12.7 H: TERMINALS
700 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual
• Cancel the Run command
• Cancel the fast stop command
Note:
• To use the N.O. switch to input the fast stop command, set 34 [Fast Stop NO].
• Refer to “C1-09 Fast Stop Time on page 587” for more information.
NOTICE: Fast deceleration can trigger an overvoltage fault. To prevent and uncontrolled motor and to make sure that the motor
stops quickly and safely, set an applicable Fast Stop time in C1-09 [Fast Stop Time]. When there is a fault, the drive output will
turn off and the motor will coast to stop.
Figure 12.79 shows an example of how fast stop operates.
Figure 12.79 Fast Stop Time Chart
■ 3E: SCBraking NO
Setting Function Description
3E SCBraking NO
Sets operation of Short Circuit Braking (N.O.).
If a three-phase PM motor short circuits, the drive will generate braking torque in the spinning motor. This will
stop motor rotation and also prevent external forces from spinning the motor.
Note:
• When A1-02 = 8 [Control Method = EZ Vector], this function is available if you use a PM motor.
• Refer to “b2: DC INJ / SHORT CKT BRAKE” for more information.
ON : Short Circuit Braking is enabled.
OFF : Normal operation
■ 3F: SCBraking NC
Setting Function Description
3F SCBraking NC
Sets operation of Short Circuit Braking (N.C.).
If a three-phase PM motor short circuits, the drive will generate braking torque in the spinning motor. This will
stop motor rotation and also prevent external forces from spinning the motor.
Note:
• When A1-02 = 8 [Control Method = EZ Vector], this function is available if you use a PM motor.
• Refer to “b2: DC INJ / SHORT CKT BRAKE” for more information.
ON : Normal operation
OFF : Short Circuit Braking is enabled.
■ 40: KEB Thru1 NC
Setting Function Description
40 KEB Thru1 NC
Sets operation of the KEB1 function through the KEB Ride-Thru 1 (N.C.).
ON : Normal operation
OFF : Deceleration during momentary power loss
When you enable KEB Ride-Thru 1, set L2-29 [KEB Method]. The drive operates with the selected KEB method.
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