3.7.3 SIS system parametersGeneralThis section details the system parameters that may be set with estimated values.The values can be defined by the operating organization as knowledge of therobot's working conditions are accumulated.Since the counters are to be used for purposes defined by the user, ABB cannotgive any recommendations regarding their definitions.Operation time limit (service level)The number of operation hours selected as service interval.E.g. by setting the value "20,000", the SIS will save this as the nominal time foractivating the alarm, not counting the percentage described below.Operation time warningA percentage of the "Operation time limit" specified above.E.g. by setting the value "90", the SIS will alert the operator 18,000 hours after anoperation time "Reset" was made the last time.Calendar time limit (service level)The number of calendar years selected as service interval.E.g. by setting the value "2", the SIS will save this as the nominal time for activatingthe alarm, not counting the percentage described below.Calendar time warningA percentage of the "Calendar time limit" specified above.E.g. by setting the value "90", the SIS will alert the operator after 90% of two years,i.e. 657 days after a calendar time "Reset" was made the last time.Gearbox warningA percentage of the gearbox service interval as calculated by the system. E.g. bysetting the value "90", the SIS will alert the operator after 90% of the expectedservice interval of each gearbox.The robot system automatically detects and stores all required variables to calculatethe expected service interval (estimated remaining lifetime) of each gearbox. Thisis done by extrapolating data from earlier operation into a function of time, usinga formula including:• input and output torque• gearbox spindle speed• other variables206 Product manual - IRB 6650S3HAC020993-001 Revision: Z© Copyright 2004-2018 ABB. All rights reserved.3 Maintenance3.7.3 SIS system parameters
