Siemens SAMMS-MV F12 Ground Fault Protection or Warning, F12A Ground Fault Pickup Current

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3 Operating the SAMMS-MV Device

your actions before pressing the ENTER key a second time to select the ON setting.

6.Repeat Step 3 if you select an incorrect setting.

7.If you are in the program mode, press and hold the (F)unction key for several seconds to exit. The display will show “Prog.” Press the UP or DOWN key to change to the display mode.

8.Press the (F)unction key to go to other functions.

F12 - Ground Fault Protection or Warning

1.Press the LIST key to view the active ground fault detection setting (ON or OFF). The factory default setting is warning (OFF), and the other setting is protection (ON).

a.When warning (OFF) is selected, the Ground Fault LED flashes if the ground current increases beyond the pickup level. The LED stops flashing as soon as the current drops below the pickup level.

b.When protection (ON) is selected, a ground current above the pickup level will cause a trip. The motor stops, and the Ground Fault LED is steadily lit. You must reset the unit before the motor can be restarted.

2.To change the setting, you must be in program mode.

3.To change the setting, press the UP or DOWN key to display the setting options, then press ENTER to select the setting that is shown. The display blanks while the ENTER key is pressed.

4.Repeat Step 3 if you select an incorrect setting.

5.To exit the program mode, press and hold the (F)unction key for several seconds. The display will show “Prog.” Press the UP or DOWN key to change to the display mode.

6.Press the (F)unction key to go to other functions.

F12A - Ground Fault Pickup Current

1. Press the LIST key to view the active ground fault pickup current in use. The range of values and default values are shown in the table below:

Size

Pickup Current

Default

 

 

 

H3A-H3C

7A-I FLC

10A

 

 

 

H6

7A-I FLC

20A

 

 

 

2. To change the setting, you must be in program mode.

3. To change the setting, press the UP or DOWN key to display the setting options, then press ENTER to select the setting that is shown. The display blanks while the ENTER key is pressed.

4. Repeat Step 3 if you select an incorrect setting.

5. To exit the program mode, press and hold the (F)unction key for several seconds. The display will show “Prog.” Press the

UP or DOWN key to change to the display mode.

6. Press the (F)unction key to go to other functions.

F13 - Set Programmable Timer #1

1.Press the LIST key to view the active setting for timer #1. The default setting is OFF. If the timer is not used in the control circuit, OFF is displayed and the UP, DOWN, and ENTER keys are disabled. OFF is also displayed for a setting of 0 seconds. The timer may be adjusted from 0 - 200 seconds in one second increments.

2.To change the setting, you must be in program mode.

3.To change the setting, press the UP or DOWN key until the desired value is displayed then press the ENTER key to select the setting. The display blanks while the ENTER key is pressed.

4.Repeat Step 3 if you select an incorrect setting.

5.To exit the program mode, press and hold the (F)unction key for several seconds. The display will show “Prog.” Press the UP or DOWN key to change to the display mode.

6.Press the (F)unction key to go to other functions.

F14 - Set Programmable Timer #2

1.Press the LIST key to view the active setting for timer #2. The default setting is OFF. If the timer is not used in the control circuit, OFF is displayed and the UP, DOWN, and ENTER keys are disabled. OFF is also displayed for a setting of 0 seconds. The timer may be adjusted from 0 - 200 seconds in one second increments.

2.To change the setting, you must be in program mode.

3.To change the setting, press the UP or DOWN key until the desired value is displayed then press the ENTER key to select the setting. The display blanks while the ENTER key is pressed.

4.Repeat Step 3 if you select an incorrect setting.

5.To exit the program mode, press and hold the (F)unction key for several seconds. The display will show “Prog.” Press the UP or DOWN key to change to the display mode.

6.Press the (F)unction key to go to other functions.

F15 - Display Current

1.Press the LIST key to view the instantaneous line currents or the average instantaneous line current. (The LIST key is disabled for full voltage, part-winding starters.) For instanta- neous line currents, the display shows the phase designator (A, b, or C) in the left-most character followed by three significant digits of the value of the current. For the average instantaneous line current, four digits are displayed without a phase designator.

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Contents SAMMS-MV Qualified Person Contents Qualified Person Signal WordsField Service Operation About this Manual SAMMS-MV Device Models Advanced Protection for Medium-Voltage MotorsProgramming Control Circuits Using the Standardized Control PanelOverload Protection Outputs One Change settings requires password Yes Remote inputs OneSAMMS-MV Model Light barsInstalling the SAMMS-MV Device Full voltage non-reversing connection diagram Grounding the Device SAMMS-MV device communications connections Performing a Lamp Test Password ProtectionUsing the Reset/Test Push Button Performing an Overload Relay TestOutput Devices Input DevicesLadder Diagrams Library of Standard Ladder Diagrams Custom Ladder DiagramsSAMMS-MVX Standard control circuits PB1 PB2 PB3 PB4 PB5 PB6 Incomplete Sequence Ridethrough Upon Loss of Power SAMMS-MVX OnlyMotor Ambient Temperature Intelligent Reduced-Voltage Starting SAMMS-MVX OnlyODP motor thermal signature Protection Curves and Overload Classes Seconds Operating the SAMMS-MV 11 Motor protection graph Dual Overload Protection SAMMS-MVX Only Ultimate Trip Level and Service FactorPhase Unbalance Jam Protection SAMMS-MVX OnlyStart Inhibit Ground Fault DetectionRepetitive Starts Cooling Time Constants12 Multi-start scenario for an ODP motor Emergency Restarting Autoreset After a Trip SAMMS-MVX OnlyUsing the Hand Held Communicator HHC Function Key5A CT primary current if used Full load current for OLR No 5A CT primary current low speed if used Service factorFunction Number Motor type Overload trip class class 2 throughUP and Down Keys Using the Enter KeyUsing the SAMMS-MV Device Func- tions ON/OFF Means warning Select ground fault pick-up currentDefault Value Select jam pickup current 120-400% Iflc F24 Loss of Load13 Entering and changing passwords SAMMS-MV Functions Program Mode/PasswordsF0 Ambient Temperature F1 Control Circuit Number and Incomplete Se- quence StatusF4 Full-Load Current for Overload Relay #1 Overload Setting Step Default Relay Size RangeF3 Size for Overload Relay #2 SAMMS-MVX Only 18 to 72AF7 Overload Trip Class F6 Service FactorF6A Motor Type F7A Cold Stall TimeF10 Display Time to Restart F8 Autoreset SAMMS-MVX OnlyF9 Phase Unbalance Protection F11 Emergency RestartingSize Pickup Current Default H3A-H3C 7A-I FLC 10A 20A F12 Ground Fault Protection or WarningF12A Ground Fault Pickup Current F13 Set Programmable Timer #1F17 Current Unbalance F21 Reset Motor DataF16 Trip Current F18 Display Total Elapsed Run Time of the MotorF23 Jam Protection SAMMS-MVX Only F25 Percentage of Motor Winding TemperatureF22 Process Current Warning Level SAMMS-MVX Only F23A Jam Pickup Current SAMMS-MVX OnlyF26 Baud Rate F27 AddressTroubleshooting Error Condition Troubleshooting Guide Error Condition Appendix a Technical Specifications Over load Spec ificat ions Stat ist ica l Data Dimensions Catalog Number SAM6 Switch # Function Position 375 Siemens Energy Automation, Inc
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