Page 3 - Connecting Input and Output Devices to; Appendix A - Technical Specifications of the; Contents
1 1 Introduction ............................................. 2 1.1 About this Manual ............................................ 3 1.2 About the SAMMS-LV Device ........................... 31.2.1 The SAMMS-LV Device Models .............. 41.2.2 Advanced Protection for Low-Voltage Motors ............
Page 4 - Introduction; Signal Words
2 1 Introduction 1 Introduction 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 ...
Page 5 - About this Manual
3 1 Introduction 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. This manual also contains information for installing and operat- ing the device, ...
Page 6 - . 2 . 2 A d v a n c e d P r o t e c t i o n f o r
4 1 Introduction 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. Table ...
Page 7 - ware Manua; Using the Standardized Control Panel; Diagnostics; Installing the ACCESS
5 1 Introduction 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. This pro...
Page 9 - Installing the SAMMS-LV Device; Note; Where to Locate the Device
7 2 Installing the SAMMS-LV Device 2 Installing the SAMMS-LV Device This section provides instructions for installing the SAMMS-LVdevice. You should adapt these instructions to suit the needs ofyour installation and equipment. 2 . 1 R e c e i v i n g a n d S t o r i n g t h eSAMMS-LV Device Thorough...
Page 10 - Full voltage non-reversing connection diagram
8 2 Installing the SAMMS-LV Device Figure 2.1 Full voltage non-reversing connection diagram
Page 11 - Do not ground the SAMMS auxiliary current sensor (ACT)
9 2 Installing the SAMMS-LV Device 2.4.2 Grounding the Device As stated in Guideline 5, ground each motor controller at asingle ground point. The grounding path to earth must bepermanent and continuous. It must also be able to safelyconduct ground fault currents that may occur in the system toground...
Page 12 - communications and
10 2 Installing the SAMMS-LV Device enables the SAMMS-LV to communicate with a remote super-visory device. Examples of the remote supervisory deviceinclude the Power Monitor display unit, a standard personalcomputer running the Power Monitor PC communications and supervisory software, or Siemens Mic...
Page 13 - Operating the SAMMS-LV Device; Password Protection
11 3 Operating the SAMMS-LV Device 3 Operating the SAMMS-LV 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). Use o...
Page 14 - STATE
12 3 Operating the SAMMS-LV 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. Control Relays The device provides up to...
Page 15 - Library of Standard Ladder Diagrams
13 3 Operating the SAMMS-LV 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. Y...
Page 16 - Assignment of pushbuttons and light bars
14 3 Operating the SAMMS-LV Device 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SAMMS-LVX LED LED on LED Flashing CurrentUnbalance ImpendingTrip OverloadTrip IncompleteSequence ExternalTrip Alarm CPUFault GroundFault > 40% 20 - 40% > 110% > 100%< 110% Overload StartInhibit Trip Trip: Lossof Lo...
Page 17 - Standard control circuits
15 3 Operating the SAMMS-LV Device Input Assignments Starter Type Program Block Control Type PB1 PB2 PB3 PB4 PB5 PB6 Preloaded in SAMMS-LVE, can be downloaded in SAMMS-LVX FVNR PB10 LOCAL, 2-WIRE OFF ON PB11 LOCAL, 3-WIRE STOP START PB12 LOCAL, 3-WIRE, REMOTE 2-WIRE STOP START HAND OFF AUTO PB13 LOC...
Page 20 - ODP motor thermal signature
18 3 Operating the SAMMS-LV Device Figure 3.5 ODP motor thermal signature
Page 21 - SECONDS; Time-current characteristic curve for cold motors with SF=1.00
19 3 Operating the SAMMS-LV 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=1.00
Page 22 - Time-current characteristic curve for warm motors with SF=1.15; ratio
20 3 Operating the SAMMS-LV 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 .1 11 0 SECONDS I ratio I FLC
Page 23 - Motor protection graph
21 3 Operating the SAMMS-LV Device .1 1 I I FLC ratio 6 10 Motor starting current600% rated full load current Jam and loss of loadprotection persistencedelay (5 times overload class) Class 5 curve Maximumstall time25 seconds Jam protectionadjustable from120 to 400% of FLC Motor running currentat ful...
Page 24 - Ultimate Trip Level and Service Factor; Process Current Warning
22 3 Operating the SAMMS-LV 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 . The lowest overload class, greater than o...
Page 26 - Size; Emergency Restarting
24 3 Operating the SAMMS-LV 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. Ground fault protection is...
Page 27 - Function Number; SAMMS-LV models and functions
25 3 Operating the SAMMS-LV Device SAMMS-LV Function Number Function SAMMS-LVX SAMMS-LVE F0 Ambient temperature • • F1 Control circuit number • • F2 Size for overload No. 1 • • F3 Size for overload No. 2 (low speed) • F4 Full load current for OLR No. 1 • • F4A 5A CT primary current (if used) • • F5 ...
Page 29 - Motor control and protection functions (page 1 of 3)
27 3 Operating the SAMMS-LV Device Function Number Function Description 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 incomplete sequence status. 0 - 9999 1 N/A F2 Display the size for...
Page 30 - Motor control and protection functions (page 2 of 3)
28 3 Operating the SAMMS-LV Device Function Number Function Description Range Step Size Default Value F12 Select ground fault protection or warning. ON means protection; OFF means warning. ON/OFF N/A OFF F12A Select ground fault pick-up current value. 1A: 1.5A 1B: 2A-5A 1C: 2A-I 2A: 2A-I 2B: 2A-I 3:...
Page 31 - tions; dISP
29 3 Operating the SAMMS-LV Device Function Number Function Description Range Step Size Default Value F18 Display the elapsed motor running 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. 0.0 - 6553 (...
Page 32 - Entering and changing passwords
30 3 Operating the SAMMS-LV Device Figure 3.13 Entering and changing passwords F P r e s s a n d h o l d F k e y U P D O W N D i s p l a y m o d e P r o g r a m m o d e E N T E R E N T E R U P D O W N T o s e l e c t f u n c t i o n f o r v i e w i n g P r o m p t f o r p a s s w o r d U P D O W N E...
Page 33 - F0 - Ambient Temperature
31 3 Operating the SAMMS-LV 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 CHg. 3. Press the ENTER key, and the display shows HHH0, the promp...
Page 34 - F4A - 5A CT Primary Current Selection for Overload
32 3 Operating the SAMMS-LV 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). The range...
Page 35 - F7 - Overload Trip Class; SUrE; F9 - Phase Unbalance Protection
33 3 Operating the SAMMS-LV 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 thei...
Page 36 - F10 - Display Time to Restart; F12 - Ground Fault Protection or Warning
34 3 Operating the SAMMS-LV 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. 3. To change t...
Page 37 - F12A - Ground Fault Pickup Current; F15 - Display Current
35 3 Operating the SAMMS-LV 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 1.5A 1.5A 1B 2A to 5A 5A 1C 2A t...
Page 38 - F17 - Current Unbalance; Actual Number of Hours; F19 - Number of Motor Starts; Actual Number of Starts; F20 - Number of Overload Trips; F21 - Reset Motor Data; CLr
36 3 Operating the SAMMS-LV 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. The percentage unbalance is the ratio of the greatest deviation of the three phase currents from their aver...
Page 39 - F24 - Loss of Load Protection or Warning
37 3 Operating the SAMMS-LV 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. 5. To exit the progr...
Page 41 - Troubleshooting; When contacting your Siemens representative, refer to; Troubleshooting Guide; Current Unbalance
39 4 Troubleshooting 4 Troubleshooting the SAMMS-LVDevice This section discusses how to troubleshoot the SAMMS-LVdevice. The troubleshooting guide below lists basic errors thatcan occur while operating the SAMMS-LV device. Use theguide as necessary to solve error conditions as they arise. Donot atte...
Page 42 - External Trip
40 4 Troubleshooting Troubleshooting Guide Error Condition Main Cause Remedy IncompleteSequence Indicates the SAMMS-LV unit does notdetect current one second after a startcommand, or it detects current onesecond after a stop command. 1. 2. 3. 4. 5. If the unit trips one second after start, verify th...
Page 44 - Appendix A Technical Specifications; Appendix A - Technical Specifications of the SAMMS-LV Device; Motor Control Specifications; Inputs; Permissible CT Ratios; Overload Relay Size
42 Appendix A Technical Specifications Appendix A - Technical Specifications of the SAMMS-LV Device Motor Control Specifications Inputs SAMMS-LVX:Six pushbuttonsFour remote inputs SAMMS-LVE:Six pushbuttonsTwo remote inputs Outputs SAMMS-LVX:Three coil driversThree light barsOne programmable alarm co...
Page 45 - Overload Specifications
43 Appendix A Technical 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%).Tripping tim...
Page 46 - Software Configured Control Devices
44 Appendix A Technical Specifications Software Configured Control Devices Timers 4 Timing range Timers 1 and 2: 0 - 200 seconds selectableTimer 3: 1 second fixed valueTimer 4: 30 seconds fixed value Timer auxiliary contacts Software instantaneous and timed contacts Control relays 8 Auxiliary contac...
Page 47 - Dimensions
45 Appendix A Technical 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. Relative humidity 5 to 95% non-con...
Page 48 - Catalog Number
46 Appendix A Technical 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-LV Model Number SAM4 - SAMMS-LVE SAM5 - SAMMS-LVX Control Type L - Local and/or Remote Control Alarm Contacts Configuration (SAMMS-LVX Only) 0 -...
Page 49 - FUNCTION
47 Appendix A Technical Specifications SAMMS-LVX LED LED on LED Flashing CurrentUnbalance ImpendingTrip OverloadTrip IncompleteSequence ExternalTrip Alarm CPUFault GroundFault > 40% 20 - 40% > 110% > 100%< 110% Overload StartInhibit Trip Trip: Lossof Load, orJam Alarm: Lossof Load orPrcs...
