U: Monitor Parameters; U1: Operation Status Monitors; U2: Fault Trace; U3: Fault History - YASKAWA A1000 Series Technical Manual

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 -
H4-01 and H4-04. Refer to H4-01, H4-04: Multi-Function Analog Output Terminal FM, AM Monitor Selection on
page 239 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
Monitors on page 447 for a complete list of U1-

◆ 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
of U2- monitors and descriptions.
U2- monitors are not reset when the drive is initialized.
instructions on how to reset these monitor values.

◆ 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 450
U3- monitors are not reset when the drive is initialized.
instructions on how to reset these monitor values.

◆ 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 450

◆ U5: PID Monitors

These monitors display various aspects of PID control.
these monitors display PID data.
U5: PID Monitors on page 451

◆ U6: Operation Status Monitors

Control 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 monitors
Refer to Figure 5.35 on page
are located in the ASR block.
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
monitors and descriptions.
for a complete list of U3-
for a complete list of U4-
Refer to PID Block Diagram on page 154
has a complete list of U5-
171 and Figure 5.36 on page
U2: Fault Trace on page 449
Refer to o4-11: U2, U3 Initialization on page 289
monitors and descriptions.
Refer to o4-11: U2, U3 Initialization on page 289
monitors and descriptions.
monitors and descriptions.
172 for details and an illustration showing where monitors
5.11 U: Monitor Parameters
U1: Operation Status
for a complete list
for
for
for details on how
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291