SEW Drive System (Compliant with ABNT NBR 17049) Product Description
The vehicle automatic sliding door drive system of SEW, which complies with ABNT NBR 17049, is a vehicle-mounted electric door drive solution specially developed by SEW-EURODRIVE for the Brazilian market and meeting the mandatory safety standards of ABNT NBR 17049:2022. It is applicable to M1/M2/N1/N2 type commercial vehicles and buses.

I. Standards and Certifications

Standard Number: ABNT NBR 17049:2022

Standard Name: Automatic Sliding Door Drive System for Road Vehicles - Safety and Signal Requirements

Applicable Vehicle Types: M1 (≤ 8 seats), M2 (9–16 seats), N1 (≤ 3.5t), N2 (3.5–12t)

Certification Body: INMETRO (Brazilian National Institute of Metrology, Quality and Technology)

Certification Status: INMETRO certification is valid, allowing for legal entry into the Brazilian market

Replacement / Compatibility: Also meets ISO 61507, ECE R11, and FMVSS 401 international safety standards

II. Product Positioning and Models

2.1 Core Model (Specific to NBR 17049)

MDM61B-NBR: Vehicle Servo Drive Controller (Main Control Unit)

DRS71S2/AS-NBR: 12V/24V DC Brushless Door Drive Motor

ABG11A-NBR: Vehicle-specific Operation Panel (with Brazilian Standard Sound and Light Indicators)

SKS20-NBR: Anti-Closure Sensor + Position Encoder Assembly

KMT1-17049: Gearbox + Synchronous Belt Transmission Mechanism (Low Noise, Long Life)

2.2 Model Meaning (Example: MDM61B-NBR)

MDM: MOVIDRIVE Vehicle-specific Series

61B: High-performance control platform

NBR: Compliant with ABNT NBR 17049 Brazilian Certification Version

III. System Composition (Complete NBR 17049 Solution)

Drive Controller: MDM61B-NBR (12V/24V)

Drive Motor: DRS71S2/AS-NBR (0.15–0.55kW, DC Brushless)

Transmission Mechanism: KMT1 Planetary / Synchronous Belt Reducer (Silent, Anti-Reversal)

Safety Sensors:

Full Door Anti-Closure Pressure Strip (SKS20-NBR)

Hall Position Encoder

Dual Anti-Closure Detection for Current / Torque

Operation Unit: ABG11A-NBR Panel + Remote Control / Door Switch

Signal System: Yellow Flash Light (Operation), Red Light (Fault), Beeper (85–95dB)

IV. Core Technical Parameters (NBR 17049 Compliance)

4.1 Electrical Parameters

Power Supply: DC 12V / 24V ±20% (Vehicle Battery)

Power: 0.15–0.55kW

Control: Vector Closed Loop, Position / Torque Dual Loop Control

Protection: IP65 (Dustproof, Waterproof Splashproof, Vibration Resistant)

EMC: Compliant with Brazilian Vehicle EMC Standards

4.2 Mechanical and Safety (NBR 17049 Mandatory Items)

Opening Speed: 0.1–0.2m/s

Closing Speed: 0.1–0.15m/s

Anti-Closure Activation Deceleration: ≤0.05m/s

Maximum Anti-Closure Force: ≤150N (Full Travel)

Manual Emergency Force: ≤50N (Power Failure / Fault Manual Pulling)

Operation Life: ≥50,000 Switching Cycles

Operating Temperature: -40℃ ~ +85℃

Noise: ≤60dB (Operation), 90–95dB (Anti-Closure Alarm)

4.3 Safety Functions (NBR 17049 Mandatory Requirements)

Multi-Level Anti-Closure: Pressure Strip + Current Detection + Position Monitoring Triple Protection

Fail-Safe: Door Maintains Half Open / Manual Lock State When Faulty

Driving Interlock: Prohibits Automatic Opening When Vehicle Speed >5km/h

Child Lock: Locking in Case of Incorrect Operation Inside the Vehicle

Fault Recording: Store ≥20 Fault Codes (INMETRO Requirement)

Sound and Light Signals: Yellow Flash Light for Operation, Red Light for Fault, Emergency Beeping for Anti-Closure

V. Functional Characteristics

5.1 Control Mode Automatic mode: Remote control / On-board switch for one-click door opening and closing

Manual mode: Emergency mechanical unlocking

Diagnostic mode: ABG11A panel displays parameters, status, and fault codes

Parameter copy: Drive ↔ Panel parameter backup / copying

5.2 Status Monitoring

Real-time display: Position, speed, current, temperature, anti-pinch status

Vehicle signal interface: Vehicle speed, ignition, door lock, child lock signals

Fault codes: Overcurrent, overvoltage, undervoltage, overload, sensor abnormality, anti-pinch trigger

5.3 Environmental Adaptation (Brazil-specific enhancement)

Resistant to humidity and heat, resistant to salt spray (neutral salt spray ≥ 480 hours)

Resistant to vehicle vibration (compliant with Brazilian road vibration standards)

Wide voltage, anti-reverse connection, short circuit / overcurrent protection

Six. Applicable Vehicle Models (NBR 17049 scope)

M1: SUV, MPV, van-type passenger vehicles

M2: Mid-bus, commuter vehicle, small bus

N1/N2: Van-type trucks, refrigerated trucks, service vehicles, ambulances

Special vehicles: School bus, urban logistics vehicle, welfare vehicle (wheelchair lift door)

Seven. Installation and Interfaces

Installation: Embedded on the top / side of the door

Interfaces:

Power: 12V/24V battery

Signals: Vehicle speed, door lock, ignition, child lock, switch input

Sensors: Anti-pinch, encoder, limit

Outputs: Lights, buzzer, door lock signal

Connection: Waterproof connector (IP67)

Eight. Compliance and Certification Points

INMETRO Certification: The entire system passes Brazilian mandatory certification

Marking: Product labeled with NBR 17049 + INMETRO logo

Documents: Portuguese manual, installation manual, maintenance guide, fault code table

Tests: Passed all NBR 17049 tests for anti-pinch, durability, high and low temperature, vibration, EMC

Nine. Summary of Advantages

Brazil-specific: 100% compliant with ABNT NBR 17049:2022 + INMETRO certification

Triple anti-pinch: Pressure + Current + Position, meeting ≤150N mandatory requirements

Fail-safe: Power off / fault can be manually handled, emergency force ≤50N

Vehicle-level reliability: IP65, wide temperature, vibration resistance, long life (≥50,000 times)

Complete solution: Drive + motor + sensor + control + signal one-stop supply

Global quality: SEW industrial-level design, local certification support