1.17 U: Monitors
116 YASKAWA TOEPYAIGA8002B GA800 Drive Programming
No.
(Hex.)
Name Description MFAO Signal Level
U2-13
(008C)
Operation Status @ Fault
Shows the status of the MFDO terminals at the most recent fault where 1 = (ON) and 0 = (OFF).
For example, U2-13 shows “00000001” during run.
Use U1-12 [Drive Status] to monitor the actual MFDO terminal status.
bit 0 : During Run
bit 1 : During zero-speed
bit 2 : During reverse
bit 3 : During fault reset signal input
bit 4 : During speed agreement
bit 5 : Drive ready
bit 6 : During minor fault detection
bit 7 : During fault detection
No signal output available
U2-14
(008D)
Elapsed Time @ Fault
Shows the cumulative operation time of the drive at the fault that occurred most recently.
Use U4-01 [Cumulative Ope Time] to monitor the actual cumulative operation time.
Unit: 1 h
No signal output available
U2-15
(07E0)
SFS Output @ Fault
Shows the output frequency after soft start at the fault that occurred most recently.
Use U1-16 [SFS Output Frequency] to monitor the actual output frequency after soft start.
Unit: 0.01 Hz
No signal output available
U2-16
(07E1)
q-Axis Current@Fault
Shows the q-axis current of the motor at the fault that occurred most recently.
Use U6-01 [Iq Secondary Current] to monitor the actual q-Axis current of the motor.
Unit: 0.1 %
No signal output available
U2-17
(07E2)
d-Axis Current@Fault
Shows the d-axis current of the motor at the fault that occurred most recently.
Use U6-02 [Id ExcitationCurrent] to monitor the actual d-Axis current of the motor.
Unit: 0.1 %
No signal output available
U2-19
(07E4)
ControlDeviation@Flt
Shows the amount of control axis deviation (Δθ) at the fault that occurred most recently.
Use U6-10 [ContAxisDeviation Δθ] to monitor the actual amount of control axis deviation (Δθ).
Unit: 0.1 °
No signal output available
U2-20
(008E)
Heatsink Temp @Fault
Shows the heatsink temperature at the fault that occurred most recently.
Use U4-08 [Heatsink Temperature] to monitor the actual temperature of the heatsink.
Unit: 1 °C
No signal output available
U2-21
(1166)
Expert
STPo Detect @ Fault
Monitors conditions to detect STPo [Motor Step-Out Detected] faults. The bit for each condition is
displayed as ON or OFF.
bit 0 : Excessive current
bit 1 : Induced voltage deviation
bit 2 : d-axis current deviation
bit 3 : Motor lock at startup
bit 4 : Acceleration stall continue
bit 5 : Acceleration stall repeat
bit 6 : Not used (normal value of 0).
bit 7 : Not used (normal value of 0).
No signal output available
◆ U3: Fault History
No.
(Hex.)
Name Description MFAO Signal Level
U3-01 to U3-04
(0090 - 0093)
(0800 - 0803)
1st to 4th MostRecent Fault
Shows the fault history of the first to fourth most recent faults.
Note:
The drive saves the U3-01 to U3-04 [1st to 4th MostRecent Fault] fault histories to two types of
registers at the same time for the MEMOBUS/Modbus communications.
No signal output available
U3-05 to U3-10
(0804 - 0809)
5th to 10th MostRecent Fault
Shows the fault history of the fifth to tenth most recent faults.
No signal output available
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