RELIANCE 57C411 resolver input module
The RELIANCE 57C411 is a resolver input module designed for the AutoMax / DCS‑5000 distributed control system. It acquires analog resolver signals from rotary shafts, conditions and converts them into high‑resolution digital position and velocity data for the controller. As a dedicated motion feedback module, it supports precise speed and position control in industrial motion applications, ensuring reliable operation in harsh environments.
Description
Product Overview
The RELIANCE 57C411 is a resolver input module designed for the AutoMax / DCS‑5000 distributed control system. It acquires analog resolver signals from rotary shafts, conditions and converts them into high‑resolution digital position and velocity data for the controller. As a dedicated motion feedback module, it supports precise speed and position control in industrial motion applications, ensuring reliable operation in harsh environments.
Model Definition
RELIANCE is the brand of industrial control products. 57C denotes the AutoMax platform I/O module series. 411 is the specific model code for a resolver input module. No suffix indicates the standard hardware version, fully compatible with AutoMax system racks and firmware.
Technical Parameters
Input: Standard resolver (sin/cos) signals
Channels: 1 independent resolver input
Resolution: 12‑bit per revolution, 2‑bit multi‑revolution counter
Isolation: 2500 V RMS between field and logic circuits
Sampling Rate: Configurable, up to 10 kHz
Power: 5 VDC @ 150 mA; 24 VDC @ 100 mA (backplane supplied)
Operating Temperature: 0°C to +60°C
Storage Temperature: −40°C to +85°C
Vibration: 1 g (10–500 Hz)
Protection: IP20
Dimensions: 102 mm × 60 mm × 30 mm
Weight: ~0.25 kg
Interface and Communication Configuration
The rear connector connects to the AutoMax backplane for power and high‑speed data communication with the main controller. The front panel features a dedicated resolver connector for field wiring and status LEDs to indicate power, signal lock, and fault conditions. All data transmission follows the AutoMax proprietary bus protocol. No additional external communication ports are provided.
Core Functions
It receives and conditions analog resolver signals to remove noise and interference. It converts conditioned resolver signals into precise digital angular position and velocity data. It provides 12‑bit single‑turn and 2‑bit multi‑turn resolution for accurate motion feedback. It monitors input signal health and reports faults such as loss of signal or overspeed to the system. It supports configurable sampling rates to match different motion control requirements.
Application Scenarios
It is used in AutoMax/DCS‑5000 based automation systems requiring high‑precision rotary motion feedback. Typical applications include steel mill drives, paper machine rolls, industrial cranes, machine tools, and packaging machinery. It is suitable for environments with electrical noise, vibration, and moderate temperature variations.
Operation and Maintenance Instructions
Power off the system before installing or removing the module. Insert the module into the designated rack slot and ensure firm backplane contact. Connect resolver cables to the front connector following wiring diagrams and check for proper shielding and grounding. Keep the environment clean, dry, and well‑ventilated. Inspect cables and connectors periodically for wear or damage. Do not disassemble or modify the module. Replace with the same model if faults occur to maintain system accuracy and reliability.
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