Application Example 469Motor Management RelayGetting Startedhttp://www.GEindustrial.com/multilin 1–13GE Multilin– Pickup parameter– Operating curve, if applicable– Time dial or multiplier– Any additional intentional time delay– Directionality, if applicable• Define how many output contacts will be energized in response to a givenprotection function. Note that the 469 relay can be programmed to Trip orAlarm and, at the same time, to energize one, a combination, or all the 2auxiliary relays during the process.• Define if the output relays will be set as failsafe type.• Define if the 469 relay will be used to start the motor. If so, gather informationon the required conditions to execute the command.• Define if the 469 will be involved in the motor starting process, particularly onreduced voltage start applications.• Define if the 469 will be applied a multi speed applications.• Define if the relay will be used to monitor the status of the starter or breaker. Itis strongly recommended that the 469 be always programmed to monitor thestatus of the disconnecting device, by means of a dry contact connected to oneof the digital inputs of the relay. Use an auxiliary contact from the breaker orstarter either a normally open contact, 52a, which is normally in open positionwhen the disconnecting device is open, or a normally closed contact, 52b, whichis in close position when the breaker or starter is open.• If the 469 will be used to respond to digital inputs, record the followinginformation:– Digital Input name– Condition by which the digital input would be considered asserted– Function that the digital input will initiate within the 469• If the 469 will be used to perform monitoring functions and act upon certainconditions, record information such as:– minimum and maximum values– alarm and trip values– time delays• It is important to familiarize yourself with the relay protection and controlfunctions before setting up the relay.To begin, simply power on the unit and follow the instructions in this tutorial.Assume the following system characteristics and that the 469 setpoints areunaltered from their factory default values.Refer to the following figures for schematics related to this application example.
