank you for watching!
Oops, commented too early. But still, a head's up: Most drives have a parameter setting that electrically reverses the motor. It allows a lazy installer to reverse rotation without swapping motor wires. It is usually disabled by default.
An extensive power down, faulty memory keep alive supercap/battery, or power surge can toggle that parameter when the drive is powered back up. Another thing that causes that is static electricity, which could have happened when you blew the drive out in the truck.
Early versions of some Damnfussy drives were prone to that and defaulting to full factory parameters.
@@mxslick50 yep, in this case the drive operated when bypass selected on front panel and bypass when drive selected.,
Thanks 👍
I just find things are not serviceable anymore
It could have been more service friendly for sure
ABB > Toshiba
Agreed 👍