GE AF-650 GP - Block Diagrams for Drive Systems

3.13 EC-## Feedback Option
3.13.1 EC-1# Inc. Enc. Interface
EC-10 Signal Type
Select the incremental type (A/B channel) of the encoder in use. Find the information on the encoder data sheet.
Select None [0] if the feedback sensor is an absolute encoder only.
This parameter cannot be adjusted while the motor is running.
Option: Function:
[0] None
[1] * RS422 (5V TTL)
[2] Sinusoidal 1Vpp
EC-11 Resolution (PPR)
Range: Function:
1024* [10 - 10000] Enter the resolution of the incremental track, i.e. the number of pulses or periods per revolution.
This parameter cannot be adjusted while the motor is running.
3.13.2 EC-2# Abs. Enc. Interface
EC-20 Protocol Selection
Select HIPERFACE [1] if the encoder is absolute only.
Select None [0] if the feedback sensor is an incremental encoder only.
This parameter cannot be adjusted while the motor is running.
Option: Function:
[0] * None
[1] HIPERFACE
[2] EnDat
[4] SSI
EC-21 Resolution (Positions/Rev)
Select the resolution of the absolute encoder, i.e. the number of counts per revolution.
This parameter cannot be adjusted while the motor is running. The value depends on setting in par. EC-20 Protocol Selection.
Range: Function:
8192.* [4. - 131072.]
EC-24 SSI Data Length
Range: Function:
13* [13 - 25] Set the number of bits for the SSI telegram. Choose 13 bits for single-turn encoders and 25 bits for multi-
turn encoder.
EC-25 Clock Rate
Range: Function:
0 kHz* [100 - 0 kHz] Set the SSI clock rate. With long encoder cables the clock rate must be reduced.
EC-26 SSI Data Format
Option: Function:
[0] * Gray code
[1] Binary code Set the data format of the SSI data. Choose between Gray or Binary format.
AF-650 GP Programming Guide
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