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SLAC utilizes 3 of the 4 MDrive motor sizes: NMEA NEMA 17, 23, and 34.
- 17: 42 mm (mostly used as slits for steppers, linear actuator version used on things like IPM/PIM)
- 23: 57 mm (mostly used for Parker/generic steppers for injectors)
- 34: 85 mm (definitely used for larger moves like mode change ex. CXI has two "pointings" so the entire beamline is shifted from the bottom with these depending on what focus we run in)
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PURPLE: The dash N is just indicating the motor has a knob or does not have a knob. The knob can be used to move the motor by hand.
There are also MForce drives. We use the MForce micro drive with an external encoder reading (MFI3CRL17N4-EE). These are housed inside an MForce chassis and connect to a specific type of motor protection board that is wired to a burndy connector and serial port on the chassis.
Motor Protection Boards
Each type of motor has its own motor protection board linked below. A few notes:
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