ABB ACL30, User Manual

Page: 279 / 360

Parameters 279
93.04 ENC POS EST ENA Selects whether position estimation is used with
encoder to increase position data resolution or not. TRUE /
enum
FALSE Measured position (Resolution: 4 x pulses per
revolution for quadrature encoders, 2 x pulses per
revolution for single track encoders.) 0
TRUE Estimated position. (Uses position extrapolation.
Extrapolated at the time of data request.) 1
93.05 ENC SP EST ENA Selects whether calculated or estimated speed is
used with encoder. FALSE /
enum
FALSE Last calculated speed (calculation interval is 62.5
µs…4 ms). 0
TRUE Estimated speed (estimated at the time of data
request) Estimation increases the speed ripple in
steady state operation, but improves the dynamics. 1
93.06 ENC OSC LIM Activates transient filter for encoder. Changes of
direction of rotation are ignored above the selected
pulse frequency. 4880Hz /
enum
4880Hz Change in rotation of direction allowed below
4880 Hz. 0
2440Hz Change in rotation of direction allowed below
2440 Hz. 1
1220Hz Change in rotation of direction allowed below
1220 Hz. 2
Disabled Change in rotation of direction allowed at any pulse
frequency. 3
93.07 EMUL PULSE NR
Defines the number of TTL pulses per revolution
used in encoder emulation.
Encoder emulation is enabled by parameter
90.02
EMUL MODE SEL.
0 / UINT32
0…65535 TTL pulses used in encoder emulation. 1 = 1 / -
93.08 EMUL POS REF
Selects the source for the position value used in
encoder emulation when parameter
90.02 EMUL
MODE SEL is set to FEN-01 SWref , FEN-11 SWref ,
FEN-21 SWref or FEN-31 SWref . See parameter
group 90 ENC MODULE SEL .
The source can be any actual or reference position
value (except
01.09 ENCODER POS).
P.POS ACT /
Val pointer
Value pointer (See Terms and abbreviations on
page 183 .)
No. Bit/Name/Value/
Range Description Def/Type
FbEq
(16b/32b)