ABB DSSR122 4899001-NK
Industrial Safety Relay Module
Designed for fail-safe control in high-risk environments.
🚨 KEY FEATURES
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Feature
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Detail
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|---|---|
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Safety Integrity Level
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SIL 3 (IEC 61508) / PL e (ISO 13849-1)
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Channels
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Dual-channel monitoring (2 x Safe Digital Inputs)
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Response Time
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<15 ms for emergency shutdown
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Voltage Range
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24 V DC (±10%)
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Contact Configuration
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2 NO (Normally Open) / 1 NC (Normally Closed) safety outputs
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Operating Temp
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-25°C to +60°C (-13°F to +140°F)
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Protection Rating
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IP20 (enclosed panel mounting recommended for harsh environments)
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⚙️ TECHNICAL SPECIFICATIONS
Inputs
- Safe Digital Inputs: 2 channels, 24 V DC (compatible with NAMUR sensors, emergency stops, and safety interlocks).
- Diagnostic Inputs: Monitors external device health (e.g., contactor feedback).
Outputs
- Safety Outputs:
- 2 NO relays (5 A, 250 V AC)
- 1 NC relay (3 A, 24 V DC)
- Auxiliary Outputs: Non-safety status signals for PLC integration.
Compliance & Certifications
- Standards: IEC 62061, ISO 13849-1, UL 508.
- EMC: Immunity to industrial noise (EN 61000-6-2).
🔧 FUNCTIONAL CAPABILITIES
1. Fail-Safe Operation
- Dual-channel cross-monitoring detects short circuits, wire breaks, and contact welding.
- Auto-reset/Manual reset modes configurable via DIP switches.
2. Diagnostic Intelligence
- LED Status Indicators: Real-time feedback for power, input states, and faults.
- Error Codes: Stored in non-volatile memory for root-cause analysis.
3. Flexible Integration
- Compatible with ABB AC500 PLCs, Safety PLCs, and third-party systems.
- Daisy-chain multiple relays for scalable safety networks.
4. Simplified Wiring
- Spring-clamp terminals for tool-free installation.
- Plug-in design reduces maintenance downtime.
🏭 TYPICAL APPLICATIONS
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Industry
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Use Case
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Safety Function
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|---|---|---|
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Robotics
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Collaborative robot (cobot) emergency stop
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Halts motion on human intrusion
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Manufacturing
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Press brake safety interlocks
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Prevents accidental activation
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Energy
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Wind turbine access control
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Locks turbines during maintenance
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Packaging
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Conveyor jam detection
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Triggers shutdown to prevent damage
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🛡️ SAFETY & INNOVATION
Why DSSR122 Stands Out
- Cross-Compatible: Works with ABB’s SafeMove2 for robot safety zones.
- Compact Design: 22.5 mm width saves control panel space.
- Cybersecurity: Tamper-proof firmware with secure boot.
📊 COMPARATIVE ADVANTAGE
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Parameter
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Generic Competitor
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|---|---|---|
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Safety Level
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SIL 3 / PL e
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SIL 2 / PL d
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Response Time
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15 ms
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30 ms
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Diagnostics
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Advanced (LED + memory)
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Basic LED only
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Wiring
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Tool-free spring clamps
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Screw terminals
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🔌 INTEGRATION GUIDE
- Mounting: DIN rail (EN 60715) with 22.5 mm spacing.
- Wiring: Use shielded cables for noise-prone environments.
- Configuration: Set reset mode (auto/manual) via DIP switches.
- Testing: Validate with ABB’s Safety Builder software.
📌 WHY CHOOSE DSSR122?
- Ultra-Fast Response: Minimizes risk in critical scenarios.
- Proactive Maintenance: Diagnostics extend system lifespan.
- Global Support: Backed by ABB’s 24/7 technical service network.
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