ABB DSAO120 3BSE018293R1 S100 Series Analog Output Module
Manufacturer: ABB
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Part Number: DSAO120
Condition：New with Original Package
Product Type: Analog Output Modules
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB DSAO120 S100 Series Analog Output Module
Configured for precision analog control execution within ABB Advant OCS and Master control architectures, the ABB DSAO120 (3BSE018293R1 Analog Output Module) delivers direct physical signal conversion across 8 independent channels. It translates internal digital control values into precise voltage (-10 V to +10 V, 0 to 10 V) or current (0 to 20 mA, 4 to 20 mA) analog outputs to drive external field actuators, valves, and variable frequency drives.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DSAO120 (Part Number: 3BSE018293R1) |
| Brand | ABB |
| Origin | Sweden / Germany (Standard S100 Production) |
| Weight | 0.372 kg |
| Dimensions | 27 mm x 234 mm x 324 mm (H x W x D) |
| Operating Temp | -20 deg C to +60 deg C |
| Power Consumption | <10 W (Nominal 24 VDC Power Supply) |
| System Compatibility | ABB Advant OCS / Master (S100 I/O Series) |
| Number of Channels | 8 independent analog outputs |
| Resolution & Accuracy | 16-bit resolution, accuracy within +/-0.5% |
| Response Time | <2 us |
| Isolation | Channel-to-channel galvanic isolation |
| Protection Class | IP20 |
| Communication Protocols | Profibus DP, FOUNDATION Fieldbus |
Backplane Bus Communication Velocity & Deterministic Output Execution
The module interfaces directly with S100 I/O backplane racks, leveraging deterministic network communication velocity to update analog output values without control cycle jitter. Integrated firmware flash compatibility allows seamless integration with master controller task scans, while robust I/O density scaling manages multi-channel loop outputs simultaneously. Galvanic isolation circuits protect internal controller logic by breaking ground loops and suppressing high-frequency electromagnetic noise originating from field actuator loops.
Frequently Asked Questions
Q: How does the DSAO120 maintain signal stability across high-noise industrial environments?
A: Every channel features individual galvanic isolation, which electrically decouples field actuator loops from the internal S100 backplane bus and prevents common-mode noise propagation.
Q: Can the module be inserted or removed from the rack while the system is powered on?
A: Hot-swapping S100 I/O modules requires strict adherence to system-level safety protocols; engineers must isolate external 24 VDC loop power and rack bus power beforehand to prevent arcing across backplane edge connectors.
Q: How are channel-level configuration ranges adjusted between current and voltage modes?
A: Output type selection and scaling are configured through system software parameters during controller configuration, eliminating the need for physical hardware jumper modifications.
Field Installation Guidelines
- Power down the S100 I/O subrack and disconnect external 24 VDC loop power supplies prior to handling or installing the module.
- Align the circuit board edges precisely with the subrack card guides, sliding the assembly inward until the rear connectors seat firmly into the backplane motherboard.
- Secure the module using the integrated front panel locking screws to withstand continuous industrial vibration.
- Terminate field actuator signal wires to the corresponding terminal blocks using shielded twisted-pair cables.
- Bond cable shields directly to the cabinet grounding bar at the entry point to preserve galvanic isolation integrity and suppress electromagnetic interference.