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Scaling analogue output, max [523]This menu is available if the analogue output is enabled inmenu [520]. In this menu the maximum value to be shownat the analogue output is chosen. The value is chosen as apercentage of I n , U n , P n or T n according to the output valuechosen in menu [521].5 2 31 00Default: 100%Range: 0-500%0-500 Maximum output value.SettingScaling analogue output, maxNOTE: The maximum value for scaling the analogueoutput is reset to the default value 100% if a new outputvalue is chosen in menu [521].Programmable relay outputsThe softstarter has three built-in relays, K1, K2 and K3. Allthree relays are programmable.For relay K1 (terminals 21 and 22) and K2 (terminals 23and 24) the contact function can be configured in menus[533] and [534] respectively to be normally open (NO) ornormally closed (NC). Relay K3 is a change-over relay withthree terminals (31-33), the NO functionality is availablebetween terminals 31 and 32, NC functionality between terminals32 and 33.The relays can be used to control mains contactors or abypass contactor or to indicate alarm conditions. As illustratedin Fig. 61 overleaf, the Operation setting (alternative1) should be chosen to activate the mains contactor bothduring start, full voltage operation and stop. If a by-passcontactor is used, this can be controlled by a relay with thesetting Full voltage (2). The settings Run (5) and Reversecurrent brake (4) are used when reverse current brake is chosenas stop method. In this case one relay has to be configuredfor Run and will control the mains contactor duringthe start and during full voltage operation. Another relay hasto be configured for Reverse current brake and will controlthe contactor with reversed phase sequence during braking.For security reasons the relay configured for Reverse currentbrake will not be activated until after a time delay of 500 msafter deactivation of the relay configured for Run.The settings Run R, Run L, Operation R and Operation Lare used for the start right/left functionality. Consult section8.9.4, page 87 for more information.Different alarms can also be indicated on the relay outputs.With the setting Power pre-alarms (alternative 3), both aMax power pre-alarm or a Min power pre-alarm occurringwill activate the relay. When Power alarms (10) is chosen as asetting, both a Max power alarm or a Min power alarm willactivate the relay. If so desired, the relays can instead be configuredto react only to one specific power alarm or prealarm(11 - 14).With setting All alarms (15) the relay will be activated forany alarm. As the power pre-alarms are not considered to bereal alarms, the relay will not react to those. With alternative16 chosen, the power alarms are excluded, too. When Externalalarm (17) is chosen, only an External alarm will activatethe relay. With setting 18, Auto reset expired, the relay willbe activated when an additional fault occurs after the maximumallowed number of auto reset attempts have been executed.This may indicate that external help is needed torectify a re-occurring fault (see description of Auto reset insection 8.5, page 52 for detailed information). With alternative19 the relay will indicate all alarms which need a manualreset. This includes all alarms which are not solved with anautomatic Auto reset, e.g. all alarms for which Auto reset isnot enabled and each alarm occurring after the maximumallowed number of auto reset attempts has been executed.MotorvoltageoperationFull voltageRunReversecurrentbrakeStarttimedelay0,1 sFullvoltageStoptimeTimeTimeTimeTimeFig. 61 The relay functions for operation, run and full voltage.84 Functional description <strong>Emotron</strong> AB 01-4135-01r2
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