Startup Procedure and Test Run
3
3.10 Crane Application Setup Procedure
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual 203
When Slight Changes Occur in the Speed Reference Input
S1-01 - Brake Release Frequency(FWD)
S1-02 - Brake Release Frequency(REV)
S1-03 - Brake Delay Frequency
S1-04 - Brake Delay Time
S1-12 - Brake Hold Frequency (FWD)
S1-13 - Brake Hold Frequency (REV)
S1-14 - Slip Prevention Frequency
S1-15 - Slip Prevention Time
b2-01 - DC Injection/Zero SpeedThreshold
E1-09 - Minimum Output Frequency
*1 Until the Run command is shut OFF, the drive will continue operation using the speed reference from S1-01 [Brake Release
Frequency(FWD)] and S1-02 [Brake Release Frequency(REV)], or S1-12 [Brake Hold Frequency (FWD)] and S1-13 [Brake Hold
Frequency (REV)] whichever value is larger.
Note:
• When the speed reference input from terminal A1 is negative, the drive will operate in reverse.
• If the speed reference input from terminal A1 is lower than b2-01 [DC Injection/Zero SpeedThreshold] and E1-09 [Minimum Output
Frequency] for more than 100 ms, then the drive will determine that the Run command has been switched OFF.
Description of Operation
1. With terminal S1 switched ON, if a signal is input to terminal A1 with a level (absolute value) greater than
b2-01 and E1-09, then the drive will determine that a Run command has been entered, and begin the sequence
to start the motor. A positive value from terminal A1 will be used as a Forward run command, and a negative
value will be used as a Reverse run command. Refer to
Sequence at Startup on page 200 for more information
about the start sequence.
Note:
Be sure that terminal S2 always remains OFF. The motor rotates in reverse when terminal S2turns ON.
2. If a signal is input to terminal A1 with a level (absolute value) lower than b2-01 and E1-09 for more than 100
ms, then the drive will determine that a Stop command has been entered, and begin the sequence to stop the
motor. Refer to
Stop Sequence on page 200 for more information about the stop sequence.
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