GE 469 Instruction Manual

Also see for Masoneilan 469 Series: Instruction manual Instruction manual Instruction manual Communications guide Instruction manual

Contents

Application Example 469Motor Management RelayGetting Startedhttp://www.GEindustrial.com/multilin 1–27GE MultilinFor the Acceleration Timer element, enter the following values in the S7 MOTORSTARTING Z ACCELERATION TIMER page. Press the MESSAGE T key after each setpoint iscompleted to move to the next message.ACCELERATION TIMER TRIP: “Latched”ASSIGN TRIP RELAYS: “Trip”ACCELERATION TIMER FROM START: “13 s” – as shown in the acceleration curves at100% voltageFor the Start Inhibit element, enter the following values in the S7 MOTOR STARTINGZV START INHIBIT page. Press the MESSAGE T key after each setpoint is completed tomove to the next message.START INHIBIT BLOCK: “On”TC USED MARGIN: “25%”With these settings, the 469 relay prevents motor starting if there is insufficientthermal capacity for a successful motor start. Refer to Start Inhibit on page 5–55 foradditional information.There is not information available to set Starts/Hour, Time Between Starts, or theRestart Block features. Therefore, the following setpoints must be disabled:JOGGING BLOCK: “Off”RESTART BLOCK: “Off”S8 RTD Temperature The S8 RTD Temperature page contains the setpoints for the twelve (12) fieldprogrammable RTDs that are normally used for temperature monitoring. Thetemperature measured by each RTD can be compared to pickup values, and set toenergize Trip or Alarm outputs.For proper temperature monitoring, enter the RTD types in the S8 RTD TEMPERTURE ZRTD TYPES page. Press the MESSAGE T key after each setpoint is completed to moveto the next message.STATOR RTD TYPE: “100 Ohm Platinum”BEARING RTD TYPE: “100 Ohm Platinum”AMBIENT RTD TYPE: “100 Ohm Platinum”OTHER RTD TYPE: “100 Ohm Platinum” – default valueAs per the information provided above, there will be six RTDs, two per phase locatedin the Stator, and two Bearing RTDs, one to monitor the ambient temperature.For Stator Overtemperature protection, enter the following setpoints in the S8 RTDTEMPERTURE ZV RTD 1 to RTD6 menus:RTD #1 APPLICATION: “Stator”RTD #1 NAME: “ST Ph A1”RTD #1 ALARM: “Unlatched”ASSIGN ALARM RELAYS: “Alarm”RTD #1 ALARM TEMPERATURE: “135°C”RTD #1 HIGH ALARM: “Off”HIGH ALARM RELAYS: “Alarm” - default valueRTD #1 HIGH ALARM TEMPERATURE: “135°C” - default valueRTD #1 ALARM EVENTS: “On”RTD #1 TRIP: “Latched”RTD #1 TRIP VOTING: “RTD #5”ASSIGN TRIP RELAYS: “Trip”RTD #1 TRIP TEMPERATURE: “155°C”The settings for the other RTDs are entered in similar fashion. Refer to S8 RTDTemperature on page 5–57 for additional settings and additional information on RTDmonitoring.Other Settings a) Undervoltage ProtectionIn addition to the settings illustrated above, there will be cases in motor applicationswhere additional settings will be required, to monitor other system parameters suchas voltage levels.