Emotron MSF 2.0 Softstarter

Analogue start/stop off-value [503]This menu is available if analogue start/stop is activated inmenu [500] (alternatives 6 or 7). If the reference signal onthe analogue/digital input exceeds the chosen off-level for alonger time than the analogue start/stop delay time chosenin menu [504], a stop will be performed.NOTE: If the selected analogue start/stop off-value isless than or equal to the on-value, a level below the offvalueat the analogue/digital input will cause a stop.NOTE: A stop will also be performed if the softstarterreceives a stop signal via remote control or serialcommunication.The analogue start/stop off-value is chosen as a percentage ofthe input signal range. This means if the analogue/digitalinput is configured for 0-10 V / 0-20 mA (alternative 6 inmenu [500]), 25% corresponds to 2.5 V or 5 mA. If theanalogue/digital input is configured for 2-10 V / 4-20 mA(alternative 7 in menu [500]), 25% corresponds to 4 V or8 mA.1 2Digital inputs16 17 183 4Digital inputsFig. 57 Wiring for digital inputs 1-4.The four digital inputs are electrically identical.The digitalinputs can be used for remote control of start, stop and reset,for choice of parameter set and for external alarm.Stop signalIf remote control is chosen in menu [200] (alternative 2),one digital input has to be configured for stop signal.5 0 3SettingNOTE: No starts will be allowed if the input set for stopsignal is open or if no input is configured for stop signal.75Analogue start/stop off-valueDefault: 75%Range: 0-100% of input signal range0-100 Analogue start/stop off-value.Analogue start/stop delay time [504]This menu is available if analogue start/stop is activated inmenu [500] (alternatives 6 or 7). In this menu the delaytime for starts and stops caused by the analogue referencesignal is set.5 0 41sAnalogue start/stop delay timeDefault: 1 sRange: 1-999 s1-999 Delay time for analogue start/stopSettingDigital inputsThe MSF 2.0 has four programmable digital inputs. Thefour inputs and their corresponding control supply terminalsare shown overleaf in Fig. 57.If the motor is running a stop will be performed accordingto the stop settings in menus [320] to [325] as soon as theinput configured for stop signal is opened. If more than oneinput is configured for stop signal, opening one of these willlead to a stop. Accordingly no starts will be allowed if any ofthese inputs is open.Start and reset signalThe digital inputs can be configured for several differentstart signals (start, start R or start L signal). Closing anyinput, which is configured for start, to its respective supplyterminal will start the motor. Moreover, a rising edge on anyinput configured for start is interpreted as a reset signal.NOTE: If more than one digital input is configured for anyof the start signals (start, start R or start L), thefollowing is valid:If two inputs, which are configured for different startsignals, are closed to their respective supply terminalsat the same time no start will be allowed. If the motor isrunning, a stop will be performed.If several digital inputs are configured for the same startsignal, closing any of these inputs will lead to a start.Naturally the softstarter has no way of controlling themotor’s running direction internally. However, if two mainscontactors – one for each phase sequence – are used, thesecan be controlled by the softstarter using the programmablerelays. The settings for the programmable relays in menus[530] to [532] correspond to the different start signals,which can be chosen for the digital inputs. In this way differentrunning directions for the motor can be chosen.80 Functional description Emotron AB 01-4135-01r2