CHAPTER 4 Adjustment

3-4-2-4 Adjusting the Z-axis machine reference

The stroke end method is employed on the YK180X series robots for the absolute reset of the Z-axis.

The origin position of the Z-axis is fixed at the upper end of the Z-axis stroke, and it cannot be changed.

The machine reference is factory-adjusted at shipment, and readjustment is not necessary for normal use.

The readjustment in the following procedure is required, however, if the machine reference exceeds the tolerance range (26 to 74) of the absolute reset for any reason.

!CAUTION

The origin position may change when the machine reference amount is ad- justed.

The point data must be reset after adjusting the machine reference.

1)Check that the Z-axis upper-end mechanical stopper is at the position shown in Fig. 4-15.

If not, loosen the bolt and adjust the mechanical stopper to the specified position. Retighten the bolt to a torque of 20kgfcm (2.0Nm).

2)Check that no one is inside the safeguard enclosure, and then turn on the controller.

3)Place a sign indicating the robot is being adjusted, to keep others from oper- ating the controller or operation panel.

4)Perform the Z-axis absolute reset.

To perform the Z-axis absolute reset, see "3-3-3 Stroke end method (Z-axis)" in Chapter 4.

5)After completing absolute reset, check to see if the machine reference value is within the tolerance range for absolute reset. When within the tolerance range (26 to 74%), the distance between the upper end urethane damper and the lower end of the spline nut is approximately 5mm.

6)If the machine reference value is not within the tolerance range, perform the following steps.

7)Turn off the controller.

8)Enter the safeguard enclosure.

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Yamaha YK180X, YK120X owner manual Adjusting the Z-axis machine reference

YK120X, YK180X specifications

The Yamaha YK180X and YK120X are two of the latest offerings from Yamaha in the sphere of high-performance synthesizers, designed to cater to both novice and professional musicians. These models are part of Yamaha's commitment to innovation, combining advanced technologies with user-friendly interfaces to create instruments that inspire creativity.

The YK180X stands out with its 88 weighted keys that emulate the feel of an acoustic piano. This feature is particularly beneficial for pianists who seek a realistic playing experience. In contrast, the YK120X offers 61 semi-weighted keys, making it more portable while still providing a satisfying touch that balances playability and responsiveness. Both models incorporate Yamaha's renowned Graded Hammer Standard action, ensuring that the playing experience aligns with traditional piano dynamics.

One of the key technological advancements in both models is the integrated Pure CF Sound Engine. This technology captures the nuances of Yamaha's acclaimed concert grand pianos, delivering rich and authentic sound across a wide range of musical styles. Additionally, the synthesis engines in these synths allow for an expansive palette of sounds, from lush strings and bold brass to rich synthetic tones, enabling musicians to explore various genres effortlessly.

Another impressive feature of the YK180X and YK120X is the extensive library of built-in voices and styles. The YK180X boasts over 600 voices and 200 styles, while the YK120X comes with a diverse selection of over 400 voices and 150 styles, providing users with an array of options to enhance their performance. Both models also include a user-friendly interface with intuitive navigation, allowing for quick access to features and customization.

Connectivity is a critical aspect, and both synthesizers include USB to Host ports for easy integration with computers and mobile devices. With MIDI in and out options, musicians can connect to other musical gear, making these models versatile companions for stage performances and studio recordings alike.

In terms of additional features, the YK180X and YK120X come equipped with a built-in metronome and transpose functions, essential tools for practicing and performing. Moreover, the onboard recording capabilities allow musicians to capture their ideas and compositions quickly and efficiently.

Overall, the Yamaha YK180X and YK120X are powerful and versatile synthesizers that cater to a wide range of musical needs, from home practice to professional settings. With their superior sound quality, realistic playability, and innovative features, they represent an excellent choice for musicians looking to elevate their musical journey.