Emotron MSF 2.0 Softstarter

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9. Protection and alarmMSF 2.0 is equipped with functions for motor protection,process protection and protection of the softstarter itself.9.1 Alarm codesDifferent alarm codes are used for the different errors, seeTable 17 for a description of the alarm codes used. When analarm occurs, this is indicated with the appropriate alarmmessage flashing in the display. If more than one alarm isactive at the same time, the alarm code for the last alarm ispresented on the display. The alarm code for each occurringalarm is also saved in the alarm list in menus [800] to [814].9.2 Alarm actionsFor most protection methods a proper action can be chosento be performed if the relevant alarm occurs. The followingalternatives are available as alarm actions (all alternativesmay not be available for all protection methods - checkTable 17):OffThe alarm is deactivated.WarningThe appropriate alarm code is flashing in the display andrelay K3 is activated (for default configuration of the relays)if an the alarm occurs. However, the motor is not stoppedand operation continues. The alarm message in the displaywill disappear and the relay will be reset when the alarm hasdisappeared. The alarm may also be reset manually. This settingalternative may be useful if it is desired to control operationin alarm state by an external control unit.CoastThe appropriate alarm code is flashing in the display andrelay K3 is activated (for default configuration of the relays)if an the alarm occurs. The motor voltage is automaticallyswitched off. The motor is freewheels until it stops.This setting alternative is useful if continuous running oractive stopping could harm the process or the motor. Thismay be applicable for applications with very high inertia thatuse braking as the normal stop method. In this case it maybe a good idea to choose Coast as alarm action on thermalmotor protection alarm, because continuous running orbraking could harm the motor seriously when this alarm hasoccurred.StopThe appropriate alarm code is flashing in the display andrelay K3 is activated (for default configuration of the relays)if an alarm occurs. The motor is stopped according to thestop settings in menus [320] to [325].This setting is useful for applications where a correct stop isimportant. This may apply to most pump applications, asCoast as an alarm action could cause water hammer.Alarm BrakeThe appropriate alarm code is flashing in the display andrelay K3 is activated (for default configuration of the relays)if an alarm occurs. The brake function is activated accordingto the braking method chosen in menu [323] and the motoris stopped according to the alarm brake settings in menus[326] to [327] (braking strength and braking time). If alarmbraking is deactivated in menu [326] and Alarm Brake ischosen as an alarm action, the action will be the same asdescribed above for Coast.Alarm Brake as an alarm action may mainly be used in combinationwith External alarm, where an external signal isused to initiate a quick stop with a higher braking strengthand a shorter braking time compared to normal operation.SpinbrakeThe functionality for the Spinbrake alternative is the same asdescribed above for the Alarm Brake alternative. However, ifSpinbrake is chosen, braking can also be initiated from aninactive state. This means the softstarter can catch a freewheelingmotor and brake it down to standstill.The Spinbrake alternative is only available for Externalalarm. It may be useful e.g. for test running of planers andbandsaws after tool exchange. It may be desirable to acceleratethe tool up to a specific speed and then leave it coastingto check if there is any unbalance. In this case it is possible toactivate braking immediately by opening the external input.In Table 17 below the alarm actions available for each alarmtype are specified in detail.9.3 ResetFor the following explanations it is important to distinguishbetween Reset and Restart. Reset means that the alarm messageon the display disappears and the alarm relay K3 (fordefault configuration of the relays) is deactivated. If theoperation has been interrupted due to an alarm the softstarteris prepared for a Restart. However, giving a Reset signalwithout giving a new start signal will never lead to astart.The Reset signal can be given via control panel, remotely orvia serial communication depending on the control sourcechosen in menu [200]. Regardless of the chosen controlmethod, it is always possible to give a Reset signal via controlpanel.If an alarm occurs whose alarm action is configured forWarning (see description of alarm actions above), the alarmwill automatically be reset as soon as the failure disappears.The alarm may also be reset manually by giving a Reset signalas described above.If operation has been interrupted due to an alarm, a Resetsignal and a new start signal may be needed to Restart themotor. However, some alarms are automatically reset when anew start signal is given. Table 17 covers all alarm types andEmotron AB 01-4135-01r2 Protection and alarm 97
whether they need a Reset signal (manual reset) or if they arereset automatically when a new start signal is given.An alarm can always be reset by giving a Reset signal, even ifthe failure that caused the alarm has not disappeared yet.Giving a Reset will cause the alarm message on the display todisappear and the alarm relay K3 to be deactivated (fordefault configuration of the relays). However, if operationhas been interrupted due to an alarm, a Restart will not bepossible until the failure has disappeared. If a new start signalis given while the failure still is active, the alarm messagewill appear flashing in the display and the alarm relay K3will be activated again (for default configuration of therelays).MSF 2.0 is also provided with an Auto reset function. Thisfunctionality is described in detail in section 8.5, page 52.9.4 Alarm overviewTable 17Alarm overviewF1F2AlarmcodeAlarm description Alarm action Protection system ResetPhase input failure.Thermal motor protectionWarningCoastOffWarningCoastStopAlarm BrakeMotor protection(menu [230])Motor protection(menu [220])Automatic Reset when new start signal isgiven.Separate Reset signal needed.F3 Soft start overheated Coast Separate Reset signal needed.F4F5F6F7F8F9F10Current limit start timeexpired.Locked rotor alarm.Max power alarm.Min power alarm.Voltage unbalancealarm.Overvoltage alarm.Undervoltage alarm.OffWarningCoastStopAlarm BrakeOffWarningCoastOffWarningCoastStopAlarm BrakeOffWarningCoastStopAlarm BrakeOffWarningCoastStopAlarm BrakeOffWarningCoastStopAlarm BrakeOffWarningCoastStopAlarm BrakeMotor protection(menu [231])Motor protection(menu [228])Process protection(menu [400])Process protection(menu [401])Process protection(menu [430])Process protection(menu [433])Process protection(menu [436])Automatic Reset when new start signal isgiven.Separate Reset signal needed.Separate Reset signal needed.Separate Reset signal needed.Automatic Reset when new start signal isgiven.Automatic Reset when new start signal isgiven.Automatic Reset when new start signal isgiven.98 Protection and alarm Emotron AB 01-4135-01r2
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Emotron MSF 2.0SoftstarterInstructi
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Safety instructionsSafetyThe softst
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ContentsSafety instructions .......
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1. General informationThis manual d
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1.8 Glossary1.8.1 AbbreviationsIn t
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2. DescriptionT/T nn/n sIn this cha
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The disadvantage of the star-delta
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T/T n2,521,510,5Torquef 3
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3. MountingThis chapter describes h
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Mounting schemesMSF-017 to MSF-250T
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4. ConnectionsThe description of in
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Fig. 20 Connection of MSF-110 to MS
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Fig. 22 Connection of MSF-310 to MS
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4.3 Minimum wiringThe figure below
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5. How to get startedThis chapter b
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5.5 Setting the start commandAs def
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6. Applications and functions selec
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Table 10Applications Rating ListApp
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Table 11Application Functions ListA
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38 Applications and functions selec
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The control panel is used for selec
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7.7 Overview of softstarteroperatio
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8.1 General settingsGeneral setting
Page 49 and 50: Nominal motor speed.2 1 314Nominal
Page 51 and 52: Overload time (s)Normal loadInterna
Page 53 and 54: NOTE: Check that the motor current
Page 55 and 56: 8.4.3 Reset to factory setting [243
Page 57 and 58: External alarm auto reset [257]This
Page 59 and 60: With voltage control the output vol
Page 61 and 62: To optimize the start, use the sett
Page 63 and 64: Torque boost current limit [316]In
Page 65: NOTE: For several start/stops it is
Page 68 and 69: Slow speed controlled by an externa
Page 70 and 71: JOG commands can be given via analo
Page 72 and 73: Power Factor Control PFC [341]Durin
Page 74 and 75: Max power alarm [400]In this menu m
Page 76: Min power alarm response delay [410
Page 79 and 80: Undervoltage level [437]This menu i
Page 81 and 82: Relay outputsPTC inputPTCCurrent tr
Page 83 and 84: Analogue start/stop off-value [503]
Page 85 and 86: Digital input 3 function [512]In th
Page 87 and 88: Scaling analogue output, max [523]T
Page 89 and 90: K1 contact function [533]In this me
Page 91 and 92: !CAUTION: Very high currents can ar
Page 93 and 94: For applications which use the reve
Page 95 and 96: It is possible to use just one digi
Page 97 and 98: Line main voltage L1-L38.10.2 Statu
Page 99: 8.11 Alarm listThe alarm list is ge
Page 103 and 104: 100 Protection and alarm Emotron AB
Page 105 and 106: Observation Fault indication Cause
Page 107 and 108: Observation Fault indication Cause
Page 109 and 110: 106 Maintenance Emotron AB 014135-0
Page 111 and 112: 12.3.1 Cable kit for external curre
Page 113 and 114: 110 Options Emotron AB 01-4135-01r2
Page 115 and 116: Table 19Typical motor power at main
Page 117 and 118: Table 21Typical motor power at main
Page 119 and 120: 13.2 General electrical specificati
Page 121 and 122: Table 25Power lossesModelPower loss
Page 123 and 124: 13.5 Derating at highertemperatureB
Page 125 and 126: 13.9 Semi-conductor fusesAlways use
Page 127 and 128: Table 27Parameter listMenuno.Functi
Page 135: Operation R .......................
Page 138: Emotron AB, Mörsaregatan 12, SE-25
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Emotron MSF 2.0 Softstarter

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