SAMB-STEP-DCDRIVE-4CH
Project description
Motor driver to control stepper and DC brushed motors in constant current or speed control. Used in the SAMbuCa project.
STEP DC DRIVER - used in cassette
Main Features
- Controls stepper and DC brushed motors
- Four phase outputs
- Constant current or speed control (possibility of expanding to AC and DC Brushless motors)
- Can be used over long distances with cable length compensation up to 1km
- Standard stepping (open loop) or FOC (closed loop) control via the same interface
- Easily swappable with SHS driver (requires swap of resolver cassette with Resolver + R2E cassette)
- Hardware
- DSP TI TMS320F28335 32-bit MCU with 150 MIPS, FPU
- Profinet/Profibus socket for Anybus gateway
- RS-485
- Encoder inputs for closed loop operation
- Acquisition chain
- Phase voltage scaling
- AA filter: 8th order low-pass elliptic filter
- 4-channel 12-bit ADC
Project information
- Official production documentation:
- In House Stepper Motor Driver - Presentation at SAMbuCa project meeting, Jan.2022
- Users
- Software
- SAMbuCa project
- Frequently Asked Questions
Contacts
General questions about project
- Paul Peronnard - CERN - hardware
- Eloise Matheson - CERN - software
Status
Date | Event |
---|---|
2014 | Hardware design made |
2015 | First use in CERN's nTof Sample Changer (stepper, 1 axe) |
2016 | First use in LHC Piezo-Goniometers and North area collimators (stepper, 6 axes) |
2019 | First use in Collimator Cycling Test Bench (stepper, 1 axe) |
2021 | First use in East Area Devices (DC-brushed, 31 axes) |
20-01-2022 |
Design presented in SAMbuCa project meeting. In total 42 axes controlled at CERN. Ideas for design upgrade coined. |
17-05-2022 | Next generation motor driver presented (CERN-only) |
20 May 2022