1.13 U: Monitor ParametersMonitor parameters let the user view various aspects of drive performance using the HOA keypad 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 96 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 232 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 233 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 134 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 234 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 134 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 236 for a complete list of U4-oo monitors and descriptions.u U5: PI MonitorsThese monitors display various aspects of PI control. Refer to PI Block Diagram on page 39 for details on how these monitorsdisplay PI data. Refer to U5: PI Monitors on page 237 for a complete list of U5-oo monitors and descriptions.u U6: Operation Status MonitorsThese monitors display reference data for the output voltage and vector control and the offset value added to the frequencyreference by the frequency offset function. Refer to Settings 44, 45, and 46: Offset Frequency 1, 2, 3 on page 79 for details.Refer to U6: Operation Status Monitors on page 238 for a complete list of U6-oo monitors and descriptions.1.13 U: Monitor Parameters158 YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual
