ABB ACS850-04 - Page 226

226 Parameters
91.04 Pos data bits Defines the number of bits used within one revolution. Used
with serial interfaces, i.e. when parameter 91.02 Abs enc
interf setting is EnDat, Hiperface, SSI or Tamag. 17/33b.
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 (if used). 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.
False Zero pulse disabled. 0
True Zero pulse enabled. 1
91.10 Hiperface parity Defines the use of parity and stop bits for HIPERFACE
encoder (i.e. when parameter 91.02 Abs enc interf setting is
Hiperface). Typically, this parameter does not need to be set.
Odd Odd parity indication bit, one stop bit. 0
Even Even parity indication bit, one stop bit. 1
91.11 Hiperf baudrate Defines the transfer rate of the link for HIPERFACE encoder
(i.e. when parameter 91.02 Abs enc interf setting is
Hiperface). Typically, this parameter does not need to be set.
4800 4800 bit/s 0
9600 9600 bit/s 1
19200 19200 bit/s 2
38400 38400 bit/s 3
91.12 Hiperf node addr Defines the node address for HIPERFACE encoder (i.e. when
parameter 91.02 Abs enc interf setting is Hiperface).
Typically, this parameter does not need to be set.
0…255 HIPERFACE encoder node address. 1 = 1
91.20 SSI clock cycles Defines the length of the SSI message. The length is defined
as the number of clock cycles. The number of cycles can be
calculated by adding 1 to the number of bits in an SSI
message frame.
Used with SSI encoders, i.e. when parameter 91.02 Abs enc
interf setting is SSI.
2…127 Length of SSI message. 1 = 1
91.21 SSI position msb Defines the location of the MSB (most significant bit) of the
position data within an SSI message.
Used with SSI encoders, i.e. when parameter 91.02 Abs enc
interf setting is SSI.
1…126 Location of MSB (bit number) in SSI position data. 1 = 1
91.22 SSI revol msb Defines the location of the MSB (most significant bit) of the
revolution count within an SSI message.
Used with SSI encoders, i.e. when parameter 91.02 Abs enc
interf setting is SSI
.
1…126 Location of MSB (bit number) in SSI revolution count. 1 = 1
91.23 SSI data format Selects the data format for SSI encoder (i.e. when parameter
91.02 Abs enc interf setting is SSI).
binary Binary data format. 0
gray Gray data format. 1
No. Name/Value Description FbEq