ABB ACS850 series, Руководство пользователя, Страница: 249 / 370

Parameters 249
Warning The drive generates an ENCODER 1/2 CABLE warning. This
is the recommended setting if the maximum pulse frequency
of sine/cosine incremental signals exceeds 100 kHz; at high
frequencies, the signals may attenuate enough to invoke the
function. The maximum pulse frequency can be calculated as
follows: 2
90.10 Enc par refresh Setting this parameter to 1 forces a reconfiguration of the
FEN-xx interfaces, which is needed for any parameter
changes in groups 90…93 to take effect.
Note: The parameter cannot be changed while the drive is
running.
Done Reconfiguration done. 0
Configure Reconfigure. The value will automatically revert to Done . 1
91
91 Absol enc conf
Absolute encoder configuration. See also section Encoder
support on page 63 .
91.01 Sine cosine nr Defines the number of sine/cosine wave cycles within one
revolution.
Note: This parameter does not need to be set when EnDat or
SSI encoders are used in continuous mode. See parameter
91.25 SSI mode / 91.30 Endat mode .
0…65535 Number of sine/cosine wave cycles. 1 = 1
91.02 Abs enc interf Selects the source for the encoder absolute position.
None Not selected. 0
Commut sig Commutation signals. 1
EnDat Serial interface: EnDat encoder. 2
Hiperface Serial interface: HIPERFACE encoder. 3
SSI Serial interface: SSI encoder. 4
Tamag. 17/33b Serial interface: Tamagawa 17/33-bit encoder. 5
91.03 Rev count bits Defines the number of bits used in revolution count with
multiturn encoders. Used when parameter
91.02 Abs enc
interf is set to EnDat , Hiperface or SSI . When parameter
91.02 Abs enc interf is set to Tamag. 17/33b , setting this
parameter to a non-zero value activates multiturn data
requesting.
0…32 Number of bits used in revolution count. For example, 4096
revolutions corresponds to 12 bits. 1 = 1
91.04 Pos data bits Defines the number of bits used within one revolution when
parameter
91.02 Abs enc interf is set to EnDat , Hiperface or
SSI . When parameter 91.02 Abs enc interf is set to Tamag.
17/33b , this parameter is internally set to 17.
0…32 Number of bits. For example, 32768 positions per revolution
corresponds to 15 bits. 1 = 1
91.05 Refmark ena Enables the encoder zero pulse for the absolute encoder
input (X42) of an FEN-11 module (if present). Zero pulse can
be used for position latching.
Note: With serial interfaces (i.e. when parameter 91.02 Abs
enc interf setting is EnDat , Hiperface , SSI or Tamag. 17/33b ),
zero pulse must be disabled.
No. Name/Value Description FbEq
Max. pulse frequency
Pulses per rev. Max. speed in rpm
×
60
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