Interlocks - YASKAWA D1000 Series Instruction Manual

◆ 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.
Not Restarting Operation for Momentary Power Loss (Stopping Operation When a Momentary Power Loss Is
Detected)
Connect the "During MC on" signal from the converter to a multi-function contact input terminal on the drive that is
assigned to an external fault.
Use an N.C. input for the external fault input on the drive and set the drive to detect external faults only during operation
to prevent an external fault from being detected when the power supply is turned on.
Restarting the System for Momentary Power Losses
• A1000
Connect the "During MC on" signal from the converter to a multi-function contact input terminal on the drive that is
assigned to a Baseblock Command (N.C.).
• Control Devices Other Than the A1000
Connect the "During MC on" signal from the converter to a multi-function contact input terminal on the drive that is
assigned to External Search Command 2.
(Contact your Yaskawa representative if you are using YASKAWA drive that does not have External Search Command
2.)
Stopping the Converter for Faults in Peripheral Devices
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If an external device fails or a fault occurs, the fault contact output on the converter is activated to stop operation.
To use an external fault, set H1-
When an external fault is input, EF
The in EF is the number of the terminal where the external fault signal was input.
Example: If an external fault signal is input to the S3 terminal, EF3 is displayed.
Select the number to set for H1-
• Use an input contact for a signal from the peripheral device.
• Use detection of an external fault.
• Stop operation (as the operation selection when an external fault is detected).
Table 4.5 shows the relationship between the combination of conditions and the set value of H1-
YASKAWA ELECTRIC TOEP C710656 07A YASKAWA Power Regenerative Converter - D1000 Instruction Manual
(terminal S1 to S8 function selection) to one of the values from
is displayed on the digital operator.
according to the combination of the following three conditions:
4.4 Operation with the Drive Connected
Table 4.5.
4
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