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9. Modbus register map

Power XPert® release triP unit for MagnuM PXr circuit breakers

MN013015EN January 2022 www.eaton.com

Table 21. Modbus real-time data status decoding.

Primary status

code register

number 6145

(high)

Definition

secondary

status code

number 6145

(low)

Definition

0x01

Open

0x03

Test mode

0x02

Closed

0x07

Powered-up

0x03

Tripped

0x08

Alarm

0x04

Alarmed

0x0D

Picked-up

cause of status register

number 6146

Definition

0x0000

Unknown

0x0001

Normal

0x0003

Instantaneous

0x0005

Instant. neutral over current

0x000E

Aux-power under power

0x001F

Operations count

0x0021

Control via communication

0x0029

Battery low alarm

0x003D

Long delay

0x003E

Short delay

0x0049

High load alarm 1

0x004B

Making current release

0x004C

Fixed hardware instantaneous

0x004D

Setpoints error

0x004E

Over temperature

0x0050

Long delay neutral over current

0x0054

Ground fault

0x0055

Earth fault

0x0071

Calibration

0x0088

Real-time clock

0x0099

MM mode

0x009A

Breaker mechanism fault

0x07FD

Non-volatile memory error

0x07FE

Watchdog fault

0x009E

Short delay neutral over current

0x009F

Thermal memory alarm

0x00A0

Local test from LCD

0x00A1

High load alarm 2

0x00A2

Ground fault pre-alarm

Содержание Power Xpert PXR 20

Страница 1: ...Power Xpert Release trip unit for Magnum PXR circuit breakers PXR 20 25 user manual MN013015EN PXR 20 PXR 25 ...

Страница 2: ... FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OTHER THAN THOSE SPECIFICALLY SET OUT IN ANY EXISTING CONTRACT BETWEEN THE PARTIES ANY SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF EATON THE CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE PARTIES In no event will Eaton be responsible to the purchaser or user in contract in tort including negligence strict...

Страница 3: ...9 Test and configuration port 7 2 10 Battery 7 2 11 Breaker continuous current rating 7 2 12 Real time clock 7 2 13 Operating temperature 8 2 14 Trip unit frame and voltage modules within the trip unit 8 2 15 End user license agreement 9 3 PROTECTION FUNCTIONS 10 3 1 Password security 10 3 2 Overload long delay settings 10 3 3 Short circuit settings 11 3 4 Instantaneous protection setting 11 3 5 H...

Страница 4: ...4 6 2 Event recording and waveform capture 24 6 3 Health monitor 26 6 4 Testing the circuit breaker and trip unit 26 6 5 Testing for ground fault trip units primary injection 28 6 6 Testing within the switchgear 28 7 MAINTAINING THE PXR TRIP UNIT 30 7 1 Troubleshooting 30 7 2 Replacing the trip unit 31 7 3 Replacing the battery 31 7 4 Changing the breaker rating 32 8 DOCUMENTATION CROSS REFERENCE ...

Страница 5: ...v MN013015EN Power Xpert Release trip unit for Magnum PXR circuit breakers MN013015EN January 2022 www eaton com ...

Страница 6: ...ing of a circuit breaker that results in the tripping of the circuit breaker should be done only with the circuit breaker in the test or discon nected cell positions or while the circuit breaker is on a test bench WARNING Electrical shock or burn injury can occur when working on power systems Always turn off the main power that is supplying the circuit breaker before conducting tests Test out of t...

Страница 7: ...ease visit www eaton com magnumpxr Power Xpert Protection Manager PXPM software for the PXR 20 25 provides cost savings and advanced functional ity This intuitive user interface allows for simple trip unit configuration testing and real time reporting of operating conditions including current voltage power and energy The software also provides waveform captures post event logs as well as the abili...

Страница 8: ...k Enable disable Neutral protection ANSI 50N ANSI 51N 4th pole or external neutral x Ir OFF 60 100 OFF 60 100 Instantaneous protection I ANSI 50P Instantaneous pickup x In OFF 2 4 5 6 7 8 10 12 15 OFF 2 to 15 in steps of 0 1 Making current release level determined by frame A Y Ground earth fault protection G ANSI 51G ZSI ANSI 68 Ground protection Residual source ground or zero sequence Ground faul...

Страница 9: ...eps of 1 ANSI 32R Power protection Reverse power pickup kW 1 to 65 500 in steps of 1 Reverse power delay Seconds 1 to 300 in steps of 1 1 5 Current voltage frequency power and energy data Both the PXR 20 and PXR 25 provide real time metering information regarding the loads being protected The PXR 25 includes monitoring of voltage and phase angle to support power and energy data All accuracy requir...

Страница 10: ...gy kVAh Reactive received in quadrant 3 4 kvarh Reactive delivered in quadrant 1 2 kvarh Reactive total delivered received kvarh Reactive net delivered received kvarh Note a Neutral current accuracy for internal sensor 4 pole breakers Please note that maximum and minimum values are held until reset using PXPM or the display Demand values are on a configurable fixed or sliding window of 5 to 60 min...

Страница 11: ...ting for details When the status indicator remains off either there is no auxiliary power applied or insufficient primary current to power the trip unit PXR trip units will self power at approxi mately 40 A of current in the breaker 2 2 Display and menu navigation buttons The PXR trip unit has a display on the front of the trip unit This display provides information regarding the operation of the ...

Страница 12: ... is applied The indicators and the display can be cleared by pressing the RESET button LONG Long delay trip or over temperature trip has occurred SHORT Short delay trip or an abnormal breaker condi tion has occurred INST Instantaneous making current release over ride or maintenance mode trip GND Ground trip or ground alarm condition has occurred 2 4 PXR 20 Configure using rotary switches In the PX...

Страница 13: ...ecurity holes to meet applicable tamper proof requirements Also see section 3 1 Password security as part of providing tamper resistance 2 9 Test and configuration port Near the bottom of the PXR trip unit there is a small door with the Universal Serial Bus USB icon printed on it The door can be opened downward to expose the USB port utiliz ing a micro B USB connection This door can also be sealed...

Страница 14: ...igured frame information regarding the rating calibration settings and operation The interface circuit for the sensors as well as the configurable relays are mounted in the frame module A label is attached to the side of the frame module It contains a brief description the Eaton style number serial number and hardware revision Figure 6 Frame module label The voltage sensing module VDB is used with...

Страница 15: ... 15 End user license agreement The End User License Agreement EULA IL0131158EN is a legal agreement between you and Eaton which governs your use of the PXR trip units It is included in the documenta tion shipped with the breaker and with trip units shipped separately Please review this important document Figure 7 Figure 7 EULA ...

Страница 16: ...curity of your password For additional information about best practices please review Cybersecurity Considerations for Electrical Distribution Systems WP152002EN http www eaton com ecm groups public pub eaton corp documents content pct_1603172 pdf 3 2 Overload long delay settings The PXR trip unit offers a wide range of settings for overload protection Long delay pickup LDPU or Ir setting ranges f...

Страница 17: ...eaker with no inten tional time delay The instantaneous INST indicator shows this cause of trip Figure 9 Ground fault examples 3 5 High instantaneous withstand trip The PXR trip unit provides a factory set function that will trip the circuit breaker at currents above the short time withstand rating of the circuit breaker frame The function is always active on breakers with interrupting capacity hi...

Страница 18: ...tral Sensors for the appropriate sensors 3 6 2 Source ground and zero sequence method By setting the ground fault type to source ground zero sequence either sensing method is enabled in the trip unit Source ground sensing uses a current sensor on the equip ment s ground bonding jumper The output of the sensor directly measures the total ground current flowing in the grounding conductor When the cu...

Страница 19: ...f ground fault current gets to a desired level The pre alarm activate level can be set from 50 to 100 of the Ig pickup value The pre alarm notification can also be mapped to the one of the three trip unit relays 3 7 Enhanced protection settings The PXR 25 offers an additional set of functions which can be used to generate an alarm or trip the breaker Each has specific setpoints for pick up and tim...

Страница 20: ...r different levels of protection A higher level may be needed when for example another load fed from this breaker may contain motors that are being started and create large inrush currents over the lowest trip current level The selection of one of the reduction settings should be determined and selected by a person who is experienced in power system analysis 3 8 1 Activation and indication of main...

Страница 21: ...f the signal the PXR breaker will immediately trip since it is the closest circuit breaker to the fault The ZSI is wired using a set of three wires labeled Zone In ZI Zone Out ZO and Zone Common ZC on the second ary terminals above the circuit breaker These signals are compatible with all Eaton circuit breakers which have the ZSI function The zone out signal is sent whenever the ground fault picku...

Страница 22: ...show a checkmark which is correct But feeder 13 shows a checkmark Further inspection will find that feeder 13 has its input and output signals wired incorrectly Additional information on ZSI can be found in the Eaton appli cation note AP02602002E 3 10 Making current release MCR All PXR trip unit styles have a making current release MCR function This safety feature prevents the circuit breaker from...

Страница 23: ...lays The PXR contains three relays which can be configured to indicate various conditions within the circuit breaker They have factory default configuration depending on style to indi cate relay 1 Maintenance Mode Active or Health Warning relay 2 High Load Alarm or Ground Fault Alarm and relay 3 Breaker Trip all current triggered trips The contacts of the relays are wired at the circuit breaker s ...

Страница 24: ... RESET button is pressed or communications reset command received Instantaneous trip There is an instantaneous trip or withstand override trip RESET button is pressed or communications reset command received Table 8 Configurable relay functions continued Condition function name Description of relay operation The relay will close when The relay will open when Short circuit trip There is a short ins...

Страница 25: ...he PXR is a responding device using the remote terminal unit RTU protocol it will process commands from another device and respond with the function or data requested Breaker status closed tripped open setpoints and operating information are all available via Modbus The trip unit supports Modbus function codes 2 3 4 6 and 16 Single and multiple read or write operations can transact up to 122 regis...

Страница 26: ...member auxiliary control power is not required to provide current protection features Protection is active well before any overload The trip unit begins to power up at very low levels of current approximately 40 A In situations where auxiliary control power may be intermit tent or sag during a transfer an uninterruptable power supply UPS is recommended to ensure continuous operation of the relays ...

Страница 27: ...nsor for overcurrent or residual ground C16 N Connect to the external neutral current sensor jumper if not needed and in a 4 pole breaker See Section 4 1 Neutral sensors White X1 C17 N Grey X2 Ground fault sensor for source ground or zero sequence C7 G1 Connect to the source ground or zero sequence sensor when used See Section 3 6 2 Source ground and zero sequence C8 G2 Configurable relays C10 RY1...

Страница 28: ...amically changes based on your setting changes Figure 18 PXPM setpoint screen Typical actions available from the configuration screens include View and edit setpoints For each setpoint its range step size and description are shown in the tool tip when a user hovers the mouse cursor over that setpoint Save as Saves setpoints to a configuration file Users will be prompted to select a location and a ...

Страница 29: ... of event is categorized and viewable in the order they occurred Events which capture a waveform also show an icon which can be used to view that waveform 5 7 Reports The software allows you to create a PDF file which contains information about the circuit breaker its real time operating conditions the events which have been recorded and the setpoints it is using You can also add your application ...

Страница 30: ...e relays for details on the configuration and behavior of the relays 6 2 Event recording and waveform capture The PXR trip unit will automatically record information surrounding events alarms and trips into a set of logs For simple events only the cause of the event and a timestamp based on the trip unit s real time clock are stored More important events additionally store a snapshot of real time ...

Страница 31: ... exit test mode Event test complete Event enter maintenance mode Indicator also illuminates Event exit maintenance mode Indicator un illuminates Event time change if 60 seconds Previous time is recorded Event admin password entered Event admin password changed Event user password entered Event user password changed Event wrong password entered Alarm calibration Alarm setpoints fault Alarm battery ...

Страница 32: ...ker is in operation If the breaker is not operated within a full year additional points are added The health of the circuit breaker is summarized with a health percentage calculated from the indices with new breakers reporting 100 health corresponding to 100 remaining service life The three indices are combined using the highest of the three indices when viewing on the display in the Diagnostics S...

Страница 33: ...t that injects a signal in parallel with the output of the current sensor This signal is measured the same as a signal from the sensor would be measured The protection circuitry and trip algorithm operate with no knowledge of the secondary injection circuit The trip unit and circuit breaker respond and configured operation is verified PXPM software initiates the functional testing using second ary...

Страница 34: ...Always turn off the main power that is supplying the circuit breaker before conducting tests Test out of the cell if possible To avoid improper operations following apparently correct simulated test operations the polarity of the neutral sensor connections if used must agree with the equipment assem bler s detailed instructions Where a question exists consult the specifying engineer and or equipme...

Страница 35: ...nly from the sensors within the breaker frame It will not self power from external neutral or ground fault sensors With primary injection your protection and enhanced protection settings may trip the breaker For example ground faults or phase loss trips may be generated when current is applied on individual phases When testing a breaker may trip outside of its own settings because of ZSI signals T...

Страница 36: ...orrect or tripping unexpectedly Neutral sensor connected is not matched to selected option Make sure that neutral sensor selection is set for Rogowski or iron core CT to match what is connected See Section 4 1 Neutral sensors The breaker trips too rapidly on long delay Long time memory is selected Disable the long time memory for long delay times setting See Section 3 2 1 Long delay thermal memory...

Страница 37: ...ure 24 and has locking tabs on the sides circled in the Figure 24 Squeeze the locking tabs inward and gently disengage the connector Figure 24 Installing the ETU wire harness 4 To install the new trip unit first connect the wiring harness at the top of the trip unit It is a keyed connector and you should hear a slight click as the locking tabs engage Then to mount the trip unit align it with the g...

Страница 38: ...the frame module A licensed feature of the PXPM software allows you to modify the rating within an allowed range based on the breaker construction and certification Order kit PXPM SW PXRIN KIT 1 to obtain the license and new rating labels You can purchase this online by navigating to www eaton com PXPM and clicking Get Licensed Today You are responsible to ensure that any rating change is appropri...

Страница 39: ...ecent and complete set of documentation The Magnum PXR Product Guide avail able there includes complete information about the family of circuit breakers trip units and accessories Table 13 Documentation references Documentation number Document name IL0131154EN Neutral current sensors Magnum PXR ACB trip units IL0131158EN Eaton Corporation EULA for Power Xpert Release PXR 20 25 IL0131132EN Ethernet...

Страница 40: ...6 16 4002 0x0fa1 Parity 0 None 1 Odd 2 Even factory default 3 4 6 16 4003 0x0fa2 Stop bit 0 1 bit factory default 1 2 bits 9 1 2 Exception codes When there is an error in the request an exception code will be returned for the following conditions Table 16 Modbus exception codes Returned value Condition 0x01 Function or sub function code in the query is not supported 0x02 Requested data register bi...

Страница 41: ...9 Modbus breaker status Register number Address hex Input status descriptions Register number Address hex Validity 1001 0x03E8 Breaker is in the closed position 1017 0x03F8 Breaker is in the closed position is valid 1002 0x03E9 Un acknowledged trip condition 1018 0x03F9 Un acknowledged trip condition is valid 1003 0x03EA Active alarm 1019 0x03FA Active alarm is valid 1005 0x03EC Maintenance mode i...

Страница 42: ...6E 0x186E Product ID 3 4 4721 6257 0x1270 0x1870 Frequency Hz 100 3 4 6259 0x1872 Forward energy kWh 1 3 4 6261 0x1874 Reverse energy kWh 1 3 4 6263 0x1876 Total energy kWh 1 3 4 6271 0x187E Apparent energy kVAh 1 3 4 4765 6301 0x129C 0x189C Temperature C 1 3 4 6305 0x18A0 Forward energy 8 byte format Wh 1 3 4 6309 0x18A4 Reverse energy 8 byte format Wh 1 3 4 6313 0x18A8 Total energy 8 byte format...

Страница 43: ...c THD 100 3 4 4929 6465 0x1340 0x1940 Vca THD 100 3 4 4931 6467 0x1342 0x1942 Van THD 100 3 4 4933 6469 0x1344 0x1944 Vbn THD 100 3 4 4935 6471 0x1346 0x1946 Vcn THD 100 3 4 4959 6495 0x135E 0x195E INST SDT HIGH_INST count 1 3 4 4961 6497 0x1360 0x1960 LFT GFT count 1 3 4 4963 6499 0x1362 0x1962 Operations count 1 3 4 4965 6501 0x1364 0x1964 Short delay trip count 1 3 4 4967 6503 0x1366 0x1966 Ins...

Страница 44: ... following values to this register to select the harmonics of interest default 0 0 Ia 1 Ib 2 Ic 4 In 5 Vab 6 Vbc 7 Vca 8 Van 9 Vbn 10 Vcn 3 4 5027 6563 0x13A2 0x19A2 Harmonic content 1st 100 3 4 5029 6565 0x13A4 0x19A4 Harmonic content 2nd 100 3 4 5031 6567 0x13A6 0x19A6 Harmonic content 3rd 100 3 4 Harmonic content 100 3 4 5087 6623 0x13E0 0x19E0 Harmonic content 31st 100 9 3 1 Status within the ...

Страница 45: ...0x0005 Instant neutral over current 0x000E Aux power under power 0x001F Operations count 0x0021 Control via communication 0x0029 Battery low alarm 0x003D Long delay 0x003E Short delay 0x0049 High load alarm 1 0x004B Making current release 0x004C Fixed hardware instantaneous 0x004D Setpoints error 0x004E Over temperature 0x0050 Long delay neutral over current 0x0054 Ground fault 0x0055 Earth fault ...

Страница 46: ...nt registers The starting address must be aligned with the start of an object and the number of registers to obtain must align with the end of an object Table 23 Modbus mapped registers Func code Register number Address hex Length R W Definition 3 4 16 1001 0x03E8 100 R W Block of 100 registers for the mapping assignments 3 4 1201 0x04B0 200 R Data that has been remapped 200 registers maximum 9 4 ...

Страница 47: ...0LGNC 3 PXR20VN30LGNM 4 PXR20VN30LGAC 5 PXR20VN30LGAM 6 PXR25VN30LNNM 7 PXR25VN30LGNM 8 PXR25VN30LNAM 9 PXR25VN30LGAM 10 PXR20VN30LNAM 11 PXR20VN30LNAC 3 4 6 3006 0x0BBD Maintenance mode Enable See note b08 MM current state read only b07 MM rotary switch on off read only b06 MM rotary switch position valid or not read only b01 MM remote control 0 off 1 on read write b00 MM local control read only ...

Страница 48: ... 3 short delay trip 4 short circuit trip 5 instantaneous trip 6 ground fault trip 7 maintenance mode trip 8 all trips 9 high load alarm 1 10 high load alarm 2 11 high temperature 12 ground fault 13 thermal memory 14 watchdog 15 low battery 16 internal fault 17 setpoint mismatch 18 low health 19 communication fault 20 all faults 21 aux contact 22 bell contact 23 maintenance mode active 24 ZSI activ...

Страница 49: ...20VN30LNNM 2 PXR20VN30LGNC 3 PXR20VN30LGNM 4 PXR20VN30LGAC 5 PXR20VN30LGAM 6 PXR25VN30LNNM 7 PXR25VN30LGNM 8 PXR25VN30LNAM 9 PXR25VN30LGAM 10 PXR20VN30LNAM 11 PXR20VN30LNAC 3 4 6 3006 0x0BBD LD thermal memory R W 0 disable 1 enable 3 4 6 3007 0x0BBE ZSI R W 0 disable 1 enable 3 4 6 3008 0x0BBF LD slope See note PXR 20 read 2 I2 t PXR 25 read write 0 I0 5 t 1 It 2 I2 t 3 I4 t 3 4 6 3009 0x0BC0 LD p...

Страница 50: ...20 to 150 3 4 6 3016 0x0BC7 Ground sensing R W 0 residual 1 source zero sequence 3017 0x0BC8 Ground action R W 0 trip 1 alarm 2 OFF 3018 0x0BC9 Ground slope R W 0 flat 1 I2 T 3019 0x0BCA Ground pickup Ig See note PXR 20 read only 0 OFF 20 0 2xIn 40 0 4xIn 60 0 6xIn 80 0 8xIn 100 1 0xIn PXR 25 read write valid range 0 20 to 100 3020 0x0BCB Ground time tg See note PXR 20 read only 10 0 1s 20 0 2s 30...

Страница 51: ...ime R W Valid range 1 to 300 seconds 3 4 6 3011 0x0BC2 Current unbalance action R W 0 trip 1 alarm 2 OFF 3 4 6 3012 0x0BC3 Current unbalance pickup R W Valid range 5 to 25 as of phase voltage 3 4 6 3013 0x0BC4 Current unbalance time R W Valid range 1 to 300 seconds 3 4 6 3014 0x0BC5 Reverse power action R W 0 trip 1 alarm 2 OFF 3 4 6 3015 0x0BC6 Reverse power pickup R W Valid range 1 to 65500 kW 3...

Страница 52: ...block of registers should be written in a single command A time change event is only generated when the time difference between old and new is greater than 60 seconds Table 29 Modbus date and time data Function code Register number Address hex Definition Value range 3 4 6 16 2921 0x0B68 Month 1 12 3 4 6 16 2922 0x0B69 Day 1 31 3 4 6 16 2923 0x0B6A Year 2015 2099 3 4 6 16 2924 0xB6B Day of week 1 S...

Страница 53: ...00 Encoded Event type alarm 0x81FF 3 4 8194 0x2001 Unsigned32 Earliest event ID 3 4 8196 0x2003 Unsigned32 Latest event ID 3 4 16 8198 0x2005 Unsigned32 Requested event ID 3 4 8200 0x2007 Unsigned32 Previous event ID 3 4 8202 0x2009 Unsigned32 Next event ID 3 4 8204 0x200B Date time Date time 3 4 8212 0x2013 Encoded Format of data minor alarm 0x0006 3 4 8213 0x2014 Bits Object validity bits 3 4 82...

Страница 54: ...3 4 8234 0x2029 Unsigned16 VCN 3 4 8235 0x202A Signed32 Real 3 phase power W 3 4 8237 0x202C Signed32 Reactive 3 phase power VAR 3 4 8239 0x202E Unsigned32 Apparent 3 phase power VA 3 4 8241 0x2030 Signed32 Real 3 phase power demand W 3 4 8243 0x2032 Signed32 Reactive 3 phase power demand VAR 3 4 8245 0x2034 Unsigned32 Apparent 3 phase power demand VA 3 4 8247 0x2036 Singed16 Device temperature 1 ...

Страница 55: ...g x In Trip function Pickup setting x Ampere equivalent Time delay setting Instantaneous In A N A Long delay Ir In A Sec Short delay Ir A Sec Ground fault In A Sec Date By Table 32 Records trip operations Magnum PXR Automatic trip operation record Circuit address Breaker shop order reference Trip function Settings reference Orig 0 Rev 1 Rev 2 Rev 3 Instantaneous Long delay setting Long delay time ...

Страница 56: ...anuary 2022 www eaton com Table 33 Records ground fault test Ground fault test record form Ground fault test record should be retained by those in charge of the building s electrical installation in order to be available to the authority having jurisdiction Test date Breaker number Results Tested by ...

Страница 57: ...tes Energy log window Off Long delay slope I2 t Long delay pickup 100 Long delay time 4 s Thermal memory Enabled Short delay slope Flat Short delay Pickup 300 Short delay time 300 ms Instantaneous pickup 400 Ground fault slope Flat Ground fault pickup 40 Ground fault delay time 300 ms Ground fault pre alarm Off External ground ratio Fixed Neutral protection 100 Current unbalance pickup Off Current...

Страница 58: ...d Cleveland OH 44122 United States Eaton com 2022 Eaton All Rights Reserved Printed in USA Publication No MN013015EN TBG001562 January 2022 Eaton is a registered trademark All trademarks are property of their respective owners ...

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