ABB ACSM1 Series, Manual

Page: 263 / 510

Parameters and firmware blocks
263
91.21 SSI POSITION MSB FW block: ABSOL ENC CONF (see above)
Defines the location of the MSB (main significant bit) of the position data within a SSI message. Used
with SSI encoders, ie, when parameter
91.02 ABS ENC INTERF is set to (4) SSI .
1…126 Position data MSB location (bit number).
91.22 SSI REVOL MSB FW block: ABSOL ENC CONF (see above)
Defines the location of the MSB (main significant bit) of the revolution count within a SSI message.
Used with SSI encoders, ie, when parameter
91.02 ABS ENC INTERF is set to (4) SSI .
1…126 Revolution count MSB location (bit number).
91.23 SSI DATA FORMAT FW block: ABSOL ENC CONF (see above)
Selects the data format for SSI encoder (ie, when parameter 91.02 ABS ENC INTERF is set to (4)
SSI ).
(0) binary Binary code.
(1) gray Gray code.
91.24 SSI BAUD RATE FW block: ABSOL ENC CONF (see above)
Selects the baud rate for SSI encoder (ie, when parameter 91.02 ABS ENC INTERF is set to (4) SSI ).
(0) 10 kbit/s 10 kbit/s.
(1) 50 kbit/s 50 kbit/s.
(2) 100 kbit/s 100 kbit/s.
(3) 200 kbit/s 200 kbit/s.
(4) 500 kbit/s 500 kbit/s.
(5) 1000 kbit/s 1000 kbit/s.
(6) 1500 kbit/s. 1500 kbit/s.
(7) 2000 kbit/s. 2000 kbit/s.
91.25 SSI MODE FW block: ABSOL ENC CONF (see above)
Selects the SSI encoder mode.
Note: Parameter needs to be set only when an SSI encoder is used in continuous mode, ie, SSI
encoder without incremental sin/cos signals (supported only as encoder 1). SSI encoder is selected
by setting parameter
91.02 ABS ENC INTERF to (4) SSI .
(0) Initial pos. Single position transfer mode (initial position).
(1) Continuous Continuous position transfer mode. Measured encoder speed is not
calculated and is always 0.
(3) Cont.spd+pos. Both speed and absolute position are transferred continuously.
Measured speed quality depends on the baudrate and may be weak.