ABB ACSM1 - Page 236

Parameters and firmware blocks
236
(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 (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 measured and estimated position is used with encoder 1.
(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)
Selects the maximum pulse frequency for the changing of the direction of rotation (used with
encoder 1).
(0) 4880HZ 4880 Hz.
(1) 2440HZ 2440 Hz.
(2) 1220HZ 1220 Hz.
(3) DISABLED Not selected.
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