General Information - Advanced Digital SimpleServo SS504 User Manual

General Information

The Advanced Digital SimpleServo family of servo amplifiers is an economical solution to today's
complex motion-control needs. The SimpleServo combines a Digital Signal Processor (DSP),
controller, heat sink and power supply in one standalone, DIN-rail mountable or panel-mounted unit.
The SimpleServo can be operated as a stand-alone unit or as a digital amplifier.
The SimpleServo controls brushless motors with a high switching (carrier) frequency for virtually silent
operation. Most servomotors used today require high precision control and a smooth, sinusoidally
commutated signal. An on-board DSP provides commutation by generating the three-phase sine
wave, using feedback information from an optical encoder.
The servo will accept feedback from an encoder that includes Hall sensor feedback information. It
accepts commands from a variety of sources, including analog voltage, PWM and internal reference
signals. The control will operate in current (torque) mode, velocity mode, or position (step and
direction) mode. Upon initial start up, the motor is commutated using the hall sensors—for the first
two or three mechanical degrees of motor rotation—to map the encoder; The hall-effect information is
unnecessary thereafter.
The SimpleServo's built-in RS-232 serial communications port and servo control program,
MotionView™, make programming extremely simple. In fact, you could be up and running in less
than thirty minutes! Each SimpleServo unit is an amplifier, power supply, controller and heat sink
integrated into a single standalone package. The SimpleServo will only accept an encoder with Hall or
an encoder with hall-commutation tracks encoded on the feedback device.
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