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Product description

Heidenhain MC 422, identification number 343656-04, is the main computer module for the iTNC 530 CNC control system. It performs NC axis calculations, program execution and PLC processing and works directly with the CC 422 controller module. Five position-encoder inputs accept 1-Vpp and EnDat signals from compatible Heidenhain linear and angle encoders. The integrated PLC interface provides 31 switching outputs at connector X41 and eight additional outputs at X46 for the machine operating panel. All outputs are 24-V-DC compatible and are implemented to EN 61131-2. Rated operating current is 0.125 A per output at a simultaneity factor of 0.5, with a minimum load of 5 mA. Current limiting protects the transistor outputs and permits a brief short circuit at one output as described in the service documentation. System data and machine parameters are stored on the exchangeable HDR, or Hard Disk Removable carrier. Its housing also contains the SIK, the System Identification Key that licenses the NC software. Replacing the MC module therefore requires the existing HDR, including the SIK, to be transferred to the replacement unit in accordance with the Heidenhain iTNC 530 service procedure. Appropriate ESD precautions are required. This is a used industrial spare part; compare the complete identification number, partner-module assignment, connections and installed software before fitting it. The 530 platform and the TNC-530 machine configuration must be verified from the original documentation.

Heidenhain 343656-04 MC 422 main computer module

Specifications

Manufacturer Heidenhain
Product series iTNC 530
Manufacturer/Order/Identification number 343656-04
Product type MC 422 main computer module
Position-encoder inputs 5 (1 Vpp / EnDat)
PLC outputs X41 31 switching outputs
PLC outputs X46 8 switching outputs (machine operating panel)
Rated current per output 0.125 A (simultaneity factor 0.5)
PLC switching voltage 24 V DC
Minimum PLC output load 5 mA
PLC standard EN 61131-2
Partner module CC 422 (controller computer)
Licensing SIK (System Identification Key) in HDR
Mass storage HDR (Hard Disk Removable)
Weight Not specified
Control cabinet with PLC modules and automation components
Machine downtime in a production environment

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Product safety

Manufacturer / EU responsible person

FAQ

Frequently asked questions

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Is there a warranty?

Yes. We provide a 14-day functional warranty for used items. The component must be functional on arrival, and the warranty applies only while the warranty seal remains undamaged. If a fault occurs within 14 calendar days, please contact us in writing. Depending on availability, we will either provide a replacement or refund the full purchase price after the item has been returned. Further details are set out in the terms and conditions supplied with our quotation.

How quickly do you ship, and which shipping options are available?

We normally dispatch available items immediately and, in many cases, on the same working day. For urgent requirements or machine downtime, we will identify the fastest suitable option and can confirm a specific delivery window on request. Express shipping and collection from our premises are also possible by arrangement. We ship worldwide using reliable parcel and freight carriers; freight shipments may require additional preparation to ensure safe delivery.

Is there a guarantee?

Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.

Please note that the guarantee only applies when the warranty seal is undamaged.

If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.

Further details are provided in the terms and conditions supplied with your quotation.

How quickly do you dispatch and which shipping options are available?

We generally dispatch immediately - in many cases on the same working day. For particularly urgent requirements or machine downtime, we find a suitable solution as quickly as possible and provide a specific delivery window on request.

Express shipping or collection from our premises is also possible, depending on the situation. State your requirements during the ordering process or contact us directly.

We ship worldwide and work with reliable shipping partners, from parcel services to freight forwarding. Freight shipments normally require some preparation so the goods arrive safely and undamaged.

Which payment methods are available?

Payment is normally made by bank transfer against invoice. Payment is due within 10 calendar days of receiving the goods.

As a rule, we offer purchase on account for all customers. In individual cases, such as new customers or particularly high-value components, we may agree advance payment. This decision is made individually and communicated transparently.

Can we return items if they were ordered incorrectly?

Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.

Please note that returns of functioning goods are generally excluded. In justified exceptional cases, we can assess an individual solution, but this is not the standard procedure.

Is there a discount when ordering several items?

For larger order quantities or several items of one type, we can offer individual discounts.

Simply send us a quick enquiry - we check availability and will gladly prepare a tailored quotation with quantity pricing.

Do you also purchase industrial spare parts?

Yes, we also purchase automation components, such as frequency inverters, PLC assemblies, panels, servo motors and CPUs. Components from Siemens, Lenze, Schneider Electric, Control Techniques or Heidenhain are especially sought after, and other brands are also possible.

The process is straightforward: email us an inventory list or overview photos at info@reha-industriekomponenten.de. We calculate a market-based purchase price and send you an offer.

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