The Parker/Compumotor AR-C is an absolute rotary encoder that captures and retains precise angular position data without requiring a homing sequence after power loss. The system pairs an encoder head with a decoder box that functions as either a standalone interface or integrated motion control element. Its absolute encoding architecture eliminates initialization delays in industrial motion applications where positional accuracy and system reliability demand protection against power interruptions.
Technical Specifications
• Encoder Type: Rotary Absolute Encoder
• Resolutions: 1024 or 16384 discrete positions per revolution (DIP switch selectable)
• Multi-Turn Capability: Up to 512 turns at full resolution
• Housing: Industry Standard Size 23 Style
• Power Input: 120 VAC
• Weight: 12 lbs per unit (including packaging)
– Interface Options
• RS-232C: 3-wire implementation (Tx, Rx, Gnd), selectable baud rates 300–9600 bps, 8 data bits, 1 stop bit, no parity
• RS-422/485 serial communication
• 16-bit Parallel (Binary or BCD output formats)
– Key Features
• Absolute position encoding eliminates startup homing procedures
• Integral power supply integrated into decoder box
• Two status LEDs for operational monitoring
• DIP switch configuration for resolution and output format selection
• Position reporting in ASCII Decimal, ASCII Hexadecimal, or Binary formats
• Rugged industrial construction
– Compatibility & Integration
The AR-C operates as a standalone interface device compatible with PLCs, host computers, and serial terminals. It integrates directly with Compumotor motion controllers and indexers. Command transmission and position queries execute via the selected communication interface—RS-232C, RS-422/485, or parallel data output—making it adaptable across legacy and current motion control architectures.
