MeloAuto-Trusted PLC & DCS Parts Supplier
The Siemens 6ES5476-5AA11 converts digital values into continuous analog control signals. This analog output module serves the SIMATIC S5 PLC family. It drives actuators like valves, dampers, and variable speed drives with precision.
Technical specifications of Siemens 6ES5476-5AA11
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Model | Siemens 6ES5476-5AA11 |
| Product Family | SIMATIC S5 |
| Category | Analog Output Module |
| Number of Channels | 4 (four) independent outputs |
| Output Signal Types | 0 to 10V DC / 0 to 20mA (selectable) |
| Voltage Output Range | 0V to 10V DC (load ≥ 2 kΩ) |
| Current Output Range | 0mA to 20mA (load ≤ 500 Ω) |
| Resolution | 8 bits (0 to 255 digital value) |
| Conversion Time | 1.5 ms per channel |
| Accuracy | ±1% of full scale |
| Power Supply | 24V DC external |
| Current Consumption | 150 mA typical |
| Number of Components | 1 PCB, 4 output circuits, 1 front connector |
| Dimensions (L x W x H) | Approx. 12 cm x 10 cm x 4 cm |
| Weight | Approx. 0.35 kg |
| Energy Storage | None (no battery or capacitor) |
| Operating Temperature | 0°C to 60°C |
Detailed Technical Analysis
The Siemens 6ES5476-5AA11 offers four independent analog output channels. Each channel provides either voltage or current signals. You select the signal type through jumpers on the PCB. This flexibility suits many different field devices and actuators.
Now let us examine its conversion method. The Siemens 6ES5476-5AA11 uses an 8-bit digital-to-analog converter. It accepts integer values from 0 to 255 from your PLC program. The module then converts this number into a proportional output signal. For example, a value of 128 gives approximately 5V or 10mA output.
The module requires an external 24V DC power supply for operation. It draws only 150 milliamps under normal load conditions. The Siemens 6ES5476-5AA11 contains no batteries or capacitors at all. Therefore, you will never perform any energy storage maintenance on this unit.
Installation and Wiring Guidelines
You mount the Siemens 6ES5476-5AA11 into any standard S5 rack slot. The module uses a single 20-pin front connector for all field wiring. Each output shares a common return path through the module. Consequently, you must use an isolated power supply for each channel group.
For voltage output mode, connect a load of at least 2,000 ohms. For current output mode, keep the load resistance below 500 ohms. The Siemens 6ES5476-5AA11 achieves full accuracy within 1.5 milliseconds per channel. This speed works well for most process control loops.
Practical Applications
Engineers use this module for controlling analog actuators in continuous processes. For example, you can connect four proportional control valves to one Siemens 6ES5476-5AA11. Alternatively, use it to send speed references to multiple VFDs. This arrangement saves rack space and reduces installation costs.
Summary
To conclude, the Siemens 6ES5476-5AA11 delivers four analog outputs of 0-10V or 0-20mA. It weighs only 0.35 kilograms and requires no battery maintenance. Choose this module for reliable analog control in legacy S5 systems.