Yaskawa AC Drive Z1000 Bypass Technical Manual Manuale Utente Pagina 194

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5.14 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 165 for details on
assigning functions to an analog output.
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UB: Bypass Monitors
These monitors display various aspects of bypass control. Refer to UB: Bypass Control Monitors on page 334 for a complete
list of UB-oo monitors and descriptions.
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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 336 for a complete list of U1-oo monitors and descriptions.
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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 337 for a complete list of
U2-oo monitors and descriptions.
U2-oo monitors are not reset when the drive is initialized.
Note: Fault histories are not kept when CPF00, CPF01, CPF06, CPF24, oFA00, oFb00, oFC00, Uv1, Uv2, or Uv3 occur.
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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 338 for a complete list of U3-oo monitors and descriptions.
U3-oo monitors are not reset when the drive is initialized.
Note: Fault histories are not kept when CPF00, CPF01, CPF06, CPF24, oFA00, oFb00, oFC00, Uv1, Uv2, or Uv3 occur.
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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 340 for a complete list of U4-oo monitors and descriptions.
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U5: PI Monitors
These monitors display various aspects of PI control. Refer to PI Block Diagram on page 130 for details on how these monitors
display PI data. Refer to U5: PI Monitors on page 341 for a complete list of U5-oo monitors and descriptions.
5.14 U: Monitor Parameters
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YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual
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