YASKAWA Lift Inverter L1000V, Technical Manual, Page: 161 / 282

5.12 U: Monitor Parameters
YASKAWA EUROPE SIEP YASKAWA AC Drive L1000V Technical Manual 161
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5.12 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 terminal AM by assigning the specific monitor parameter number (U -
) to H4-01.
Refer to H4-01: Terminal AM Monitor Selection on page 134 for details on assigning functions to an analog output.
u
U1: Operation Status Monitors
Status monitors display drive status data such as output speed and output current. Refer to U1: Operation Status
Monitors on page 243 for a complete list of U1- 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 finding out why a fault occurred. Refer to U2: Fault Trace on page 244 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 154 for
instructions on how to reset these monitor values.
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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 245 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 154 for
instructions on how to reset these monitor values.
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U4: Maintenance Monitors
Maintenance monitors show:
• Runtime data of the drive and cooling fans and number of Up/Down commands issued
• Maintenance data and replacement information for various drive components
• kWh data
• Highest peak current that has occurred and output speed at the time the peak current occurred
• Motor overload status information
• Detailed information about the present Up/Down command and speed reference source selection
Refer to U4: Maintenance Monitors on page 245 for a complete list of U4- monitors and descriptions.
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U6: Control Monitors
Control monitors show:
• Reference data for the output voltage and vector control
• Speed Loop and Inertia Compensation control monitors
Refer to Figure 5.7 on page 114 for details and an illustration showing where monitors are located in the speed control
loop block.