1756-OF4 Output Wrong? Check Mode, RTB, and Scaling First
A field-first diagnostic sequence for 1756-OF4 analog output problems: channel mode, removable terminal block, scaling, and controlled electrical checks.
Manufacturer: Siemens
Product No.: 6FC3986-3JR
Country of origin:Germany
Product Type: Controllers
Barcode: 85044095
Payment: T/T, Western Union
Weight: 800g
Dimensions: 12.00cm x 9.30cm x 8.50cm
Shipping port: Xiamen
Warranty: 12 months
Description
The 6FC3986-3JR is a Measurement Circuit Module (HMS) from the SINUMERIK controller range. Engineered by Siemens, this module is designed to process feedback data for CNC systems, specifically handling 3 actual values and 3 setpoints for absolute positioning applications. It acts as a critical interface between the machine's absolute encoders and the SINUMERIK control unit, ensuring accurate synchronization and precise motion control. Although now classified as Obsolete, this module is essential for the continued operation and maintenance of older SINUMERIK-based machine tool architectures.
Features
Technical Specifications
| Attribute | Specification |
|---|---|
| Manufacturer | Siemens |
| Brand | Siemens |
| Product Range | SINUMERIK |
| Model | 6FC3986-3JR |
| Product Type | Measurement Circuit Module (HMS) |
| Capability | 3 Actual Values / 3 Setpoints |
| Weight | 0.80kg |
| Dimensions | 12.00 x 9.30 x 8.50 cm |
| Commodity Code | 85044095 |
| PLM Product Phase | Obsolete |
Installation Guidelines
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Returns & Warranty

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Returns & Warranty
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| Color pattern |
Dots
|
| Country of origin |
Germany
|
| Power source |
DC Power
|