Setting
Function
Page
AF
Emergency Override Forward Run
Setting
Function
Page
B0
Emergency Override Reverse Run
Setting 0: 3-Wire Sequence
The digital input programmed for 3-Wire control becomes the forward/reverse directional input, S1 becomes the Run command
input, and S2 becomes the Stop command input.
The drive starts the motor when the input S1 set for the Run command closes for longer than 2 ms. The drive stops the operation
when the Stop input S2 is released. When the digital input programmed for a forward/reverse operation is open, the drive is
set for forward operation. When the digital input is closed, the drive is set for reverse operation.
Note:
Input the Run and Stop commands via S1 and S2 when selecting a 3-Wire sequence.
S1
S2
S5
SN
Run Command (Runs when Closed)
DRIVE
Stop Switch
(N.C.)
Run Switch
(N.O.)
Stop Command (Stops when Open)
FWD/REV (Multi-Function Input)
(H1-05 = 0)
Standard Digital Input Common
Figure 5.36 3-Wire Sequence Wiring Diagram
2 ms min.
Run command
Can be
ON or OFF
2 ms min.
ON (reverse)
Forward
p
o
t
S
e
s
r
e
v
e
R
p
o
t
S
Can be either ON or OFF
OFF (forward)
Forward
Motor speed
Forward/reverse
command
Stop command
Figure 5.37 3-Wire Sequence
Note:
1.
The Run command must be closed for more than 2 ms.
2.
If the Run command is active at power up and b1-17 = 0 (Run command at power up not accepted), the Run LED will flash to indicate
that protective functions are operating. If required by the application, set b1-17 to 1 to automatically issue the Run command upon drive
power up.
WARNING! Sudden Movement Hazard. Ensure start/stop and safety circuits are wired properly and in the correct state before applying
power to the drive. Failure to comply could result in death or serious injury from moving equipment.
WARNING! Sudden Movement Hazard. The drive may start unexpectedly in reverse direction after power up if it is wired for 3-Wire sequence
but set up for 2-Wire sequence (default). Make sure b1-17 is set to “0” (drive does not accept a Run command active at power up). When
initializing the drive use 3-Wire initialization. Failure to comply could result in death or serious injury from moving equipment.
Setting 1: LOCAL/REMOTE Selection
This setting allows the input terminal to determine if the drive will run in LOCAL mode or REMOTE mode.
Status
Description
Closed
LOCAL: Frequency reference and Run command are input from the digital operator.
Open
REMOTE: Frequency reference and Run command are input from the selected external reference. If a digital input set to H1-
oo
= 2
is active, they will be read from external reference source 2 (b1-15 and b1-16). In all other cases they will be read from external reference
source 1 (b1-01 and b1-02).
Note:
1.
The LO/RE key on the digital operator is disabled when one of the multi-function input terminals is set to for LOCAL/REMOTE.
2.
When the drive is set to LOCAL, the LO/RE LED will light.
3.
The default setting of the drive does not allow switching between LOCAL and REMOTE during run. To allow the drive to switch
between LOCAL and REMOTE during run,
Refer to b1-07: LOCAL/REMOTE Run Selection on page 151
.
5.7 H: Terminal Functions
206
YASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual
