Yaskawa L1000E AC Drive Technical Manual for CIMR-LE Models for Elevator Applications - Manual (Page 265)

5.12 U: Monitor Parameters
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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 terminals FM and AM by assigning the specific monitor parameter number (U†-††) to
H4-01 and H4-04.
Refer to H4-01, H4-04: Terminal FM, AM Monitor Selection on page 210 for details on assigning
functions to an analog output.
◆ 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 404 for a complete list of U1-†† monitors and descriptions.
◆ 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 Refer to U2: Fault Trace on page 406 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 246 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
Refer to U3: Fault History on page 407 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 246 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 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 407 for a complete list of U4-†† monitors and descriptions.