WEG ECW500, User Manual

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Summary .
6.5.2 MTVC (Automatic) ............................................................................................................ 41
6.5.3 MECC (Manual) ................................................................................................................ 41
6.5.4 MTVC_DROOP ................................................................................................................ 42
6.5.5 MPFC (Power Factor Control) ........................................................................................... 43
6.5.6 MRPC (Var Control).......................................................................................................... 43
6.5.7 Switching Between Operating Modes ............................................................................... 43
6.6 LIMITERS.......................................................................................................................................... 45
6.6.1 Underfrequency Limiter (LUF) ........................................................................................... 45
6.6.2 Excitation Overcurrent Limiter (LEOC) ............................................................................... 47
6.6.3 Excitation Undercurrent Limiter (LEUC) ............................................................................. 48
6.6.4 Terminal Overcurrent Limiter (LTOC) ................................................................................. 49
6.7 PROTECTIONS ................................................................................................................................ 50
6.7.1 Feedback Loss Protection (PFL) ....................................................................................... 51
6.7.2 Excitation Overvoltage Protection (PEOV) ......................................................................... 51
6.7.3 Fault Protection in the Rotating Diodes (PED) ................................................................... 51
6.7.4 Excitation Loss Protection (PEL) ....................................................................................... 52
6.7.5 Terminal Overvoltage Protection (PTOV) ........................................................................... 52
6.7.6 Terminal Undervoltage Protection (PTUV) ......................................................................... 52
6.7.7 Power Module Overtemperature Protection ...................................................................... 52
6.7.8 Power Phase Loss Protection .......................................................................................... 52
6.7.9 Maximum/Minimum Protection Limits of the PWM ............................................................ 52
6.7.10 Analog Input in Current: Loss Protection (PLCI) ............................................................. 53
6.8 CRITICAL PROTECTION ................................................................................................................. 53
6.8.1 Underfrequency Protection............................................................................................... 53
6.8.2 Excitation Overcurrent Protection (PEOC) ......................................................................... 53
6.8.3 DC Link Overvoltage Protection........................................................................................ 53
6.8.4 Fault Protection on Triggers of the Power Switches .......................................................... 53
6.9 DIGITAL RELAY OUTPUT ............................................................................................................... 53
6.9.1 Status Relay .................................................................................................................... 53
6.9.2 General Fault Relay .......................................................................................................... 53
6.9.3 Configurable Relays 0, 1, 2 and 3 .................................................................................... 53
6.10 SOFT START................................................................................................................................. 54
6.11 AUTOMATIC TUNING (AUTOTUNING)....................................................................................... 54
6.11.1 Configuration Parameters ............................................................................................. 54
6.11.2 Commands .................................................................................................................. 56
6.11.3 Messages ..................................................................................................................... 57
6.11.4 Monitoring .................................................................................................................... 57
6.12 SPECIAL FUNCTIONS ................................................................................................................. 57
6.12.1 Self-Calibration of the Excitation Current Measurement ................................................. 57
6.12.2 Self-Calibration of the Analog Inputs ............................................................................. 58
7 MODBUS RTU COMMUNICATION..................................................... 59
7.1 STRUCTURE OF THE MESSAGES IN THE RTU MODE ............................................................... 59
7.2 MODBUS FUNCTIONS AVAILABLE ON THE ECW500 ................................................................. 59
7.2.1 Parameter Types of the ECW500 ..................................................................................... 59
7.3 SERIAL TRANSMISSION ................................................................................................................. 60
7.3.1 Time Between Messages ................................................................................................. 60
7.3.2 Physical Interface ............................................................................................................. 60
8 ETHERNET COMMUNICATION (MODBUS TCP) .............................. 62
9 ANYBUS COMMUNICATION .............................................................. 63
10 STARTUP ............................................................................................ 64
10.1 REQUIRED EQUIPMENT ............................................................................................................. 64
10.2 PREPARATION AND POWER-UP OF THE ELECTRONICS...................................................... 64
10.3 SYSTEM DATA ............................................................................................................................. 64
10.4 CONFIGURING THE ECW500 ..................................................................................................... 64
10.4.1 Rated Parameters ......................................................................................................... 64
10.4.2 Operating Modes and Limiters ...................................................................................... 65
10.4.3 Input and Output Configuration ..................................................................................... 65