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Multilin SR469, Инструкция по эксплуатации

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Multilin SR469 Скачать руководство пользователя страница 242

8. 469PC PROGRAM

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9. The File button can be used to write the graph data to a file in a standard spreadsheet
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Содержание SR469

Страница 1: ...C K START R6 SERVIC E MESSAGE HOT RTD LOSS OF LOAD M OTOR M ANA GEMENT RELAY PROGRAM PORT SETPOINT 7 8 9 4 5 6 1 2 3 0 HELP MESSAGE VALUE ACTUAL ESCAPE ENTER TM RESET N EXT RESET POSSIBLE COMPUTER RS4...

Страница 2: ...ONS PORTS 2 17 2 2 14 TYPICAL 2 SPEED MOTOR WIRING 2 18 2 2 15 DIELECTRIC STRENGTH TESTING 2 19 3 SR469 OPERATION 3 1 3 1 OVERVIEW 3 1 3 1 1 SR469 FACEPLATE 3 1 3 1 2 DISPLAY 3 2 3 1 3 LED INDICATORS...

Страница 3: ...5 1 RELAY RESET MODE 4 22 4 5 2 FORCE OUTPUT RELAY 4 23 4 6 S5 THERMAL MODEL 4 24 4 6 1 MOTOR THERMAL LIMITS 4 24 4 6 2 SR469 THERMAL MODEL 4 25 4 6 3 OVERLOAD CURVE SETUP 4 26 4 6 4 UNBALANCE BIAS 4...

Страница 4: ...OTOR STATUS 5 2 5 2 2 LAST TRIP DATA 5 3 5 2 3 ALARM STATUS 5 5 5 2 4 START BLOCKS 5 6 5 2 5 DIGITAL INPUTS 5 7 5 2 6 REAL TIME CLOCK 5 7 5 3 A2 METERING DATA 5 8 5 3 1 CURRENT METERING 5 8 5 3 2 TEMP...

Страница 5: ...EVENT RECORDER 6 15 6 5 4 WAVEFORM CAPTURE 6 15 7 TESTING 7 1 7 1 TEST SETUP 7 1 7 1 1 SECONDARY INJECTION TEST SETUP 7 1 7 2 HARDWARE FUNCTIONAL TESTING 7 2 7 2 1 PHASE CURRENT ACCURACY TEST 7 2 7 2...

Страница 6: ...SR469 MANUAL TABLE OF CONTENTS v 8 13 TROUBLESHOOTING 8 17 COMMISSIONING SUMMARY A 1 2 CT CONFIGURATION B 1 SELECTION OF COOL TIME CONSTANTS C 1 CURRENT TRANSFORMER D 1 INDEX...

Страница 7: ......

Страница 8: ...e found in Table 1 1 Four assignable digital inputs may be configured for a number of different features including tachometer or generic trip and alarm with a programmable name The thermal model incor...

Страница 9: ...m values for RTDs and analog inputs are also recorded These features will enable the operator to pinpoint a problem quickly and with certainty Power metering is built into the SR469 as a standard feat...

Страница 10: ...ondary also field programmable The VT inputs will accommodate VTs in either a delta or wye configuration The output relays are always non failsafe with the exception of the service relay The SR469 SET...

Страница 11: ...ng Current 5mA Isolation 36 Vpk Isolated with Analog Inputs and Outputs Range 50 to 250 o C Accuracy 2 o C Lead Resistance 25 Max per lead for Pt and Ni type 3 Max per lead for Cu type No Sensor 1000...

Страница 12: ...ow overload pickup Time Delay 1 0 250 0 s in steps of 0 1 Timing Accuracy 100ms or 0 5 of total time Elements Trip JOGGING BLOCK Starts Hour 1 5 in steps of 1 Time Between Starts 1 500 min Timing Accu...

Страница 13: ...GENERATION Description Continuous total of reactive power generation Range 0 2000000 000 Mvar Hours Timing Accuracy 0 5 Update Rate 5 seconds FUSE Hi Volt Current Rating 2 A Type 5x20mm Slo Blo Littel...

Страница 14: ...ox 12 x11 x10 WxHxD 30 5cm x 27 9cm x 25 4cm Shipping Weight 17 lbs Max 7 7 kg CERTIFICATION ISO Manufactured under an ISO9001 registered system UL UL approved CSA CSA approved CE Conforms to EN 55011...

Страница 15: ...d in any SR469 case except for custom manufactured units that are clearly identified as such on both case and unit and are equipped with an index pin keying mechanism to prevent incorrect pairings No...

Страница 16: ...label details which units can be installed The case label details the following information MODEL NUMBER MANUFACTURE DATE SPECIAL NOTES The unit label details the following information MODEL NUMBER T...

Страница 17: ...mounting the case in the supporting panel Unit withdrawal is described in section 2 1 4 Figure 2 5 SINGLE SR469 CUTOUT PANEL Figure 2 6 DOUBLE SR469 CUTOUT PANEL After the mounting hole in the panel h...

Страница 18: ...of the case when pulled by the handle It may sometimes be necessary to adjust the handle position slightly to free the unit Figure 2 10 To insert the unit into the case 1 Raise the locking handle to t...

Страница 19: ...2 INSTALLATION MECHANICAL 2 5 2 1 5 TERMINAL LOCATIONS Figure 2 11 TERMINAL LAYOUT...

Страница 20: ...N A25 ANALOG INPUT3 F12 SR469 DRAWOUT INDICATOR A26 ANALOG INPUT4 A27 ANALOG INPUT COMMON G01 PHASE VT NEUTRAL G02 PHASE A VT B01 RTD SHIELD G03 DIFFERENTIAL A CT B02 AUXILIARY RS485 G04 DIFFERENTIAL...

Страница 21: ...2 INSTALLATION ELECTRICAL 2 7 Figure 2 12 TYPICAL WIRING DIAGRAM...

Страница 22: ...ate safety ground terminal is provided for hi pot testing All grounds MUST be hooked up for normal operation regardless of control power supply type 2 2 3 PHASE CURRENT INPUTS The SR469 has three chan...

Страница 23: ...secondary current if the 1A 5A tap is used Since the conversion range is relatively small the 1A or 5A option is field programmable Proper selection of this setpoint will ensure proper reading of pri...

Страница 24: ...d programmable Proper selection of this setpoint will ensure proper reading of primary phase differential current The 1A 5A differential CT chosen must be capable of driving the SR469 differential CT...

Страница 25: ...ment and voltage phase reversal operation Typically a 1A fuse is used to protect the inputs Figure 2 19 WYE VOLTAGE TRANSFORMER CONNECTION 2 2 7 DIGITAL INPUTS There are 9 digital inputs that are desi...

Страница 26: ...s 4 analog output channels which when ordering are selected to provide a full scale range of either 0 1 mA into a maximum 10 k impedance or 4 20 mA into a maximum 1200 impedance Each channel can be co...

Страница 27: ...exceed 25 per lead for platinum and nickel type RTDs or 3 per lead for Copper type RTDs Shielded cable should be used to prevent noise pickup in the industrial environment RTD cables should be kept c...

Страница 28: ...be noted that there is an error produced on each RTD equal to the voltage drop across the jumper on the RTD return This error would increase on each successive RTD added VRTD1 VRTD1 VRTD2 VRTD2 VJ3 V...

Страница 29: ...er the SR469 or at the motor Ground ing should not be done in both places as it could cause a circulating current to flow Only RTD Return leads may be grounded When grounding at the SR469 only one Ret...

Страница 30: ...tion Circuit breakers equipped with standard control circuits have a breaker auxiliary contact permitting the trip coil to be energized only when the breaker is closed When these contacts are open as...

Страница 31: ...ommon For this reason surge protection devices are internally installed across all RS485 terminals Internally an isolated power supply with an optocoupled data interface is used to prevent noise coupl...

Страница 32: ...ELECTRICAL 2 INSTALLATION 2 18 2 2 14 TYPICAL 2 SPEED MOTOR WIRING...

Страница 33: ...sion and the filter ground terminal G11 This filtering is intended to filter out high voltage transients radio frequency interference RFI and electomagnetic interference EMI The filter capacitors and...

Страница 34: ...R5 BLOCK START R6 SERVICE M ESSAGE HOT RTD LOS S OF LOAD M OTOR M ANA GEM ENT RELAY PRO GRAM P ORT SETPOINT 7 8 9 4 5 6 1 2 3 0 HELP MESSAGE VALUE ACTUAL ESCAPE ENTER TM RESET N EXT RESET POSSIBLE COM...

Страница 35: ...de When in simulation or testing mode the LED indicator will flash SETPOINT ACCESS Access jumper is installed and passcode protection has been satisfied setpoints may be altered and stored COMPUTER RS...

Страница 36: ...sumption has fallen below the underpower alarm or trip level OUTPUT RELAY LED INDICATORS R1 TRIP R1 Trip relay has operated energized R2 AUXILIARY R2 Auxiliary relay has operated energized R3 AUXILIAR...

Страница 37: ...ely these values may be entered with the numeric keypad The HELP key may be pressed at any time for context sensitive help messages 3 1 6 ENTERING ALPHANUMERIC TEXT In order to allow the SR469 to be c...

Страница 38: ...cle through the setpoint pages until the desired page appears on the screen Press MESSAGE t to enter a page yy SETPOINTS yy S1 SR469 SETUP 2 Each page is broken further into subgroups Press MESSAGE t...

Страница 39: ...OVERVIEW 3 SR469 OPERATION 3 6 yy SETPOINTS yy S1 SR469 SETUP...

Страница 40: ...larm relay s will not reset until the condition is no longer present If on the other hand an unlatched alarm feature becomes active that alarm will reset itself and associated output relay s as soon a...

Страница 41: ...eft R2 AUXILIARY and R3 AUXILIARY are intended for special requirements When assigning features to R2 and R3 it is a good idea to decide early on what is required since features that may be assigned m...

Страница 42: ...176 yy 855 17 0 176 yy 6 6 732 176 yy 02725 67 57 1 yy 6 6 732 176 yy 57 7 03 5 785 yy 6 6 732 176 yy 92 7 0 176 yy 643 6 732 176 yy 32 5 0 176 y 6 257 5 8 7 75 3 y 5 7 21 7 0 5 y 57 7 3 6 y 81 592 7...

Страница 43: ...OVERVIEW 4 SETPOINT PROGRAMMING 4 4 T ASSIGNABLE INPUT4 dedicated as Two Speed Monitor if Two Speed Motor feature is used The two speed motor protection is enabled in S2 SYSTEM SETUP CURRENT SENSING...

Страница 44: ...R Select Yes and follow directions to enter a new passcode from 1 8 digits 17 5 1 3 66 2 25 66 17 5 1 3 66 2 1 Once a passcode other than 0 is programmed this passcode must be entered to gain setpoint...

Страница 45: ...LAY Measurements of temperature may be displayed in either Celsius or Fahrenheit Each Actual Value message where a tempera ture value is displayed will be denoted by either C for Celsius or F for Fahr...

Страница 46: ...over the RS485 serial link If the approximate time an event occurred without synchronization to other relays is sufficient then entry of time date from the front panel keys is adequate If the RS485 s...

Страница 47: ...bheading S1 SR469 SETUP DEFAULT MESSAGES When the default message to be removed is displayed press ENTER The following message will be displayed 35 66 17 5 72 5 029 0 66 Press ENTER while this message...

Страница 48: ...SCAPE MESSAGE MESSAGE MESSAGE MESSAGE 5 9 17 5 25 1R B1 75 _ IUc FUNCTION These commands may be used to clear various historical data CLEAR LAST TRIP DATA The Last Trip Data may be cleared by executin...

Страница 49: ...ber of motor starts and number of emergency restarts can be viewed in Actual Val ues The SR469 also learns various motor characteristics through motor operation These Learned Parameters include accele...

Страница 50: ...motor data sheets Service Factor may be entered as Overload Pickup described later S5 PROTECTION under THERMAL MODEL For high resistance grounded systems sensitive ground current detection is possibl...

Страница 51: ...APE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 6 67 0 3 6 6 48 1 B1 75 123 132 ESCAPE MESSAGE 63 5 3 6 6 48 1 B1 75 123 132 D5 dXYc UccQWU cUU _ i YV dXU C UUT _d_b b_dUSdY_ Yc U QR UT FUNCTION The...

Страница 52: ...SAGE 66 1 75 3 5 6 75 3 B1 75 DbY DbY 1eh DbY 1eh 1eh DbY 1eh ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 5 8 92 7 67 57 9 433 B1 75 CD5 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MES...

Страница 53: ...uxiliary a contacts or a series combination of Auxiliary b contacts from the reduced voltage contactor and the full voltage contactor Once transition is initiated the SR469 will assume the motor is st...

Страница 54: ...of trips by type total motor running hours learned parameters number of starter operations number of motor starts number of emergency restarts and the digital counter When the relay is under test Sho...

Страница 55: ...R ENTER ESCAPE ESCAPE ESCAPE ESCAPE 1387 5 81 7 21 2II B1 75 VV BU _dU 1 Qb BU _dU DbY C UUT CgYdSX DbY _QT CXUT DbY bUccebU Cg 1 Qb bUccebU CgYdSX DbY FYRbQdY_ Cg 1 Qb FYRbQdY_ Cg DbY 4YWYdQ 3_e dUb...

Страница 56: ...ithin 100 ms with the name that has been chosen Multiple sources may be used to trigger a remote alarm by paralleling inputs B5 D5 EC8 2EDD SR469 Digital Input Dry contact from other device Figure 4 5...

Страница 57: ...s Load Shed Trip will cause a trip within 100 ms 4 4 11 DIGITAL INPUT FUNCTION PRESSURE SWITCH ALARM ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 2 35 616 1 50 520 67 57 3 V B1 75 Y TYS...

Страница 58: ...ESSAGE MESSAGE 9 5 7 21 6 7 50 8QODWFKHG B1 75 QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 66 1 50 5 6 ODUP B1 75 1 Qb 1 Qb 1ehY YQbi 1 Qb 1ehY YQbi 1 Qb 1eh 1eh 1eh 1e...

Страница 59: ...SSAGE 2817 5 50 3 83 2YHU B1 75 fUb E TUb ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 2817 5 50 9 176 2II B1 75 VV FUNCTION Once the Digital Counter function is chosen for one of the a...

Страница 60: ...ehY YQbi DbY 1eh 1eh DbY 1ehY YQbi ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 7 20 7 5 75 3 63 43 5DWHG B1 75 CD5 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 7 20 7 5...

Страница 61: ...l Switch functions that may be assigned to any of the four assignable digital inputs Once a General Switch func tion is chosen for one of the assignable digital inputs the setpoint messages shown here...

Страница 62: ...SSAGE MESSAGE MESSAGE 57 50 OO 5HVHWV B1 75 1 BUcUdc BU _dU BUcUd i Ui QT BUcUd i ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 58 2 67 57 XWR05HVHW B1 75 1 ESCAPE ESCAPE ESCAPE ESCAPE M...

Страница 63: ...7 23 5 7 7 0 6WDWLF B1 75 CdQdYS c ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 23 5 7 58 5 LVDEOHG B1 75 4YcQR UT 5 QR UT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 58...

Страница 64: ...is therefore at a maximum during a locked rotor condition as is rotor heating When the motor is running at rated speed the voltage induced in the rotor is at a low frequency approx 1 Hz and therefore...

Страница 65: ...MESSAGE MESSAGE 57 6 0 080 4882 B1 75 BD4 291C 35 D5B CD5 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 7 50 3 7 50 2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESS...

Страница 66: ...CAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 7 0 72 75 3 7 5183 9919 V B1 75 CD5 D5 DXYc UccQWU SQ _d RU Q dUbUT YV CdQ TQbT 3ebfU Cdi U Yc cU USdUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE...

Страница 67: ...Yc UccQWU cUU _ i YV F_ dQWU 4U U TU d 3ebfU Cdi U Yc cU USdUT The overload curve accounts for motor heating during stall acceleration and running in both the stator and the rotor The Overload Pickup...

Страница 68: ...4 SETPOINT PROGRAMMING S5 THERMAL MODEL 4 29 Multiples of Full Load Amps Time to Trip in Seconds 0 1 1 10 100 1000 10000 100000 0 1 1 10 100 x1 x15 Figure 4 8 SR469 STANDARD OVERLOAD CURVES...

Страница 69: ...06 8 11 12 17 16 22 20 28 24 33 28 39 32 44 36 50 40 55 44 61 48 66 52 72 56 77 60 83 5 00 3 64 7 29 10 93 14 57 18 22 21 86 25 50 29 15 32 79 36 43 40 08 43 72 47 36 51 01 54 65 5 50 2 99 5 98 8 97 1...

Страница 70: ...PROGRAMMING S5 THERMAL MODEL 4 31 Figure 4 9 CUSTOM CURVE EXAMPLE Note During the interval of discontinuity the longer of the two trip times is used to reduce the chance of nuisance tripping during mo...

Страница 71: ...rload The curve is constructed by entering a custom curve shape for the running overload protection curve Next a point must be entered for the acceleration protection curve at the point of intersectio...

Страница 72: ...acceleration overload curve intersect with the custom curve for 80 line voltage Also enter the per unit current and safe stall protection time for 80 line voltage see Figure 4 12 3 Enter the per unit...

Страница 73: ...o 110 voltage This current level is calculated by taking the locked rotor current 100 voltage and multiplying by 1 10 For trip times above the 110 current level the trip time of 110 will be used see F...

Страница 74: ...tection curves for 80 and 100 line voltage respectively For voltages in between the SR469 will shift the acceleration curve linearly and constantly based on measured line voltage during a motor start...

Страница 75: ...ent motor heating current rather than simply using average current Iper_unit This equivalent current is calculated using the equation shown below Ieq I k I I per unit _ 2 2 1 2 1 where Ieq equivalent...

Страница 76: ...minutes Cool Time Constant running or stopped equivalent motor heating current overload pickup setpoint as a multiple of FLA hot cold curve ratio Time in Minutes Thermal Capacity Used 0 25 50 75 100...

Страница 77: ...here is an unusually high ambient temperature or if motor cooling is blocked motor temperature will increase If the motor stator has embedded RTDs the SR469 RTD bias feature should be used to correct...

Страница 78: ...oad conditions when motor heating is relatively fast It should be noted that the RTD bias feature alone cannot create a trip If the RTD bias feature forces the thermal capacity used to 100 the motor c...

Страница 79: ...p delay should be greater than the short cir cuit delay plus the breaker clearing time If the backup is On and a Short Circuit trip has initiated if the phase current to the motor per sists for a peri...

Страница 80: ...oad on a motor 4 7 3 MECHANICAL JAM y 0 1 0 y 17 5 IRU PRUH ENTER ENTER ENTER ENTER ESCAPE ESCAPE ESCAPE ESCAPE 0 1 0 75 3 2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESS...

Страница 81: ...APE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 81 5 855 17 75 3 4 V B1 75 CD5 FUNCTION If enabled once the magnitude of either Ia Ib or Ic falls below the pickup level FLA for a period of time specified b...

Страница 82: ...prevent nuisance alarms when a motor is lightly loaded If enabled once the magnitude of unbalance exceeds the Pickup Level for a period of time specified by the Delay a trip and or alarm will occur I...

Страница 83: ...a period of time specified by the Delay a trip and or alarm will occur There is also a backup trip feature that can be enabled If the backup is On and a Ground Fault trip has initiated if the ground c...

Страница 84: ...ed to break potential faults the feature should be disabled Alternately the feature may be assigned to an auxiliary relay and con nected such that it trips an upstream device that is capable of breaki...

Страница 85: ...differentiate between a motor that has a slow ramp up time and one that has completed a start and gone into an overload condition Therefore if the motor current does not rise to greater than full load...

Страница 86: ...pts will not be exceeded within an hour Similarly the TIME BETWEEN STARTS feature does not guarantee another start will be permitted if the Time Between Starts time elapses after the most recent start...

Страница 87: ...ld be 25 min 12 min 13 min 4 8 4 RESTART BLOCK y 5 67 57 2 y 17 5 IRU PRUH ENTER ENTER ENTER ENTER ESCAPE ESCAPE ESCAPE ESCAPE 5 67 57 2 2II B1 75 VV ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAG...

Страница 88: ...CE TEMP Celsius TEMP Fahrenheit 100 OHM Pt DIN 43760 120 OHM Ni 100 OHM Ni 10 OHM Cu 50 58 80 31 86 17 71 81 7 10 40 40 84 27 92 76 77 30 7 49 30 22 88 22 99 41 82 84 7 88 20 4 92 16 106 15 88 45 8 26...

Страница 89: ...GE MESSAGE 57 4 50 9 176 2II B1 75 VV ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 57 4 75 3 2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 57...

Страница 90: ...SCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 57 50 9 176 2II B1 75 VV ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 57 75 3 2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAP...

Страница 91: ...44 50 7 03 5 785 3 B1 75 CD5 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 57 44 50 9 176 2II B1 75 VV ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 57 44 75 3 2II B1 75 V...

Страница 92: ...SCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 57 45 50 9 176 2II B1 75 VV ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 57 45 75 3 2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE...

Страница 93: ...mmed as latched so that intermittent RTDs are detected and corrective action may be taken 4 9 7 RTD SHORT LOW TEMP y 57 6 2572 2 7 03 y 17 5 IRU PRUH ENTER ENTER ENTER ENTER ESCAPE ESCAPE ESCAPE ESCAP...

Страница 94: ...ay be used to prevent nuisance alarms or trips when the bus is not energized If Yes is programmed for this setpoint at least one voltage must be greater than 20 of the nominal nameplate voltage rating...

Страница 95: ...nabled once the magnitude of either Va Vb or Vc rises above the Pickup Level for a period of time specified by the Delay a trip or alarm will occur Pickup levels are multiples of motor nameplate volta...

Страница 96: ...E ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 5 48 1 75 3 2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 66 1 75 3 5 6 7ULS B1 75 DbY DbY 1ehY YQbi D...

Страница 97: ...Watts and vars This condition is displayed on the SR469 as Watts and vars A syn chronous motor can consume Watts and vars or consume Watts and generate vars These conditions are displayed on the SR46...

Страница 98: ...MESSAGE MESSAGE MESSAGE MESSAGE 32 5 725 75 3 2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 66 1 75 3 5 6 7ULS B1 75 DbY DbY 1ehY YQbi DbY 1eh 1eh DbY 1ehY Y...

Страница 99: ...PE MESSAGE MESSAGE MESSAGE MESSAGE 5 7 9 32 5 75 3 2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 66 1 75 3 5 6 7ULS B1 75 DbY DbY 1ehY YQbi DbY 1eh 1eh DbY 1...

Страница 100: ...5 75 3 9 4 N B1 75 CD5 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 81 532 5 75 3 4 V B1 75 CD5 FUNCTION If enabled once the magnitude of 3 total power falls below the Pickup Level for...

Страница 101: ...ce the magnitude of 3 total power exceeds the Pickup Level in the reverse direction negative kW for a period of time specified by the Delay a trip or alarm will occur NOTE The minimum magnitude of pow...

Страница 102: ...TRIP COUNTER y 75 3 2817 5 y 17 5 IRU PRUH ENTER ENTER ENTER ENTER ESCAPE ESCAPE ESCAPE ESCAPE 75 3 2817 5 50 2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 6...

Страница 103: ...e or motor current does not drop to zero after the programmed time delay an alarm will occur The time delay should be slightly longer than the breaker or contactor operating time In the event that an...

Страница 104: ...4 SETPOINT PROGRAMMING S11 MONITORING 4 65 Figure 4 24 TRIP COIL SUPERVISION...

Страница 105: ...2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 66 1 50 5 6 ODUP B1 75 1 Qb 1 Qb 1ehY YQbi 1 Qb 1eh 1eh 1 Qb 1ehY YQbi 1ehY YQbi 1eh 1eh 1ehY YQbi ESCAPE ESCA...

Страница 106: ...K 38 6 287387 17 59 4 N K B1 75 CD5 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 326 NYDUK 38 6 287 5 2 B1 75 1ehY YQbi 1ehY YQbi 1 Qb 66 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MES...

Страница 107: ...ETPOINT PROGRAMMING 4 68 relay will be activated for 1 second Note this feature should be programmed such that no more than one pulse per second will be re quired or the pulsing will lag behind the in...

Страница 108: ...75 d_ CD5 y 1 2 287387 7 y 17 5 IRU PRUH ENTER ENTER ENTER ENTER ESCAPE ESCAPE ESCAPE ESCAPE 1 2 287387 7 5HDO 3RZHU N B1 75 CUU 1 Q _W ed ed DQR U DQR U ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE ME...

Страница 109: ...0 2500 Hottest Stator RTD 50 to 250 C or 58 to 482 F 1 0 200 Hottest Bearing RTD 50 to 250 C or 58 to 482 F 1 0 200 Ambient RTD 50 to 250 C or 58 to 482 F 1 50 60 RTD 1 12 50 to 250 C or 58 to 482 F 1...

Страница 110: ...E 1 2 13874 75 3 2II B1 75 VV QdSXUT E QdSXUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 66 1 75 3 5 6 7ULS B1 75 DbY DbY 1ehY YQbi DbY 1eh 1eh DbY 1ehY YQbi ESCAPE ESCAPE ESCAPE ESCA...

Страница 111: ...1ehY YQbi 1 Qb 1eh 1eh 1ehY YQbi 1eh 1eh 1ehY YQbi D5 DXYc SQ _ i RU fYUgUT YV 1 Q _W 9 edc Q T QbU U QR UT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 1 2 1 405 50 9 43 B1 75 CD5 D5...

Страница 112: ...50 9 43 B1 75 CD5 D5 DXYc SQ _ i RU fYUgUT YV 1 Q _W 9 edc Q T QbU U QR UT Q T 4YVV Yc cUd ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 2 607 50 9 43 8QLWV B1 75 CD5 D5 DXYc SQ _ i RU f...

Страница 113: ...S12 ANALOG I O 4 SETPOINT PROGRAMMING 4 74...

Страница 114: ...he measured values in the SR469 when the simulation mode is Simulate Pre Fault The values entered as Fault Values will be substituted for the measured values in the SR469 when the simulation mode is S...

Страница 115: ...MESSAGE MESSAGE MESSAGE MESSAGE 35 0 8 7 67 725 57 7 03 73 R B1 75 d_ CD5 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 35 0 8 7 5 1 57 7 03 73 R B1 75 d_ CD5 ESCAPE ESCAPE ESCAPE ESCAPE...

Страница 116: ...E ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 8 7 1 2 1387 4 3 B1 75 CD5 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 8 7 1 2 1387 5 3 B1 75 CD5 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE M...

Страница 117: ...the SR469 is not in protection mode 4 14 6 COMM PORT MONITOR y 200 3257 021 725 y 17 5 IRU PRUH ENTER ENTER ENTER ENTER ESCAPE ESCAPE ESCAPE ESCAPE 021 725 2001 3257 RPSXWHU 567 8 B1 75 3_ edUb BC 1eh...

Страница 118: ...STING 4 79 4 14 7 MULTILIN USE ONLY y 08 7 1 86 21 y 17 5 IRU PRUH ENTER ENTER ENTER ENTER ESCAPE ESCAPE ESCAPE ESCAPE 08 7 1 86 21 2 3 B1 75 1 FUNCTION This section is for use by Multilin personnel f...

Страница 119: ...SQ _d RU Q dUbUT YV CdQ TQbT 3ebfU Cdi U Yc cU USdUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 63 5 75 3 7 4173 69719 V B1 75 CD5 D5 DXYc UccQWU SQ _d RU Q dUbUT YV CdQ TQbT 3ebfU Cd...

Страница 120: ...4313 819 V B1 75 CD5 D5 DXYc UccQWU SQ _d RU Q dUbUT YV CdQ TQbT 3ebfU Cdi U Yc cU USdUT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 63 5 75 3 7 4813 819 V B1 75 CD5 D5 DXYc UccQWU SQ...

Страница 121: ...eed i e normal running current for Speed 2 may be undercurrent for Speed 1 4 15 3 SPEED2 ACCELERATION y 563 1 y 17 5 IRU PRUH ENTER ENTER ENTER ENTER ESCAPE ESCAPE ESCAPE ESCAPE 63 5 1 7 0 5 520 67 57...

Страница 122: ...message illustrations assume that no inputs besides control power are connected to the SR469 Table 5 1 ACTUAL VALUE MESSAGE MAP ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL A...

Страница 123: ...Never ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 02725 63 RZ 6SHHG RANGE High Speed Low Speed NOTE This message is only seen if the Two Speed motor feature is enabled DESCRIPTION Thes...

Страница 124: ...GE MESSAGE MESSAGE MESSAGE 277 67 27 5 57 57 44 32 3UH7ULS RANGE 50 to 250 NOTE this message seen only if at least 1 RTD is programmed as OTHER ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESS...

Страница 125: ...s and analog inputs This information can be cleared using the setpoint in S1 SR469 SETUP under CLEAR DATA NOTE Phase differential and ground currents are recorded 1 cycle prior to the trip All other p...

Страница 126: ...ESSAGE MESSAGE MESSAGE MESSAGE 5281 8 7 50 5816 RANGE 0 1 5000 Note reflects the present ground current level ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 6WDWRU 57 4 50 4682 RANGE 50 t...

Страница 127: ...r Hi Alarms will occur for the other RTDs The alarm message will reflect the alarm name as programmed ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE QDORJ 405 50 83 RANGE 0 999 Diff or 0...

Страница 128: ...ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 66 1 7 13875 67 7 2SHQ RANGE Open Shorted ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 66 1 7 13876 67 7 2SHQ RANGE Open Shor...

Страница 129: ...000 0 NOTE this message seen if the ground CT has 1 or 5A secondary ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 5281 855 17 3133 PSV RANGE 0 00 25 00 NOTE this message seen if the grou...

Страница 130: ...TD programmed as None The first line of this message will reflect the RTD name as programmed ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 57 7 03 5 785 732 RANGE 50 to 250 No RTD open s...

Страница 131: ...ge seen only if VT Connection is programmed as Wye ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 6 67 0 5 48 1 3133 RANGE 0 00 20 00 120 00 DESCRIPTION Measured voltage parameters will b...

Страница 132: ...99 999 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 1 7 9 9 5 2856 31333 0YDUK RANGE 0 000 999999 999 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 72548 33313 1P RANGE 0...

Страница 133: ...nalog Input name and units as programmed ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE QDORJ 23 5 3 8QLWV RANGE 50000 to 50000 Message seen only if analog input is programmed The alarm m...

Страница 134: ...and VTs or phase reversal trips VTs To correct wiring simply start the motor and record the phasors Using the table below along with recorded phasors system rotation VT connection type and motor power...

Страница 135: ...5 0 3 pf lead Va 0 0 0 0 0 Vb Vc 300 300 300 300 300 Ia 100 75 30 345 320 Ib 220 195 150 105 80 Ic 340 315 270 225 200 kW kVAR 0 kVA kW ACB Rotation 72 5 0 3 pf lag 45 0 7 pf lag 0 1 00 pf 45 0 7 pf l...

Страница 136: ...motor current from zero to greater than Overload Pickup This should ensure that the measured current is symmetrical The value displayed is the average of the last 5 successful starts NOTE If there are...

Страница 137: ...ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 57 0 1 7 031 732 RANGE 50 to 250 no RTD Message not seen if RTD programmed as None The first line of this message will reflect the RTD name as programmed ESCAPE...

Страница 138: ...s None The message will reflect the Analog Input name and units as programmed ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE QDORJ 23 6 0 3 8QLWV RANGE 50000 to 50000 Message not seen if...

Страница 139: ...MESSAGE MESSAGE 5281 8 7 75 36 3 RANGE 0 50000 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 3 6 5 17 75 36 3 RANGE 0 50000 ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 5...

Страница 140: ...00 000 Seen only if one of the Assignable Digital Inputs is programmed as Digital Counter DESCRIPTION Two of the SR469 General counters will count the number of motor starts or start attempts and the...

Страница 141: ...A4 MAINTENANCE 5 ACTUAL VALUES 5 20 The TIme Between Starts timer may also be viewed here This may be useful for planning a motor shutdown The Starts Hour timer may also be viewed here...

Страница 142: ...57 32 9 1734 RANGE 50 to 250 No RTD NOTE this message seen only if at least 1 RTD is programmed as AMBIENT ESCAPE ESCAPE ESCAPE ESCAPE MESSAGE MESSAGE MESSAGE MESSAGE 9DE 3 9EF 3 9FD 3 9 9 1734 RANGE...

Страница 143: ...orced Relay General Sw D Trip Overload Alarm Overload Trip Undercurrent Alarm Short Circuit Trip Current U B Alarm Short Circuit Backup Ground Fault Alarm Mechanical Jam Trip Stator RTD 1 Alarm Underc...

Страница 144: ...MESSAGE MESSAGE MESSAGE 6579 227 5 9 6 21 63 433 71333 RANGE 30A100A4 000 30Z999A4 999 DESCRIPTION All of the SR469 Model information may be viewed here when the unit is powered up In the event of a...

Страница 145: ...verload Trip occurred an RTD alarm may also occur as a result of the overload and a lockout time would be associated with the Trip The SR469 would automatically default to the Cause of Last Trip Messa...

Страница 146: ...is outside of the acceptable range of values is entered the SR469 will display this message substituting the proper values for that setpoint An appropriate value may then be entered ACCESS DENIED SHO...

Страница 147: ...these trips and or alarms is still present then this message will appear when the RESET key is pressed ARE YOU SURE PRESS ENTER TO VERIFY If the RESET key is pressed and resetting of any trip or alar...

Страница 148: ...USED TO ADVANCE THE CURSOR Any time a setpoint that requires text editing is viewed this message will appear im mediately to prompt the user to use the key for cursor control If the setpoint is not a...

Страница 149: ...standard Many popular programmable con trollers support this protocol directly with a suitable interface card allowing direct connection of relays Although the Modbus protocol is hardware independent...

Страница 150: ...address of the slave that is sending the response Note A master transmission with a SLAVE ADDRESS of 0 indicates a broadcast command Broadcast commands can be used for specific functions FUNCTION CODE...

Страница 151: ...ation The CRC 16 calculation is an industry standard method used for error detection An algorithm is included here to assist programmers in situations where no standard CRC 16 calculation routines are...

Страница 152: ...e reset i e all slaves start listening for a new transmission from the master Thus at 9600 baud a delay of greater than 3 5 1 9600 10 3 65 ms will cause the communication link to be reset 6 3 SUPPORTE...

Страница 153: ...ess one byte function code one byte byte count of digital input mask one byte bit mask indicating the status of requested digital inputs one or two bytes and CRC two bytes Note the CRC is sent as a tw...

Страница 154: ...gital input status BYTE COUNT 1 02 2 byte bit masks BIT MASK LSB 1 71 bit mask of requested DI BIT MASK MSB 1 01 CRC 2 C5 CRC calculated by the slave B9 EX2 Request slave 11 to respond with status of...

Страница 155: ...unction codes is the slave address function code a count of the number of data bytes to follow the data itself and the CRC Each data item is sent as a two byte number with the high order byte sent fir...

Страница 156: ...16 STORE MULTIPLE SETPOINTS for complete details Supported Operations Reset SR469 operation code 1 Motor Start operation code 2 Motor Stop operation code 3 Waveform Trigger operation code 4 Message F...

Страница 157: ...e 01F4 in Setpoint address 1180 After the transmission in this example is complete Setpoints address 1180 will contain the value 01F4 Master Transmission Bytes Example hex SLAVE ADDRESS 1 0B message f...

Страница 158: ...ay operated 1 B1 R2 Auxiliary relay operated 1 B2 R3 Auxiliary relay operated 1 B3 R4 Alarm relay operated 1 B4 R5 Block Start relay operated 1 B5 R6 Service relay operated 1 B6 Stopped 1 MSBit B7 Run...

Страница 159: ...st Message Format and Example Loopback test from slave 11 Master Transmission Bytes Example hex SLAVE ADDRESS 1 0B message for slave 11 FUNCTION CODE 1 08 loopback test DIAG CODE 2 00 must be 00 00 00...

Страница 160: ...ored and the CRC Message Format and Example Request slave 11 to store the value 01F4 to Setpoint address 1180 and the value 01DE to setpoint address 1181 After the transmission in this example is comp...

Страница 161: ...ds shown in the memory map The Com mand Data registers must be written with valid data if the command operation requires data The selected command will execute imme diately upon receipt of a valid tra...

Страница 162: ...om the master with CRC errors will be ignored by the SR469 The slave response to an error other than CRC error will be SLAVE ADDRESS 1 byte FUNCTION CODE 1 byte with MSbit set to 1 EXCEPTION CODE 1 by...

Страница 163: ...Ch that contains the data at the addresses in the Register Index Register data that is separated in the rest of the memory map may be remapped to adjacent register addresses in the User Definable Regi...

Страница 164: ...tile memory and will be lost if power is cycled to the relay To access the captured waveforms select the waveform of interest by writing its trace memory channel see following table to the Trace Memor...

Страница 165: ...N A F16 N A 0011 Boot Program Modification Number 0 999 1 N A F1 N A 0012 Reserved 007F Reserved Commands Addresses 0080 00FF COMMANDS 0080 Command Function Code 0081 Reserved 0088 Communications Por...

Страница 166: ...rip Current 0 100000 1 A F9 0 022B Phase C Pre Trip Current 0 100000 1 A F9 0 022D Pre Trip Motor Load 0 2000 1 FLA F3 0 022E Pre Trip Current Unbalance 0 100 1 F1 0 022F Pre Trip Ground Current 0 500...

Страница 167: ...Hottest Ambient RTD o F 58 482 1 o F F4 32 0260 Reserved 0264 Reserved ALARM 0265 Remote Alarm Status 0 4 1 FC123 0 STATUS 0266 Pressure Switch Alarm Status 0 4 1 FC123 0 0267 Vibration Switch Alarm...

Страница 168: ...emand Alarm Status 0 4 1 FC123 0 028C kVA Demand Alarm Status 0 4 1 FC123 0 028D Analog Input 1 Alarm Status 0 4 1 FC123 0 028E Analog Input 2 Alarm Status 0 4 1 FC123 0 028F Analog Input 3 Alarm Stat...

Страница 169: ...le Switch 3 Status 0 1 1 FC131 0 02D8 Assignable Switch 4 Status 0 1 1 FC131 0 02D9 Trip Coil Supervision 0 1 1 FC132 0 02DA Reserved 02FB Reserved REAL TIME 02FC Date Read Only N A N A N A N A F18 N...

Страница 170: ...F F4 32 0334 RTD 4 Temperature in Fahrenheit 58 482 1 o F F4 32 0335 RTD 5 Temperature in Fahrenheit 58 482 1 o F F4 32 0336 RTD 6 Temperature in Fahrenheit 58 482 1 o F F4 32 0337 RTD 7 Temperature i...

Страница 171: ...kvar F12 0 0396 Apparent Power Demand 0 50000 1 kVA F1 0 0397 Peak Current Demand 0 100000 1 A F9 0 0399 Peak Real Power Demand 50000 50000 1 kW F12 0 039B Peak Reactive Power Demand 50000 50000 1 kv...

Страница 172: ...8 482 1 o F F4 32 03F1 RTD 2 Max Temperature in Fahrenheit 58 482 1 o F F4 32 03F2 RTD 3 Max Temperature in Fahrenheit 58 482 1 o F F4 32 03F3 RTD 4 Max Temperature in Fahrenheit 58 482 1 o F F4 32 03...

Страница 173: ...50000 1 F1 0 0439 Ground Fault Trips 0 50000 1 F1 0 043A Phase Differential Trips 0 50000 1 F1 0 043B Motor Acceleration Trips 0 50000 1 F1 0 043C Stator RTD Trips 0 50000 1 F1 0 043D Bearing RTD Trip...

Страница 174: ...n F1 0 04A4 Start Timer 2 0 60 1 min F1 0 04A5 Start Timer 3 0 60 1 min F1 0 04A6 Start Timer 4 0 60 1 min F1 0 04A7 Start Timer 5 0 60 1 min F1 0 04A8 Reserved 04BF Reserved SR469 04C0 Order Code 0 6...

Страница 175: ...Only N A N A N A N A F12 N A 1008 Reserved 100F Reserved RS485 1010 Slave Address 1 254 1 F1 254 SERIAL 1011 Computer RS485 Baud Rate 0 5 1 FC101 4 PORTS 1012 Computer RS485 Parity 0 2 1 FC102 0 1013...

Страница 176: ...hpad Message 32 127 1 F1 10D4 Reserved 10DF Reserved 10E0 1st and 2nd Char of 5th Scratchpad Message 32 127 1 F1 Mu 10E1 3rd and 4th Char of 5th Scratchpad Message 32 127 1 F1 lt 10F3 39th and 40th Ch...

Страница 177: ...tio 100 30000 1 F3 3500 11A2 Motor Nameplate Voltage 100 20000 1 V F1 4000 11A3 Enable Single VT Connection 0 1 1 FC143 0 11A4 Reserved 11BF Reserved POWER 11C0 Nominal System Frequency 0 1 1 FC107 0...

Страница 178: ...0 1266 Remote Alarm Events 0 1 1 FC103 0 1267 Reserved 1279 Reserved Remote 127A 1st and 2nd char of Remote Trip Name 0 65535 1 F22 Re Trip 127B 3rd and 4th char of Remote Trip Name 0 65535 1 F22 e 12...

Страница 179: ...erved 12F2 Reserved Digital 12F3 1st and 2nd char of Counter Units Name 0 65535 1 F22 Un Counter 12F4 3rd and 4th char of Counter Units Name 0 65535 1 F22 it 12F5 5th and 6th char of Counter Units Nam...

Страница 180: ...2 50 1345 Reserved 1365 Reserved General 1366 1st and 2nd char of General Switch B Name 0 65535 1 F22 Ge Switch B 1367 3rd and 4th char of General Switch B Name 0 65535 1 F22 ne 136B 11th and 12th cha...

Страница 181: ...D Alarm 0 2 1 FC115 0 13CF General Switch D Alarm Relays 0 6 1 FC113 0 13D0 General Switch D Alarm Delay 1 50000 1 s F2 50 13D1 General Switch D Alarm Events 0 1 1 FC103 0 13D2 General Switch D Trip...

Страница 182: ...15 1 F1 4 SETUP 15B0 Time to Trip at 1 01 x FLA 5 999999 1 s F10 174145 15B2 Time to Trip at 1 05 x FLA 5 999999 1 s F10 34149 15B4 Time to Trip at 1 10 x FLA 5 999999 1 s F10 16667 15B6 Time to Trip...

Страница 183: ...2 Safe Stall Time at Min Vline 5 9999 1 s F2 200 1603 Accel Intersect at Min Vline 200 1500 1 x FLA F3 380 1604 Stall Current at 100 Vline 200 1500 1 x FLA F3 600 1605 Safe Stall Time at 100 Vline 5 9...

Страница 184: ...ENT 1680 Current Unbalance Alarm 0 2 1 FC115 0 UNBALANCE 1681 Current Unbalance Alarm Relays 0 6 1 FC113 0 1682 Current Unbalance Alarm Pickup 4 40 1 F1 15 1683 Current Unbalance Alarm Delay 1 60 1 s...

Страница 185: ...erential Trip Pickup While Running 5 100 1 x CT F3 10 16C5 Differential Trip Delay While Running 0 1000 10 ms F1 0 16C4 Reserved 16CF Reserved ACCELERATIO N 16D0 Acceleration Timer Trip 0 2 1 FC115 0...

Страница 186: ...8th char of RTD 1 Name 0 65535 1 F22 179D Reserved 17AD Reserved 17AE RTD 1 Alarm Temperature in Fahrenheit 34 482 1 o F F1 266 17AF RTD 1 Trip Temperature in Fahrenheit 34 482 1 o F F1 311 RTD 2 17B0...

Страница 187: ...TD 4 Alarm Relays 0 6 1 FC113 0 17F3 RTD 4 Alarm Temperature 1 250 1 o C F1 130 17F4 RTD 4 Alarm Events 0 1 1 FC103 0 17F5 RTD 4 Trip 0 2 1 FC115 0 17F6 RTD 4 Trip Voting 1 12 1 FC122 4 17F7 RTD 4 Tri...

Страница 188: ...d char of RTD 6 Name 0 65535 1 F22 183C 7th and 8th char of RTD 6 Name 0 65535 1 F22 183D Reserved 184D Reserved 184E RTD 6 Alarm Temperature in Fahrenheit 34 482 1 o F F1 266 184F RTD 6 Trip Temperat...

Страница 189: ...891 RTD 9 Alarm 0 2 1 FC115 0 1892 RTD 9 Alarm Relays 0 6 1 FC113 0 1893 RTD 9 Alarm Temperature 1 250 1 o C F1 80 1894 RTD 9 Alarm Events 0 1 1 FC103 0 1895 RTD 9 Trip 0 2 1 FC115 0 1896 RTD 9 Trip V...

Страница 190: ...mperature 1 250 1 o C F1 90 18D9 1st and 2nd char of RTD 11 Name 0 65535 1 F22 18DC 7th and 8th char of RTD 11 Name 0 65535 1 F22 18DD Reserved 18ED Reserved 18EE RTD 11 Alarm Temperature in Fahrenhei...

Страница 191: ...rm 0 2 1 FC115 0 1935 RTD 2 Hi Alarm Relays 0 6 1 FC113 0 1936 RTD 2 Hi Alarm Level 1 250 1 C F1 130 1937 Reserved 1938 RTD 3 Hi Alarm 0 2 1 FC115 0 1939 RTD 3 Hi Alarm Relays 0 6 1 FC113 0 193A RTD 3...

Страница 192: ...AGE 1961 Undervoltage Alarm 0 2 1 FC115 0 1962 Undervoltage Alarm Relays 0 6 1 FC113 0 1963 Undervoltage Alarm Pickup 60 99 1 x Rated F3 85 1964 Starting Undervoltage Alarm Pickup 60 1001 1 x Rated F3...

Страница 193: ...vel 2000 6000 1 Hz F3 5950 19BA Voltage Frequency Trip Delay 0 600 1 s F2 10 19BB Reserved 19CF Reserved POWER 19D0 Block Power Factor Element from Start 0 5000 1 s F1 1 FACTOR 19D1 Power Factor Alarm...

Страница 194: ...1 1A15 Underpower Alarm Events 0 1 1 FC103 0 1A16 Underpower Trip 0 2 1 FC115 0 1A17 Underpower Trip Relays 0 3 1 FC111 0 1A18 Underpower Trip Level 1 25000 1 kW F1 1 1A19 Underpower Trip Delay 1 30...

Страница 195: ...1 FC115 0 FAILURE 1A91 Starter Type 0 1 1 FC125 0 1A92 Starter Failure Alarm Relays 0 6 1 FC113 0 1A93 Starter Failure Alarm Delay 10 1000 10 ms F1 100 1A94 Supervision of Trip Coil 0 2 1 FC142 0 1A9...

Страница 196: ...ve kvarh Pulse Output Relay 0 3 1 FC144 0 1B15 Negative kvarh Pulse Output Interval 1 50000 1 kvarh F1 1 1B16 Running Time Pulse Relay 0 3 1 FC144 0 1B17 Running Time Pulse Interval 1 50000 1 sec F1 0...

Страница 197: ...4 0 1B67 Hottest Bearing RTD Maximum 50 250 1 o C F4 200 1B68 Hottest Ambient RTD Minimum 50 250 1 o C F4 50 1B69 Hottest Ambient RTD Maximum 50 250 1 o C F4 60 1B6A RTD 1 Minimum 50 250 1 o C F4 50 1...

Страница 198: ...50000 1 kvar F1 0 1B97 kvar Demand Maximum 0 50000 1 kvar F1 1000 1B98 kW Demand Minimum 0 50000 1 kW F1 0 1B99 kW Demand Maximum 0 50000 1 kW F1 1250 1B9A kVA Demand Minimum 0 50000 1 kVA F1 0 1B9B k...

Страница 199: ...58 482 1 o F F4 57 1BE3 RTD 5 Maximum in Fahrenheit 58 482 1 o F F4 482 1BE4 RTD 6 Minimum in Fahrenheit 58 482 1 o F F4 57 1BE5 RTD 6 Maximum in Fahrenheit 58 482 1 o F F4 482 1BE6 RTD 7 Minimum in...

Страница 200: ...1 Analog Input 1 Trip Level 50000 50000 1 F12 20 1C23 Analog Input 1 Trip Pickup 0 1 1 FC130 0 1C24 Analog Input 1 Trip Delay 1 3000 1 s F2 1 1C25 1st and 2nd char of Analog Input 1 Name 0 65535 1 F22...

Страница 201: ...C95 Analog Input 3 Maximum 50000 50000 1 F12 100 1C97 Block Analog Input 3 From Start 0 5000 1 s F1 0 1C98 Analog Input 3 Alarm 0 2 1 FC115 0 1C99 Analog Input 3 Alarm Relays 0 6 1 FC113 0 1C9A Analog...

Страница 202: ...har of Analog Input 4 Name 0 65535 1 F22 An 1CEA 11th and 12th char of Analog Input 4 Name 0 65535 1 F22 1CEB Reserved 1CFF Reserved SIMULATION 1D00 Simulation Mode 0 3 1 FC138 0 MODE 1D01 Pre Fault t...

Страница 203: ...D48 Other RTD Fault Temperature 50 250 1 0 C F4 40 1D49 Ambient RTD Fault Temperature 50 250 1 0 C F4 40 1D4A Fault System Frequency 450 700 1 Hz F2 600 1D4B Fault Analog Input 1 0 100 1 range F1 0 1D...

Страница 204: ...p at 3 75 x FLA 5 999999 1 s F10 268 1E20 Speed2 Time to Trip at 4 00 x FLA 5 999999 1 s F10 233 1E22 Speed2 Time to Trip at 4 25 x FLA 5 999999 1 s F10 205 1E24 Speed2 Time to Trip at 4 50 x FLA 5 99...

Страница 205: ...P M F1 3600 1EB4 Reserved 1EFF Reserved ANALOG 1F00 Analog In Differential 1 2 Enable 0 1 1 FC126 0 INPUT 1 2 1F01 1st and 2nd char of Analog In Diff 1 2 Name 0 65535 1 F22 An DIFF 1F06 11th and 12th...

Страница 206: ...1 1 FC147 0 1F2A Analog In Differential 3 4 Block from Start 0 5000 1 s F1 0 1F2B Analog In Differential 3 4 Alarm 0 2 1 FC115 0 1F2C Analog In Differential 3 4 Alarm Relays 0 6 1 FC113 0 1F2D Analog...

Страница 207: ...Current 0 5000 1 A F1 0 3017 Event Phase C Differential Current 0 5000 1 A F1 0 3018 Event Hottest Stator RTD 0 12 1 F1 0 3019 Event Temperature of Hottest Stator RTD 50 250 1 o C F4 0 301A Event Hot...

Страница 208: ...2 30E3 Event Ambient RTD Temperature in Fahr 58 482 1 o F F4 32 TRACE 30E4 Reserved MEMORY 30EF Reserved 30F0 Trace Number Selector 1 65535 1 F1 0 30F1 Trace Memory Channel Selector 0 9 1 F1 0 30F2 Tr...

Страница 209: ...ong Value 2nd 16 bits Low Order Word of Long Value Example 123456 stored as 123456 ie 1st word 0001 hex 2nd word E240 hex F10 32 bits UNSIGNED LONG VALUE 1 DECIMAL PLACE 1st 16 bits High Order Word of...

Страница 210: ...b 20 1995 stored as 34867142 ie 1st word 0214 2nd word 07C6 F19 32 bits TIME HH MM SS hh 1st byte Hours 0 to 23 2nd byte Minutes 0 to 59 3rd byte Seconds 0 to 59 4th byte Hundreds of seconds 0 to 99 E...

Страница 211: ...A Secondary 3 Multilin CT 50 0 025 FC105 Unsigned 16 bit integer Differential CT Type 0 None 1 1 A Secondary 2 5 A Secondary FC106 Unsigned 16 bit integer Voltage Transformer Connection Type 0 None 1...

Страница 212: ...0 1 FC113 Unsigned 16 bit integer Alarm Relays 0 Alarm 1 Alarm Aux2 2 Alarm Aux2 Aux3 3 Alarm Aux3 4 Aux2 5 Aux2 Aux3 6 Aux3 FC114 Unsigned 16 bit integer Counter Type 0 Increment 1 Decrement FC115 Un...

Страница 213: ...RTD 6 7 RTD 7 8 RTD 8 9 RTD 9 10 RTD 10 11 RTD 11 12 RTD 12 FC123 Unsigned 16 bit integer Alarm Status 0 Off 1 Not Active 2 Timing Out 3 Active 4 Latched FC124 Unsigned 16 bit integer Phase Rotation...

Страница 214: ...city Used 33 Relay Lockout Time 34 Current Demand 35 kvar Demand 36 kW Demand 37 kVA Demand 38 Motor Load 39 Analog Input 1 40 Analog Input 2 41 Analog Input 3 42 Analog Input 4 43 Tachometer 44 MWhrs...

Страница 215: ...Sw D Trip 12 Overload Trip 13 Short Circuit Trip 14 Short Circuit Backup 15 Mechanical Jam Trip 16 Undercurrent Trip 17 Current U B Trip 18 Ground Fault Trip 19 Ground Fault Backup 20 Differential Tri...

Страница 216: ...RTD 10 Alarm 75 RTD 11 Alarm 76 RTD 12 Alarm 77 Open RTD Alarm 78 Short Low RTD Alarm 79 Undervoltage Alarm 80 Overvoltage Alarm 81 Volt Frequency Alarm 82 Power Factor Alarm 83 Reactive Power Alarm 8...

Страница 217: ...phase CT 1 Code P1 1A phase CT Bit 1 0 Code HI High Voltage Power Supply 1 Code LO Low Voltage Power Sup ply Bit 2 0 Code A20 4 20 mA Analog Outputs 1 Code A1 0 1 mA Analog Outputs FC137 Unsigned 16 b...

Страница 218: ...er Trip Coil Supervision Selection 0 Disabled 1 S2 Close 2 S2 Open Close FC143 Unsigned 16 bit integer Single VT Selection 0 Off 1 AN Wye AB Delta 2 BN Wye BC Delta 3 CN Wye N A Delta FC144 Unsigned 1...

Страница 219: ...firmware hardware interaction in the process Since the SR469 is packaged in a drawout case a demo case metal carry case in which an SR469 may be mounted may be useful for creating a portable test set...

Страница 220: ...NT PHASE A A MEASURED CURRENT PHASE B A MEASURED CURRENT PHASE C A 0 1 0 5 100 0 2 1 0 200 0 5 2 5 500 1 5 1000 1 5 7 5 1500 2 10 2000 7 2 2 VOLTAGE INPUT ACCURACY TEST The SR469 specification for vol...

Страница 221: ...ENT TEST 5A INJECTED CURRENT 5 A UNIT A EXPECTED CURRENT READING A MEASURED GROUND CURRENT A MEASURED DIFFERENTIAL CURRENT PHASE A A MEASURED DIFFERENTIAL CURRENT PHASE B A MEASURED DIFFERENTIAL CURRE...

Страница 222: ...A2 METERING DATA CURRENT METERING Table 7 5 MULTILIN 50 0 025 GROUND CURRENT TEST PRIMARY INJECTED CURRENT 50 0 025 CT A SECONDARY INJECTED CURRENT mA EXPECTED CURRENT READING A MEASURED GROUND CURRE...

Страница 223: ...F 1 2 3 4 5 6 7 8 9 10 11 12 86 17 50 58 120 00 0 32 157 74 50 122 200 64 100 212 248 95 150 302 303 46 200 392 366 53 250 482 Table 7 8 RTD 100 OHM NICKEL TEST APPLIED RESISTANCE 100 OHM NICKEL ohm...

Страница 224: ...2 Open Shorted ASSIGNABLE INPUT 3 Open Shorted ASSIGNABLE INPUT 4 Open Shorted TRIP COIL SUPERVISION No Coil Coil 7 2 7 ANALOG INPUTS AND OUTPUTS The SR469 specification for analog input and analog ou...

Страница 225: ...output values should be 0 01mA on the ammeter Measured analog input values should be 10 units Force the analog outputs using the following setpoints SETPOINT S13 TESTING TEST ANALOG OUTPUT FORCE ANALO...

Страница 226: ...Table 7 13 OUTPUT RELAYS FORCE OPERATION SETPOINT EXPECTED MEASUREMENT 4 for SHORT ACTUAL MEASUREMENT 4 for SHORT R1 R2 R3 R4 R5 R6 R1 R2 R3 R4 R5 R6 no nc no nc no nc no nc no nc no nc no nc no nc no...

Страница 227: ...FE STALL RATIO 1 00 SETPOINT S5 THERMAL MODEL THERMAL MODEL ENABLE RTD BIASING No SETPOINT S5 THERMAL MODEL O L CURVE SETUP STANDARD OVERLOAD CURVE NUMBER 4 2 Any trip must be reset prior to each test...

Страница 228: ...uracy of the measured values View the measured values in ACTUAL VALUES A2 METERING DATA POWER METERING Table 7 15 POWER MEASUREMENT TEST INJECTED CURRENT 1A UNIT APPLIED VOLTAGE Ia is reference vector...

Страница 229: ...ing formula is I I Iavg FLA x 2 1 100 Figure 7 2 THREE PHASE EXAMPLE FOR UNBALANCE CALCULATION Symmetrical component analysis of vectors using the mathematic vector convention yields a ratio of negati...

Страница 230: ...a 7 8 0 Ib 10 247 Ic 10 113 15 Ia 0 39 0 Ib 0 5 247 Ic 0 5 113 Ia 1 95 0 Ib 2 5 247 Ic 2 5 113 7 7 3 4 VOLTAGE PHASE REVERSAL TEST The SR469 can detect voltage phase rotation and protect against phase...

Страница 231: ...RCUIT TRIP SHORT CIRCUIT TRIP On SETPOINT S6 CURRENT ELEMENTS SHORT CIRCUIT TRIP ASSIGN TRIP RELAYS Trip SETPOINT S6 CURRENT ELEMENTS SHORT CIRCUIT TRIP SHORT CIRCUIT TRIP PICKUP 5 0 x CT SETPOINT S6...

Страница 232: ...iguration Relay firmware upgrade procedure Creating Editing Upgrading Downloading Setpoint Files Printing Setpoints and Actual Values Using Trending and Waveform Capture Viewing Phasors and Event Reco...

Страница 233: ...utton If the program is not to be located in the default directory C GEPM 469PC click on the Browse button to locate the path where you wish to install the program 9 If the program already exists and...

Страница 234: ...ill display the same information as displayed by the actual relay LED status and display message shown will match actual relays if communications is established If the 469PC program cannot establish c...

Страница 235: ...l previously programmed setpoints will be erased 4 Locate the firmware file to load into the relay 5 Select OK to proceed or Cancel to abort 6 Select Yes to proceed No to load a different file or Canc...

Страница 236: ...program e g System Setup and enter the new setpoints When you are finished programming a page select OK and store the information to the computer s scratchpad memory note this action does store the i...

Страница 237: ...ect Setpoints from the menu and choose the appropriate section of setpoints to program e g SR469 Setup and enter any new setpoints When you are finished programming a page select OK and store the info...

Страница 238: ...the PC program will break communications with the connected relay and change the Status bar to say Editing File Not Communicating 5 Select File Send Info To Relay to download the setpoint file to the...

Страница 239: ...the location and file name of the saved Setpoint File to be downloaded to the connected relay When the file is open the 469PC program will be in File Editing mode and Not Communicating 4 Select File P...

Страница 240: ...ge Setup and highlight one of the Setpoints bubbles Select OK 4 Select File Print and OK to send the Setpoint file to the connected printer 1 To print the Relay Actual Values run the 469PC program and...

Страница 241: ...ve Power Apparent Power Peak Apparent Power Others Analog Inputs 1 2 3 4 Tachometer 1 To use the Trending function run the 469PC program and establish communications with a connected SR469 relay 2 Sel...

Страница 242: ...NG 0RGH 6HOHFW OLFN RQ WKHVH EXWWRQV WR YLHZ XUVRU LQH 4 XUVRU LQH 5 RU HOWD GLIIHUHQFH YDOXHV IRU WKH JUDSK1 HYHO LVSOD V WKH YDOXH RI WKH UDSK DW WKH DFWLYH XUVRU LQH1 DYHIRUP 7KH WUHQGHG GDWD IURP...

Страница 243: ...appear is the waveform of Phase A current of the last trip of the SR469 The date and time of this trip is displayed on the top of the window The RED vertical line indicates the trigger point of the re...

Страница 244: ...8 469PC PROGRAM WAVEFORM CAPTURE 8 13 Figure 8 11 WAVEFORM CAPTURE...

Страница 245: ...menu then click on the Phasors tab on the Metering Data Window The phasor diagram and the values of voltage phasors and current phasors are displayed Note Longer arrows are the voltage phasors shorter...

Страница 246: ...d establish communications with a connected SR469 Relay 2 Select Actual Event Recording from the main menu to open the Event Recording Window The Event Recording Window displays the list of events wit...

Страница 247: ...U RI HYHQWV VLQFH ODVW FOHDU YHQW LVWLQJ LVW RI YHQWV ZLWK WKH PRVW UHFHQW GLVSOD HG RQ WRS 9LHZ DWD OLFN WR GLVSOD WKH GHWDLOV RI VHOHFWHG YHQWV YHQW 6HOHFW XWWRQV 3XVK WKH OO EXWWRQ WR 6HOHFW DOO YH...

Страница 248: ...compatible with the 469PC program and therefore it is required to update this file with the latest version which is supplied on the Setup disks of the 469PC program shipped with every new SR469 Relay...

Страница 249: ...Update Interval Cyclic Load Filter Interval VOLTAGE SENSING SERIAL PORTS VT Connection Type Slave Address Enable Single VT Connection Comp RS485 Baud Rate Voltage Transformer Ratio Comp RS485 Parity M...

Страница 250: ...al Switch Trip Delay PRESSURE SWITCH TRIP GENERAL SWITCH B Block Trip From Start Switch Name Assign Trip Relays General Switch State Pressure Switch Trip Delay Block Input From Start General Switch Al...

Страница 251: ...Block Start Reset Mode Auto Reset R3 Auxiliary Reset Mode R6 Service Reset Mode Force Output Relay Force R1 Output Relay Force R1 Operation Time Force R2 Output Relay Force R2 Operation Time Force R3...

Страница 252: ...ays Time to Trip 2 25 x FLA Undercurrent Trip Pickup Time to Trip 2 50 x FLA Undercurrent Trip Delay Time to Trip 2 75 x FLA CURRENT UNBALANCE Time to Trip 3 00 x FLA Current Unbalance Alarm Time to T...

Страница 253: ...Used Margin S8 SETPOINTS RTD TEMPERATURE Stator RTD Type Ambient RTD Type Bearing RTD Type Other RTD Type RTD Application Name Alarm Assign Alarm Relays Alarm Temp Alarm Events 1 2 3 4 5 6 7 8 9 10 11...

Страница 254: ...kvar Element From Start Assign Alarm Relays Reactive Power Alarm Alarm Pickup Assign Alarm Relays Alarm Delay Positive kvar Alarm Level Alarm Events Negative kvar Alarm Level Overvoltage Trip Alarm De...

Страница 255: ...ssign Alarm Relays Current Demand Limit Alarm Events kW DEMAND kW Demand Period kW Demand Alarm Assign Alarm Relays kW Demand Limit Alarm Events kvar DEMAND kvar Demand Period kvar Demand Alarm Assign...

Страница 256: ...log Input 3 Analog Input 4 Enabled Name Units Minimum Maximum Block From Start Alarm Assign Alarm Relays Alarm Level Alarm Pickup Alarm Delay Alarm Events Trip Assign Trip Relays Trip Level Trip Picku...

Страница 257: ...PEED 2 U C Speed2 Trip Speed2 U C Blk From Start Speed2 Trip Speed2 U C Alarm Speed2 Trip Speed2 U C Alarm Speed2 Trip Speed2 U C Alarm Delay Speed2 Trip Speed2 U C Alarm Speed2 Trip Speed2 U C Trip S...

Страница 258: ...splits up to return to its re spective source CT Polarity is very important since the value of phase B must be the negative equivalent of A C in order for the sum of all the vectors to equate to zero...

Страница 259: ...l always work and unbalance will be detected properly In the event of a single phase there will always be a large unbalance present at the interposing CTs of the relay If for example phase A was lost...

Страница 260: ...of preference 1 The motor running and stopped cool times or constants may be provided on the motor data sheets or by the manufacturer if requested Remember that the cooling is exponential and the time...

Страница 261: ...ound fault input of GE Multilin motor protection relays should be used to ensure correct performance These CTs have a 50 0 025A 2000 1 ratio and can sense low leakage currents over the relay setting r...

Страница 262: ...FAULT CTS FOR 5A SECONDARY CT For low resistance or solidly grounded systems a 5 A secondary CT should be used Two sizes are available with 5 or 13 x16 win dows Various Primary amp CTs can be chosen...

Страница 263: ...nt transformers in most common ratios from 50 5 to 1000 5 are available for use as phase current inputs with motor protection relays These come with mounting hardware and are also available with 1 A s...

Страница 264: ...ssage 4 5 default messages 4 6 demand 4 65 5 12 demand data 4 14 demand period 4 66 device number 1 1 diagnostic messages 5 23 dielectric strength testing 2 19 differential 4 44 differential CT primar...

Страница 265: ...ad curve test 7 9 overload pickup 4 25 overvoltage 4 55 P passcode 3 5 4 4 peak apparent power demand 5 12 peak current demand 5 12 peak demand 4 8 5 12 peak reactive power demand 5 12 peak real power...

Страница 266: ...2 16 start inhibit 4 45 starter failure 4 63 information 4 9 operations 4 14 status 4 15 status switch 4 13 starting current 4 9 starting thermal capacity 4 9 starts hour 4 46 starts hour block 4 14...

Страница 267: ...13 FIGURE 4 2 REDUCED VOLTAGE STARTING CURRENT CHARACTERISTIC 4 13 FIGURE 4 3 REDUCED VOLTAGE STARTER AUXILIARY A STATUS INPUT 4 13 FIGURE 4 4 REDUCED VOLTAGE STARTER AUXILIARY B STATUS INPUT 4 14 FIG...

Страница 268: ...T FILE 8 5 FIGURE 8 6 EDITING A SETPOINT FILE 8 6 FIGURE 8 7 DOWNLOADING A SETPOINT FILE TO THE SR469 8 7 FIGURE 8 8 UPGRADING SETPOINT FILE TO NEW REVISION 8 8 FIGURE 8 9 PRINTING 8 9 FIGURE 8 10 TRE...

Страница 269: ...LE 7 2 VOLTAGE INPUT TEST 7 2 TABLE 7 3 DIFFERENTIAL AND GROUND CURRENT TEST 5A 7 3 TABLE 7 4 DIFFERENTIAL AND GROUND CURRENT TEST 1A 7 3 TABLE 7 5 MULTILIN 50 0 025 GROUND CURRENT TEST 7 4 TABLE 7 6...

Страница 270: ...id to an authorized service centre or the factory Repairs or replacement under warranty will be made without charge Warranty shall not apply to any relay which has been subject to misuse negligence ac...

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