Skip to main content
SearchRequest review

Engineering resources · FAQ

Industrial automation questions, answered plainly

Choose components from the application requirements, not the brand or category name alone. Send the exact model, voltage, I/O or motor data, protocol, quantity and target date. Cross-brand options use the wording candidate replacement — subject to engineering review. Availability, lead time, documents, warranty and delivery method are confirmed for the exact SKU and order during the RFQ process.

Choosing components

How do I choose the right PLC for my application?

Start with the required digital and analog I/O, communication protocols, scan or motion needs, program size, expansion plan, environment and maintenance tools. A model name without this context is not enough. Use the PLC product records to identify published options, then send the application details for review.

What information is needed to select a VFD?

Send the motor nameplate, supply voltage, load type, normal and peak current, speed range, braking needs, control method, communication protocol and site conditions. Cabinet cooling, EMC, upstream protection and any safety function also matter. The VFD family pages are a starting point, not a complete sizing decision.

What does an HMI do in an industrial machine?

An HMI gives operators a screen for machine status, alarms, setpoints, recipes and approved commands. It exchanges data with a PLC, drive or controller, but it does not replace the control program or the machine safety system. Choose one from the screen size, environment, ports, protocols, software and operator workflow. The HMI product records show published options for comparison.

Cross-brand connections and software

Which software is needed to program an industrial HMI?

The software depends on the exact HMI family and hardware generation. Similar-looking panels can use different project tools, file formats, drivers and firmware. Before installing anything, record the full model and revision, then check the maintained manufacturer manual and software page. If you are replacing or recovering an older panel, keep the original project and version information. The document center lists reviewed files and a request path for anything missing.

Can an HMI communicate with a PLC from another brand?

Often there is a workable path when both devices support the same physical interface, protocol and complementary device roles. A shared protocol name alone is not enough: ports, addressing, data types, register layout, byte order, write permissions, timeouts and fault behavior must also match. Use a programming review to check the exact HMI, PLC, project files and tag map before relying on a cross-brand connection.

Can you identify a replacement from a competitor part number?

The full part number identifies the review target. We still need to compare voltage, I/O, protocol, mechanics, software, environment, safety functions and the machine role. Send the part number through the engineering review form and we will map the candidate route. Every cross-brand option uses the wording candidate replacement — subject to engineering review.

Can an existing PLC or HMI project be converted automatically?

Usually not across different vendor ecosystems. The source project helps document logic, tags, alarms, recipes, drivers and hardware settings, but these may need to be rebuilt in the target tools. The programming service is scoped from the available source files, functional description and acceptance requirements.

Orders and documents

What are your lead times for automation products?

Lead time depends on the exact model, revision, quantity, configuration, destination and shipping method. Availability is checked per SKU during the RFQ process; this website does not publish live stock counts or fixed ship dates. Any faster shipping option is stated in the quotation after the order details are known.

How do I request a datasheet or certification document?

Use the document request index for listed datasheets and catalog pages. For RoHS records, SGS reports or shipping documents, follow the compliance document process. Files are matched to the exact model, revision or order; a document for a related product is not treated as equivalent evidence.

Services and after-sales

Can you supply hardware and help with the programming?

Yes, when the hardware and programming work can be defined from the available application information. We separate the product BOM from logic, HMI, protocol and test deliverables so each responsibility is clear. The existing project, I/O list, network topology and required machine behaviour are needed before the programming scope is quoted.

Do you provide commissioning support?

Commissioning can be scoped for parameter checks, I/O verification, communications and agreed machine sequences. Delivery may be remote or on site depending on access, documentation and responsible site personnel. The commissioning scope states the boundary; machine safety and final approval remain with the responsible project parties.

How are warranty claims and returns handled?

Warranty, return eligibility, RMA steps, shipping responsibility and any replacement option depend on the exact SKU, manufacturer terms and order record. Send the order number, model and evidence of the issue so the applicable process can be checked. The applicable commercial boundaries are confirmed against the order record.

About the company

Is Automation Liberty a manufacturer or brand-appointed supplier?

No. We are an independent engineering and sourcing partner. Third-party brand names identify installed products and migration targets; they do not imply manufacturer appointment.

What should I send for a BOM review?

The clearest part-number list you have, with quantities and machine context. Drawings, programs, nameplate photos, protocols and target dates help separate straightforward supply lines from items needing engineering work.

How quickly do you respond?

Most complete submissions get a first engineering reply within 1 business day. Multi-brand migrations, or requests missing source files, take longer to define before a quotation.

Which product lines do you work with?

Kinco PLC, HMI, servo and VFD; Kemron VFDs; USR industrial communication; 3onedata industrial networking. Exact model support depends on the application and available documentation.

Where is Automation Liberty based?

Shenzhen, Guangdong, China, with enquiries handled in English and Chinese. Shipping method, destination documents and service delivery are agreed per order.

Have a model or application we did not cover?

Send the exact part number and the context you already have. We will ask for any information still needed.

Ask the engineering desk