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Product description

Heidenhain 689681-10 is an absolute sealed linear encoder from the LC 485 series with a compact design and small cross-section. The unit provides an absolute position immediately after power-up, without a preceding reference run. Its measured value is transferred serially to the downstream electronics through the digital EnDat 2.2 interface. With a measuring length of 520 mm, a total length of 625 mm and an accuracy of ±5.0 µm, Heidenhain 689681-10 is suitable for CNC machining centres, milling machines, lathes and grinding machines. The encoder operates with sinusoidal 1 Vpp voltage signals and a measuring step of 10 nm. The stated grating pitch is 20.000 µm. A 14-pin flange connector provides a compact electrical connection to the control electronics. Mounting uses a type 14A end block and a mounting rail; neither is included in the scope of supply. The aluminium housing reliably protects the measuring standard and scanning head, while IP53 protection supports operation under typical manufacturing conditions. The permissible operating temperature range is 0 °C to +50 °C, and supply voltage is between 3.6 V and 5.25 V. Before replacement, compare the complete identification, measuring length, EnDat version, signal output, connector and mounting accessories with the installed LC 485 encoder. The end block and rail requirements must be considered during mechanical planning. Available directly from our warehouse in Germany.

Heidenhain 689681-10

Specifications

Manufacturer Heidenhain
Product series LC 485
Manufacturer/Order/Identification number 689681-10
Encoder type Absolute sealed linear encoder
Measuring length 520 mm
Total length 625 mm (ML + 105 mm)
Accuracy grade ±5.0 µm
Grating pitch 20.000 µm
Measuring step 10 nm
Interface EnDat 2.2 (EnDat02)
Output signal 1 Vpp (sinusoidal)
Supply voltage 3.6 V to 5.25 V
Electrical connection 14-pin flange connector
Mounting End block (14A) + mounting rail
Protection rating IP53
Operating temperature 0 °C to +50 °C
Cooling method Natural convection
Weight approx. 0.5 kg
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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