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 5.15 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)
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 75
if this feature is required by the application.
Setting 2: Serial Communication Reference Selection
This function can be used to switch the Run command and frequency reference source from the current selection (LOCAL
or b1-01/02) to Serial Communication.
Status
Description
Open
LOCAL or the source defined by parameters b1-01/02
Closed
Run command and frequency reference are set by Serial Communications via MEMOBUS/Modbus
Note:
The default setting of the drive is not to allow switching reference sources during run.
Refer to b1-07: LOCAL/REMOTE Run
Selection on page 75
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 d1-08, d1-17:
Frequency Reference 1 to 8 and Jog Reference on page 82
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 d1-08, d1-17:
Frequency Reference 1 to 8 and Jog Reference on page 82
for details.
Setting 7: Accel/Decel Time Selection 1
Used to switch between accel/decel times 1 and 2.
Refer to C1-01 to C1-04: Accel/Decel Times 1 and 2 on page 77
for
details.
Setting 8/9: External Baseblock (N.O.) and External Baseblock (N.C.)
Setting 8 or 9 assign the Baseblock command to digital input terminals. When the drive receives a Baseblock command,
the output transistor stop switching and the motor coasts to stop. During this time, the alarm “bb” will flash on the LED
operator to indicate baseblock. For more information on alarms,
Refer to Alarm Detection on page 129
. When baseblock
ends and a Run command is active, the drive performs Speed Search to get the motor running again.
Operation
Inputs
Setting 8 (N.O.)
Setting 9 (N.C.)
Normal operation
Open
Closed
5.6 H: Terminal Functions
SIEP C710606 33A OYMC AC Drive – J1000 User Manual
91
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Parameter Details
