Description
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | A413305 AOR4C |
| Manufacturer | Neles Automation |
| Product Type | Analog Output Module |
| Output Channels | 4 channels |
| Standard Output Signal | 4–20 mA |
| Supported Output Type | Current loop, system configuration dependent |
| Channel Isolation | Yes |
| Backplane/System Bus | Compatible with legacy Neles/Valmet automation racks |
| Power Supply | 24 V DC, system/backplane dependent |
| Diagnostic Features | Channel status and fault indication |
| Mounting Method | Rack/backplane installation |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Rating | 5–95% RH, non-condensing |
| Country of Origin | Finland |
Main Features and Advantages
Purpose-built analog output functionality
The Neles Automation A413305 AOR4C is designed specifically for analog output control rather than general-purpose input/output. This specialization makes it well suited to driving control valves, I/P positioners, analog indicators, and variable-frequency drives. By converting controller setpoints into proportional output signals, the module helps maintain process stability across demanding control applications.
Four independent output channels
With four analog output channels, the Neles Automation A413305 AOR4C allows one module to support multiple control loops within the same automation rack. This multi-channel design reduces the number of required modules and helps optimize cabinet space while maintaining a clear separation between different process signals.
Isolation for improved signal integrity
Electrical isolation between the field side and system electronics helps protect the control system from ground loops, voltage transients, and field-side faults. In electrically noisy industrial environments, this isolation contributes to more stable output performance and reduces the risk of control disturbances affecting connected equipment.
Reliable performance in continuous processes
The Neles Automation A413305 AOR4C is built for the operational requirements of continuous-process industries. Its industrial-grade construction, controlled operating temperature range, and field-compatible signal interface make it suitable for long-term deployment in process control cabinets and automation enclosures.
Integrated status and diagnostics
Onboard status indication supports faster fault identification during commissioning and routine maintenance. Technicians can use these indicators to verify module activity, identify channel-related issues, and reduce the time required to restore normal control loop operation.
Practical legacy system spare
Because the Neles Automation A413305 AOR4C is fully aligned with legacy Neles/Valmet module conventions, it is an important spare part for operational plants. Keeping a verified replacement module available helps maintenance teams respond quickly to analog output failures and reduces unplanned downtime.
Application Field
The Neles Automation A413305 AOR4C is primarily used in process automation environments where controllers must deliver continuous analog control signals to field equipment. Its most common applications involve regulating control valves, valve positioners, dampers, and actuators that rely on 4–20 mA current loops. In these systems, the module provides the interface that translates digital control strategies into smooth, proportional adjustments of real process variables.
Pulp and paper mills represent a major application area for the Neles Automation A413305 AOR4C. The module can support stock flow control, consistency regulation, chemical dosing, digester control, refining energy setpoints, and other analog loops that require continuous adjustment. In these facilities, stable analog output performance directly influences production quality and energy efficiency.
Power generation, energy, and utility plants also benefit from the module’s ability to support combustion control, feedwater regulation, turbine auxiliary control, and other process loops. The Neles Automation A413305 AOR4C provides the controlled output signals required to maintain safe and efficient operation of modulating field devices.
Additional applications include chemical processing, mining, minerals, water and wastewater treatment, and other continuous-process industries. In every case, the module’s value lies in its ability to maintain accurate communication between the control system and the final control elements. For plants operating legacy Neles, Metso, or Valmet automation hardware, the Neles Automation A413305 AOR4C offers a practical way to sustain existing control loops without replacing the entire automation platform.
