GE EntelliPro ES Series, Installation And Instruction Manual

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TABLE OF CONTENTS
EP OS MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
Chapter 3: Motor Protection
3.1 Thermal Overload ....................................................................................................................................................................................... 3.1
3.1.1 Unbalance and phase-loss biasing.................................................................................................................................. 3.2
3.1.2 Hot/cold biasing ....................................................................................................................................................................... 3.2
3.1.3 Overload curve .......................................................................................................................................................................... 3.3
3.1.4 Cooling rate ................................................................................................................................................................................ 3.6
3.1.5 Overload protection n-times reset .................................................................................................................................. 3.15
3.1.6 Overload protection programmable settings............................................................................................................. 3.17
3.2 Phase loss and current unbalance .................................................................................................................................................... 3.19
3.3 Ground fault ................................................................................................................................................................................................. 3.20
3.4 Overcurrent and stalled rotor protection ........................................................................................................................................ 3.21
3.5 Undercurrent protection......................................................................................................................................................................... 3.23
3.6 Thermistor (TMA)......................................................................................................................................................................................... 3.25
Chapter 4: Communication
4.1 Modbus RTU .................................................................................................................................................................................................. 4.1
4.1.1 Modbus address setting ........................................................................................................................................................ 4.1
4.1.2 Modbus baud rate and port configuration ................................................................................................................... 4.3
4.1.3 Modbus function codes ......................................................................................................................................................... 4.4
4.1.4 Modbus topology...................................................................................................................................................................... 4.5
4.1.5 RS-485 connections ................................................................................................................................................................ 4.6
4.1.6 RS-485 termination considerations ......................................................................................................................... . .........4.6
4.1.7 Grounding shielding considerations ................................................................................................................................ 4.6
4.1.8 Implementation basics .......................................................................................................................................................... 4.7
4.1.9 Modbus RTU message format ............................................................................................................................................ 4.7
4.1.10 EntelliPro ES Function Code................................................................................................................................................. 4.8
4.1.10.1 Function code 03H............................................................................................................................................. 4.8
4.1.10.2 Function Code 04H ............................................................................................................................................ 4.9
4.1.10.3 Function Code 05H ............................................................................................................................................ 4.10
4.1.10.4 Function Code 06H ........................................................................................................................................... 4.13
4.1.10.5 Function Code 10H ........................................................................................................................................... 4.14
4.1.10.6 Function Code
14
H ........................................................................................................................................... 4.15
4.1.10.7 Function Cod
e
1
5
H ........................................................................................................................................... 4.15
4.1.11 Error Responses ....................................................................................................................................................................... 4.16
4.1.12 Modbus Register Map............................................................................................................................................................ 4.17