How to configure the S811+ reduced voltage soft starter to
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1. Effective May 2013 Application Note AP039003EN New Information How to configure the S811 reduced voltage soft starter to disable overload on start Application Overview The S811 soft starter may be used to accomplish The S811 can be configured in a manner that motor starting by employing the reduced voltage will disable overload protection during the start method for many applications The overload ramp only When the motor achieves synchronous curve in the S811 firmware is modeled on a speed and the internal bypass contactors are NEMA B type motor application which is the closed overload protection is re established This most common In some cases this overload is accomplished by setting the Ovid On Start curve is not appropriate for achieving a successful parameter located in the Overload Config Menu to start ramp profile due to significant differences Disabled The soft starter will retain this change in starting current and or longer ramp times until such time as the parameter is changed by necessary to achieve synchronous speed As an editing the parameter via the menu structure or a example centrifuges that have a high rotating factory reset is performed mass typically require extended ramp times well in excess of 60 seconds As such a NEMA B motor profile is not appropriate for the current level vs time experienced by this type of application during the start process It is undesirable to disable any overload protec2. ltage is not required navigate to the Input Config parameter located in the Advanced I O Setup Menu Step 2 Press the ENTER key to enter the parameter list Step 3 Press the MORE key to enter the nout Config sub menu Step 4 Press the NEXT key to navigate to the Entry 1 default is 3 Jog parameter Step 5 Press the EDIT key to edit the selection Note that the number 3 is now highlighted Step 6 Press the INC key to navigate to the 70 Dis Ovid on Start parameter Step 7 Press the SAVE key to store this selection Step 8 Press the ESC key as necessary to navigate back to the desired display screen Note Other terminals may be used for this purpose but Terminal 2 is normally selected as most applications do not require a JOG function Terminal 2 default assignment after commissioning is completed Supporting documentation 811 User Manual 811 User Manual Reference Number MN03900001 E MN03902002E Additional help In the event that additional help is needed please contact the Technical Resource Center at 1 877 ETN CARE option 2 sub option 2 Eaton is a registered trademark All other trademarks are property of their respective owners
3. oltage is not required navigate to the Ovid on Start parameter located in the Protection Setup Menu Step 2 Press the ENTER key to enter the parameter list Step 3 Press the NEXT key as required to select the Ovid on Start parameter Step 4 Press the EDIT key to select this parameter for editing Step 5 Press the INC key to select Disabled Step 6 Press the SAVE key to store the value Press the ESC key to exit the parameter without saving the new value Step 7 Press the ESC key as necessary to navigate back to the desired display screen Eaton 1000 Eaton Boulevard Cleveland OH 44122 United States Eaton com 2013 Eaton All Rights Reserved Printed in USA Publication No APO39003EN Z13772 May 2013 E T N Powering Business Worldwide How to configure the 8811 voltage soft starter to disable overload on start 24 Vdc control voltage not maintained This process will disable Ovid on Start as long as 24 Vdc control voltage is applied to Terminal 2 of the control terminal block If 24 Vdc control voltage is removed or is lost for any reason this parameter will retain the Ovid on Start Disabled configuration as long as a 24 Vdc signal is applied to Terminal 2 of the control terminal block when a START command is received Parameters in these menus will also have a selection number in addition to a text message Procedure Step 1 With 24 Vdc control voltage applied to the soft starter mains vo
4. tions that provide motor protection during normal run operations The S811 soft starter may also be configured to disable overload protection during the start ramp only but the procedure is slightly different from what s done with the S811 When comparing the configurations of an S811 to an S811 two 2 changes occurred to the above parameter The first is that the Ovid On Start parameter is now located in the Protections menu of the 811 The second is that when 24 Vdc control voltage is removed for any reason after this parameter is set to Disable the parameter will revert back to the default value of Enable For applications requiring the parameter to be disabled permanently even in the event of loss of 24 Vdc control voltage an alternate method is available This method uses an input parameter to be programmed for this purpose and a 24 Vdc signal to be provided continuously ETN Powering Business Worldwide Application Note APO39003EN Effective May 2013 811 disable overload on start 24 Vdc control voltage maintained This process will disable Ovid on Start as long as 24 Vdc control voltage is applied to the soft starter If 24 Vdc control voltage is removed or is lost for any reason this parameter will revert back to the default setting of Enabled when the unit is re energized with 24 Vdc control voltage Procedure Step 1 With 24 Vdc control voltage applied to the soft starter mains v
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