Stopping Acceleration And Deceleration (Accel/Decel Ramp Hold) - YASKAWA CIMR-ACA4011 Instruction Manual

Stopping Acceleration and Deceleration (Accel/Decel Ramp Hold)

The accel/decel ramp hold function stops acceleration and deceleration, stores the output frequency at that
point in time, and then continues operation.
Set one of the parameters H1-01 to H1-10 (Terminal S3 to S12 Function Selection) to A (accel/decel ramp
hold) to stop acceleration and deceleration when the terminal is turned on and to store the output frequency at
that point in time. Acceleration and deceleration will restart when the terminal is turned off.
If d4-01 is set to 1 and the Accel/Decel Ramp Hold Command is input, the output frequency is still stored
even after the power supply is turned off.
Related Parameters
Name
Parameter
Number
Display
Frequency Refer-
ence Hold Func-
tion Selection
d4-01
MOP Ref Memory
Time Chart
A time chart for the Accel/Decel Ramp Hold Commands appears below.
Power supply
Forward/Stop
Accel/Decel Ramp Hold
Frequency reference
Output frequency
Application Precautions
When d4-01 is set to 1, the output frequency on hold is stored even after the power supply is turned off. If
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performing operations using this frequency after the MxC has also been turned off, input the Run Com-
mand with the Accel/Decel Ramp Hold turned on.
Description
Sets whether or not frequencies on hold will
be recorded.
0: Disabled (when operation is stopped or
the power is turned on again starts at 0.)
1: Enabled (when operation is stopped or the
power is turned on again starts at the pre-
vious hold frequency.)
This function is available when the multi-
function inputs "accel/decel Ramp Hold" or
"up/down" commands are set.
off on
off on off on
Hold Hold
Fig 6.50 Accel/Decel Ramp Hold
Input Terminal Functions
Control Methods
Change
Setting
Default during
Range
V/f
Run
0 or 1 0 No A
off
off on
d4-01 = 1
d4-01 = 0
Open
Flux
Loop
Vector
Vector
A A
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