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5.11 U: Monitor Parameters
Monitor parameters let the user view various aspects of drive performance as it is shown on the operator display.
Some monitors can be output from terminal AM by assigning the specific monitor parameter number to H4-01.
H4-01: Multi-Function Analog Terminal AM Monitor Selection on page 210
for details on assigning functions to the analog
output.
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U1: Operation Status Monitors
Status monitors display drive status like output frequency, current etc. Refer to U1: Operation Status Monitors on page
for a complete list of U1-
oo
monitors and descriptions.
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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
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 252
to initialize the fault trace.
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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
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 252
to initialize the fault trace.
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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
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monitors and descriptions.
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U5: PID Monitors
These monitors display various aspects of PID control.
Refer to PID Block Diagram on page 138
each monitor is located in the PID control block.
Refer to U5: PID Monitors on page
for a complete list of U5-
oo
monitors and descriptions.
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U6: Control Monitors
Control monitors show:
• Reference data for the output voltage and vector control.
• ASR monitors.
Refer to C5: Automatic Speed Regulator (ASR) on page 154
for details and an illustration that shows where
in the ASR block the monitors are located.
• The offset value added to the frequency reference by the Frequency Offset function.
Refer to Setting 44/45/46: Offset
Frequency 1/2/3 Addition on page 192
• The bias value added to the frequency reference by the Up/Down 2 function.
Refer to Setting 75/76: Up/Down 2 on page
Refer to U6: Control Monitors on page
oo
monitors and descriptions.
Note:
Fix monitors U6-80 to U6-99 for communication options. Monitor content will vary based on the communication option card connected to
the drive. Refer to the option manual for more information.
5.11 U: Monitor Parameters
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YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual