Siemens F8 Autoreset SAMMS-MVX Only, F9 Phase Unbalance Protection, F11 Emergency Restarting

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3 Operating the SAMMS-MV Device

F8 - Autoreset (SAMMS-MVX Only)

1.Press the LIST key to view the active autoreset setting, either ON or OFF. If autoreset is ON, the SAMMS-MV device automatically resets 30 seconds after an overload or exter- nal trip. At this time the motor can start. If autoreset is OFF, you must manually reset the overload relay with the Reset/ Test button before restarting the motor. The factory default is OFF.

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

3.To change the setting, press the UP or DOWN key to select the new setting.

4.Press and hold the ENTER key. If the displayed setting is ON, go to step 6. If the displayed setting is OFF go to step 5.

5.Release the ENTER key while the display appears blank. When you release the key, the setting changes to OFF. Go to step 6.

6.Release the ENTER key. “SUrE” appears on the display.

7.Press the ENTER key to make the change to ON.

Note: The reason for displaying “SUrE” and requiring you to press the ENTER key a second time is because the motor can restart immediately after an overload trip if autoreset is ON.

8.If you made an incorrect selection, repeat steps 3 through 7.

9.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.

10.Press the (F)unction key to step through other functions.

F9 - Phase Unbalance Protection

1.Press the LIST key to view the active phase unbalance protection setting (ON or OFF). The factory default setting is ON.

a.When phase unbalance protection is enabled (ON), cur- rent unbalances of greater than 40% accelerate overload tripping. The Phase Unbalance LED flashes for unbal- ances between 20% and 40%. It remains steadily illumi- nated for unbalances greater than 40%.

b. When phase unbalance protection is disabled (OFF), the Phase Unbalance LED remains off, unbalanced condi- tions have no effect on protection, and F17 (Display Unbalanced Current) displays OFF.

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.

F10 - Display Time to Restart

1.Press the LIST key to view the time remaining before the motor can be restarted. The time is displayed in seconds. While the motor is cooling, the time to restart counts down from the maximum winding or rotor temperature allowed to the steady-state, full-load temperature. The display is al- ways zero if the motor is not in a start inhibit mode. If a time to restart displays, the motor can only be restarted by an emergency restart (see F11).

2.The UP, DOWN, and ENTER keys are disabled.

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

F11 - Emergency Restarting

1.Press the LIST key to view the emergency restart setting (ON or OFF). The factory default is OFF. With emergency restart enabled (ON), you can restart the motor after the overload relay is reset (manually or automatically), even when the time to reset is not zero. When you initiate an emergency restart, the motor conditions are reset to zero to simulate a com- pletely cold start. The emergency restart function is auto- matically disabled after any restart (emergency or normal), and you must manually re-enable the emergency restart function by setting F11 to ON.

2.Emergency restart can be enabled in either the program mode or the display 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. If the selected setting is ON, skip to Step 5.

4.If the selected setting is OFF, the display blanks while the ENTER key is pressed. When the ENTER key is released, the setting is changed to OFF. Skip to Step 6.

5.If the selected setting is ON, “SUrE” is displayed when you release the ENTER key. Press ENTER again to make the change to ON.

Note: The motor can be damaged if restarted before it is allowed to cool. The “SUrE” display allows you to reconsider

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Contents SAMMS-MV Qualified Person Contents Field Service Operation Signal WordsQualified Person About this Manual Advanced Protection for Medium-Voltage Motors SAMMS-MV Device ModelsOverload Protection Using the Standardized Control PanelProgramming Control Circuits SAMMS-MV Model Change settings requires password Yes Remote inputs OneOutputs One Light barsInstalling the SAMMS-MV Device Full voltage non-reversing connection diagram Grounding the Device SAMMS-MV device communications connections Using the Reset/Test Push Button Password ProtectionPerforming a Lamp Test Performing an Overload Relay TestInput Devices Output DevicesCustom Ladder Diagrams Ladder Diagrams Library of Standard Ladder DiagramsSAMMS-MVX Standard control circuits PB1 PB2 PB3 PB4 PB5 PB6 Motor Ambient Temperature Ridethrough Upon Loss of Power SAMMS-MVX OnlyIncomplete Sequence Intelligent Reduced-Voltage Starting SAMMS-MVX OnlyODP motor thermal signature Protection Curves and Overload Classes Seconds Operating the SAMMS-MV 11 Motor protection graph Phase Unbalance Ultimate Trip Level and Service FactorDual Overload Protection SAMMS-MVX Only Jam Protection SAMMS-MVX OnlyRepetitive Starts Ground Fault DetectionStart Inhibit Cooling Time Constants12 Multi-start scenario for an ODP motor Using the Hand Held Communicator HHC Autoreset After a Trip SAMMS-MVX OnlyEmergency Restarting Function KeyFunction Number 5A CT primary current low speed if used Service factor5A CT primary current if used Full load current for OLR No Motor type Overload trip class class 2 throughUsing the SAMMS-MV Device Func- tions Using the Enter KeyUP and Down Keys ON/OFF Default Value Select ground fault pick-up currentMeans warning Select jam pickup current 120-400% Iflc F24 Loss of Load13 Entering and changing passwords F0 Ambient Temperature Program Mode/PasswordsSAMMS-MV Functions F1 Control Circuit Number and Incomplete Se- quence StatusF3 Size for Overload Relay #2 SAMMS-MVX Only Overload Setting Step Default Relay Size RangeF4 Full-Load Current for Overload Relay #1 18 to 72AF6A Motor Type F6 Service FactorF7 Overload Trip Class F7A Cold Stall TimeF9 Phase Unbalance Protection F8 Autoreset SAMMS-MVX OnlyF10 Display Time to Restart F11 Emergency RestartingF12A Ground Fault Pickup Current F12 Ground Fault Protection or WarningSize Pickup Current Default H3A-H3C 7A-I FLC 10A 20A F13 Set Programmable Timer #1F16 Trip Current F21 Reset Motor DataF17 Current Unbalance F18 Display Total Elapsed Run Time of the MotorF22 Process Current Warning Level SAMMS-MVX Only F25 Percentage of Motor Winding TemperatureF23 Jam Protection SAMMS-MVX Only F23A Jam Pickup Current SAMMS-MVX OnlyF27 Address F26 Baud RateTroubleshooting 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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