5.11 U: Monitor Parameters
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 321
5.11 U: Monitor Parameters
Monitor parameters let the user view various aspects of drive performance using the digital operator display. Some
monitors can be output from terminals FM and AM by assigning the specific monitor parameter number (U-) to
H4-0
1 and H4-04. Refer to H4-01, H4-04: Multi-Function Analog Out
put Terminal FM, AM Monitor Selection on
page 262 for details on assigning functions to
an analog output.
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 510 for a complete list of U1- monitors and descriptions.
U2: Fault Trace
These monitor parameters are used to view the status of various drive aspects when a fault occurs.
This information is helpful for finding
out why a fault occurred. Refer to U2: Fault Trace on page 512 for a complete list
of U2- monitors and descriptions.
U2- monitors are not reset when
the drive is initialized. Refer to o4-11: U2, U3 Initialization on page 319 for
instructions on how to reset these monitor values.
Note: Fault trace (i.e., the fault history) is not kept when CPF00, CPF01, CPF06, CPF24, oFA00, oFb00, oFC00, Uv1, Uv2, and Uv3
occur.
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 514 for a complete list of U3- monitors and descriptions.
U3- monitors are not reset when
the drive is initialized. Refer to o4-11: U2, U3 Initialization on page 319 for
instructions on how to reset these monitor values.
Note: Fault trace (i.e., the fault history) is not kept when CPF00, CPF01, CPF06, CPF24, oFA00, oFb00, oFC00, Uv1, Uv2, and Uv3
occur.
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 freque
ncy 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 514 for a complete list of U4- monitors and descriptions.
U5: PID Monitors
These monitors display various aspects of PID control. Refer to PID Block Diagram on page 170 for details on how
these monitors display PID data.
U5: PID Monitors on page 516 has a complete list of U5- monitors and descriptions.
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