Product Introduction

Model Interpretation

• 1SBP: ABB AC31/Procontic CS31 series controller prefix.

• 260010: Base model code for 07KR51 basic unit.

• R1001: Hardware revision (U3.6/Q3.3/P30 variants).

• 07KR51: Commercial designation for AC31 basic unit with 8DI/6RelayDO.

Technical Parameters

• Series: ABB Advant Controller 31 (AC31).

• Inputs: 8 × 24 V DC digital inputs, sink/source compatible, 5 mA per channel.

• Outputs: 6 × relay outputs, rated 2 A @ 24 V DC / 120 V AC / 230 V AC.

• Power Supply: 24 V DC ±10%, 5 W (without expansion) / 10 W (with expansion).

• Processor: High‑speed 400 KHz core; 64 KB battery‑buffered memory.

• Counters: 2 × hardware high‑speed counters (up to 5 kHz).

• RTC: Integrated real‑time clock for time stamping and scheduling.

• Operating Temperature: 0 °C to +55 °C; storage −40 °C to +70 °C.

• Protection Class: IP20 (cabinet mounting).

• Mounting: Standard DIN rail or screw mounting.

• Dimensions: 152 mm × 127 mm × 152 mm; weight approx. 0.5 kg.

• Certifications: CE, UL; manufactured in France/Sweden.

Interface and Communication Configuration

• I/O Terminals: Screw terminals for 8 inputs, 6 relay outputs, and common power terminals.

• Programming Port: RS‑232 for programming, ASCII, or Modbus RTU communication.

• System Bus: Integrated CS31 (RS‑485) bus, supports up to 31 remote I/O devices (total ~1000 I/O points).

• LED Indicators: PWR, RUN, ERR, and channel‑status LEDs for diagnostics.

Core Functions

• Integrated Logic Control: Combines 8 digital inputs and 6 relay outputs for direct connection to sensors, switches, and actuators.

• Deterministic Communication: CS31 bus enables long‑distance, high‑speed data exchange with remote I/O without reducing CPU scan performance.

• High‑Speed Counting: Two hardware counters handle pulse counting and frequency measurement for motion/process applications.

• Data Retention: Battery‑buffered memory preserves user program and data during power loss.

• Diagnostics & Status: Channel‑level fault detection and LED indication for fast troubleshooting.

Application Scenarios

• Factory automation: Small production lines, assembly machines, and material handling equipment.

• Building & HVAC: Chiller plants, air handling units, and environmental monitoring systems.

• Water & wastewater: Pump control, valve sequencing, and level/flow monitoring.

• Infrastructure: Lighting control, access systems, and distributed utility monitoring.

• OEM machinery: Packaging, textile, and plastic processing equipment as a compact PLC core.

Operation and Maintenance Instructions

• Installation: Mount vertically on DIN rail; maintain ≥50 mm clearance top/bottom for cooling; avoid vibration and direct moisture.

• Wiring: Use AWG 14–24 copper wire; tighten terminals to 0.8 N·m; verify 24 V DC polarity and relay‑load voltage ratings.

• Configuration: Program via ABB AC31GRAPH or 907AC1131 software; set I/O parameters, communication protocols, and counter functions.

• Maintenance: Inspect terminal tightness and LED status quarterly; keep enclosure clean and free of dust/corrosive gases.

• Safety: Disconnect power before servicing; do not operate with open covers or damaged wiring.