Stepper Motor

Place to aggregate motor information, mostly as it relates to microscopes

2018-05-28: creating page to aggregate industry pinout information and mcmaster recommendations.

Indexer connector (single)

BBB

mcmaster goal: come up with a standard connector to put on BBB cape

Goals:

• Requirement: fit 6 connectors on reasonable size BBB cape
• Use an existing standard
• COTS cables, or at least easily
• Shielded
• Durable

Main candidates:

• DB9
  • Durable connector
  • COTS super available
  • Shielded
  • Breakout boards readily available
  • No insustry standard pinout
  • I thought Gecko, but that's actually for the motors
• DB25
  • Industry standard connector
  • Single and multi versions
  • However, too large
• Combicon style connector
  • Quick to make
  • Can use shielded cables
  • Can't buy whole cable, or at least will be expensive
  • Wires can stress and fall off
  • Used on Gecko and some others, although not consistently

DB25 (step/direction)

Above: Compumotor OEM650 pinout

Above: PMC VS Drive pinout

This seems to have been a de facto standard for some years. I've observed it on Compumotor, PMC, and other drivers.

mcmaster: IMHO this is too bulky to use in modern applications, although I do have several legacy drivers using it

IDC 5x2 (step/direction)

Used on some MDrive17 motors

mcmaster: of particular interest to me since I try to use these motors by default.

Indexer connector (multi)

Gecko DB25 (multi-axis indexer)

Above: G540 indexer connection

The G320X servo driver uses post mounted Phoenix contact type connectors.

Motor connector (power + data)

M12 connector (power + CAN)

M12/M23 seems to be common on modern stepper motors. The MDrive manual for example cites it was done to reach IP65 enclosure rating:

The MDrive17Plus2-65 Motion Control adds protection against the ingress of fluids and dust to the MDrive17Plus2 by changing the motor-drive enclosure to meet IP65 specifications. With this change the connector configuration changes to industry standard M12/M23 circular connectors.

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• A-coding: actuator-sensor plug connections for DeviceNet, IO link and Profibus
  • DeviceNet is used my mcmaster MFCs
• B-coding: Fieldbus connections for Profibus and Interbus
• D-coding: Industrial Ethernet, Profinet, Ethernet/IP and EtherCat
• S-coding: Motor, Frequency-convertors, motor operated switches, PSUs for Power, 620V, 12A
• T-coding: Fieldbus comp, passive distribution boxes, motors, PSUs for Power, 63V, 12A

Motor connector (driver)

List of common connectors

Sherline (unipolar motor)

Combicon 5 pin (bipolar motor)

Above: PMC motor

Gecko DB9 (bipolar motor)