Raising And Lowering Frequency References Using Contact Signals (Up/Down) - YASKAWA CIMR-ACA4011 Instruction Manual

When d4-01 is set to 0 and a Run Command is input while the Accel/Decel Ramp Hold is turned on, the
•
output frequency will be set to zero.
If an Accel/Decel Ramp Hold Command is entered by mistake when decelerating during positioning,
•
deceleration may be canceled.
Raising and Lowering Frequency References Using Contact Signals (UP/
DOWN)
The UP and DOWN Commands raise and lower MxC frequency references by turning on and off multi-func-
tion digital input terminal S3 to S7.
To use this function, set one of the parameters H1-01 to H1-10 (Terminal S3 to S12 Function Selection) to 10
(UP Command) and 11 (DOWN Command). Be sure to allocate two terminals so that the UP and DOWN
Commands can be used as a pair.
The output frequency depends on the acceleration and deceleration time. Be sure to set b1-02 (Run Command
selection) to 1 (Control circuit terminal).
Related Parameters
Parameter
Number
d2-01
d2-02
d2-03
Precautions
When setting and using UP and DOWN Commands, observe the following precautions.
Setting Precautions
If multi-function input terminals S3 to S12 are set as follows, operation error OPE03 (Invalid multi-function
input selection) will occur:
Only either the Up Command or Down Command has been set.
•
Up/Down Commands and Accel/Decel Ramp Hold have been allocated at the same time.
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6
Name
Display
Frequency Refer-
Set the output frequency upper limit as a per-
ence Upper Limit
cent, taking the max. output frequency to be
100%.
Ref Upper Limit
Frequency Refer-
Sets the output frequency lower limit as a per-
ence Lower Limit
centage of the maximum output frequency.
Ref Lower Limit
Master Speed Ref-
Set the master speed reference lower limit as a
erence Lower
percent, taking the max. output frequency to
Limit
be 100%.
Ref1 Lower Limit
Setting
Description
Range
0.0 to
110.0
0.0 to
110.0
0.0 to
110.0
Control Methods
Change
Open
Default during
V/f Loop
Run
Vector
100.0% No A A
0.0% No A A
0.0% No A A
Flux
Vector
A
A
A