FAQ: How is the fully-closed encoder option configured when using the JUSP-NS300?
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The fully-closed encoder option available in the JUSP-NS300 module operates in the same manner as the JUSP-FC100 (fully-closed option module for the SGDH Servopack). Below is the basic parameter configuration information. Please reference the JUSP-FC100 User's manual for further details (SIE-C718-5). A link to the manual is below.
The linear scale must provide quadrature feedback and be connected according to the attached .JPG drawing..
The following parameter changes are required as well:
Pn002 Digit 3 must be set to:
(Fully Closed Encoder Usage Method)
0 - No fully closed encoder (Semi-Closed Operation)
1 - Fwd fully closed encoder w/o C-Phase
2 - Fwd fully closed encoder w/ C-Phase
3 - Rev fully closed encoder w/o C-Phase
4 - Rev fully closed encoder w/ C-Phase
After setting this parameter a power cycle of the SGDH control power is required for it to become effective.
Pn206 Number of Fully Closed Encoder Pulses
Setting Range 513 - 65535 [Factory Default: 16384]
This is the pre-quadrature number of pulses from the fully closed encoder per revolution of the rotary motor.
Pn51A Position Error Level between motor & load positions
Setting Range 0 - 32767 [Factory Default: 10]
This is the maximum error between the motor pulses and fully closed pulses (in post-quad motor pulses). The default may be low for an un-tuned system. If this error level is exceeded the SGDH will display an A.D1 alarm.
Download the interface user's manual by going to:
ftp://ftp.yaskawa.de/Public/PDF_Technical_Documentation/Motion&Control/Option_Board/FC100_FULLY_CLOSED/SigmaII_Series_FULLY_CLOSED_Interface_Unit_User's_Manual(SIE-C718-5_03).zip
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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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