Safety Architecture

Traditional Contactor

STO + SBC Solution

STO + SBC + Safety Bus

Response Speed

50-200ms Mechanical Action

<1ms STO Hardware Cut-off

<1ms STO Cut-off + <5ms Bus Transmission

Brake Control

On/Off Control, No Status Monitoring

Communication-based Brake Power Supply, Zero-current Cut-off

SBC Dynamic Braking, Real-time Torque Monitoring, Bus-coordinated Predictive Braking

Volume

Many Components, Large Footprint

Modular Design, Reduced >30%

Modular, Reduced >50%

Wiring Complexity

Point-to-point Hardwiring, Complex Wiring

Modular Wiring, Medium Complexity

Safety Bus Topology, 50% Reduction in Trailing Cables, Low Complexity

Noise

Loud Contactor Engagement Noise

≤50dB, Silent and Comfortable

≤50dB, Silent and Comfortable

Fault Diagnosis

Manual Troubleshooting, Difficult to Locate

Manual Troubleshooting, Complex to Locate

Segmented Safety and Door Lock Detection, Easy Diagnosis

Safety Certification

SIL 2

SIL 3

SIL 3

Data Recording & Traceability

Basic Fault Recording

Basic Fault Recording + Cloud Storage

Fault Recording + Full Lifecycle Cloud Data

Commissioning Time

Hardwiring Testing, Time-consuming

Quick Short-circuit Testing, Moderate Time

Software Quick Testing, Shorter Time

Total Cost of Ownership

Frequent Maintenance, More Downtime, High Cost

Less Maintenance, Still Requires Manual Inspection, Moderate Cost

Predictive Maintenance, 90% Reduction in Unplanned Downtime, Low Cost

Intelligence Level

Mechanical Control

Electronic Safety

Digital + Connected Smart Safety Ecosystem