Kollmorgen S700 Instruction Manual page 149

Kollmorgen Expansions
07/2014
9.2.3.3.2 SSI encoder output (X5)
SSI interface (synchronous serial absolute-encoder emulation). Select encoder function
SSI ("Encoder Emulation" screen page, ENCMODE 2). The servo amplifier calculates the
motor shaft position from the cyclic-absolute signals of the resolver or encoder. From this
information a SSI date (Stegmann patent specification DE 3445617C2) is provided. Max
32 bits are transferred. The leading data bit contains the number of revolutions and are
selectable from 12 to 16 bits. The following max. 16 bits contain the resolution and are
not variable.
The following table shows the allocation of the SSI date depending upon selected number
of revolutions:
Revolution Resolution (variable)
SSIREVOL
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
13 12 11 10 9 8 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
12 11 10 9 8 7 6 5 4 3 2 1 0
11 10 9 8 7 6 5 4 3 2 1 0
The signal sequence can be output in Gray code or in Binary (standard) code.
The servo amplifier can be adjusted to the clock frequency of your SSI-evaluation with the
setup software.
The drivers operate off an internal supply voltage.
Connection and signals for the SSI interface :
Default count direction: UP when the motor shaft is rotating clockwise (looking at the end
of the motor shaft)
S700
S701x2-S724x2 Instructions Manual 149