Process Control & Signal Conditioning Solution — BACHMANN AO202/SI Analog Output Module
Where This Product Is Used
The BACHMANN AO202/SI is an analog output module engineered for demanding industrial environments where precise signal generation and process control are critical. Typical deployment scenarios include:
- Process Automation & DCS Integration: Drives control valves, variable-speed drives, and actuators in oil & gas, chemical, and water treatment plants via 4–20 mA or 0–10 V analog signals.
- Wind Turbine Control Systems: BACHMANN is a leading supplier to the wind energy sector; the AO202/SI is widely deployed in turbine pitch and yaw control cabinets.
- Power Generation & Grid Infrastructure: Used in generator excitation control and load-dispatch systems requiring high-resolution analog setpoints.
- Machine Tool & Motion Control: Provides analog reference signals to servo drives and spindle controllers in CNC machining centers.
- Building Automation (HVAC): Controls damper actuators, chiller setpoints, and variable air volume (VAV) systems in large commercial facilities.
- Test & Measurement Rigs: Generates precise analog stimuli for hardware-in-the-loop (HIL) and factory acceptance test (FAT) benches.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | AO202/SI |
| Manufacturer | BACHMANN Electronic GmbH |
| Module Type | Analog Output Module |
| Output Channels | 2 (isolated) |
| Output Signal Range | 4–20 mA / 0–20 mA / 0–10 V (configurable) |
| Resolution | 16-bit |
| Channel Isolation | SI (Safe Isolation) — channel-to-channel & channel-to-bus |
| Bus Interface | BACHMANN M1 backplane bus |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -25 °C to +70 °C |
| Supply Voltage | Via M1 backplane (24 V DC) |
| Protection Class | IP20 |
| Mounting | BACHMANN M1 rack / DIN rail via carrier |
| Weight | ~100 g |
Note: Specifications are reference values. Always verify against the official BACHMANN AO202/SI datasheet for your application.
Why Engineers Specify This Model
- Safe Isolation (SI) Architecture: The /SI suffix denotes reinforced galvanic isolation between each output channel and the backplane bus, eliminating ground-loop interference in multi-drop analog wiring — a critical requirement in high-noise industrial environments.
- 16-Bit Resolution: Delivers 65,536 discrete output steps, enabling sub-milliamp setpoint accuracy for precision flow control and positioning applications.
- Dual-Channel Density: Two independently isolated outputs per module reduce rack space and wiring cost compared to single-channel alternatives.
- Native M1 Ecosystem Integration: Plug-and-play compatibility with BACHMANN M1 CPUs (MPC240, MPC265, MPC270) and SolutionCenter engineering software — no external signal conditioners required.
- Proven Wind Energy Pedigree: BACHMANN’s M1 platform is the de-facto standard in multi-megawatt wind turbine controllers; the AO202/SI carries the same reliability heritage.
- Configurable Output Mode: Field-selectable current/voltage output mode allows a single module SKU to serve multiple application types, simplifying spare-parts inventory.
Complete System Bill of Materials
The AO202/SI operates within the BACHMANN M1 modular control platform. A typical system BOM includes:
- BACHMANN M1 CPU Module (e.g., MPC240 / MPC265 / MPC270)
- BACHMANN M1 Rack / Backplane (e.g., MR-E series)
- BACHMANN AO202/SI — Analog Output Module (this item)
- BACHMANN AI204/SI — Analog Input Module (companion)
- BACHMANN DI212 / DO216 — Digital I/O Modules
- BACHMANN MX213 / MX220 — Communication Modules (Profibus, EtherCAT)
- 24 V DC DIN-rail Power Supply (Weidmüller, Phoenix Contact, or equivalent)
- Shielded twisted-pair analog wiring (per IEC 60446)
- BACHMANN SolutionCenter Engineering Software License
Contact support@konmask.com for complete system quotations and compatibility verification.
Compliance & Industry Standards
- CE Marking — EU Low Voltage Directive & EMC Directive compliant
- IEC 61131-2 — Programmable controllers: equipment requirements and tests
- IEC 61000-4 series — EMC immunity (ESD, EFT, surge, conducted RF)
- EN 50178 — Electronic equipment for use in power installations
- UL / cUL Recognition — (verify current listing status with BACHMANN)
- RoHS 2 (2011/65/EU) — Restriction of hazardous substances compliant
- GL / DNV Type Approval — Marine & offshore variant availability (confirm with manufacturer)
Quality Assurance & Sourcing
Konmask.com sources industrial automation components through verified supply channels with multi-stage quality control:
- Authenticity Verification: Each unit is inspected against manufacturer markings, date codes, and label integrity before dispatch.
- Functional Pre-check: Modules are bench-tested for communication response and output signal integrity where test fixtures are available.
- Traceability: Lot numbers and serial numbers are recorded for full supply-chain traceability.
- Packaging: Shipped in anti-static ESD bags with foam cushioning inside double-wall cartons — compliant with IEC 61340-5-1 ESD protection requirements.
- Warranty: 90-day return-to-base warranty against manufacturing defects. Extended warranty available on request.
How to Source This Part
- Add to Cart — Click the purchase button above to place an order directly.
- Request a Quote — For volume orders (>3 units), OEM projects, or system-level BOM sourcing, email support@konmask.com with your quantity and delivery requirements.
- Verify Compatibility — Share your existing M1 rack configuration and CPU firmware version; our technical team will confirm module compatibility before shipment.
- Lead Time — In-stock units ship within 1–3 business days. Out-of-stock items are sourced within 7–21 business days depending on supply availability.
- Export & Customs — We handle export documentation (commercial invoice, packing list, HS code 8537.10) for international shipments. DDP and DAP Incoterms available.
Application-Specific FAQ
Q: Is the AO202/SI compatible with BACHMANN M1 racks from older system generations?
A: The AO202/SI is designed for the BACHMANN M1 backplane bus. Compatibility with specific rack generations depends on firmware and hardware revision. Contact us with your rack part number for confirmation.
Q: Can the output be configured for 0–10 V voltage mode instead of current mode?
A: Yes. The AO202/SI supports configurable output modes (current and voltage) via SolutionCenter software parameterization. No hardware modification is required.
Q: What is the maximum load resistance for the 4–20 mA output?
A: Typically 500 Ω at 24 V supply. Refer to the official BACHMANN AO202/SI datasheet for precise load compliance voltage specifications.
Q: Is this module suitable for SIL-rated safety applications?
A: The standard AO202/SI is not a SIL-certified safety module. For functional safety applications, consult BACHMANN’s SafetyController product line.
Q: Do you supply the matching analog input module AI204/SI?
A: Yes. Contact support@konmask.com to request availability and pricing for companion I/O modules.
Q: Can Konmask provide installation and commissioning support?
A: We provide remote technical guidance for module installation and SolutionCenter configuration. On-site support is available through our partner network — contact us for details.
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