BIHL+WIEDEMANN BWU1569
BIHL+WIEDEMANN BWU1569
BIHL+WIEDEMANN BWU1569
BIHL+WIEDEMANN BWU1569
BIHL+WIEDEMANN BWU1569
BIHL+WIEDEMANN BWU1569
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BWU1569

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The BWU1569 is a 4 A power supply with 3-phase input (3 x 400-500 VAC) for AS-i masters in stainless steel housing, providing 30.5 VDC output for one or two fully loaded AS-i networks.
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Technical specifications for BWU1569

  • Manufacturer:
    BIHL+WIEDEMANN
  • Part Number:
    BWU1569
  • Product Family:
    BWU series
  • Interface:
    PROFIBUS
  • PROFIBUS Standard:
    IEC 61158 / IEC 61784-1
  • Baud Rates:
    9.6 KBaud to 12,000 KBaud, automatic recognition
  • DP Functions:
    Mapping of AS-i nodes as I/O data of PROFIBUS; complete diagnosis and configuration via the DP Master
  • AS-i Cycle Time:
    150 µs × (number of AS-i 3 nodes + 2)
  • AS-i Operating Voltage:
    30 V DC
  • Display:
    LCD menu, indication of AS-i addresses, error messages in plain text
  • Applied Standards:
    EN 61000-6-2, EN 61000-6-4
  • Housing:
    Stainless steel, for DIN rail mounting
  • Operating Temperature:
    0 °C to +55 °C
  • Storage Temperature:
    -25 °C to +85 °C
  • Protection Category:
    ≥ 500 V
  • Insulation Voltage:
    Solves the challenge of powering AS-i networks in harsh environments—stainless steel housing provides corrosion resistance, 4 A output powers one or two fully loaded AS-i networks, eliminating separate power supplies.
  • Weight:
    0.52 kg
  • Estimated shipping dimensions:
    8.4x7.8x12.3cm
  • Tariff Code:
    8504401500
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Connection Interfaces Safety and Compliance

Features:

  • Stainless steel housing provides corrosion resistance for AS-i power supplies in harsh industrial environments.
  • 4 A output capacity powers one or two fully loaded AS-i networks, eliminating the need for separate power supplies.
  • 3-phase 400-500 VAC input with wide operating range (340-576 VAC) ensures stable operation across varying mains conditions.
The BWU1569 is housed in a robust stainless steel enclosure, making it ideal for applications in food processing, chemical plants, and outdoor installations where standard painted metal enclosures would corrode. The IP20 protection rating provides basic dust protection while allowing sufficient airflow for cooling.

With 4 A output capacity at 30.5 VDC, the BWU1569 can power one fully loaded AS-i network (4 A) or two networks (2 A each) simultaneously, supporting the "1 Gateway, 1 Power Supply for 2 AS-i networks" configuration option. The power supply achieves 89% typical efficiency, reducing heat generation and energy costs.

The BWU1569 meets a wide range of international safety and EMC standards, including EN 50178 for electronic equipment in power installations, EN 60204-1 for electrical equipment of machinery, UL 508 for industrial control equipment, and CSA C22.2 for Canadian standards. EMC compliance with EN 61000-6-1 through -4 ensures immunity to electromagnetic interference and limits emissions to acceptable levels.

The BWU1569 BIHL+WIEDEMANN 3-Phase AS-i Power Supply may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

BIHL+WIEDEMANN BWU1569 3-Phase AS-i Power Supply Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
BIHL+WIEDEMANN BWU1569 3-Phase AS-i Power Supply Specs

General

  • Manufacturer BIHL+WIEDEMANN
  • Model BWU1569
  • Condition New Original ready stock
  • Product Family BWU1652,BWU1833,BWU2381,BWU2164
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Factory Automation: Used to integrate digital and analog signals, optimizing machine control and system monitoring processes.
  • Material Handling and Drive Control: Widely used in conveyor belt systems, automated guided vehicles (AGVs), and various industrial drive solutions when used with AS-i cables.
  • Harsh Industrial Environments: Thanks to its stainless steel housing and robust design, the BWU1569 can operate stably in environments with high mechanical stress and large temperature fluctuations (operating temperature 0°C to +55°C).
  • Fieldbus Interface: Uplink communication uses the PROFIBUS DP protocol (RS485 physical interface) for data exchange with mainstream PLCs (such as Siemens, B&R).
  • AS-i Dual Master Connection: Supports two AS-i networks and features "single power supply dual master" power supply functionality, meaning one power source can power two AS-i loops, effectively saving space and cost.
  • Diagnostic and Configuration Interface: Equipped with an RS232 interface, allowing users to configure parameters, diagnose faults, and detect duplicate addresses via Bihl+Wiedemann's official software.
  • Functional Safety Integration: Can be used as part of an AS-i safety network in conjunction with a Safety Monitor, supporting safety levels up to SIL 3 / PLe / Cat. 4.
  • Network Diagnostics: Features AS-i fault detectors and duplicate address diagnostics, enabling real-time identification of line interference, noise, or address misassignment to prevent unexpected system downtime.
  • Electromagnetic Compatibility: Complies with EN 61131-2 industrial standard, providing shock and interference resistance.
  • Network Security: Supports firmware updates and signed security software verification to address future network threats.
Description
The BWU1569 is a 4 A power supply designed specifically for AS-i masters in stainless steel housings, supporting one or two fully loaded AS-i networks. It operates on a 3-phase input voltage of 400-500 VAC (range 340-576 VAC) with 47-63 Hz frequency, drawing 0.5 A input current at 400 VAC. 

Built for industrial environments, the BWU1569 features a stainless steel housing with IP20 protection and operates at ambient temperatures from -10°C to +70°C. It includes an LED power-on indicator at the front panel and requires minimum clearance of 50 mm above/below and 15 mm left/right for proper air circulation. 

The BWU1569 meets stringent safety and EMC standards including EN 50178, EN 60204-1, UL 508, CSA C22.2, and EN 61000-6 series for electromagnetic compatibility. It features short-circuit protection, overload protection, and achieves typical efficiency of 89%. 

This power supply solves the challenge of powering AS-i networks in harsh environments where stainless steel housings are required for corrosion resistance. 
Alternative Names
BWU1891 BWU2546 BWU2775 BWU2726
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What input voltage does the BWU1569 require?
It requires 3-phase 400-500 VAC (340-576 VAC range) at 47-63 Hz, drawing 0.5 A input current at 400 VAC.
What output does the BWU1569 provide?
It delivers 30.5 VDC ±3% with adjustable output current from 0 to 4 A, suitable for powering one or two AS-i networks.
What is the operating temperature range?
The BWU1569 operates from -10°C to +70°C, with derating from 60°C to 70°C at 6 W/K.
What safety standards does the BWU1569 meet?
It meets EN 50178, EN 60204-1, UL 508, CSA C22.2, and EN 61000-6 series EMC standards.