Allen Bradley 57C411 Resolver Input Module

FAQ

Q1. What is the main function of the 57C411 module?
It is a resolver input module used to convert rotary resolver signals into digital position and speed data for industrial control systems.

Q2. What systems is it compatible with?
It is designed for Reliance Electric AutoMax PLC and DCS 5000 systems.

Q3. What type of feedback does it process?
It processes resolver feedback, typically used for precise angular position sensing of motors or shafts.

Q4. What resolution does it provide?
It provides 12-bit position resolution with additional bits for multi-turn tracking.

Q5. What do the LEDs on the module indicate?
They show system status such as feedback validity (FDBK OK), clock status (CCLK OK), direction, and power/operation status.

Q6. How is it installed?
It is installed as a plug-in module into an AutoMax rack backplane using P1/P2 connectors.

Q7. Is this module still in production?
No, it is an obsolete legacy module, but it is still available through surplus and refurbished markets.

Q8. What is the weight of the module?
Approximately 1.0–2.3 kg, depending on revision and housing configuration.