Function Applications
-424-
● When the AC drive is running, pressing (stop command/fault reset key) on the operating
panel stops the AC drive immediately (the RUN indicator is OFF).
4.1.1.3 Terminal I/O Control
When F0-02 is set to 1, the start and stop of the AC drive are controlled through terminals.
F4-17 defines the terminal I/O control mode. Four terminal I/O control modes are available, including
two-wire mode 1, two-wire mode 2, three-wire mode 1, and three-wire mode 2.
Para. No. Name
Default
Value Range Description
F4-17
Terminal control
mode
0
0: Two-wire mode 1
1: Two-wire mode 2
2: Three-wire mode 1
3: Three-wire mode 2
This parameter defines the mode
in which the AC drive is controlled
by external terminals.
Terminals DI1 to DI8 can be used as the external terminals. The following uses DI1 to DI3 as an example
to describe the control modes using external terminals. That is, set F4-01, F4-03, and F4 -05 to select
the functions for DI1, DI2, and DI3.
Two-wire Mode 1 (F4-17 = 0)
It is the most commonly used two-wire mode. In this mode, DI1 and DI2 determine the forward or
reverse running of the motor. The parameters are set as follows.
Para. No. Name
Setpoint Function Description
F4-17
Terminal control mode
0
Two-wire mode 1
F4-00
DI1 hardware source
1
DI1 of the power supply unit
F4-01
DI1 function
1
Forward RUN (FWD)
F4-02
DI2 hardware source
2
DI2 of the power supply unit
F4-03
DI2 function
2
Reverse RUN (REV)
When SW1 is closed and SW2 is open, the motor rotates in the forward direction. When SW1 is open
and SW2 is closed, the motor rotates in the reverse direction. When SW1 and SW2 are both open or
closed, the motor stops. See the following figure.
Figure 4-1 Wiring and parameter setting for two-wire mode 1
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