This valve control module provides precise positioning for hydraulic and pneumatic actuators. It converts analog setpoints into proportional valve drive signals. The unit integrates seamlessly into SIMATIC S5 automation architectures. Its dedicated control engine ensures accurate and repeatable valve positioning.
Control Architecture and Processing Capabilities
The module features a dedicated processor for valve positioning tasks. It generates both current and voltage outputs for various valve types. The unit supports single-acting and double-acting actuator configurations. Its control algorithm ensures smooth and stable valve movements.
| Parameter | Specification |
|---|---|
| Model | 6ES5245-1AA12 |
| Control Channels | 4 independent |
| Output Signal Types | 0-20 mA, 4-20 mA, 0-10 V |
| Output Resolution | 12-bit (4096 steps) |
| Output Accuracy | ±0.25% of full scale |
| Pulse Width Modulation | 2 kHz switching frequency |
| Valve Voltage Output | ±10 V DC |
| Valve Current Output | 0-100 mA |
| Actuator Types | Proportional, servo, solenoid |
| Control Modes | Open-loop, closed-loop |
| Feedback Input | 2-wire 4-20 mA transmitters |
| Diagnostic Features | Short-circuit, open-load detection |
| Power Supply | 24 V DC ±10%, 400 mA |
| Power Consumption | 9.6 W maximum |
Physical Dimensions and Rack Mounting
This valve module measures 230 mm in height, 27 mm in width, and 210 mm in depth. Its robust housing weighs approximately 0.98 kg. You can mount the unit in any slot of the SIMATIC S5 rack. The module includes ejector tabs for convenient removal.
Output Configuration and Actuator Interface
The 6ES5245-1AA12 generates both current and voltage drive signals. It provides 0-20 mA outputs for current-controlled proportional valves. The unit also delivers ±10 V signals for servo valve applications. Each channel includes independent output scaling for different actuators.
Feedback Input and Position Monitoring
The module accepts 4-20 mA feedback from position transmitters. It compares setpoint and actual position for closed-loop control. The unit detects feedback signal loss automatically. You can configure alarm thresholds for position deviation monitoring.
Configuration and Parameter Adjustment
You can configure output ranges and control modes via STEP 5 software. The module supports independent parameter sets for each channel. You can enable or disable closed-loop control per channel. The unit also offers user-defined scaling and offset values.
Diagnostic and Status Indication
LED indicators display power and channel status information. The module detects short circuits on output connections. It also monitors for open-load conditions on all channels. A front-accessible potentiometer allows manual override for testing.
Details
| Weight | 0.12 kg |
|---|---|
| Dimensions | 120 × 80 × 3 mm |
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