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HEIDENHAIN AK LIF 9 W Series Manual
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HEIDENHAIN AK LIF 9 W Series Manual

HEIDENHAIN AK LIF 9 W Series Manual

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LIF 982W
Montageanleitung
These mounting instructions are valid for the
scanning head LIF 98W (ID 1184920-xx) and the scale 902W (ID 658739-01)
Warnings
Edited on:
Change-No.
C056927-05
Serie
Created
Responsible
Name
Schäfer
Schäfer
25.04.2017
25.04.2017
Date
Released
D1215163 - 00 - A - 01
Bauer
25.04.2017
Version
Rev. Sheet Page
Document no.
1/
12

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Summary of Contents for HEIDENHAIN AK LIF 9 W Series

  • Page 1 LIF 982W Montageanleitung These mounting instructions are valid for the scanning head LIF 98W (ID 1184920-xx) and the scale 902W (ID 658739-01) Warnings Edited on: Change-No. Created Responsible Released Version Rev. Sheet Page C056927-05 D1215163 - 00 - A - 01 Name Schäfer Schäfer...
  • Page 2 Items Supplied Figure 1: LIF 98W scanning head covered in shielding bag Figure 2: LIF 98W scanning head (ID 1184920-xx) Figure 3: LIF 902W scale (ID 658739-01) Figure 4: LIF 9x2 mounting aid Change No. Created Responsible Released Version Rev. Sheet Page C056927-05 D1215163 - 00 - A - 01 Name...
  • Page 3 Mounting the Scale Remove the scale from the packaging as shown in Figure 5. Figure 5: Removing the scale Ensure that the red protective clip remains on the scale. Under no circumstances, never touch the graduation with your fingers (danger of contamination). In order to align the scale (figures 6 and 7), the top surface and a side surface of the scale holder both serve as supports.
  • Page 4 Four screws (DIN EN ISO 4762 M2 x 6) are recommended for securing the scale. (Maximum tightening torque: 0.32 Nm). Figure 8: Securing the scale Mounting the Scanning Head Take the scanning head out of the shielding bag Figure 9: Scanning head with shielding bag Align the scanning head with the support surface.
  • Page 5 Put the head at its approximate position while the protective cover still remains on the scale. Secure the head loosely in order to allow adjustment. Two screws (DIN EN ISO 4762 M2.5 x 20) and two washers (DIN EN ISO 7092 2.5) are recommended for securing the scanning head. Figure 11: Pre-positioned scanning head Remove the protective clip.
  • Page 6 Press the scanning head to the support alignments and tighten the mounting screws. (Maximum tightening torque: 0.65 Nm). Support alignments for the scanning head Figure 15: Securing the scanning head It must be easy to remove the LIF 9x2 mounting aid from the scanning gap after the scanning head has been mounted.
  • Page 7 Adjusting the Output Signals A PWM8 phase-angle measuring unit from HEIDENHAIN (Id. Nr. 309 956-xx), for example, along with a connecting cable (Id. Nr. 331 693-xx) and oscilloscope, is suited for adjusting the output signals. Figure 17: Accessories for adjustment Remove the protective cap on the plug of the adapter connector, and remove the cover.
  • Page 8 Use the adapter cable (331 693-xx) to connect the LIF 982W to the PWM8, and the BNC outputs of the PWM with the oscilloscope. Figure 19: Adjustment setup The PWM8 displays the signals as shown below. Figure 20: Display of the signals on the PWM8 Change No.
  • Page 9 The signals can also be displayed on the oscilloscope as follows: A (0°) B (90°) 360° Figure 21: Incremental signal display on the oscilloscope 360° A + B Figure 22: Reference signal display on the oscilloscope Five potentiometers and one DIP-switch are available on the adapter connector for adjusting the signals.
  • Page 10 The following values are to be checked and/or set: Signal values Initial operation Fine adjustment Typical values* Signal levels M (0°, 90°)* 0.8 …1.2 V Not possible 0.6 …1.2 V Amplitude ratio M 0.8 … 1.25 0.95 … 1.05 0.95 … 1.05 90°...
  • Page 11 Electrical Connection Electrical Data Power supply Output signals Change No. Created Responsible Released Version Rev. Sheet Page C056927-05 D1215163 - 00 - A - 01 Name Schäfer Schäfer Bauer Serie Date 25.04.2017 25.04.2017 25.04.2017 Document no.
  • Page 12 Cleaning You must always ensure that the encoder is protected from contamination during both mounting and operation. If the encoder must be cleaned, the following must be kept in mind: There are no optical components inside the scanning head that can be accessed from the outside. The graduated scale is exposed in its holder, meaning that it might become necessary to clean the scale.