YASKAWA CR700, Техническое руководство, Страница: 205 / 886

Startup
Procedure
and
Test
Run
3
3.10 Crane Application Setup Procedure
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual 205
S2-01 - Run Cmd Minimum On Time (FWD)
S2-02 - Run Cmd Minimum On Time (REV)
• Entering the Run command when stopped
If the input time for the Run command is shorter than the settings in S2-01 or S2-02 , then the drive will hold the
Run command only for the time set in
S2-01
or
S2-02
.
If the input time for the Run command is longer than the settings in S2-01 or S2-02 , then the drive will maintain
the Run command internally only for as long as the Run command is input.
This is the same for all of the drive control methods.
• Run command Entered during Rump to Stop
The drive will carry out the following operation if a Run command is entered in the same direction as the output
frequency. This is the same for all of the drive control methods.
Conditions for Run
Command
S2-01 = 0, S2-02 = 0 S2-01 ≠ 0, S2-02 ≠ 0
Output Frequency > f α Output Frequency ≤ f α Output Frequency > f α Output Frequency ≤ f α
Drive operation Starts accelerating again. Closes the brake, and briefly stops. (Stops for at least 50 ms)
The drive will operate the following if a Run command is entered in the direction opposite to the output
frequency.
Conditions for Run
Command
Control Method
S2-01 = 0, S2-02 = 0 S2-01 ≠ 0, S2-02 ≠ 0
Output Frequency > f α
*1
Output Frequency ≤ f α
*1
Output Frequency > f α
*1
Output Frequency ≤ f α
*1
Drive operation
Closed Loop Vector
Control
Switches between Forward/
Reverse run without
engaging the brake.
*2
Closes the brake, and briefly stops. (Stops for at least 50 ms)
Other than CLV control Closes the brake, and briefly stops. (Stops for at least 50 ms)
*1 For fα, the drive displays whichever value is larger, 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)].
*2 The drive will switch between FWD/REV without engaging the brake if a Run command is entered in the
opposite direction while decelerating with the output frequency > fα.
■
Run Command Delay Timer (REV/FWD)
If hoisting the load immediately after lowering it in Open Loop Vector or in V/f Control, then this can cause an
excess amount of current to flow when starting to hoist the load. In such cases, having a small delay before
entering the Run command to hoist makes it possible to lower the peak output current of the drive.
Related Parameters
No. Name Adjustment Method
S2-03
*1
Run Cmd Delay Timer (REV/FWD) Usually, set S2-03 = 0.0 s .
*1 This parameter is enabled when A1-02 = 0, 1, or 2 [Control Method Selection = V/f Control, V/f Control with Encoder, or Open Loop
Vector] .