Yaskawa D1000 Series Power Regenerative Converter - Manual (Page 97)

4.5 Operation with the Drive Connected
YASKAWA ELECTRIC TOEP C710656 07C YASKAWA Power Regenerative Converter - D1000 Instruction Manual 97
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◆ Timing Chart for Turning the Power Supply On and Off
Figure 4.6 is a timing chart for turning the power supply on and off.
Figure 4.5
Figure 4.6 Timing Chart for Power ON and Run Command Sequence
Observe the following precautions when you perform operation with the converter connected to the drive.
• After turning on the power supply to the converter, wait for the Operation Ready signal on the multi-function contact
output to turn on and then input the Run Command for the converter.
• Confirm that the converter is operating (i.e., confirm that During Run 1 is on) and then turn on the Run Command for
the drive.
• To stop the converter, turn off the Run Command to the drive, confirm that the motor has stopped, and then input the
Stop Command.
• Wait for the converter to stop and the During Run 1 multi-function contact output to turn off, then turn off the power
supply.
◆ Interlocks
■ Interlock with the Drive
An interlock is required between the converter and the drive to stop the drive with a fault signal from the converter. It is
also necessary to provide a suitable time to restart the drive if it will be restarted for momentary power losses.
Restarting can be timed with the “During MC on” signal that is output from a control terminal of the converter.
Create a sequence to turn off the output from the drive with an external base block input to the drive or by a similar means
when the terminal that is set for the “During MC on” signal opens.
The drive should be operated only when the converter is operating. The M1-M2 terminals (During Run 1) will confirm
that the converter is operating, and the drive should be operated only when the During Run 1 signal is on. Stop the drive if
the During Run 1 signal turns off.
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
ON
Power Supply Voltage
M5-M6 (Operation Ready)
S1 (Run Command)
M1-M2 (During Run 1)
S2 (Stop Command)
DC Bus Voltage
Drive Run Command
DC Bus Voltage Reference
Motor Speed
ON OFF
ON
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