Function Applications
-427-
Figure 4-7 Timing diagram of three-wire mode 1
Three-wire Mode 2 (F4-17 = 3)
In this mode, DI3 is assigned with the three-wire operation control function, DI1 is assigned with the
operation command function, and DI2 is assigned with the running direction function. The start/stop
button is connected to DI3, running enabling is connected to DI1, and the forward/reverse RUN button
is connected to DI2. The parameters are set as follows.
Para. No. Name
Setpoint Function Description
F4-17
Terminal control mode
0
Three-wire mode 2
F4-00
DI1 hardware source
1
DI1 of the power supply unit
F4-01
DI1 function
1
Operation command
F4-02
DI2 hardware source
2
DI2 of the power supply unit
F4-03
DI2 function
2
Running direction
F4-04
DI3 hardware source
3
DI3 of the power supply unit
F4-05
DI3 function
3
Three-wire operation control
With SW3 closed, pressing SW1 makes the drive rotates in the forward direction if SW2 is open, and in
the reverse direction if SW2 is closed. The motor stops immediately when SW3 opens. SW3 must
remain closed during normal start and running. A signal from SW1 takes effect once SW1 is closed.
Figure 4-8 Wiring and parameter setting for three-wire mode 2
Figure 4-9 Timing diagram of three-wire mode 2
4.1.1.4 Communication Control
When F0-02 is set to 2, the operation commands such as start and stop of the AC drive are issued
through communication.
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