U: Monitor Parameters - YASKAWA L1000A Technical Manual

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 -
H4-01 and H4-04. Refer to H4-01, H4-04: Terminal FM, AM Monitor Selection on page 200
functions to an analog output.
◆ U1: Operation Status Monitors
Status monitors display drive status data such as output speed and output current. Refer to
on page 372 for a complete list of U1-
◆ 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
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 375
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 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 376
◆ U6: Control 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 motor encoder
• Pulse data for Position Lock control
• Speed Loop and Inertia Compensation control monitors
Refer to Figure 5.10 on page
loop block.
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
monitors and descriptions.
for a complete list of U3-
for a complete list of U4-
161 for details and an illustration showing where monitors are located in the speed control
U2: Fault Trace on page 374
Refer to o4-11: U2, U3 Initialization on page 229
monitors and descriptions.
Refer to o4-11: U2, U3 Initialization on page 229
monitors and descriptions.
5.12 U: Monitor Parameters
for details on assigning
U1: Operation Status Monitors
for a complete list
for
for
) to
5
247