The VMC-3000 Servo Motion Controller is ideal for single-axis control in systems requiring the ultimate in velocity stability and ultra-fast acceleration. Coupled with one of our LA series Linear Servo Amplifiers driving an air-bearing spindle, velocity stability performance of 0.0006% at 7,200RPM* (< 50nS) and acceleration to 15,000RPM in less than 1 sec is now possible!
As a single-axis linear servo amplifier motion controller, the VMC-3000 can be configured to operate in a variety of modes to match just about any application. Operating modes include: Position, Analog Velocity, and Analog Torque. Additionally, Digital Frequency-Locked Velocity and Digital Torque modes are available.
A built-in serial interface makes programming a simple task. With over 100 commands, there is enough flexibility to allow configuration and tuning for just about any application.
The design of these controllers includes an on-board high-speed DSP which provides the PID control for the various modes. Non-volatile memory provides storage of the parameters during power-off conditions.
A generous set of inputs and outputs allows the controller to handle a variety of control schemes, eliminating the need for external I/O controllers.
This module can also be configured to run the amplifier in torque mode using a +/-10VDC analog input and commutating from a motor mounted encoder.
*Tested with a Dover Revolution XLIII spindle at 7,200RPM with a single 65mm media payload.
OUTPUT CONNECTIONS
Fault
Zero Speed
Ready
At Speed**
User 1 Output**
User 2 Output**
User Analog Output
Dual D/A's for Amplifier Commutation
**Jumper selectable pull-up or open collector
INPUT CONNECTIONS
Incremental Encoder A, B and I (Single-Ended or Differential)
Analog Command (+/-10V) for Velocity or Torque
Hall Sensors
Enable
Direction
Reset
Safety Interlocks (can also be used as Limit +/-)
3 General Purpose User Inputs
1/2 Axis Encoder or Clock Input for Following Mode
RS-232 Serial Interface
COMMUTATION
3-Phase Sinusoidal, +/-10VDC using Command A & B
Trapezoidal Start-up, Sinusoidal Running
PID UPDATE RATES
50kHz Commutation Update (Torque Loop)
5kHz Velocity Loop Update
500Hz Position Loop Update
INDICATORS
7 LED's for System Status and Output States
JUMPER SETTINGS
Encoder Termination Selection
External/Local Power for Opto-isolators
Opto/Non-opto Isolation for Frequency Input
ACCELERATION/DECELERATION PROFILES
Linear
S-Curve (Programmable Jerk)
POWER REQUIREMENTS
+/-15VDC, 0.1 Amps
+5VDC, 0.25 Amps
OPTIONS
Breakout Board for 2mm 50 pin Ribbon Cable(Compatible with MFM BDC-610 and MCS LA2000)
COMMAND EXAMPLES
RUN - Enable and Run in Velocity Mode
STOP - Stop Motor
ENABLE - Enable Motor
FAULT? - Query Fault Status
DIMENSIONS
4.36 x 4.00 x 0.90 (L x W x H) inches
ENVIRONMENTAL LIMITS
70° C Maximum Heat Sink Temperature
-40° C to 85° C Storage
5 - 95% Relative Humidity, Non-condensing
STANDARD FEATURES
- Low velocity jitter controller for air-bearing spindles
- Frequency-locked Velocity Mode
- Compatible with industry standard controllers
- Adjustable PID parameters
- Positioning to within one encoder count
- Sinusoidal commutation
- Encoder start-up, no hall sensors required
- No encoder alignment required for commutation
- Non-volatile storage of all system parameters
- Serial user interface for programming/monitoring
- Simple, easy to use command set
- Small form factor with high density connector
- Generous set of optically isolated I/O's
- Field programmable for easy upgrades
- Friendly built-in user interface simplifies setup
- Analog Torque Mode for use with other controllers
- Frequency following mode (1/2 Axis)
- Dual 16-bit DAC outputs
- 32-bit position counter
- 25 MHz encoder bandwidth