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
7MODBUS 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
8ETHERNET COMMUNICATION (MODBUS TCP)..............................62
9ANYBUS 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
