ABB 5735175-C

Description

Product Description

The ABB 5735175-C is a programmable relay or smart control unit, a versatile and compact automation component designed to replace traditional relay and timer panels. This device, the ABB 5735175-C, belongs to the ABB EASY product family and is engineered to handle a wide range of simple control, logic, and timing tasks. It provides a cost-effective bridge between basic relay logic and a full-scale PLC. The core function of the ABB 5735175-C is to execute user-defined logic programs, managing sequences, interlocking, and timing for machines and small processes. Its intuitive interface and graphical programming make the ABB 5735175-C an accessible solution for electricians and technicians to implement automation without complex software.

Product Parameters and Specifications

• Product Family: Part of the ABB EASY series of programmable relays/control relays.

• I/O Capacity: Features a built-in number of digital inputs and relay outputs. A typical configuration might include 12 digital inputs (24V DC) and 8 relay outputs (e.g., 230V AC, 5A).

• Power Supply: Operates on a standard voltage range, commonly 24V DC or 110-240V AC.

• Programming: Uses function block diagram (FBD) or ladder logic (LL) programming via the integrated LCD display and push-button keypad or with optional PC software (EASY-SOFT).

• Memory: Contains non-volatile memory for storing the user program, parameters, and real-time clock data.

• Display: Includes an integrated LCD for displaying status, values, and diagnostic messages, and for on-device programming.

• Communication: May include a communication port (e.g., for connecting to HMI panels, other EASY units, or for PC programming).

• Mounting: Designed for standard DIN-rail mounting in control cabinets.

Advantages and Key Features

1. User-Friendly Programming: The standout advantage of the ABB 5735175-C is its ease of use. Programming can be done directly on the device using the display and navigation keys, using clear function blocks for timers, counters, logic gates, and more.

2. Cost-Effective Automation: It offers a significantly more flexible and feature-rich solution than a panel of individual relays, contactors, and timers, while being more economical and simpler than a small PLC for straightforward applications.

3. Compact and Integrated Design: The ABB 5735175-C combines power supply, CPU, I/O, display, and operator interface into a single, space-saving unit, drastically reducing panel wiring and footprint.

4. Real-Time Clock and Weekly Timer: Built-in real-time clock functions allow for time-based control (e.g., scheduling pumps, lighting), a feature that typically requires additional hardware in relay-based systems.

5. Onboard Diagnostics and Visualization: The display provides immediate feedback on I/O status, current values, and fault conditions, simplifying commissioning and troubleshooting.

Application Cases in Various Industries

• Building Automation: Control of lighting, ventilation, and heating systems based on time schedules and occupancy sensors.

• Material Handling: Managing simple conveyor sequences, sorting gates, and palletizer infeed/outfeed logic.

• Commercial/Industrial Machinery: Controlling standard machines like packaging machines, small presses, car wash systems, and irrigation controllers.

• Infrastructure: Automation of pump control for water features, control of access gates, and management of garage door systems.

• Retrofitting Legacy Panels: Direct replacement for complex hard-wired relay and timer cabinets, adding flexibility and diagnostic capabilities.

Comparison with Competing Products

Compared to other programmable relays (e.g., Siemens LOGO!, Schneider Electric Zelio) and entry-level micro-PLCs (e.g., Siemens S7-1200 BASIC, Allen-Bradley Micro800), the ABB 5735175-C holds a specific position:

• Ease of Use vs. Micro-PLCs: The ABB EASY series is generally considered more accessible for personnel familiar with relay diagrams but not with PC-based IEC programming software. Its on-device programming is a key differentiator.

• Display and Interface: Often features a larger or more intuitive built-in display and interface compared to some basic programmable relays, making standalone operation easier.

• Position in the Market: It competes most directly with the Siemens LOGO! The choice often comes down to user preference for the programming philosophy, specific function block libraries, and local distributor support.

• Limited Expandability: Unlike modular micro-PLCs, the I/O count of the ABB 5735175-C is fixed. It is ideal for compact, defined tasks but not for systems expected to grow or require special communication protocols.

Selection Suggestions and Precautions

1. Accurately Count I/O Requirements: List all sensors (inputs) and actuators (outputs) for your application. Ensure the model you choose, like the ABB 5735175-C, has a sufficient number and type (e.g., relay vs. transistor output) of I/O points, including spare capacity (typically 10-20%).

2. Verify Output Relay Ratings: Pay close attention to the relay output specifications (switching voltage and current, both AC and DC). Ensure they can handle the inrush and steady-state currents of your loads (contactors, solenoids, lamps).

3. Consider the Programming Method: Decide if you will program on the device or use the PC software (EASY-SOFT). For more complex programs, the PC software is highly recommended for easier design, documentation, and simulation.

4. Power Supply Quality: Provide a clean, well-regulated power supply. Noise and voltage spikes on the supply line can cause resets or erratic behavior in the ABB 5735175-C.

5. Use Surge Suppression for Inductive Loads: Always use RC snubbers or metal-oxide varistors (MOVs) across the coils of contactors, solenoids, or relays connected to the outputs to protect the internal relay contacts from arcing and premature failure.

6. Backup Your Program: Once programmed and tested, always create a backup of the program file or note down the settings. This is crucial for quick recovery in case of device failure.

7. Understand Limitations: Recognize that the ABB 5735175-C is not a full PLC. It is not suited for high-speed counting, complex analog PID loops, or extensive networking. For such needs, evaluate a micro-PLC.

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