Chapter 4: AC Drive Parameters
Page 4–65
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Type Hex Addr Dec Addr
P3.02 2/3 Wire Operation Mode
R/W 0302 40771
Range/Units (Format: 16-bit binary) Default
0: 2-wire mode 1 (Fwd, Rev)
1: 2-wire mode 2 (Run, Direction)
2: 3-wire mode
0
Sets the type of control when Remote source (P3.00) or Local source (P3.01) control is set to
External Terminal operation method. There are three different control modes, as described below.
When P3.02 is set for three-wire operation control (P3.02=2), the terminal DI1 becomes the STOP
contact. P3.02 cannot be changed during operation. At any transition of a Run, Stop, FWD, or REV
command the drive will re-evaluate the state of the control terminals and apply or stop motion as
commanded. The FWD and REV terminals are only configurable through the P3.02 parameter.
P3.02 External Terminal Control Circuit Diagram
Setting 0
2-wire mode 1
FWD/STOP
REV/STOP
P
REV/STOP
FWD
DCM
(open = STOP)
(closed = FWD)
REV(open = STOP)
(closed = REV)
Setting 1
2-wire mode 2
RUN/STOP
REV/FWD
P
FWD/REV
FWD
DCM
(open = STOP)
(closed = RUN)
REV(open = FWD)
(closed = REV)
Setting 2
3-wire mode
REV/FWD
RUNSTOP
FWD
DCM
(closed = RUN)
REV(open = FWD)
(closed = REV)
DI1(open = STOP)
Setting 0: Two-wire control mode 1 (Fwd, Rev)
•
FWD Terminal: Open = stop� Maintained close = Run forward�
•
REV Terminal: Open = stop� Maintained close = Run reverse�
•
If both terminals are open or both closed, the drive will not run� After an External Fault and
subsequent Reset the drive will not run until is sees a high or low transistion from either the FWD
or REV terminal�
FWD Input Terminal open closed open closed
REV Input Terminal open open closed closed
Drive Action Stop Forward Reverse Stop
Setting 1: Two-wire control mode 2 (Run, Direction)
•
FWD Terminal: Open = stop� Maintained close = Run� After an External Fault and subsequent
Reset, the Run command will have to be cycled off then back on to run�
•
REV Terminal: Open = FWD� Maintained close = REV�
Setting 2: Three-wire control mode
•
FWD Terminal: The Run command needs a momentary high in order for the drive to run� If a
Run command is high when drive is commanded to stop, the stop will take precedence� Once the
Stop command is realeased the drive will start if the Run command is active�
•
DI1 Terminal: The Stop command is maintained closed in order to allow drive to run� A
momentary opening of the Stop command will cause the motor to stop if there is no Run
command present� If there is a Run command present at the the time the Stop command opens,
the drive will stop but will will restart if the Stop contact is closed while the Run command is high�
DI1 is automatically assigned as the STOP contact and cannot be altered while P3�01=2�
•
REV Terminal: The choice is a maintained selection: Open = FWD� Closed = REV�
•
After an External Fault and subsequent Reset the drive will not run until is sees a high or low
transistion from either the Run, Stop, or FWD/REV command�
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