5.7 H: Terminal Functions
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual 211
Setting 6: Drive ready (READY)
Output closes whenever the drive is ready to operate the motor. The terminal will not close under the conditions listed
below, and any Up/Down commands will be disregarded.
• When the power is shut off
• During a fault
• When the internal power supply of the drive has malfunctioned
• When a parameter setting error makes it impossible to run
• Although stopped, an overvoltage or undervoltage situation occurs
• While editing a parameter in the Programming Mode (when b1-08 = 0)
• When parameter L8-88 = 0 and at least one Safe Disable input is open
Setting 7: DC bus undervoltage
Output closes whenever the DC bus voltage or control circuit power supply drops below the trip level set in L2-05. A
fault in the DC bus circuit will also cause the terminal to set for “DC bus undervoltage” to close.
Setting 8: During baseblock (N.O.)
Output closes to indicate that the drive is in a baseblock state. While in baseblock, output transistors do not switch and no
main circuit voltage is output.
Setting 9: Speed reference source
Displays the currently selected speed reference source.
Setting A: Up/Down command source
Displays the currently selected Up/Down command source.
Setting B, 18: Torque detection 1, Torque detection 2
These digital output functions to signal an overtorque or undertorque situation to an external device.
Set up the torque detection levels and select the output function from the table below. Refer to L6: Torque Detection on
page 232 for details.
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 Speed reference is provided from External reference 1 (b1-01).
Closed Speed reference is being sourced from the digital operator.
Status Description
Open Up/Down command is provided from External reference 1 (b1-02).
Closed Up/Down command is being sourced from the digital operator.
Setting Status Description
B Closed
Torque detection 1 :
Output current/torque exceeds (overtorque detection) or is below (undertorque detection) the torque value set in parameter L6-02 for longer than
the time specified in parameter L6-03.
18 Closed
Torque detection 2 :
Output current/torque exceeds (overtorque detection) or is below (undertorque detection) the torque value set in parameter L6-05 for longer than
the time specified in parameter L6-06.
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