YASKAWA A1000 HHP Programming Manual

Contents

Two inputs (FWD/Stop-REV/Stop). Set A1-03 to 2220 to initialize the drive and preset terminals S1 and S2 to thesefunctions. This is the default setting of the drive. Refer to Setting 40, 41: Forward Run, Reverse Run Command for 2-Wire Sequence on page 102.• 2-Wire sequence 2:Two inputs (Start/Stop-FWD/REV). Refer to Setting 42, 43: Run and Direction Command for 2-Wire Sequence 2 onpage 103.• 3-Wire sequence:Three inputs (Start-Stop-FWD/REV). Set A1-03 to 3330 to initialize the drive and preset terminals S1, S2, and S5 to thesefunctions. Refer to Setting 0: 3-Wire Sequence on page 96.Setting 2: MEMOBUS/Modbus CommunicationsThis setting requires entering the frequency reference via the RS-485/422 serial communications port (control terminals R+,R-, S+, S-).Setting 3: Option CardThis setting requires entering the Run command via the communication option board by plugging a communication optionboard into the CN5-A port on the control PCB. Refer to the option board manual for instructions on integrating the drive intothe communication system.Note: If b1-02 is set to 3, but an option board is not installed in CN5-A, an oPE05 operator programming error will be displayed on the digitaloperator and the drive will not run.n b1-03: Stopping Method SelectionSelects how the drive stops the motor when the Run command is removed or when a Stop command is entered.No. Parameter Name Setting Range Defaultb1-03 Stopping Method Selection 0 to 3 0Setting 0: Ramp to StopWhen the Run command is removed, the drive will decelerate the motor to stop. The deceleration rate is determined by theactive deceleration time. The default deceleration time is set to parameter C1-02.When the output frequency falls below the level set in parameter b2-01, the drive will start DC injection, Zero Speed Control,or Short Circuit Braking, depending on the selected control mode. Refer to b2-01: DC Injection Braking Start Frequencyon page 25 for details.Setting 1: Coast to StopWhen the Run command is removed, the drive will shut off its output and the motor will coast (uncontrolled deceleration) tostop. The stopping time is determined by the inertia and the friction in the driven system.Drive output is shut offRuncommandOutputfrequencyMotor speedON OFFFigure 1.3 Coast to StopNote: After a stop is initiated, any subsequent Run command entered will be ignored until the minimum baseblock time (L2-03) has expired. Donot enter Run command until it has come to a complete stop. Use DC Injection at Start (Refer to b2-03: DC Injection Braking Time atStart on page 26) or Speed Search (Refer to b3: Speed Search on page 27) to restart the motor before it has completely stopped.Setting 2: DC Injection Braking to StopWhen the Run command is removed, the drive will enter baseblock (turn off its output) for the minimum baseblock time(L2-03). When the minimum baseblock time has expired, the drive will inject the amount DC current set in parameter b2-02into the motor windings to brake the motor. The stopping time in DC Injection Braking to Stop is significantly faster comparedto Coast to Stop.Note: This function is not available in the control modes for PM motors (A1-02 = 5, 6, 7).Note: PM motor control modes are not available in A1000 HHP drive models.1.2 b: Application20 YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual