Overview
Specification
| Parameter | Specification |
|---|---|
| Manufacturer | Rockwell Automation / Reliance Electric |
| Part Number | 57C411 |
| Product Type | Resolver Input Module |
| Compatible Systems | Reliance Automax / AutoMax II PLC Systems |
| Primary Function | Converts resolver signals to digital position and velocity data |
| Number of Channels | 1 Resolver input per module |
| Input Signal Type | Resolver sine and cosine signals |
| Input Voltage Range | 2.5 V RMS nominal |
| Reference Excitation Voltage | 7 VRMS ±5% |
| Reference Frequency | 400 Hz to 10 kHz |
| Input Resolution | Up to 16-bit position accuracy |
| Update Rate | Up to 1 kHz (typical) |
| Maximum Cable Length | 30 m (98 ft) with shielded cable |
| Backplane Voltage | 5 V DC regulated |
| Backplane Current Draw | Approx. 800 mA |
| Isolation Voltage | 500 V RMS between logic and input circuitry |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Humidity | 5% to 95% non-condensing |
| Dimensions (H × W × D) | Approx. 190 × 100 × 130 mm |
| Weight | Approx. 0.9 kg (2.0 lb) |
| Cooling Method | Natural convection |
| Mounting Type | Rack-mounted |
| Certifications | CE, UL, CSA |
| Service Life | 10+ years under normal conditions |
FAQ
It converts analog resolver feedback into precise digital signals used for position and speed control.
Q2: Is the 57C411 compatible with modern Rockwell control platforms?
Yes, it can integrate with certain hybrid systems through Reliance interface modules and conversion adapters.
Q3: What type of environments can this module operate in?
It is suitable for standard industrial environments with temperatures up to 60°C and moderate vibration.
Q4: How often does the resolver input module require maintenance?
Minimal maintenance is required beyond regular system inspections and connector cleaning.
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