Programming 71
Function: 3-Wire Control
Setting: 0
When one of the digital inputs is programmed for 3-Wire control, that input becomes a Forward/Reverse directional input. Whenever the
input is open, the Drive will be set for forward rotation of the motor shaft. If the input it closed, then the motor shaft will rotate in the
reverse direction whenever a there is a Run input. The S1 and S2 digital inputs will function as a Run and Stop input respectively.
Fig. 43 Terminal Configuration for 3-Wire Control
Fig. 44 3-Wire Control Timing Diagram
35 PID Input (Error) Polarity Change OOOO
60DC Injection Braking OOOO
61Speed Search 1 OXOX
62Speed Search 2 OXOX
63Field Weakening Command (Energy Savings) OOXX
64Speed Search 3 OOOO
65Kinetic Energy Braking Ridethru N.C. OOOO
66Kinetic Energy Braking Ridethru N.O OOOO
67Communication Test Mode OOOO
68High Slip Braking OOXX
69Jog 2 OOOO
6ADrive Enable OOOO
71Speed/Torque Control Selection XXXO
72Zero Servo Command XXXO
77ASR Gain Switch XXXO
78Polarity Reversing Command for External Torque Control XXXO
Table 13 Multi-Function Input Selection (Continued)
Parameter
Setting
Function
Control Method (A1-02)
V/f
V/f with
PG
Open
Loop
Vector
Flux
Vector
Stop
switch
(NC contact)
Operation
switch
(NO contact)
Run command
(run on momentary close)
Stop command
(stop on momentary open)
Forward/reverse command
(multi-function input)
Sequence input common
S3 or S5
50 ms min.
Run command
Forward/reverse
command
Motor speed
Can be either ON or OFF
OFF
(stopped)
OFF (forward)
ON (reverse)
Stop Forward Reverse Stop Forward
Stop command
TIME
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