YASKAWA T1000V Technical Manual page 161

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
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.
REMOTE Run Selection on page 111
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.
Frequency Reference 1 to 8 and Jog Frequency Reference on page 143
Setting 6: Jog Frequency Reference Selection
Used to select the Jog frequency set in parameter d1-17 as active frequency reference.
Frequency Reference 1 to 8 and Jog Frequency Reference on page 143
Setting 7: Accel/Decel Time Selection 1
Used to switch between accel/decel times 1 and 2.
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,
ends and a Run command is active, the drive performs Speed Search to get the motor running again
Search on page 115 for details).
Operation
Normal operation
Baseblock (Interrupt output)
Figure 5.38
Setting A: Accel/Decel Ramp Hold
When the digital input programmed for the Accel/Decel Ramp Hold function closes, the drive will lock ("hold") the
output frequency. All acceleration or deceleration will cease, and the drive will hold the current speed. Acceleration or
deceleration will resume once the input is opened again.
Setting B: Drive Overheat Alarm (oH2)
Triggers an oH2 alarm when the contact closes. Because this is an alarm, drive operation is not affected.
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
if this feature is required by the application.
Refer to C1-01 to C1-08: Accel, Decel Times 1 to 4 on page 133
Setting 8 (N.O.)
OFF ON
Run command
Baseblock input
Frequency
reference
Output frequency
Figure 5.38 Baseblock Operation During Run
Description
for details.
for details.
Refer to Alarm Detection on page
Inputs
Open
Closed
Baseblock
ON
release
Begin Speed Search from the
previous frequency reference
Output off, motor coasts
5.7 H: Terminal Functions
Refer to b1-07: LOCAL/
Refer to d1-01 to d1-08, d1-17:
Refer to d1-01 to d1-08, d1-17:
256. When baseblock
(Refer to b3: Speed
Setting 9 (N.C.)
Closed
Open
for
5
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