User Manual EM303B General Purpose Inverter same time. A regular AC induction motor can be turned into an AC variable speed motor or AC torque motor in this drive mode. It is a genuine sensorless vector control. Remarks: This mode is applicable to torque / speed control. 1. Before running in vector control mode, inverter needs to autotune motor parameters for obtaining the correct motor parameters. 2. In vector control mode, the inverter only applies to one motor. Motor and inverter shall be the same in terms of capacity. On special occasions, the inverter capacity shall be up-rated one grade. Otherwise, it may lower control performance or the system cannot function normally.
3 ． The sections with ▲ mark are switchable control modes. When running in this mode, V/F open loop control status can be switched to meet different drive needs through multi-function input terminals X1~X7. See 7.3 for programming mode of multi-function input terminals. For example, set F2 - 02=20, and when terminal X3=ON, the drive mode is switched to V/F mode, and when X3=OFF, it returns to the previous drive mode. F0-03=0 Input control mode is speed input, the input is frequency. ▲F0-03=1 Input control mode is torque input. The input is percentage of motor rated torque current. It is active only when the control mode is SVC1, i.e. F0-02=3.
In SVC1 mode, squirrel cage induction motor can achieve torque control to replace the AC induction torque motor directly. The section with ▲ mark is switchable reference input control mode. When running in this mode, terminal can be switched to the status of F0-03=0. When setting one programmable terminal (in F2) =24, the reference input control mode is switched to speed input mode when selecting this terminal. It returns previous input mode when the terminal is off. For example, set F2-02=24, and when terminal X3 is on, the reference input control mode is switched to speed input mode, it will return previous input mode when terminal X3 is off. 82 No.
Function Range Unit Default Type Reference Input Control Mode 0:Speed input 1: Torque input (F0-02=3) 0 〇 F0-03 No. Function Range Unit Default Type Start/Stop Control Options 0:Keypad 1: Terminal 2: RS485 0 〇 F0-04 Terminal Start/Stop Control Options 0: RUN-Run, F/R-Forward/Reverse 1: RUN-Forward, F/R- Reverse 2: RUN-NO forward, Xi-NC stop, F/R-NO reverse 3: RUN-NO run, Xi-NC stop, F/R- Forward/Reverse 0 〇 F0-05