Caution – Yaskawa Varispeed-686SS5 CIMR-SSA User Manual
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NOTES FOR SAFE OPERATION
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CAUTION
(Ref. page)
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All the constants of the inverter have been preset at the factory. Do not
change the settings unnecessarily.
The inverter may be damaged. For supply voltage, follow Par. 4.2.
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Be sure to set the motor constants in accordance with the values listed on
the motor nameplate values.
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Failure to observe this caution may cause the torque to be insufficient, which
may result in the following motor malfunctions:
• The motor is pulled in the direction of the load.
• The motor rotates in reverse.
• The motor does not rotate.
• The motor suddenly accelerates.
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Besuretosetthe motorconstantsbeforethe initialoperation andafter
replacement of the motor. Reconfirm the motor constants after they
have been set.
Failure to observe this caution may result in motor malfunctions such as
sudden acceleration.
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In the following cases when under flux vector control, be sure to adjust
the PG zero-pulse as described in 4.3 (3) (e) PG Zero-pulse Adjustment:
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. .
• Before initial operation.
• After replacing the motor.
• After replacing the PG.
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Verify that digital operator STOP LED is ON before checking motor speed
detection.
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Verify that nothing is caught on the shaft or coupling.
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If the constant b1-06 is set to 1 and the run command is ON, the motor will
start immediately if the following operations are done. Confirm the safe-
ty if such operation is required.
• The operation mode is switched from LOCAL to REMOTE.
• The power supply is turned ON.
Failure to observe this caution may result in personal injury.
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Confirm safety.
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• Is the motor disconnected from the machine?
• Is the lock key disconnected from the machine?
• Are there any persons or objects near the motor shaft?
• Has the motor come to a complete stop?