YASKAWA A1000 Series Technical Manual page 228

5.7 H: Terminal Functions
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.
Status
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.
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.
Status
Open Drive is not in a baseblock state.
Closed Baseblock is being executed.
Setting 9: Frequency reference source
A digital output programmed for this function shows the frequency reference source that is currently selected.
Status
Open Frequency reference is provided from External reference 1 (b1-01) or External reference 2 (b1-15)
Closed Frequency reference is being sourced from the digital operator.
Setting A: Run command source
A digital output programmed for this function shows the Run command source that is currently selected.
Status
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.
Setting B, 17, 18, 19: Torque detection 1 (N.O., N.C.), Torque detection 2 (N.O., N.C.)
These digital output functions can be used 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.
page 264 for details.
Setting Status
B Closed
17 Open
18 Closed
19 Open
Setting C: Frequency reference loss
An output set for this function will be closed if frequency reference loss is detected.
Reference Loss Detection Selection on page 262
Setting D: Braking resistor fault
An output programmed for this function will close when the dynamic braking resistor (DB) overheats or the braking
transistor is in a fault condition.
Setting E: Fault
The digital output will close whenever the drive experiences a fault (this excludes faults CPF00 and CPF01).
228
Torque detection 1 (N.O.):
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.
Torque detection 1 (N.C.):
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.
Torque detection 2 (N.O.):
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.
Torque detection 2 (N.C.):
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.
for details.
Description
Description
Description
Description
Description
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Refer to L6: Torque Detection on
Refer to L4-05: Frequency