ABB ACS850 - Page 251

Parameters 251
91.25 SSI mode Selects the SSI encoder mode.
Note: This parameter needs to be set only when an SSI
encoder is used in continuous mode, i.e. without incremental
sin/cos signals (supported only as encoder 1). SSI encoder is
selected by setting parameter 91.02 Abs enc interf to SSI.
Initial pos. Single position transfer mode (initial position). 0
Continuous Continuous position transfer mode. 1
91.26 SSI transmit cyc Selects the transmission cycle for SSI encoder.
Note: This parameter needs to be set only when an SSI
encoder is used in continuous mode, i.e. without incremental
sin/cos signals (supported only as encoder 1). SSI encoder is
selected by setting parameter 91.02 Abs enc interf to SSI.
50 µs 50 µs transmission cycle. 0
100 µs 100 µs transmission cycle. 1
200 µs 200 µs transmission cycle. 2
500 µs 500 µs transmission cycle. 3
1 ms 1 ms transmission cycle. 4
2 ms 2 ms transmission cycle. 5
91.27 SSI zero phase Defines the phase angle within one sine/cosine signal period
that corresponds to the value of zero on the SSI serial link
data. The parameter is used to adjust the synchronization of
the SSI position data and the position based on sine/cosine
incremental signals. Incorrect synchronization may cause an
error of ±1 incremental period.
Note: This parameter needs only be set when an SSI
encoder with sine/cosine incremental signals is used in initial
position mode.
315-45 deg 315…45° phase angle. 0
45-135 deg 45…135° phase angle. 1
135-225 deg 135…225° phase angle. 2
225-315 deg 225…315° phase angle. 3
91.30 Endat mode Selects the EnDat encoder mode.
Note: This parameter needs to be set only when an EnDat
encoder is used in continuous mode, i.e. without incremental
sin/cos signals (supported only as encoder 1). EnDat encoder
is selected by setting parameter 91.02 Abs enc interf to
EnDat.
Initial pos. Single position data transfer (initial position). 0
Continuous Continuous position data transfer mode. 1
91.31 Endat max calc Selects the maximum encoder calculation time for EnDat
encoder.
Note: This parameter needs to be set only when an EnDat
encoder is used in continuous mode, i.e. without incremental
sin/cos signals (supported only as encoder 1). EnDat encoder
is selected by setting parameter 91.02 Abs enc interf to
EnDat.
10 µs 10 µs maximum calculation time. 0
100 µs 100 µs maximum calculation time. 1
1 ms 1 ms maximum calculation time. 2
50 ms 50 ms maximum calculation time. 3
No. Name/Value Description FbEq