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Interfaces
4.7.2
SSI output (X5)
The SSI interface (synchronous serial absolute-encoder emulation) is part of the package
supplied. Select encoder function SSI ("Encoder Emulation" screen page). The servo
amplifier calculates the motor shaft position from the cyclic-absolute signals of the resol-
ver 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:
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 (1,3 µs or 10 µs).
The drivers operate off an internal supply voltage.
Connection and signals for the SSI interface :
The count direction for the SSI interface is UP when the motor shaft is rotating clockwise
(looking at the end of the motor shaft).
54
Revolution
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
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
SERVOSTAR
12/05
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
SERVOSTAR
Kollmorgen
Resolution (variable)
®
300 Installation Manual
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