FAQ: What is the difference between a YS-13 and YS-15 cable?
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The YS-15 Cable is recommended when using the MP940.
The YS-15 cable, also known as a Programming Cable, is currently used to connect between a PC and the MP940 via RS232 (port#1 on the MP940). The YS-15 cable supports all revisions of the MP940 product. The YS-13 cable is an older style cable which was used on MP940 versions A03 and lower (it is not possible to communicate to an MP940 versions A05 or greater using a YS-13 cable).
Firmware Versions A03 (of the MP940) and lower only supported two wirre RS422/485. Firmware versions A05 and above now support both two and four wire. Hence, CTS and RTS are lines now supported in the MP940. The YS-15 cable loops back these lines to allow communications when the PC does not use the CTS/RTS lines.
A diagram showing the differences between the YS15 and YS13 cables is shown below.
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Please read and understand the product instruction manual before installing, servicing or operating Yaskawa products. FAQ content and illustrations are provided as technical advice to augment the information in manual, not supersede it. It is not possible to give detailed instructions for all types of installation or support activities. The information described in the FAQs are subject to change without notice to improve the product or FAQ. Yaskawa assumes no responsibility for errors or omissions or damages resulting from the use of the information contained in any FAQ. All warnings, cautions and product instruction for product use must be followed. Installation, operation and maintenance should be carried out by qualified personnel. Failure to observe these and other precautions highlighted in the product manuals will expose the user to high voltages resulting in, serious injury or death. Qualified personnel are defined as individuals who are familiar with the installation, starting, operation and maintenance of Yaskawa products of the type described and have proper qualifications to perform the work.
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