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KFU 2-/4-
162
14.3.3 Reference
value
reached
In operation mode 5 - “Reference Frequency reached” for a digital output,
a signal is
generated via the corresponding output when the actual frequency has reached the
reference value.
In operation mode 6 - “Reference Percentage reached” for a digital output,
a signal is
generated via the corresponding output when the actual percentage value has
reached the reference value.
Signal source 163 - “Reference Frequency reached” or 178 - “Reference Percentage
reached” can be linked with inverter functions.
The hysteresis can be defined as a percentage of the adjustable range (Max - Min)
via parameter
Max. Control Deviation
549
.
Parameter
Settings
No.
Description
Min.
Max.
Fact. sett.
549 Max. Control Deviation
0.01 %
20.00 %
5.00 %
Op.Mode Digital Output 1
530
or
Op.Mode Digital Output 2
531
or
Op.Mode Digital Output 3
532
With expansion module:
Op.Mode EM-S1OUTD
533
or
Op.Mode EM-S1OUTD
534
5 - Reference Frequency reached
or
6 -
Reference Percentage reached
(
Configuration
30
= x11, x30)
Max. Control Deviation
549
Set value [%].
Actual Frequency
Actual Percentage Value
or
241
230
t
Digital output
Reference frequency
or
Reference percentage
Internal Reference Frequency
Reference Percentage Value
228
229
Max. Control Deviation
549
163 - Reference Frequency reached
178 - Reference Percentage reached
Example:
Hz
325
.
2
%
5
)
Hz
5
.
3
Hz
50
(
[%]
)
(
[%]
f
]
Hz
[
Deviation
Control
.
Max
549
418
419
549
Deviation
Control
Max.
Frequency
Minimum
Frequency
Maximum
Deviation
Control
Max.
Actual frequency
t
Digital output
Reference frequency = 30 Hz
2.325 Hz
163 - Reference Frequency reached
Maximum frequency = 50 Hz
Minimum frequency = 3.5 Hz
46.5 Hz