Stopping Acceleration And Deceleration (Acceleration/Deceleration Ramp Hold) - YASKAWA varispeed G7 CIMR-G7B series Instruction Manual

Stopping Acceleration and Deceleration (Acceleration/Deceleration
Ramp Hold)
The acceleration/deceleration ramp hold function stops acceleration and deceleration, stores the output fre-
quency at that point in time, and then continues operation.
Set one of the constants H1-01 to H1-10 (multi-function contact input terminal S3 to S12 function selection)
to A (acceleration/deceleration 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 Acceleration/Deceleration Ramp Hold command is input, the output frequency is
still stored even after the power supply is turned OFF.
Related Constants
Con-
stant
Number
d4-01
Time Chart
The time chart when using Acceleration/Deceleration Ramp Hold commands is given below.
Acceleration/Deceleration
Ramp Hold
Frequency reference
Output frequency
-78
6
Name
Description
Display
Frequency ref- Sets whether or not frequencies
erence hold on hold will be recorded.
function selec- 0: Disabled (when operation is
tion 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 previous
hold frequency.)
频率保持功能
This function is available when
the multi-function inputs "accel/
decel Ramp Hold" or "up/down"
commands are set.
Power supply
Forward/Stop
Hold
Fig 6.51 Acceleration/Deceleration Ramp Hold
Control Methods
Change
Setting Factory during
V/f
Range Setting Opera-
V/f with
tion
PG
0 or 1 0 No A A
Hold
MEMO
Open Open
BUS
Flux
Loop Loop
Regis-
Vec-
Vector Vector
ter
tor
1 2
A A A 298H