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Page 72

I.L. 17562

PR 0.3 Effective 8/99

Figure 6.1 Panel Cutout Dimensions

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Содержание MP-3000

Страница 1: ...17562 MP 3000 Motor Protection Relay Effective 8 99 Version PR 0 3 Cutler Hammer Power Management Products Center 240 Vista Park Drive Pittsburgh PA 15205 1 800 809 2772 http www cutlerhammer eaton c...

Страница 2: ...n 3 Specifications 11 Section 4 Operator Panel 14 Section 5 Programming the MP 3000 45 Section 6 Installation and Wiring 66 Section 7 Startup 80 Section 8 Motor Thermal Protection Basics 84 Section 9...

Страница 3: ...rotection Intel I Trip I 2 t Overload Protection 49 51 Locked rotor protection 49S 51 Ultimate trip current 51 Negative sequence current phase unbalance protection 46 Instantaneous overcurrent trip 50...

Страница 4: ...Relay incorporates the field proven motor thermal models and sequence component measurement techniques that were pioneered in the IQ 1000 and IQ 1000 II relay thermal models However the MP 3000 adds o...

Страница 5: ...ons Hardware specifics Section 4 Operator Panel Describes the pushbuttons LEDs display window and security door on the MP 3000 s faceplate plus the different modes of operation and detailed mode descr...

Страница 6: ...0 66D2032G01 Motor relay fixed case 5 A Cts MP 3001 66D2033G01 Motor relay drawout case 5 A Cts MP 3002 66D2033G02 Motor relay drawout case with IPONI 5 A Cts MP 3100 66D2032G02 Motor relay fixed case...

Страница 7: ...ser friendly operator interface provides quick access to the settings monitored values motor history and operational logs A large LED alphanumeric display provides easy viewing from any angle Simple k...

Страница 8: ...ground The relay ground Ct input can be connected residually from the three phase Cts but with much inferior protection sensitivity The ground fault protection has adjustable pickup and time delay se...

Страница 9: ...backward for a period of time after it stops The MP 3000 provides an antibackspin timer minimum time between stop and restart to prevent starting the motor while it is spinning in the reverse directi...

Страница 10: ...t versus the motor cold start protection curve as in Figure 2 1 2 3 User Interface The MP 3000 Motor Protection Relay has a user friendly interface that makes it easy to retrieve important information...

Страница 11: ...al Metering Accuracy Phase Current 2 of In 5 100 of In Ground Current 2 2 of In 5 55 of In Discrete Inputs Number of inputs 2 programmable Rating 1 2 VA 120 Vac Max off 36 Vac Min on 86 Vac Output Con...

Страница 12: ...0 FLA Underload off 6 to 90 FLA Phase Unbalance off 4 to 40 I2 I1 Run Delay Timers 0 to 240 s Start Control Functions Starts per time 1 to 10 starts Time for starts per time off 1 to 240 minutes Time...

Страница 13: ...Profile Logging Log Book 100 Events Log Event 20 Trips Alarms Log Start Last 4 starts Start Profile Last 4 starts Communications port only History Records Motor trips alarms totals records Environmen...

Страница 14: ...pushbuttons near the middle of the operator panel provide access to the four different modes used by the MP 3000 The Monitor View Settings History and Log modes are detailed in Sections 4 2 through 4...

Страница 15: ...4 1 Default Mode In the Motor State or Default mode basic messages concerning the state of the motor and relay are displayed The following events reset the system to Default mode Cycling power Pressin...

Страница 16: ...View Settings pushbutton only displays the programmed setpoints listed in Table 4 3 The displays and help messages are the same as in the Program mode 4 3 2 Program Mode The Program mode permits the u...

Страница 17: ...e using the emergency override button alarm condition and trip condition Unlike the other modes the Line column function order varies with the number of events since the actual event information is st...

Страница 18: ...Page 18 I L 17562 PR 0 3 Effective 8 99 Figure 4 1 MP 3000 Pushbuttons...

Страница 19: ...I L 17562 Page 19 PR 0 3 Effective 8 99 Figure 4 2 MP 3000 LED Indicators...

Страница 20: ...TEMPTING TO START MOTOR Motor is starting and has not yet reached transition to RUN as defined by user settings DISARMED WARNING RELAY IS DISARMED AND CAN NOT TRIP WARNING Protection functions have be...

Страница 21: ...d a negative sign is displayed MONT RTD REAL TIME DATA FROM RTD MODULE RTD monitoring data follows Page is only visible when an URTD is communicating with the MP 3000 WT1 XXXX WINDING TEMP 1 IN DEGREE...

Страница 22: ...TIME LEFT ON OLDEST START IN MINUTES Remaining time allowed on oldest start for starts per time if programmed If motor start time is exceeded this is time in minutes before restart is permitted ICM X...

Страница 23: ...10 3000 amps 1 amp increments 10 2 LRC XXXX LOCKED ROTOR CURRENT OF FLA 300 1200 1 increments 300 3 LRT XXX MAXIMUM ALLOWABLE STALL TIME IN SECONDS 1 120 sec 1 sec increments 1 4 UTC XXX ULTIMATE TRIP...

Страница 24: ...Ct ratio numerator OFF 1 increments 24 2 GFSD XX GROUND FAULT START DELAY IN CYCLES 2 60 ac cycles 1 cycle increments 5 3 GFRD XX GROUND FAULT RUN DELAY IN CYCLES 0 60 ac cycles 1 cycle increments 2 4...

Страница 25: ...rements 10 8 UBAR XXX PHASE UNBALANCE ALARM RUN DELAY IN SECONDS 0 240 sec 1 sec increments 10 Page 5 SP START SETPOINTS FOR START SETTINGS 1 ST T XXX STARTS PER TIME ALLOWED 1 10 starts time incremen...

Страница 26: ...200 sec OFF 1 sec increments Danger set to OFF unless absolutely needed If used connect zero speed switch see P5L11 and P6L1 OFF 11 ZSW ON or ZSW OFF ZERO SPEED SWITCH ON DISCRETE INPUT 1 ON OR OFF To...

Страница 27: ...RGENCY OVERRIDE INC SEQ INCOMPLETE SEQUENCE CONFIGURE DISCRETE INPUT 2 INC SEQ INCOMPLETE SEQUENCE TO GET ANY OTHER FUNCTION SET INCOMPLETE SEQUENCE TIME SETPOINT TO OFF Choose from the seven selectio...

Страница 28: ...OUTPUT OR DISABLE Toggles between LB A ON LB T ON and LB OFF LB A ON 9 Choose AX A ON AX T ON or AX OFF ENABLE AUXILIARY RTD TEMP ALARM OR TRIP TO ACTIVATE ALARM RELAY OUTPUT OR DISABLE Toggles betwe...

Страница 29: ...ON or TRNT OFF ENABLE TRANSITION TRIP TO ACTIVATE ALARM RELAY OUTPUT OR DISABLE Toggles between TRNT ON and TRNT OFF TRNT OFF 21 ZSWT ON or ZSWT OFF ENABLE ZERO SPEED SWITCH TRIP TO ACTIVATE ALARM REL...

Страница 30: ...UB A ON UB T ON and UB OFF UB OFF 9 Choose WD A ON WD T ON or WD OFF ENABLE WINDING TEMP ALARM OR TRIP TO ACTIVATE AUX1 RELAY OUTPUT OR DISABLE Toggles between WD A ON WD T ON and WD OFF WD OFF 10 Cho...

Страница 31: ...or DIFT OFF ENABLE DIFFERENTIAL TRIP TO ACTIVATE AUX1 RELAY OUTPUT OR DISABLE Toggles between DIFT ON and DIFT OFF DIFT OFF 22 INCT ON or INCT OFF ENABLE INCOM TRIP TO ACTIVATE AUX1 RELAY OUTPUT OR D...

Страница 32: ...and WD OFF WD OFF 8 Choose MB A ON MB T ON Or MB OFF ENABLE MOTOR BEARING TEMP ALARM OR TRIP TO ACTIVATE AUX2 RELAY OUTPUT OR DISABLE Toggles between MB A ON MB T ON and MB OFF MB OFF 9 Choose LB A ON...

Страница 33: ...RELAY OUTPUT OR DISABLE Toggles between INCT ON and INCT OFF INCT OFF 21 TRNT ON Or TRNT OFF ENABLE TRANSITION TRIP TO ACTIVATE AUX2 RELAY OUTPUT OR DISABLE Toggles between TRNT ON and TRNT OFF TRNT...

Страница 34: ...2T 6 RUN PGM or STOP PGM ENABLES UNIT TO BE PROGRAMMED WHILE MOTOR IS RUNNING Toggles between RUN PGM and STOP PGM STOP PGM 7 EMRG EN Or EMRG DIS EMERGENCY OVERRIDE ENABLE EMRG EN ENABLE EMERGENCY OVE...

Страница 35: ...MED ARMED Page 13 SP TEST SETPOINTS FOR TESTING INPUTS AND OUTPUTS 1 3 PHASE or 1 PHASE SINGLE PHASE TEST MODE OR THREE PHASE PROTECTION MODE Toggles between 3 PHASE and 1 PHASE Note 1 PHASE is for be...

Страница 36: ...MOTOR HISTORY RESET PUSH RST PUSH RESET TO EXECUTE RESET OF MOTOR HISTORY OR PUSH RAISE TO NOT RESET Change to PUSH RST and press Reset button or return to MTR RST 2 TRIP RST or PUSH RST TRIP RST PUS...

Страница 37: ...ored since last reset MM DD YY DATE OF EVENT Date of highest phase unbalance HH MM SS TIME OF EVENT Time of highest phase unbalance WMX XXXX WMX XXXX HIGHEST MOTOR WINDING TEMPERATURE IN DEGREES C F M...

Страница 38: ...OF RESET HH MM SS TIME OF RESET MB T XX MB T XX NUMBER OF MOTOR BEARING TEMPERATURE TRIPS SINCE LAST RESET MM DD YY DATE OF RESET HH MM SS TIME OF RESET LB T XX LB T XX NUMBER OF LOAD BEARING TEMPERAT...

Страница 39: ...T TIME OF RESET TBST XX TBST XX NUMBER OF TIME BETWEEN STARTS TRIPS SINCE LAST RESET MM DD YY HH MM SS DATE OF RESET TIME OF RESET TRNT XX TRNT XX NUMBER OF TRANSITION TRIPS SINCE LAST RESET MM DD YY...

Страница 40: ...F PHASE UNBALANCE ALARMS SINCE LAST RESET MM DD YY HH MM SS DATE OF RESET TIME OF RESET WD A XX WD A XX NUMBER OF WINDING TEMPERATURE ALARMS SINCE LAST RESET MM DD YY HH MM SS DATE OF RESET TIME OF RE...

Страница 41: ...ption HIST TOT HISTORY TOTALS FOR MOTOR TRPS MM DD YY HH MM TOTAL NUMBER OF TRIPS SINCE RESET DATE OF RESET TIME OF RESET TRT XXXX TOTAL RUN TIME SINCE RESET MM DD YY HH MM DATE OF RESET TIME OF RESET...

Страница 42: ...dest and so on MM DD YY DATE OF EVENT The date that the event occurred HH MM TIME OF EVENT The time that the event occurred STOP STOP EVENT A TRANSITION TO THE STOP STATE WAS MADE MM DD YY DATE OF EVE...

Страница 43: ...om this display press line up to get the most recent event Push again for the next most recent event and so on From this display press line down to get the oldest event Push again for the next oldest...

Страница 44: ...STARTS This page contains detailed information about the last four motor starts START X START NUMBER MOST RECENT START EQUAL 1 Each of the last 4 starts are numbered 1 being the most recent and 4 bei...

Страница 45: ...ge 45 PR 0 3 Effective 8 99 Page Line Value Complete Help Message Description CURRENT TRANSITION IN SECONDS current below the transition current set point level TSTR XXX TIME FROM START TO RUN OR TRIP...

Страница 46: ...f the motor changes during a programming operation the MP 3000 exits the program mode without actually making any of the changes entered to that time State changes include any transition to start run...

Страница 47: ...of service factor CAUTION Many of the protection functions of the MP 3000 including the motor thermal protection algorithm use the FLA setpoint value to calculate trip points If the user enters an inc...

Страница 48: ...the main phase current transformers Obtain from the Ct nameplate or from the installation drawings watching for the use of ratio taps on Cts which have tapped windings Explanation of Ct Ratio Presenta...

Страница 49: ...E IOC OR DECREASE FLA OR INCREASE CT RATIO PRESS PROGRAM TO CONTINUE JAMT OUT JAM TRIP SETPOINT IS OUT OF RANGE DECREASE JAM TRIP OR DECREASE FLA OR INCREASE CT RATIO PRESS PROGRAM TO CONTINUE JAMA OU...

Страница 50: ...only a positive phase sequence ABC It trips the motor for a reversed sequence of ACB with the message PH REVRS on the display 5 2 Page 2 SP RTD Setpoints P2L1 to P2L10 This page contains all of the se...

Страница 51: ...on Setpoint P2L1 above There are two specifically labeled motor bearing RTD inputs on the URTD module whose readings can trigger this particular type of alarm 5 2 6 Setpoint P2L6 Load Bearing Trip LB...

Страница 52: ...MP 3000 relay from START to RUN state has no bearing on any of these time delays Timing Example Say the MP 3000 jam trip function see below is set for a start delay of 15 seconds and a run delay of 5...

Страница 53: ...the jam start and run delays The jam trip function operates if the current rises well above FLA during running perhaps due to a mechanical jam in the load or a sudden larger than intended load For exa...

Страница 54: ...age it must also be directed to an output relay to produce contact operation for remote or annunciator alarming Normally and by factory default settings the conditions should all be directed to the AL...

Страница 55: ...formation 5 4 8 Setpoint P4L8 Phase Unbalance Alarm Run Delay UBAR Sets the number of seconds that a phase unbalance alarm must be maintained before the alarm occurs 5 5 Page 5 SP START Setpoints P5L1...

Страница 56: ...to RUN after time setting P5L6 only Ignore current TRN I Transition when starting current drops below setting P5L5 only If the time set in TRNT P5L6 expires before the current transition trip the moto...

Страница 57: ...t value and the thermal trip is held off until the LAT delay expires By then the thermal bucket level must have decreased thermal model cooled below 100 or the motor trips The LAT function should be u...

Страница 58: ...EMG OVR or ZERO SW If the zero speed switch ZSW function is ON in the SP START page P5L11 then this DI 1 input is automatically configured to be zero speed switch contact input ZERO SW and no other s...

Страница 59: ...ppears Trip events do not activate the alarm relay nor does Time Between Starts blocking which frequently goes true during normal operating cycles Check the setpoints to be sure they agree with factor...

Страница 60: ...3 Setpoint P9L3 Load Shed Delay LSDL Sets both the pickup and dropout delays in seconds for the load shed output In other words it sets the time for which the current must be above LSPU before the ou...

Страница 61: ...roportional to the percent I 2 T trip level thermal model accumulator bucket with 100 percent of the I 2 T Trip Level 20 mA and zero percent 4 mA MAX WRTD Winding temperature proportional to the maxim...

Страница 62: ...nt to take full advantage of the ARMED DISARMED capability of the MP 3000 as described in P12L18 below be sure to set P12L6 to RUN PGM With RUN PGM if the user reprograms the MP 3000 while the motor r...

Страница 63: ...the time display to be the 12 hour format with AM or PM or the 24 hour military time or international time format 5 12 9 Setpoint P12L9 Month MONTH Set the real time clock month 1 to 12 5 12 10 Setpo...

Страница 64: ...is chosen be sure to connect an effective alarm to the alarm relay output and test it periodically Otherwise the motor runs without protection if the relay suffers a hardware failure 5 12 17 Setpoint...

Страница 65: ...ase source is unavailable at the test bench The phase unbalance functions cannot be tested in 1 PHASE mode but unbalance functions are not necessary just to determine if a particular MP 3000 sample is...

Страница 66: ...force either 4 12 or 20 mA When ready to test push and hold the Reset button to observe the forced output value When the Reset button is released the analog output returns to normal operation 5 13 7...

Страница 67: ...moderate torque 8 inch pounds Use the 0 375 inch long 0 75 cm screws supplied with the relay to mount the unit on a 1 8 inch panel Do not attempt to tap the holes Do not use machine screws 6 1 2 Moun...

Страница 68: ...Also unexpected motor control action could injure personnel or destroy equipment Figure 6 5 shows MP 3000 rear terminal connections Connect terminal 5 to the closest solid electrical safety grounding...

Страница 69: ...mended to use the alarm relay in Mode 2 and to direct all alarm conditions to it Connect the annunciator to terminals 17 and 18 With this connection an alarm will be given if the relay or its power su...

Страница 70: ...ted to the MP 3000 discrete inputs Charging current through the capacitor could cause a false indication of a closed contact Keep total capacitance below 0 05 microfarads 6 2 5 Analog output wiring Te...

Страница 71: ...mon terminal 22 is at 120 Vac with respect to the supply neutral The maximum cable length is 150 meters 500 feet 6 2 7 Wiring RTDs to the URTD Module Consult URTD Module Instruction Leaflet I L 17367...

Страница 72: ...Page 72 I L 17562 PR 0 3 Effective 8 99 Figure 6 1 Panel Cutout Dimensions...

Страница 73: ...I L 17562 Page 73 PR 0 3 Effective 8 99 Figure 6 2 Faceplate Dimensions...

Страница 74: ...Page 74 I L 17562 PR 0 3 Effective 8 99 Figure 6 3 MP 3000 Case Depth Dimensions...

Страница 75: ...I L 17562 Page 75 PR 0 3 Effective 8 99 Figure 6 4 Universal RTD Module Mounting Dimensions...

Страница 76: ...Page 76 I L 17562 PR 0 3 Effective 8 99 Figure 6 5 Rear Panel Terminals...

Страница 77: ...I L 17562 Page 77 PR 0 3 Effective 8 99 Figure 6 6 Typical Ct Circuits and Motor Control Wiring...

Страница 78: ...Page 78 I L 17562 PR 0 3 Effective 8 99 Figure 6 7 Typical ac Supply and URTD Wiring...

Страница 79: ...I L 17562 Page 79 PR 0 3 Effective 8 99 Figure 6 8 Alternatives for Discrete Input Wiring...

Страница 80: ...Page 80 I L 17562 PR 0 3 Effective 8 99 Figure 6 9 RTD Wiring to URTD Module...

Страница 81: ...power checks Refer to Figure 6 8 MP 3000 Rear Panel Terminals as necessary Also see URTD terminals in Figure 6 6 and URTD I L 17367 With the power still off disconnect the ac control power lead to ter...

Страница 82: ...Reconnect the leads disconnected from terminals 8 and 10 Turn on ac power again Recheck P13L7 state of discrete input 1 if used It should report DI 1 ON Recheck P13L8 state of discrete input 2 if use...

Страница 83: ...d Cts in the gear agree with the PCT and GCT setpoints of the relay CAUTION The MP 3000 has 154 setpoints which are easy to confuse Do not attempt to enter values without using the appropriate Set Poi...

Страница 84: ...FLA or if the cts are far from the optimum ratio errors may be larger This test is intended to show incorrectly set ct ratios or faulty wiring rather than precision of measurements q If a ground Ct i...

Страница 85: ...erature When measured or derived measurements exceed user selected levels an alarm condition is initiated and then if necessary a trip output opens the motor contactor or trips a breaker The MP 3000 c...

Страница 86: ...e no zero sequence current unless there is a ground fault Thus we focus on the positive and negative sequence components which can routinely be present For analysis and understanding consider the moto...

Страница 87: ...erefore oversimplified assumptions were used with available relays This resulted both in nuisance tripping and in motor burnouts or life reduction The MP 3000 uses a unique patented calculation for de...

Страница 88: ...Page 88 I L 17562 PR 0 3 Effective 8 99 Figure 8 1 System Overview Figure 8 2 Torques from Sequence Currents...

Страница 89: ...I L 17562 Page 89 PR 0 3 Effective 8 99 Figure 8 3 Unbalanced Motor Current Example Figure 8 4 Positive Sequence Component Calculation Figure 8 5 Negative Sequence Component Calculation...

Страница 90: ...urrent integrated over time Positive and negative sequence current magnitudes are calculated in separate accurate algorithms The effective heating current is the sum of the positive and negative seque...

Страница 91: ...ultimate trip current setpoint depending on stator temperature reports It is still important to set a correct ultimate trip current so that the motor is well protected if the RTDs the module or its c...

Страница 92: ...value is the total IOC trip time including pickup time of the basic IOC measurement algorithm and cannot be set below two cycles 9 1 3 2 Locked Rotor Function The family of curves shown in Figure 9 2...

Страница 93: ...e the jam trip is set at 150 of FLA The MP 3000 has setpoints for jam alarm JMA P4L3 and jam trip JMT P3L6 Each can be disabled by setting to OFF These would be represented by two such vertical lines...

Страница 94: ...mal protection limit after a start by setting a Long Acceleration Time delay LAT P5L10 This can be a dangerous setting which blocks thermal tripping and holds the bucket at a 100 level if the load tak...

Страница 95: ...fe 9 1 9 Unbalance Protection Unbalanced or negative sequence currents are usually caused by unbalanced supply voltage Certain harmonics such as 5 th and 11 th also cause the same undesirable effects...

Страница 96: ...nd or the motor fuses Residual connection wired summation of the phase Ct circuits through the ground Ct input requires a much higher GFT setting to avoid false tripping Thus sensitivity is not nearly...

Страница 97: ...sition function to provide clear indications of the actual state of the motor START versus RUN on the front panel display and via data communications A good way to do this is to use the factory defaul...

Страница 98: ...out a second whenever it is tripped it declares a trip bypass and a message is displayed This means that the relay blocking of the contactor has been circumvented by the user to start the motor If the...

Страница 99: ...the power system has special mitigating features like multiple well separated sources or local paralleled generation Conventional motor contactors will drop out in 3 to 5 cycles stopping the motor Spe...

Страница 100: ...Page 100 I L 17562 PR 0 3 Effective 8 99 Figure 9 1 Rotor Temperature Tracking...

Страница 101: ...I L 17562 Page 101 PR 0 3 Effective 8 99 Figure 9 2 Motor Protection Curve...

Страница 102: ...Page 102 I L 17562 PR 0 3 Effective 8 99 Figure 9 3 Underload Jam Protection Curve...

Страница 103: ...I L 17562 Page 103 PR 0 3 Effective 8 99 Figure 9 4 Motor Protection Curve Example without RTDs...

Страница 104: ...Page 104 I L 17562 PR 0 3 Effective 8 99 Figure 9 5 Motor Protection Curve Example with RTDs...

Страница 105: ...I L 17562 Page 105 PR 0 3 Effective 8 99 Figure 9 6 Motor Start and Run Cycles...

Страница 106: ...0 II motor relay 10 2 Choosing a PONI The PONI Product Operated Network Interface module is interchangeable among a number of available styles and provides the physical and electrical interface to sev...

Страница 107: ...owed with various combinations of other communicating products and PONI types check instructions of each device 10 5 Connecting the PONI to the network or host Figure 10 1 shows an outline of the I PO...

Страница 108: ...upport these IQ2 EN communications But the default settings must be tailored to the motor check the allowed ranges below So the application abilities of the MP 3000 may be slightly abridged if it must...

Страница 109: ...I L 17562 Page 109 PR 0 3 Effective 8 99 P5L8 40 Incomplete Sequence time 1 60s OFF 1 240s...

Страница 110: ...on 10 7 PowerNet INCOM communications protocol The communications messaging protocol specification for the MP 3000 is open and available to users and communications systems integrators without charge...

Страница 111: ...g motor In order to use any of the test setpoints on a running motor the relay must be set to allow programming while running See STOP PGM versus RUN PGM in Section 5 12 6 and Setpoint P12L6 To test t...

Страница 112: ...setpoint P13L3 The procedure is the same as for the trip relay test Press the Reset pushbutton to light the Alarm LED and activate the alarm contacts terminals 17 through 19 If the MP 3000 is set for...

Страница 113: ...arameters Paragraph 12 1 4 Retrieving motor history data Paragraph 12 1 5 Retrieving the logs of motor events Paragraph 12 1 6 Viewing the motor starting current profile Paragraph 12 1 7 is available...

Страница 114: ...ing data communications to the MP 3000 12 2 Troubleshooting MP 3000 Monitored Equipment If the monitored equipment malfunctions certain troubleshooting information from the MP 3000 assists in localizi...

Страница 115: ...ons 5 5 1 and 5 5 2 Trip conditions have these features A time tag and a listing of the metering values just prior to the occurrence of a trip is stored in memory and can be recalled by using the Log...

Страница 116: ...pment and or personnel injury may occur if this procedure is not followed The MP 3000 performs continuous internal diagnostic checks If a malfunction is detected during a diagnostic check one of the m...

Страница 117: ...level in Monitor mode to be sure level does not continue to rise to trip level STEX A ALLOWED STARTS EXCEEDED WAIT IN MINUTES All of the allowed count of starts in the set time period have been used...

Страница 118: ...B FIBER CHAN 3W THREE WIRE CHAN FAILED URTD COMMUNICATION log display only RTD temperature information reporting through designated medium has been lost Check wire or fiber channel medium for damage o...

Страница 119: ...motor starter for safety Check process equipment UNDER L UNDER LOAD RUN TRIP Breakage or malfunction in the process driven equipment or drive shaft Lock out motor starter for safety Check shaft coupl...

Страница 120: ...against process feedback time Check setpoint P5L9 to be sure correct timing start point is selected start or transition If timing from transition be sure transition current and time settings are corre...

Страница 121: ...ds Do not try to restart without expert evaluation After or during repair or replacement of motor check fuses in starter and replace blown fuses PH UNBAL PHASE UNBALANCE TRIP Source voltage unbalance...

Страница 122: ...trip STEX MMM STEX T MAX NUMBER OF STARTS PER TIME REACHED REMAINING MINUTES ACTIVE SHOWN STARTS PER TIME TRIP log display only Too many starts were performed in the user set period of time Wait for...

Страница 123: ...ck the frequency setting P1L7 for 50 or 60 Hz as appropriate Make sure 120 Vac is used for discrete inputs Energizing with dc will cause this error message Metered current readings too low or too high...

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