GD350 terminal start | GD350 FAQ
2-wire Control or 3-wire Control:
Define Terminal control mode [P05.11], whether 2-wire control or 3-wire control mode.
Setting of Terminal control mode [P05.11]:
0 (Default): Two-wire control 1, the enabling consistent with the direction. This mode is widely used. The defined FWD/REV terminal command determines the motor rotation direction.
1: Two-wire control 2, the enabling separated from the direction. In this mode, FWD is the enabling terminal. The direction depends on the defined REV state.
2: Three-wire control 1. This mode defines Sin as the enabling terminal, and the running command is generated by FWD, while the direction is controlled by REV. During running, the Sin terminal needs to be closed, and terminal FWD generates a rising edge signal, then the VFD starts to run in the direction set by the state of terminal REV; the VFD needs to be stopped by disconnecting terminal Sin. The direction control is as follows during running:
Sin: Three-wire control; FWD: Forward running; REV: Reverse running
3: Three-wire control 2. This mode defines Sin as the enabling terminal, and the running command is generated by FWD or REV, but the direction is controlled by both FWD and REV. During running, the Sin terminal needs to be closed, and terminal FWD or REV generates a rising edge signal to control the running and direction of the VFD; the VFD needs to be stopped by disconnecting terminal Sin.
Guidance:
2-wire control: S1 is default as forward; S3 is default as fault reset; to assign S2 to reverse, set Function of S2 terminal [P05.02] to 2;
3-wire control: S1 is default as forward; S3 is default as fault reset; to assign S2 to 3-wire control/Sin, set Function of S2 terminal [P05.02] to 3; to assign S4 to reverse, set Function of S4 terminal [P05.04] to 2;
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