S1
S2
S5
SC
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)
Sequence Input Common
Figure 5.43 3-Wire Sequence Wiring Diagram
50 ms min.
Run command
OFF (stopped)
Can be either ON or OFF
OFF (forward)
Motor speed
Forward/reverse
command
Stop command
Stop
Reverse
Stop
Foward
TIME
Forward
ON (reverse)
Figure 5.44 3-Wire Sequence
Note: 1.
The Run and Stop command must be open/closed for a short moment only to start and stop the drive.
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 have the Run command issued automatically
as soon as the drive is powered up.
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). When using 3-Wire sequence first set the drive properly (H1-
= 0) and then
connect the control wires. Make sure b1-17 is set to “0” (drive does not accept 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. (b1–01/b1–02) If no input is set
to H1-
= 2 the settings in parameters b1-01/02 are valid. If a digital input set to H1-
= 2, the source selected by this input
will be valid.
Note: 1.
If one of the multi-function input terminals is set to for LOCAL/REMOTE, then the LO/RE key on the operator will be disabled.
2.
When the drive is set to LOCAL, the LO/RE LED will light.
3.
The default setting of the drive is not to allow switching between LOCAL and REMOTE during run. to
Refer to b1-07: LOCAL/
REMOTE Run Selection on page 107
if this feature is required by the application.
Setting 2: External Reference 1/2 Selection
The external reference 1/external reference 2 selection function allows the user to switch between the frequency reference
and Run command source between external reference 1 and 2.
Status
Description
Open
External reference 1 is used (defined by parameters b1-01 and b1-02)
Closed
External reference 2 is used (defined by parameters b1-15 and b1-16)
Note:
The default setting of the drive is not to allow switching between external reference 1 and 2 during run.
Refer to b1-07: LOCAL/REMOTE
Run Selection on page 107
if this feature is required by the application.
Setting 3 to 5: Multi-Step Speed Reference 1 to 3
Used to switch Multi-Step Speed frequency references d1-01 to d1-08 by digital inputs.
Refer to d1-01 to d1-17: Frequency
Reference 1 to 16 and Jog Reference on page 135
for details.
Setting 6: Jog Frequency Reference Selection
Used to select the Jog frequency set in parameter d1-17 as active frequency reference.
Refer to d1-01 to d1-17: Frequency
Reference 1 to 16 and Jog Reference on page 135
for details.
Setting 7: Accel/Decel Time Selection 1
Used to switch between accel/decel times 1 and 2.
Refer to C1-01 to C1-08: Accel/Decel Times 1 to 4 on page 125
for
details.
5.7 H: Terminal Functions
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
161
5
Parameter Details
7/16/2008-13:23