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Hbb alarm code in yaskawa V1000 drive

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Cause : Safe Disable Signal Input comes when both Safe Disable Input channels are open. Both Safe Disable Inputs H1 and H2 are open.

• Check signal status at the input terminals H1 and H2.
• Check the Sink/Source Selection for the digital inputs.
• If the Safe Disable function is not utilized, determine if terminals H1-HC, and H2-HC are linked.

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