Yaskawa AC Drive Z1000 AC Drive HVAC Fan - Manual (Page 158)

1.13 U: Monitor Parameters
Monitor parameters let the user view various aspects of drive performance using the HOA keypad display. Some monitors
can 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 on
assigning functions to an analog output.
u U1: Operation Status Monitors
Status monitors display drive status data such as output frequency and output current. Refer to U1: Operation Status
Monitors on page 232 for a complete list of U1-oo monitors and descriptions.
u U2: Fault Trace
Use 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 of
U2-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 instructions
on 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 History
These parameters display faults that have occurred during operation as well as the drive operation time when those faults
occurred. 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 instructions
on 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 Monitors
Maintenance 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 selection
Refer to U4: Maintenance Monitors on page 236 for a complete list of U4-oo monitors and descriptions.
u U5: PI Monitors
These monitors display various aspects of PI control. Refer to PI Block Diagram on page 39 for details on how these monitors
display PI data. Refer to U5: PI Monitors on page 237 for a complete list of U5-oo monitors and descriptions.
u U6: Operation Status Monitors
These monitors display reference data for the output voltage and vector control and the offset value added to the frequency
reference 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 Parameters
158 YASKAWA ELECTRIC SIEP YAIZ1U 03A YASKAWA AC Drive – Z1000 Programming Manual