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5.7 H: Terminal Functions
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
267
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Figure 5.56
Figure 5.56 3-Wire Sequence Wiring Diagram
Figure 5.57
Figure 5.57 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 have the Run command issued
automatically as soon as the drive is powered up.
WARNING!
Sudden Movement Hazard. Ensure start/stop and safety circuits are wired properly and in the correct state before
energizing the drive. Failure to comply could result in death or serious injury from moving equipment.
WARNING!
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.
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 allow the drive to switch
between LOCAL and REMOTE during run,
Refer to b1-07: LOCAL/REMOTE Run Selection on page 188
Setting 2: External reference 1/2 selection
This function can be used to switch the Run command and frequency reference source between External reference 1 and
2 if the drive is in the REMOTE mode.
Note:
With default settings the drive is not to allow switching between External reference 1 and 2 during run.
REMOTE Run Selection on page 188
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
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 external reference that has been selected in accordance with settings of b1-01 and b1-02 or
b1-15 and b1-16.
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)
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
2 ms min.
Run command
Can be either ON or OFF
2 ms min.
ON (reverse)
Stop
Reverse
Stop
Forward
Can be either ON or OFF
OFF (forward)
Forward
Motor speed
Forward/reverse
command
Stop command
SIEP_C710636_02B_1_0.book 267 ページ 2015年11月25日 水曜日 午後4時56分