5.7 H: Terminal Functions
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual 171
Figure 5.49
Figure 5.49 Frequency Detection 2 Time Chart
Refer to L4-01, L4-02: Speed Agreement Detection Level and Detection Width on page 195 for details on setting the
detection width.
Setting 6: Drive Ready
Output closes whenever the drive is ready to operate the motor.
Refer to b1-08: Run Command Selection while in Programming Mode on page 112 for details on the setting of b1-08.
Setting 7: DC Bus Undervoltage
Output closes whenever the DC bus voltage or control circuit power supply drops below the trip level. The undervoltage
trip level is determined by L2-05. A fault in the DC bus charge circuit will also cause the DC Bus Undervoltage output to
close.
Setting 8: During Baseblock (N.O.)
Output closes to indicate that the drive is in a baseblock state. While Baseblock is executed, output transistors are not
switched and no voltage will be output.
Setting 9: Frequency Reference Source
A digital output programmed for this function shows the frequency reference source that is currently selected.
Setting A: Run Command Source
A digital output programmed for this function shows the Run command source that is currently selected.
Status Description
Open During power up, initialization, fault or in Programming Mode (while b1-08 = 0 or 2).
Closed Drive is ready for operation.
Status Description
Open DC bus voltage is above the level set to L2-05
Closed DC bus voltage has fallen below the trip level set to L2-05.
Status Description
Open Drive is not in a baseblock state.
Closed Baseblock is being executed.
Status Description
Open Frequency reference is provided from External Reference 1 (b1-01) or 2 (b1-15)
Closed Frequency reference is being sourced from the digital operator.
Status Description
Open Run command is provided from External Reference 1 (b1-02) or 2 (b1-16)
Closed Run command is being sourced from the digital operator.
Output
frequency
L4-02
Frequency
Detection 2
ON
OFF
L4-02
L4-01
L4-01
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