On wires and connectors
Posted by
steveggca
on 2002-05-01 06:03:27 UTC
These are the Practices that I have Observed In 14 years of working
on Industrial CNC machine tools.(Fanuc and Mitsubishi
Controls,motors and drives)
Motor to drive connections are done with Cannon/Amphenol style
soldered connectors at the motor end and crimp-on ring connectors
at the drive end. There is normally several individual wires routed
through a conduit as opposed to a molded cable, but I have seen
molded cable used for short low Amp applications.
Motor feedback cables are connected at the motor with soldered
Amphenol connectors as well. At the drive or control end they are
connected with crimped or soldered connectors similar to DB
connectors but of a flat pin style.(Honda, but not the same one)
Cable is twisted pair with shield.
Connections between electronic devices are the same as the feedback
cables.
Power connections are Crimped ring connectors and terminal strips
Lately spring(weidmuller)terminals are starting to be used.
All the connectors used have integral strain reliefs.
Amphenol 97 connectors are much less expensive,and interchangable
with the MS series. they are built to the same standard but have
silver instead of gold plate on the pins, and the plastic insert is a
different size.
Wire used is usually normal hookup wire but of a very high strand
count.As a rule the more strands the better.
Wire used is always rated for oil resistance.
For very high flex use, only purpose built wire (ie olflex) will last
any amount of time.
For stationary use normal hookup wire is fine.
I guess that what I'm saying is don't agonize overmuch, solder or
crimp,have proven themselves. Standard high strand hookup wire will
work in ALLMOST ALL aplications. use strain relief at all connectors.
Protect the wire from oil and mechanical wear.
on Industrial CNC machine tools.(Fanuc and Mitsubishi
Controls,motors and drives)
Motor to drive connections are done with Cannon/Amphenol style
soldered connectors at the motor end and crimp-on ring connectors
at the drive end. There is normally several individual wires routed
through a conduit as opposed to a molded cable, but I have seen
molded cable used for short low Amp applications.
Motor feedback cables are connected at the motor with soldered
Amphenol connectors as well. At the drive or control end they are
connected with crimped or soldered connectors similar to DB
connectors but of a flat pin style.(Honda, but not the same one)
Cable is twisted pair with shield.
Connections between electronic devices are the same as the feedback
cables.
Power connections are Crimped ring connectors and terminal strips
Lately spring(weidmuller)terminals are starting to be used.
All the connectors used have integral strain reliefs.
Amphenol 97 connectors are much less expensive,and interchangable
with the MS series. they are built to the same standard but have
silver instead of gold plate on the pins, and the plastic insert is a
different size.
Wire used is usually normal hookup wire but of a very high strand
count.As a rule the more strands the better.
Wire used is always rated for oil resistance.
For very high flex use, only purpose built wire (ie olflex) will last
any amount of time.
For stationary use normal hookup wire is fine.
I guess that what I'm saying is don't agonize overmuch, solder or
crimp,have proven themselves. Standard high strand hookup wire will
work in ALLMOST ALL aplications. use strain relief at all connectors.
Protect the wire from oil and mechanical wear.