The ABB DSAO120A is a modern analog output module for precise industrial control. This board generates accurate command signals for actuators, valves, and drives in your system. Consequently, it ensures reliable execution of complex control strategies in demanding environments.
Core Function and Signal Generation
This advanced module excels at converting digital setpoints into stable analog outputs. It delivers both voltage and current signals with exceptional accuracy and speed. Moreover, the DSAO120A integrates enhanced diagnostic features for proactive system health monitoring.
Its robust design provides reliable isolation between each output channel and the system. Therefore, it effectively prevents ground loops and minimizes electrical noise interference. Users configure this module efficiently through ABB’s dedicated engineering tools.
Detailed Physical and Electrical Specifications
The DSAO120A features a compact form factor for high-density system integration. Below are its comprehensive technical specifications for precise engineering and planning.
Comprehensive Technical Specifications:
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Product Series | DSAO Series |
| Model Number | DSAO120A |
| Module Category | Analog Output Board / I-O Module |
| Number of Channels | 8 isolated output channels |
| Output Signal Ranges | 0-20 mA, 4-20 mA, 0-10V, ±10V |
| Output Resolution | 16-bit Digital-to-Analog Converter (DAC) |
| Typical Accuracy | ±0.05% of full scale at 25°C |
| Channel Isolation Voltage | 1500 V AC (test voltage) |
| Load Compatibility | Up to 750 Ω for current outputs |
| Update Rate per Channel | 1 ms (typical for all channels) |
| Power Supply Requirement | +24 V DC (from system backplane) |
| Power Consumption | 4.2 W (maximum under full load) |
| Operating Temperature Range | -20°C to +70°C |
| Storage Temperature Range | -40°C to +85°C |
| Relative Humidity | 5% to 95% non-condensing |
| Dimensions (H x W x D) | 185 mm x 25 mm x 120 mm |
| Module Weight | 0.62 kg |
| Primary Component Count | 8 DACs, 8 isolation amplifiers, 1 controller ASIC |
| Electrical Connection | High-density removable terminal block |
| Diagnostic Features | Wire break, short circuit, overload detection |
| MTBF (Calculated) | >800,000 hours |
| Replacement Role | Modern upgrade for legacy DSAO110 modules |
Application and System Integration
This module is vital for controlling final elements in process and manufacturing industries. It drives equipment like proportional valves, I/P transducers, and analog recorders with precision. Furthermore, the ABB DSAO120A often pairs with a DSTA 171 base unit for a complete solution.
Details
| Weight | 0.595 kg |
|---|---|
| Dimensions | 18 × 225 × 209.7 mm |
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