Input Terminal Functions
6-
65
n
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
performing
operations using this frequency after the Inverter has also been turned OFF, input the run com-
mand
with the Acceleration/Deceleration Ramp Hold turned ON.
•
When
d4-01 is set to 0 and a run command is input while the Acceleration/Deceleration Ramp Hold is
turned
ON, the output frequency will be set to zero.
•
If
you input an Acceleration/Deceleration Ramp Hold command by error when decelerating during posi-
tioning,
deceleration may be canceled.
K
K
K
K
Raising
and
Lowering
Frequency
References
Using
Contact
Signals
(UP/
DOWN)
The
UP and DOWN commands raise and lower Inverter frequency references by turning ON and OFF a multi-
function
contact input terminal S3 to S7.
To
use this function, set one of the parameters H1-01 to H1-05 (multi-function input terminal S3 to S7 func-
tion
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).
n
Related
Parameters
n
Precautions
When
setting and using UP and DOWN commands, observe the following precautions.
Setting
Precautions
If
multi-function input terminals S3 to S7 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 Acceleration/Deceleration Ramp Hold have been allocated at the same time.
Param-
eter
Num-
ber
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control
Methods
V/f
V/f
with
PG
Open
Loop
Vec-
tor
LCD
Display
d2-01
Frequency
reference upper
limit
Set
the output frequency upper limit as a percent,
taking
the maximum output frequency to be 100%.
0.0
to
110.0
100.0%
No
A
A
A
Ref
Upper Limit
d2-02
Frequency
reference lower
limit
Set
the output frequency lower limit as a percent-
age
of the maximum output frequency.
0.0
to
110.0
0.0%
No
A
A
A
Ref
Lower Limit
d2-03
Master
speed reference
lower
limit
Set
the master speed frequency reference lower
limit
as a percent, taking the maximum output fre-
quency
to be 100%.
0.0
to
110.0
0.0%
No
A
A
A
Ref1
Lower Limit
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