YASKAWA A1000 HHP Programming Manual page 97

Setting 2: External Reference 1/2 Selection
This function switches the Run command and frequency reference source between External reference 1 and 2 if the drive is
in the REMOTE mode.
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: Default drive settings do not allow switching between External reference 1 and 2 during run.
Selection on page 24
Setting 3 to 5: Multi-Step Speed Reference 1 to 3
Switches multi-step speed frequency references d1-01 to d1-08 by digital inputs.
59 for details.
Setting 6: Jog Reference Selection
The Jog frequency set in parameter d1-17 becomes the frequency reference when the input terminal closes.
Frequency Reference on page 59
Setting 7: Accel/Decel Time Selection 1
Switches between accel/decel times 1 (C1-01 and C1-02) and 2 (C1-03 and C1-04).
Times 1 to 4 on page 46 for details.
Setting 8, 9: Baseblock Command (N.O., N.C.)
When the drive receives a baseblock command, the output transistors stop switching, the motor coasts to stop, and a bb alarm
flashes on the digital operator to indicate baseblock. When baseblock ends while a Run command is active, the drive performs
Speed Search to restart the motor.
DIgital Input Function
Setting 8 (N.C.)
Setting 9 (N.O.)
WARNING! Sudden Movement Hazard. When using a mechanical holding brake with the drive in a lifting application, close the brake when
the drive output is cut off by a baseblock command triggered by one of the input terminals. Failure to comply will result in a slipping load
from the motor suddenly coasting when the baseblock command is entered and may cause serious injury or death.
Setting A: Accel/Decel Ramp Hold
When the digital input programmed for the Accel/decel ramp hold function closes, the drive locks (holds) the output frequency.
Acceleration or deceleration resumes when the input is reopened.
If the Accel/decel ramp hold function is enabled (d4-01 = 1), the drive saves the output frequency to memory when the Ramp
Hold input is closed. When the drive is restarted after stop or after power supply interruption, the saved output frequency
becomes the frequency reference (provided that the Accel/decel ramp hold input is still closed).
Reference Hold Function Selection on page 63
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
if this feature is required by the application.
for details.
Input Open
Baseblock (Interrupt output)
Normal operation
OFF ON
Run command
Baseblock input
Frequency
reference
Output frequency
Figure 1.54 Baseblock Operation During Run
for details.
Description
Refer to b1-07: LOCAL/REMOTE Run
Refer to d1: Frequency Reference on page
Refer to C1-01 to C1-08: Accel, Decel
Drive Operation
Baseblock
ON
release
Begin Speed Search from the
previous frequency reference
Output off, motor coasts
1.7 H: Terminal Functions
Refer to d1:
Input Closed
Normal operation
Baseblock (Interrupt output)
Refer to d4-01: Frequency
1
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