Digital servo controller for DC motors with carbon brushes:
Profi2S CNC Digital Servo Controller is capable to control DC servo motors with carbon brushes. It is suitable for both hobby-type and half-professional CNC applications. Its Step/Dir-system input and power supply demands fits to the Profi2 CNC Controller family (to the Profi2B base card) and often mixed-mode CNC drive (servo and stepping motor) can also be built (cost-effective mixed build-up). Because of its uniform, modul-type build-up controls for any number of axes and type can be bult. During its the most optimal fit to the popular Mach CNC control programmes was a key issue. Becasue of its high-power, double processor build-up it is suitable for wide range of servo-type or servo-like DC motors. It can be applied to both professional and home-built servo motors Based upon its two-level, sophisticated motor-protection system, it realizes a high-level motor-control well beyond the general hobby-demands
Main technical characteristics (DSP V1.2 + PID V1.2):
- Step/Dir-system control inputs (Schmitt-trigger type TTL),
- arrange-able build-up, control for each axis, possibility of the application of mixed mode,
- control for DC motors with carbon brushes, with full PID algorithm,
- power transmission FET bridge for max. 90V, 10A DC,
- dynamics increasing (current-overshoot regulation),
- 10-bit PWM excitation control (20kHz),
- counter-current and passive (mixed mode by PID) motorbrake-handling,
- 2-channel (A, B), quadrature encoder handling,
- level-matching by TTL and OC encoder inputs (digital/analogue), with power supply,
- high-speed, double processor build-up (DSP + PID),
- upgrade-able firmwares (through ICP),
- stepping frequency of maximum 51 kHz,
- optimalize-able encoder handling with a division of 200 - 1000,
- signal and power supply compatibility with Profi2B,
- stress test (by the means of Test button),
- +- 65535 step virtual error buffer,
- real-time error-signal monitoring and recording (by using Profi2S Servo Monitor + monitor adapter, through RS232C connection),
- easy configuration (by jumpers and potentiometer trimmers (DSP + PID),
- complex error indication and status signals by LEDs,
- POST power-transmission tests and error indication,
- E-Stop input, with emergency stop (stop by motorbrake),
- 2-level, internal protection system,
- error signal output (collected TTL error signals toward the PC),
- protection against thermal overload (by a thermo sensor, heatsink temperature monitoring),
- protection against error buffer overrun,
- slip (tracking follow-up) error indication,
- motor peak-current limit (by potentiometer trimmer adjustment, and indication),
- protection against getting stuck of the motor,
- protection against encoder over-rotating,
- high speed impulse memory, optimalised to Mach3,
- high.level ,noise protection,
- installed cooling,
- 2-sided, partly SMD mounted PCB.
- etc...
Profi2S Servo Monitor Software
Servo Monitor presents and shows the mechnaical deviations of Profi2S CNC Servo Controller, i.e. the relation of the aimed (by the computer suggested), and the actual (realised by the motor) positions. With the help of the Monitor the Controller can be tuned together with the the motor and mechanical parts most optimal. The software communicates with the CNC Servo Controller through the attached adapter card.
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