ABB ACSM1 - Page 268

Parameters and firmware blocks
268
(0) A&B all Channels A and B: Rising and falling edges are used for speed
calculation. Channel B: Defines the direction of rotation. *
Note: When single track mode has been selected by parameter 93.02
ENC1 TYPE, setting 0 acts like setting 1.
(1) A all Channel A: Rising and falling edges are used for speed calculation.
Channel B: Defines the direction of rotation. *
(2) A rising Channel A: Rising edges are used for speed calculation. Channel B:
Defines the direction of rotation. *
(3) A falling Channel A: Falling edges are used for speed calculation. Channel B:
Defines the direction of rotation. *
(4) auto rising Used mode (0, 1, 2 or 3) is changed automatically depending on the
pulse frequency according to the following table:
(5) auto falling
93.04 ENC1 POS EST ENA FW block: PULSE ENC CONF (see above)
Selects whether position estimation is used with encoder 1 to increase position data resolution or not.
(0) FALSE Measured position (Resolution: 4 x pulses per revolution for
quadrature encoders, 2 x pulses per revolution for single track
encoders.)
(1) TRUE Estimated position. (Uses position extrapolation. Extrapolated at the
time of data request.)
93.05 ENC1 SP EST ENA FW block: PULSE ENC CONF (see above)
Selects whether calculated or estimated speed is used with encoder 1.
(0) FALSE Last calculated speed (calculation interval is 62.5 µs…4 ms).
(1) TRUE Estimated speed (estimated at the time of data request) Estimation
increases the speed ripple in steady state operation, but improves the
dynamics.
93.06 ENC1 OSC LIM FW block: PULSE ENC CONF (see above)
Activates transient filter for encoder 1. Changes of direction of rotation are ignored above the selected
pulse frequency.
(0) 4880Hz Change in rotation of direction allowed below 4880 Hz.
(1) 2440Hz Change in rotation of direction allowed below 2440 Hz.
(2) 1220Hz Change in rotation of direction allowed below 1220 Hz.
(3) Disabled Change in rotation of direction allowed at any pulse frequency.
93.03 = 4 93.03 = 5
Pulse frequency of the channel(s)
Used mode
0 0 < 2442 Hz
1 1 2442…4884 Hz
2 3 > 4884 Hz