Description of the Software Modules and Parameters
Parameter manual b maXX BM5800
Document No.: 5.16029.03
149
of 814
3
In addition, an automatic identification of the correction values is possible in ProDrive.
The current and the speed must be entered during the identification
(Z106.79–) for this
purpose. The evaluation is determined by a constant current input. The present status is
displayed in
Z106.72–.
3.4.6.7 SSI digital configuration
The complete transmission cycle must be processed within 61.5 µs. For this, the trans-
mission speed Z106.60– bits 10 to 13, the number of the bits to be transmitted
(Z106.62– + Z106.63– + Z106.98– + Z106.99–), the parity bit (Z106.60– bit 16) as well
as the monoflop time t
m
of the encoder are relevant (refer to the according encoder data
sheet).
Parity bit
Up to a maximum of 48 bit data + optional parity bit can be transmitted. In case the parity
bit shall be evaluated, it must be transmitted as the last bit (least-significant bit / LSB). If
the encoder transmits the parity bit at another position then it must be considered as a
data bit and goes into the 48-bit limitation. Then the parity bit is not be checked.
Additional data
If the encoder transmits additional data before and/or after the encoder position, these
can be filed in any scalar and cyclically writable parameters.
If the additional data is not relevant for the application, then the bit number (Z106.98–.
Z106.99–) is specified, only - the target parameter however is left empty.
Additional data can be transmitted before the position (MSB) or after the position (LSB).
Sample configuration
Z106.98– = 6 6 bit data before the position
Z106.63– = 8 8 bit revolutions
Z106.62– = 16 16 bit angle
Z106.99– = 18 18 bit data after the position
Z106.100– = Z126.21– Application parameter Uint16_1
Z106.101– = Z126.61– Application parameter Uint32_1
T
P106.62 P106.63 P106.98 P106.99 P106.60 bit 16++++
P106.60 bit 10...13 in Hz
--------------------------------------------------------------------------------------------------------------------------------------------t
m
61.5 s+=
NOTE!
When transmitting in the gray code format the additional data is decoded, as well!
To Next Page
Loading...