Yaskawa R1000 Series Power Regenerative Unit - Manual (Page 77)

4.5 Operation with the Drive Connected
YASKAWA ELECTRIC TOEP C710656 08B YASKAWA Power Regenerative Unit - R1000 Instruction Manual 77
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4.5 Operation with the Drive Connected
◆ Drive Connection Example
Refer to Standard Connection Diagram on page 38 for details.
◆ Timing Chart for Turning the Power Supply On and Off
Figure 4.3 is a timing chart for turning the power supply on and off.
Figure 4.2
Figure 4.3 Timing Chart for Power ON and Run Command Sequence
Observe the following precautions when you perform operation with the regenerative unit connected to the drive.
• After turning on the power supply to the regenerative unit, wait for the Operation Ready signal on the multi-function
contact output to turn on and then input the Run Command for the regenerative unit.
• Confirm that the regenerative unit is operating (i.e., confirm that During Run 1 is on) and then turn on the Run
Command for the drive.
• To stop the regenerative unit, turn off the Run Command to the drive, confirm that the motor has stopped, and then
input the Stop Command.
• Wait for the regenerative unit to stop and the During Run 1 multi-function contact output to turn off, then turn off the
power supply.
◆ Operation Command Selection
The automatic operation command and forced operation command are available in the regenerative unit.
Select one of the operation commands according to the application.
Note: Select forced operation command when the motor vibrates during automatic operation.
■ Automatic Operation Command
When the multifunction input terminal S2 (H1-02 = 3D (default setting)) is “closed”, the regenerative unit detects any
increase/decrease of the bus voltage and performs an automatic run/stop.
The regenerative unit stops after the minimum operation time set to C7-16 has passed when the bus voltage is less than
the acceptable voltage set to the operation start/stop level.
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON OFF
Power supply side voltage
M5-M6 (Operation Ready)
S1 (Forced Operation Command)
S2 (Automatic Operation Command)
M1-M2 (During Run 1)
Drive Run Command
Motor speed
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