Accelerating And Decelerating Constant Frequencies In The Analog References (+/- Speed) - YASKAWA varispeed G7 CIMR-G7B series Instruction Manual

Accelerating and Decelerating Constant Frequencies in the Analog Refer-
ences (+/- Speed)
The +/- speed function increments or decrements the frequency set in analog frequency reference d4-02 (+/-
Speed Limit) using two contact signal inputs.
To use this function, set One of the constants H1-01 to H1-10 (multi-function contact terminal inputs S3 to
S12 function selection) to 1C (Trim Control Increase command) and 1D (Trim Control Decrease command).
Be sure to allocate two terminals so that the Trim Control Increase command and Trim Control Decrease com-
mand can be used as a pair.
Related Constants
Con-
stant
Number
d4-02
Trim Control Increase/Decrease Command and Frequency Reference
The frequency references using Trim Control Increase/Decrease command ON/OFF operations are shown
below.
Frequency Reference
Trim Control Increase
Command Terminal
Trim Control Decrease
Command Terminal
Application Precautions
Trim Control Increase/Decrease command is enabled when speed reference > 0 and the speed reference is
•
from an analog input.
When the analog frequency reference value - d4-02 < 0, the frequency reference is set to 0.
•
If only the Trim Control Increase command or Trim Control Decrease command has been set for a multi-
•
function contact input terminal S3 to S12, operation error OPE03 (invalid multi-function input selected)
will occur.
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6
Name
Description
Display
+ - Speed limits Set the frequency to be add to or
subtracted from the analog fre-
quency reference as a percent,
taking the maximum output fre-
quency to be 100%.
+ - 加减速极限
Enabled when the increase (+)
speed command or decrease (-)
speed command is set for a multi-
function input.
Set Frequency
Reference
+ d4-02
ON
OFF
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0 to
10% No A
100
Set Frequency
Reference Set Frequency Command
- d4-02
OFF ON
ON ON
Control Methods
MEMO
Open Open
BUS
V/f Flux
Loop Loop
Regis-
with Vec-
Vector Vector
ter
PG tor
1 2
A A A A 299H
OFF
OFF