S700 EEO Index Pulse Alignment Based on Feedback Device

S700 EEO Index Pulse Alignment Based on Feedback Device

The location of the Emulated Encoder Output (EEO) index pulse (marker pulse) is handled differently for absolute type feedback devices and incremental type feedback devices.  For absolute devices, including resolver and Endat/BiSS absolute encoders, the EEO index is located at a fixed absolute position of the motor.  For incremental devices, including AquadB and Sine/Cosine encoders, the EEO index is located at the position at which the motor was sitting when the drive was booted up.

Test results:

S70302-NANANA

Firmware: 5.67

For Resolver:

EEO index pulse is always at one absolute motor position.

For Comcoder/AquadB incremental encoder:

EEO index pulse is always at the position at which the motor was sitting when the drive booted up last.

For BiSS single turn absolute (FBTYPE = 20 and 23):

EEO index pulse is always at one absolute motor position.

For Sin/Cos with W&S:

EEO index pulse is positioned based on where the motor is sitting when the drive boots up, but not exactly at that position.  Before W&S, it is at the position at which the motor was sitting when the drive booted up.  After W&S, the EEO index pulse is moved about 1/8 rev clockwise from where the motor was sitting when the drive booted up.