ABB DSSB140

Description

ABB DSSB140

Product introduction

The SAFT183VMC is a high – performance safety relay module from ABB, engineered to serve as a critical component in industrial safety systems. As part of ABB’s safety automation portfolio, it is designed to monitor hazardous conditions and trigger protective actions, preventing accidents in workplaces with machinery or automated processes.

This module acts as a safety controller, continuously monitoring input signals from devices like emergency stop buttons, safety gates, and light curtains. When a hazardous condition is detected—such as an activated emergency stop or an open safety gate—the SAFT183VMC immediately activates its safety outputs to shut down machinery or isolate hazardous areas. Its compliance with strict safety standards (SIL 3, PL e) makes it indispensable in industries where worker safety is paramount, from automotive factories to packaging plants.

Core advantages and technical highlights

High safety integrity: The SAFT183VMC meets SIL 3 and PL e standards, ensuring it can reliably detect and respond to hazardous events even in complex industrial environments. In a robotic welding cell, for example, if a worker accidentally enters the protected area, the module’s 10 ms response time ensures the robot stops within milliseconds, preventing collisions. This level of safety integrity reduces the risk of fatal or serious injuries by minimizing exposure to hazards.

Flexible input/output configuration: With 8 configurable safety inputs and 4 safety outputs, the SAFT183VMC adapts to diverse safety setups. It can monitor multiple emergency stops across a production line or integrate with light curtains and safety mats simultaneously. In a food processing plant, it might monitor a safety gate on a conveyor and a light curtain at a packaging station, consolidating safety control into a single module—reducing system complexity and cost.

Rugged for industrial durability: Designed to operate in – 25°C to + 60°C temperatures, the SAFT183VMC withstands the harsh conditions of factories, warehouses, and outdoor industrial areas. Its DIN rail mounting with lockable clips ensures stability during vibrations, common in environments with heavy machinery. In a metal stamping facility with high noise and vibration, the module maintains consistent performance, avoiding false safety triggers.

Simplified integration: The SAFT183VMC integrates seamlessly with ABB’s AC 800M controllers and other automation systems via auxiliary signals. It provides diagnostic data (e.g., input status, fault codes) through LED indicators, enabling quick troubleshooting. For maintenance teams, this means faster identification of issues like a faulty emergency stop button, reducing downtime for safety system repairs.

Compliance with global standards: Certified by TÜV SÜD, UL, and CE, the SAFT183VMC meets international safety regulations. This eliminates barriers for multinational manufacturers, who can deploy the same safety module across facilities in Europe, Asia, and the Americas—ensuring consistent safety performance and regulatory compliance worldwide.

Typical application scenarios

Automotive manufacturing: In automotive assembly lines, the SAFT183VMC monitors safety gates around robotic workcells. When a gate is opened during operation, the module detects the input signal and immediately cuts power to the robot via its safety outputs. It also integrates with light curtains at conveyor transfer points, stopping the line if a worker’s hand enters the hazard zone. This dual protection ensures compliance with ISO 10218 (robot safety) and reduces accident risks in high – speed production environments.

Logistics and material handling: In warehouse automated storage and retrieval systems (AS/RS), the SAFT183VMC safeguards areas where robots interact with human workers. It monitors emergency stop buttons on forklifts and safety barriers around automated cranes. If a crane malfunctions and approaches a worker, the module triggers a safe stop, preventing collisions. Its fast response time is critical here, as AS/RS systems often operate at high speeds.

Packaging industry: In a beverage bottling plant, the SAFT183VMC controls access to high – speed filling machines. It monitors safety interlocks on machine guards—if a guard is removed during operation, the module shuts down the filling line. It also integrates with pressure sensors; if a hydraulic system exceeds safe pressure, the module activates a relief valve via its outputs, preventing equipment failure and potential injuries.

ABB DSSB140

Related model recommendations

SAFT181VMC: A compact variant with 4 safety inputs and 2 outputs, suitable for smaller safety systems like standalone machines. It shares the same safety ratings as the SAFT183VMC but with reduced channel capacity, ideal for applications like tabletop assembly stations.

SAFT283VMC: A higher – channel version with 16 inputs and 8 outputs, designed for large – scale safety systems (e.g., automotive paint shops with multiple safety zones). It offers redundant power inputs for enhanced reliability, making it a step up from the SAFT183VMC in complex setups.

CI854A 3BSE030221R1: ABB’s PROFIBUS – DP interface module. In integrated safety – automation systems, the SAFT183VMC can send diagnostic data to the main controller via the CI854A, enabling centralized monitoring of safety status across the plant.

PM864: ABB’s DCS controller. When paired with the SAFT183VMC, it creates a unified system where safety actions (e.g., machine shutdown) are coordinated with process control, ensuring safe and efficient restart after a hazard.

DI810: 16 – channel digital input module. For non – safety inputs (e.g., machine status indicators), the DI810 works alongside the SAFT183VMC, separating safety and standard signals while sharing the same control cabinet space.

Installation, commissioning and maintenance instructions

Installation preparation: Mount the SAFT183VMC on a grounded 35mm DIN rail in a NEMA 4 enclosure to protect against dust and moisture. Use twisted – pair shielded cables (0.5 – 1.5 mm²) for safety inputs/outputs, terminating shields at both ends to reduce electromagnetic interference. Verify 24 VDC power with ±15% tolerance and ensure a dedicated safety ground (separate from power ground) to avoid ground loops. Label all connections clearly to match the safety circuit diagram.

Commissioning: Power on the SAFT183VMC and verify LED indicators show normal operation (green power light, no fault lights). Test each safety input by activating devices (e.g., pressing an emergency stop button) and confirming the corresponding output deactivates within 10 ms (use an oscilloscope for accuracy). Perform a full system test: simulate a hazardous event (e.g., open a safety gate) and ensure all connected machinery stops safely. Record test results in a safety log for compliance audits.

Maintenance suggestions: Inspect monthly for loose terminals or corrosion, especially in humid environments. Clean the module with a dry cloth to remove dust. Annual checks include verifying safety output contacts (measure resistance with a multimeter; replace if >100 mΩ). Test input response time yearly using a signal generator to ensure it remains ≤10 ms. For faults (e.g., red fault LED), refer to the user manual’s troubleshooting guide—common issues include loose wiring or incompatible input devices. Use only ABB – approved spare parts (e.g., terminal blocks) to maintain safety integrity.

Service and guarantee commitment

ABB backs the SAFT183VMC with a 5 – year warranty, reflecting confidence in its durability for safety – critical applications. During this period, ABB replaces defective units and covers labor for warranty – related repairs. The global technical support team is available 24/7 to assist with installation, troubleshooting, or compliance questions, with average response times under 1 hour for critical safety issues.

Customers gain access to online resources, including safety circuit design guides, certification documents, and firmware updates, via ABB’s Safety Automation Portal. Optional on – site services include safety system validation (to ISO 13849) and operator training, ensuring teams maximize the SAFT183VMC’s safety capabilities. ABB guarantees spare parts availability for 10 years post – production, minimizing long – term risks of safety system downtime.