Installation / Preparation for Commissioning
TR-Electronic GmbH 2020, All Rights Reserved Printed in the Federal Republic of Germany
Page 28 of 91 TR-ECE-BA-GB-0163 v03 10/07/2020
3.4.2.2 Cable lengths
SSI clock frequency and cable quality determine the maximum cable length.
TR’s own hybrid cable (part number: 64-200-021) was used for the measurements.
SSI clock frequency [kHz]
1000 500 250 125 125 125
Cable length [m]
ca. 25 ca. 50 ca. 100 ca. 150 ca. 200 ca. 250
Table 1: SSI clock frequency / cable lengths
Figure 7: SSI clock frequency / cable lengths
Other cable parameters, frequencies, and ambient temperatures as well as bearing heat and
temperature increase via the shaft and flange, can yield a considerably poorer result in practice.
Therefore, the fault-free function of the SSI interface with the application-dependent parameters must
be checked prior to productive operation.
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