1.12 U: Monitor ParametersMonitor parameters let the user view various aspects of drive performance using the digital operator display. Some monitorscan be output from terminals FM and AM by assigning the specific monitor parameter number (Uo-oo) to H4-01 and H4-04.Refer to H4-01, H4-04: Multi-Function Analog Output Terminal FM, AM Monitor Selection on page 121 for details onassigning functions to an analog output.u U1: Operation Status MonitorsStatus monitors display drive status data such as output frequency and output current. Refer to U1: Operation StatusMonitors on page 298 for a complete list of U1-oo monitors and descriptions.u U2: Fault TraceUse these monitor parameters to view the status of various drive aspects when a fault occurs.This information is helpful for determining the cause of a fault. Refer to U2: Fault Trace on page 300 for a complete list ofU2-oo monitors and descriptions.U2-oo monitors are not reset when the drive is initialized. Refer to o4-11: U2, U3 Initialization on page 166 for instructionson how to reset these monitor values.Note: Fault histories are not kept when CPF00, CPF01, CPF06, CPF24, oFA00, oFb00, oFC00, Uv1, Uv2, or Uv3 occur.u U3: Fault HistoryThese parameters display faults that have occurred during operation as well as the drive operation time when those faultsoccurred. Refer to U3: Fault History on page 302 for a complete list of U3-oo monitors and descriptions.U3-oo monitors are not reset when the drive is initialized. Refer to o4-11: U2, U3 Initialization on page 166 for instructionson how to reset these monitor values.Note: Fault histories are not kept when CPF00, CPF01, CPF06, CPF24, oFA00, oFb00, oFC00, Uv1, Uv2, or Uv3 occur.u U4: Maintenance MonitorsMaintenance monitors show:• Runtime data of the drive and cooling fans and number of Run commands issued• Maintenance data and replacement information for various drive components• kWh data• Highest peak current that has occurred and output frequency at the time the peak current occurred• Motor overload status information• Detailed information about the present Run command and frequency reference source selectionRefer to U4: Maintenance Monitors on page 302 for a complete list of U4-oo monitors and descriptions.u U5: PID MonitorsThese monitors display various aspects of PID control. Refer to PID Block Diagram on page 36 for details on how thesemonitors display PID data.Refer to U5: PID Monitors on page 305 for a complete list of U5-oo monitors and descriptions.u U6: Operation Status MonitorsControl monitors show:• Reference data for the output voltage and vector control• Data on PM motor rotor synchronization, forward phase compensation, and flux positioning• Pulse data from the PG motor encoder• Pulse data for Zero Servo control• ASR and Feed Forward control monitorsRefer to Figure 1.33 and Figure 1.34 on page 53 for details and an illustration showing where monitors are located in theASR block.1.12 U: Monitor ParametersYASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual 1711 Parameter Details
