5.2 b: Application • 2-Wire sequence: Two inputs (FWD/Stop-REV/Stop). Initializing the drive by setting A1-01 = 2220, presets the terminals S1 and S2 to these functions. This is the default setting of the drive. Refer to Setting 40/41: Forward Run/Reverse Run Command for 2-Wire Sequence on page 94 . • 3-Wire sequence: Inputs S1, S2, S5 (Start-Stop-FWD/REV). Initialize the drive by setting A1-01 = 3330 presets the terminals S1, S2 and S5 to these functions. Refer to Setting 0: 3-Wire Sequence on page 90 . Setting 2:
MEMOBUS/Modbus Communications Using this setting, the Run command can be entered via RS-422/485 serial communications using the MEMOBUS/Modbus protocol and the optional SI-485/J Interface for MEMOBUS/Modbus communication. Refer to Peripheral Devices & Options on page 147 . For details about the MEMOBUS/Modbus protocol, Refer to MEMOBUS/Modbus Communications on page 185 . n b1-03: Stopping Method Selection Select how the drive stops the motor when a Stop command is entered or when the Run command is removed. Setting 0: Ramp to Stop When a Stop command is issued or the Run command is removed, the drive will decelerate the motor to stop.
The deceleration rate is determined by the active deceleration time. The default deceleration time is set to parameter C1-02. DC Injection braking can be applied at the end of the ramp in order to completely stop high inertia loads. Refer to b2: DC Injection Braking on page 76 for details. Run Command Output Frequency DC Injection Braking Figure 5.3 Ramp to Stop Setting 1: Coast to Stop When a Stop command is issued or the Run command is removed, the drive will shut off its output and the motor will coast (uncontrolled deceleration) to stop where the stopping time is determined by the inertia and the friction in the driven system.
Run Command Output Frequency Motor rpm Figure 5.4 Coast to Stop Note: After a stop is initiated, any subsequent Run command that is entered will be ignored for a certain time. Do not attempt to start the motor again until it has come to a complete stop. To start the motor before it has stopped completely, use DC Injection at start ( Refer to b2-03: DC Injection Braking Time at Start on page 76 ). 74 SIEP C710606 33A OYMC AC Drive – J1000 User Manual No. Parameter Name Setting Range Default b1-03 Stopping Method Selection 0, 1 0 ON OFF y Decelerates according to the specified deceleration time Minimum Output Freq.
(E1-09) Decel Time (C1-02, etc.) DC Injection Current (b2-02) D C B raking T im e at S top (b2-04) OFF Minimum Output Freq. (E1-09) Minimum Output Freq. (E1-09) DC Injection Current (b2-02) Decel Time (C1-02, etc.) DC Injection Current (b2-02) D C B raking T im e at S top (b2-04) ON OFF Drive output frequency is shut off