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Manual No. MCC-3298 SAMMS-L V Siemens Advanced Motor Master System for Low V oltage Motors User's Manual 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ™.
The use of unauthorized parts in the repair of the equipment or tampering by unqualified personnel will result in dangerous conditions which will cause severe personal injury or equipment damage.
1 1 Introduction ............................................. 2 1.1 About this Manual ............................................ 3 1.2 About the SAMMS-L V Device ........................... 3 1.2.1 The SAMMS-L V Device Models .............. 4 1.2.2 Advanced Pr otection for Low-V oltage Motors .
2 1 Intr oduction 1 Intr oduction The SAMMS-LV electronic motor control and protection device is designed and manufactured in accordance with the latest applicable provisions of the National Electric Code, Underwriters Laboratories Standards and Procedures, NEMA Standards, and the National Electric Safety Code.
3 1 Intr oduction 1.1 About this Manual This manual introduces you to the Siemens Advanced Motor Master System (SAMMS-LV) motor protection and control relay which incorporates protection designed for low voltage motors.
4 1 Intr oduction 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Figure 1.1 SAMMS-LV, front view 1.2.1 The SAMMS-LV Device Models The SAMMS-LV device is available in two models: SAMMS-LVE and SAMMS-LVX. Each model meets the various demands of industrial and commercial specifications and installations.
5 1 Intr oduction Figure 1.2 Hand-Held Communicator (HHC) 1.2.3 Overload Protection The motor model offers the selection of overload classes 2 through 23. The SAMMS-LV device offers more accurate motor protection than traditional thermal overload and most electronic motor protection devices.
6 1 Intr oduction SAMMS -LV Model SAMMS-LV E SAMMS-LVX Applicatio n Across-the-line, non reversing X X Across-the-line, reversing X Two-speed, one winding, constant or variab le t orqu e X Two-speed, .
7 2 Installing the SAMMS-L V Device 2 Installing the SAMMS-L V Device This section provides instructions for installing the SAMMS-LV device. You should adapt these instructions to suit the needs of your installation and equipment.
8 2 Installing the SAMMS-L V Device Figure 2.1 Full voltage non-reversing connection diagram.
9 2 Installing the SAMMS-L V Device 2.4.2 Grounding the Device As stated in Guideline 5, ground each motor controller at a single ground point. The grounding path to earth must be permanent and continuous. It must also be able to safely conduct ground fault currents that may occur in the system to ground through minimum impedance.
10 2 Installing the SAMMS-L V Device enables the SAMMS-LV to communicate with a remote super- visory device. Examples of the remote supervisory device include the Power Monitor display unit, a standar.
11 3 Operating the SAMMS-L V Device 3 Operating the SAMMS-L V Device This section explains how to operate the SAMMS-LV device. Operation of the device requires that the unit have control power (12VAC) applied to terminals 5-6. Most operations also require use of the Hand-Held Communicator (HHC).
12 3 Operating the SAMMS-L V Device 3.4 Output Devices You can use the following SAMMS-LV output devices: AC Outputs The SAMMS-LVX device provides up to three AC coil drivers capable of driving contactors up to size 6, while SAMMS-LVE provides one coil driver.
13 3 Operating the SAMMS-L V Device 3.6 Ladder Diagrams 3.6.1 Library of Standard Ladder Diagrams The SAMMS-LV library of more than 70 ladder diagrams covers most standard motor control applications. Table 3.3 lists the standard control circuits and the input and output assignments for the library.
14 3 Operating the SAMMS-L V Device 12 3 4 5 6 7 8 9 10 1 1 12 13 14 15 16 SAMMS-L VX LED LED on LED Flashing Current Unbalance Impending Trip Overload Trip Incomplete Sequence External Trip Alarm CPU.
15 3 Operating the SAMMS-L V Device Input Assignments Starter Type Progra m Block Control Type PB1 PB 2 PB3 PB4 PB 5 PB6 Preloaded in SAMMS-LVE, can be downloaded in SAMMS-LVX FVNR PB10 LOCAL, 2-WIRE .
16 3 Operating the SAMMS-L V Device Input Assignments Starter Type Program Block Control Type PB1 PB2 PB 3 PB4 PB 5 PB6 Avail abl e wi th SAMMS-LVX only RVA (Auto TX) Sizes 2-4 PB46 LOCAL, 2-WIRE OFF .
17 3 Operating the SAMMS-L V Device 3.7 Incomplete Sequence Sometimes the motor contactors do not respond in a timely manner to start, stop, transition, speed or direction change commands from the controller.
18 3 Operating the SAMMS-L V Device Figure 3.5 ODP motor thermal signature.
19 3 Operating the SAMMS-L V Device 10000 1000 100 10 1 .1 11 0 SECONDS I ratio I FLC 10000 1000 100 10 1 .1 11 0 SECONDS I ratio I FLC Figure 3.6 Time-current characteristic curve for cold motors with SF=1.00 Figure 3.7 Time-current characteristic curve for warm motors with SF=1.
20 3 Operating the SAMMS-L V Device Figure 3.9 Time-current characteristic curve for warm motors with SF=1.15 Figure 3.8 Time-current characteristic curve for cold motors with SF=1.15 10000 1000 100 10 1 .1 11 0 SECONDS I ratio I FLC 10000 1000 100 10 1 .
21 3 Operating the SAMMS-L V Device .1 1 I I FLC ratio 61 0 Motor starting current 600% rated full load current Jam and loss of load protection persistence delay (5 times overload class) Class 5 curve.
22 3 Operating the SAMMS-L V Device of 10 guarantees that a current of 600% of I FLC will cause a trip in 10 seconds or less. In the SAMMS-LV, the protection curves are designed to cause a trip in 90% to 100% of the class time for a current of 600% of I FLC .
23 3 Operating the SAMMS-L V Device 3.19 Stator Protection By selecting the overload class slightly greater than or equal to the motors starting time, the motor model defines an energy I 2 t value. In this value, I equals 600% of the motors full load current and t equals the overload class selected.
24 3 Operating the SAMMS-L V Device the motor trips and the Ground Fault LED illuminates until reset. If you selected warning (OFF), the Ground Fault LED flashes as long as the fault current exceeds the pickup level. Table 3.6 lists the pickup levels for each overload size.
25 3 Operating the SAMMS-L V Device SAMMS- LV Functi on Numb er Function SAMMS- LVX SAMMS- LVE F0 Ambient temperature • • F1 Control circuit number • • F2 Size for over load No. 1 • • F3 Size for over load No. 2 (low speed) • F4 Full load current for OLR No.
26 3 Operating the SAMMS-L V Device 3.27.1 The (F)unction Key When you press the (F)unction key, the function mode is selected and the HHC displays the number of the selected function preceded by F. With the HHC in the function mode, use the UP and DOWN keys to step from one function to the next.
27 3 Operating the SAMMS-L V Device Funct ion Num ber Funct ion Des crip ti on Range Step Size Default Value F0 Select ambient temperature. 0 - 70º C 5º C 40º C F1 Display (or change for SAMMS-LVE) the control circuit number, Enable/disable incompl ete sequence status.
28 3 Operating the SAMMS-L V Device Function Numb er Function Description Range Step Si ze Default Value F12 Select ground f ault protection or warning. ON mea ns p rotectio n; OF F means w arning. ON/OFF N/ A OFF F12A Select ground f ault pick-up curre nt valu e.
29 3 Operating the SAMMS-L V Device Function Numb er Function Description Range Step Size Default Value F18 Display the elap sed motor r unning time in tens of hours. 0.0 - 6553 (x 10 hr.) 0.1x10hr. up to 999.9, 1x10hr. up to 6553 N/A F19 Display the number of motor starts in tens of hours.
30 3 Operating the SAMMS-L V Device Figure 3.13 Entering and changing passwords F Press and hold F key UP DOWN Display mode Program mode ENTER ENTER UP DOWN To select function for viewing Prompt for p.
31 3 Operating the SAMMS-L V Device To change the password: 1. Enter the password as described above. 2 . With the password entered and the display showing - - - -, press the UP or DOWN key to enter change mode. The display reads CH g . 3.
32 3 Operating the SAMMS-L V Device F4 - Full-Load Current for Overload Relay #1 1. Press the LIST key to view the active full-load current setting for overload relay #1. The setting should normally be the full load current as shown on the motor nameplate (high speed for two-speed machine).
33 3 Operating the SAMMS-L V Device 6. Press the (F)unction key to step through to another function. F6 - Service Factor 1. Press the LIST key to view the active service factor, 1.0 or 1.15. The factory default is 1.15. A service factor of 1.15 adjusts the overload trip thresholds up by 15% over their values for a service factor of 1.
34 3 Operating the SAMMS-L V Device 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.
35 3 Operating the SAMMS-L V Device 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 Range Default Pickup Current 1A 1.
36 3 Operating the SAMMS-L V Device F17 - Current Unbalance 1. Press the LIST key to view the percentage current unbal- ance. When unbalance protection is disabled (F9 = OFF), OFF is displayed.
37 3 Operating the SAMMS-L V Device 3. To change the protection setting, press the UP or DOWN key to display ON or OFF, then press ENTER to select the setting that is shown. The display blanks while the ENTER key is pressed. 4. Return to Step 3 if you select an incorrect setting.
38 3 Operating the SAMMS-L V Device F27 - Address 1. Press the LIST key to view the active setting. Allowable addresses are 1-224. The factory default is 200. 2. To change the setting, you must be in program mode. 3. Press the UP or DOWN key to scroll through the range of settings, until the selected setting appears on the display.
39 4 T roubleshooting 4 T roubleshooting the SAMMS-L V Device This section discusses how to troubleshoot the SAMMS-LV device. The troubleshooting guide below lists basic errors that can occur while operating the SAMMS-LV device. Use the guide as necessary to solve error conditions as they arise.
40 4 T r oubleshooting Troubleshooting Guide Error Condition Main Cause Remedy Incomplete Sequence Indicates the SAMMS-LV unit does not detect current one second after a start command, or it detects current one second after a stop command. 1. 2. 3. 4.
41 4 T roubleshooting Troubleshooting Guide Error Condition Main Cause Remedy Ground Fault Indicates the ground fault current exceeded the threshold. If ground fault protection was selected, the ground fault LED illuminates solidly and the motor stops.
42 Appendix A T echnical Specifications Appendix A - Technical Specifications of the SAMMS-LV Device Motor Control Specifications Inputs SAMMS-LVX: Six pushbuttons Four remote inputs SAMMS-LVE: Six pu.
43 Appendix A T echnical Specifications FLC FLC FLC FLC FLC FLC FLC FLC FLC FLC FLC FLC FLC FLC FLC FLC FLC FLC Overload Specifications Overload classes Overload classes 2 through 23 with one second increments. Trip Characteristics Tripping time at 6 x I = 95% of the overload class (±5%).
44 Appendix A T echnical Specifications Software Configured Control Devices Timers 4 Timing range Timers 1 and 2: 0 - 200 seconds selectable Timer 3: 1 second fixed value Timer 4: 30 seconds fixed val.
45 Appendix A T echnical Specifications Dimensions SAMMS-LV 6.25 inches W; 6.00 inches H; 2.125 inches D Handheld Communicator 3.15 inches W; 5.7 inches H; 1.37 inches D Environments Operating temperature range -25º C to +70º C. Storage temperature -40º C to +85º C.
46 Appendix A T echnical Specifications Figure A-1 Figure A-1 Figure A-1 Figure A-1 Figure A-1 Catalog Number and Configuration Breakdown for SAMMS-LV SAMMS-L V Model Number SAM4 - SAMMS-L VE SAM5 - SAMMS-L VX Control T ype L - Local and/or Remote Control Alarm Contacts Configuration (SAMMS-L VX Only) 0 - None 1 - Normally Closed Contacts (N.
47 Appendix A T echnical Specifications SAMMS-LVX LED LED on LED Flashing Current Unbalance Impending Trip Overload Trip Incomplete Sequence External Trip Alarm CPU Fault Ground Fault > 40% 20 - 40.
48 Appendix A T echnical Specifications Figure A-4 SAMMS 5A Auxiliary Current Transformer and SAMMS sensors (sizes 1A-6) SIZE A B C D E F G H I J 5A ACT 4. 2 5 1. 00 2. 9 4 0.5 0 3. 5 0 0.3 8 0. 19 - - - 1A 4. 2 5 1. 00 2. 9 4 0.5 0 3. 5 0 0.3 8 0. 19 - - - 1B 4.
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Siemens Energy & Automation, Inc. Switchgear and Motor Control Division P.O. Box 29503 Raleigh, NC 27626-0503 Bulletin MCC-3298 (New) 3M 0994FP Printed in U.
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