3 Maintenance
3.7.3. SIS system parameters
2393HAC022033-001 Revision: K
© Copyright 2004-2011 ABB. All rights reserved.
Gearbox warning
A percentage of the gearbox service interval as calculated by the system. E.g. by setting the
value "90", the SIS will alert the operator after 90% of the expected service interval of each
gearbox.
The robot system automatically detects and stores all required variables to calculate the
expected service interval (estimated remaining lifetime) of each gearbox. This is done by
extrapolating data from earlier operation into a function of time, using a formula including:
• input and output torque
• gearbox spindle speed
• other variables
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