1771‑HS3CR 3‑Axis Servo Controller | Allen‑Bradley PLC‑5 IMC‑123

1771-HS3CR 3‑Axis Servo Controller – PLC‑5 IMC‑123

Allen‑Bradley / Rockwell Automation 1771‑HS3CR is a 3‑axis servo controller for the PLC‑5 series. It fits any 1771 I/O chassis. The module uses the 1771‑PS7 power supply (120V AC, 1A) and connects via 1771‑CAS 9‑pin cable. It stores AMP parameters and MML programs in 1771‑HM3A 96KB battery‑backed cartridges.

It receives encoder/resolver feedback, E‑stop status, and start signals through a 50‑pin I/O connector. The front RS‑232 port handles program upload/download and connects to T45/T50 ODS handheld pendants for debugging.

Technical Specifications

• Brand: Allen‑Bradley (Rockwell Automation)
• Model: 1771‑HS3CR
• Type: 3‑Axis Servo Controller Module
• Fuse Voltage: 120 Volts AC
• Max Input Frequency: 250 kHz differential input
• Analog Output: ±10 VDC command
• Slots: 2 slots per ES
• Module Update Period: 2 ms/axis
• Backplane Current: 1.7 Amperes
• Wiring Arm: 1771‑WA
• Pulse Capture Time: 50‑9.999 µs
• Dimensions: 3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
• Weight: ~1.36 kg
• Operating Temperature: 0 °C to 60 °C
• Humidity: 5‑95% RH (non‑condensing)
• Certifications: c‑UL, C‑TICK, CE

Key Capabilities & Diagnostics

• Encoder feedback: Isolated 10V DC, 250 kHz differential/single‑ended input.
• Diagnostic functions: Real‑time status via RS‑232, pendant‑assisted debugging.
• Noise immunity: Differential inputs ensure high interference rejection.
• Fast I/O: 50‑pin connector provides quick power and E‑stop integration.
• Linear resolution: 16‑bit analog command with high accuracy.

Installation & Maintenance

• Chassis mount: Installs in any 1771 I/O chassis.
• Wiring: Use 1771‑WA wiring arm for secure connections.
• Memory: Battery‑backed cartridge retains AMP/MML without external power.
• Maintenance: Hot‑swap capable; front RS‑232 port simplifies firmware updates.
• Compatibility: Works with PLC‑5 processors and 1771‑PS7 power supplies.

Typical Applications

• Multi‑axis motion control for packaging machinery
• Precision positioning in material handling
• Robotic arm control in assembly lines
• CNC retrofits and servo upgrade projects
• Test stands requiring synchronized axis control

Package Contents

• 1771‑HS3CR Servo Controller (main unit)
• 1771‑HM3A 96KB Battery‑Backed Memory Cartridge
• 1771‑PS7 Power Supply Module (120V AC, 1A)
• Encoder module and resolver (included)
• Optional handheld pendant (T45/T50 ODS)
• 1771‑CAS 9‑pin connecting cable

Frequently Asked Questions (FAQ)

• Q: Is the 1771‑HS3CR compatible with other PLC‑5 racks?
  A: Yes, it fits all standard 1771 I/O chassis.
• Q: Can I use it with 220V AC?
  A: No, it requires 120V AC ±10% via 1771‑PS7.
• Q: How do I upload MML programs?
  A: Use the front RS‑232 port with a standard serial cable.
• Q: Does it support incremental encoders?
  A: Yes, differential/single‑ended 250 kHz inputs.
• Q: What is the update rate per axis?
  A: 2 ms per axis – high‑speed for precise control.
• Q: Is technical support available?
  A: Yes, contact our team for pre‑ and post‑sales assistance.

Why Buy From Oiltech Controls?

• 15+ years industrial automation spare parts expertise
• Global shipment via FedEx, UPS, DHL
• Tested surplus / refurbished options with full functionality
• 12‑month warranty on all products
• Technical verification before every shipment
• Support for obsolete control systems and legacy hardware

Shipping: We ship worldwide using FedEx, UPS, or DHL – tracking provided.

Warranty: 12 months against defects in material and workmanship.

Contact Information
info@oiltechcontrols.com
+86 158 8020 0923 (WhatsApp)

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