Operating instructions

3 Functions Issue 10/06
MICROMASTER 420 Operating Instructions
36 6SE6400-5AA00-0BP0
3.5.5.15 Inverter-specific Functions...................................................................................... 83
3.5.6 Series commissioning............................................................................................. 86
3.5.7 Parameter reset to the factory setting..................................................................... 88
3.6 Inputs / outputs ....................................................................................................... 89
3.6.1 Digital inputs (DIN).................................................................................................. 89
3.6.2 Digital output (DOUT) ............................................................................................. 92
3.6.3 Analog input (ADC)................................................................................................. 94
3.6.4 Analog output (DAC)............................................................................................... 96
3.7 Communication....................................................................................................... 98
3.7.1 Universal serial interface (USS)............................................................................ 100
3.7.1.1 Protocol specification and bus structure............................................................... 102
3.7.1.2 The structure of net data....................................................................................... 109
3.7.1.3 USS bus configuration via COM link (RS485)...................................................... 118
3.8 Fixed frequencies (FF).......................................................................................... 121
3.9 Motorized potentiometer (MOP) ........................................................................... 124
3.10 JOG....................................................................................................................... 126
3.11 PID controller (technological controller)................................................................ 128
3.11.1 PID motorized potentiometer (PID-MOP) ............................................................. 130
3.11.2 PID fixed setpoint (PID-FF)................................................................................... 131
3.12 Setpoint channel ................................................................................................... 132
3.12.1 Summation and modification of the frequency setpoint (AFM)............................. 132
3.12.2 Ramp-function generator (RFG)........................................................................... 134
3.12.3 OFF/braking functions .......................................................................................... 137
3.12.4 Manual / automatic operation ............................................................................... 139
3.13 Motor holding brake (MHB)................................................................................... 141
3.14.1 DC braking............................................................................................................ 147
3.14.2 Compound braking................................................................................................ 150
3.15 Automatic restart................................................................................................... 152
3.16 Flying restart ......................................................................................................... 154
3.17.1 Vdc_max controller ............................................................................................... 156
3.18 Monitoring functions / messages .......................................................................... 158
3.18.1 General monitoring functions / messages ............................................................ 158
3.19 Thermal motor protection and overload responses ............................................. 160
3.19.1 Thermal motor model............................................................................................ 160
3.19.2 PTC temperature sensor ...................................................................................... 162
3.20 Power module protection
...................................................................................... 164
3.20.1 General overload monitoring ................................................................................ 164
3.20.2 Thermal monitoring functions and overload responses........................................ 165
3.21 Open-loop/closed-loop control technique............................................................. 168
3.21.1 V/f control.............................................................................................................. 168
3.21.1.1 Voltage boost........................................................................................................ 170
3.21.1.2 V/f open-loop control with flux current control (FCC)............................................ 172
3.21.1.3 Slip compensation................................................................................................. 172
3.21.1.4 V/f resonance damping......................................................................................... 174
3.21.1.5 Current limiting (Imax controller)........................................................................... 175