Adding/Subtracting A Fixed Speed To An Analog Reference (Trim Control) - Omron VARISPEED F7 User Manual

Output frequency
Upper limit (d2-01)
Accelerates to
lower limit
Lower limit (d2-02)
Forward operation/stop
UP command
DOWN command
Speed agree*
Power supply
* The speed agree signal turns ON when the motor is not accelerating/decelerating while
the run command is ON.

Adding/Subtracting a Fixed Speed to an Analog Reference (Trim Control)

The trim control function adds or subtracts the value of parameter d4-02 to/from an analog frequency refer-
ence.
To use this function, set two of the parameters H1-01 to H1-05 (multi-function digital terminal inputs S3 to S7
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 are used as a pair. Otherwise an OPE03 alarm will be displayed.
Related Parameters
Parameter
No.
d4-02 Trim control speed limits
Multi-function Digital Inputs (H1-01 to H1-05)
Set Value
1C Trim control increase
1D Trim control decrease
Fig 6.70 UP/DOWN Commands Timing Chart
Name
Function
Same
frequency
Reference
frequency reset
Change
Factory during
Setting Opera-
V/f
tion
10% No A
V/f
Yes
Yes
Control Methods
Open Closed
V/f with
Loop Loop
PG
Vector Vector
A A A
Control Methods
V/f Open Closed
with Loop Loop
PG Vector Vector
Yes Yes Yes
Yes Yes Yes
6-
6
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