Eaton PKE-COM-RTU, Manual

Page 1: ...PKE COM RTU Modbus RTU Communication interface for PKE12 32 65 Manual 03 20 MN034005EN ...

Page 2: ...8 00 a m 6 00 p m EST After hours emergency 800 543 7038 6 00 p m 8 00 a m EST Drives Technical Resource Center Voice 877 ETN CARE 386 2273 option 2 option 6 8 00 a m 5 00 p m Central Time U S UTC 6 Email TRCDrives Eaton com www eaton com drives Original Operating Manual The German language edition of this document is the original operating manual Translation of the original operating manual All e...

Page 3: ...r the 24 V supply Only use power supply units complying with IEC 60364 4 41 or HD 384 4 41 S2 VDE 0100 Part 410 Deviations of the mains voltage from the nominal value must not exceed the tolerance limits given in the specifications otherwise this may result in malfunction and hazardous states Emergency Stop devices complying with IEC EN 60204 1 must be effective in all operating modes of the autom...

Page 4: ...al information 8 2 2 Communication 8 2 3 Device plug 9 2 3 1 Communication parameters 9 2 4 Operating mode Modbus RTU 9 2 5 Structure of the master request 10 2 5 1 Address 10 2 5 2 Function code 10 2 5 3 Data 10 2 5 4 Cyclic redundancy check CRC 10 2 6 Structure of the slave response 10 2 6 1 Required transmission time 10 2 6 2 Normal slave response 10 2 6 3 No slave response 11 2 6 4 Modbus Regi...

Page 5: ...on date Page Keyword new modified deleted 03 20 First edition 0 3 Reading conventions Symbols used in this manual have the following meanings indicates actions to be taken draws your attention to interesting tips and supplementary information 0 3 1 Hazard warnings concerning material damage 0 3 2 Hazard warnings concerning personal injury For greater clarity the name of the current chapter and the...

Page 6: ...with adapted Modbus RTU connection cable and 24VDC connection is connected to the device plug 4 with the module PKE COM RT The RTU slave address must be set prior to installation via the DIP switches 2 The status LED 3 indicates the communication status of the module via Modbus RTU and the communication status to the PKE trip block The mechanical fixing of the PKE COM RTU with the corresponding PK...

Page 7: ... blocks of the type Extended can be combined with the PKE basic devices PKE12 PKE32 and PKE65 The PKE COM RTU obtains its power for the communication electronics as well as for controlling the LED from the 24 V DC supply on the device plug The specifications for the control voltage supply can be found in the technical data in the appendix 1 4 Installation Wire the main circuits of the PKE device R...

Page 8: ...on the device 2 ON 1 2 3 4 5 6 ON 1 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 Addr 2 Addr 1 Addr 63 1 1 2 4 8 16 32 Connect the PKE COM RTU to the PKE basic device Install the PKE Extended type trip block PKE XTUA 1 4 Installation 1 PKE COM RTU interface connection for the motor or circuit breaker PKE12 32 65 ...

Page 9: ...ing 6 DIP switches can be used to set addresses up to 63 The DIP switches specify the address in binary form with DIP switch 1 setting the lowest value and DIP switch 6 setting the highest value For example to set the address to 41 set DIP switches 1 4 and 6 to ON All DIP switches set to 0 will reset the device to the factory setting after it has been supplied with power 1 6 Changing modules DANGE...

Page 10: ...he Modbus RTU status LED 1 8 Parameterization The module is parameterized via the connected Modbus RTU master Color State Message Green Continuous light Standard operation mode Flashing 1 Hz Modbus RTU communication Red Continuous light PKE tripped Flashing 1 Hz Communication error 1 7 Device status 1 PKE COM RTU interface connection for the motor or circuit breaker PKE12 32 65 ...

Page 11: ...between master and slave The master sends a request to a slave and waits for a response The master sends a request to all slaves and does not wait for a response broadcast More information on the topic can be found at www modbus org 2 2 Communication Figure 2 Modbus line with PKE Figure 2 shows a typical setup with a host computer master and any number a maximum of 63 modules of PKE slaves Each PK...

Page 12: ...odbus RTU operating mode Operating mode Modbus RTU Remote Terminal Unit transfers the data in binary format faster data rate and determines the transfer format for the data request and the data response Each message byte that is sent contains two hexadecimal characters 0 9 A F Data is transferred between a master SPS and the PKE according to the following sequence Master request The master sends a...

Page 13: ...y of the parity check for the individual characters of the telegram The CRC result is appended to the frame by the master The slave recalculates while receiving the telegram and compares the calculated value with the actual value in the CRC field If both values are not identical an error is set 2 6 Structure of the slave response 2 6 1 Required transmission time The time between receiving a reques...

Page 14: ... the messages is less than 3 5 characters The master must be programmed to repeat the request if it does not receive a response within a specified time 2 6 4 Modbus Register mapping Register mapping makes it possible to process the contents listed in the following table in PKE via Modbus RTU For some controls e g PLC it is possible that these contain an offset of 1 in the interface driver for Modb...

Page 15: ...e highest phase current for PKE XTU W A only 33 330 mA 3 0011 I REL L1 Relative phase current L1 for PKE CP only 2 7 5 Relative current value I REL 3 0012 I REL L2 Relative phase current L2 for PKE CP only 2 7 5 Relative current value I REL 3 0013 I REL L3 Relative phase current L3 for PKE CP only 2 7 5 Relative current value I REL 3 0014 I REL L1 real value Real phase current L1 for PKE CP only 3...

Page 16: ...hase loss Specifies how often the PKE has switched off with phase failure Always available 3 0034 LOG PKE test trip Specifies how often the PKE has been switched off with test trip Always available 3 0035 LOG PKE remote trip Specifies how often the PKE has been switched off with remote tripping Always available 3 0036 LOG PKE flash Specifies how often the memory has been written Always available 3...

Page 17: ...top bit 00 1 bit default setting 01 2 bits 4 4004 SW reset Saves the new baud rate parity and stop bit settings without restarting the device 0 no Reset 1 Reset 4 4005 Activate boot loader Activates the boot loader by writing the value from ASIC2_serialLW Remote tripping through output bit R TRIP causes a trip if a phase current of at least 85 of the minimum mark of the variable overload release o...

Page 18: ... an overcurrent is reduced to 40 compared to when the phase load is symmetrical The interruption of the main circuits is executed early if the thermal motor image reaches 100 Ir value PKE XTU A 1 2 Ir A PKE XTU A 4 Ir A PKE XTU A 12 Ir A PKE XTU W A 32 Ir A PKE XTU W A CP 36 Ir A PKE XTUA 36A Ir A PKE XTU A 65 Ir A PKE XTU A CP 65 Ir A 0x0 0 30 1 00 3 00 8 00 15 00 8 00 16 00 30 00 0x1 0 33 1 10 3...

Page 19: ...sent The maximum measuring accuracy of the transferred relative current value is 5 2 7 6 Thermal motor image TH Depending on the current range and the actual current flow the PKE motor protective circuit breaker calculates the thermal state of the motor and provides it as a data byte The thermal load of the motor is mapped via register 30006 It will be represented as a relative value within a rang...

Page 20: ...ses a trip if a phase current of at least 85 of the minimum mark of the variable overload release on the PKE trip block flows through all three main circuits for example PKE XTUA 4 Imin 0 85 1 A 0 85 A The maximum duration of the tripping process from the time the PKE RTU receives the trip signal to the actual time of tripping of the PKE basic device is 700 ms Field Value Type of trip block XTUA 0...

Page 21: ... Level 3 kV 8 Contact discharge Level 2 kV 4 Electromagnetic fields IEC EN 61131 2 2008 80 1000 MHz V m 10 1 4 2 GHz V m 3 2 2 7 GHz V m 1 Radio interference suppression EN 55011 Class A Burst IEC EN 61131 2 2008 Level 3 Fieldbus cable kV 1 Inflow IEC EN 61131 2 2008 Level 3 V 10 Ambient climatic conditions Operating ambient temperature IEC 60068 2 C 25 to 60 Condensation prevent with suitable mea...

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