YASKAWA Varispeed E7 - Frequency Detection; Speed Agreement Function

6-26
Frequency Detection


 Speed Agreement Function
There are four different types of frequency detection methods available. The digital multifunction outputs M1
to M4 can be programmed for this function and can be used to indicate a frequency detection or agreement to
any external equipment.
Related Constants
• With L4-01 an absolute speed agreement level is set, i.e. a speed agreement is detected in both directions
(FWD and REV).
Multifunction Output Settings: H2-01 to H2-02
(M1 – M4 function selection)
The table below shows the necessary H2-01 and H2-02 parameter setting for each of the speed agreement
functions.
Con-
stant
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Operation
Access
Level
L4-01 Speed agreement detection level
Effective when "f
out
/f
set
agree 1", "Frequency detection 1"
or "Frequency detection 2" is set for a multi-function out-
put.
0.0 to
200.0
0.0 Hz No A
L4-02 Speed agreement detection width
Effective when "f
ref
/f
out
agree 1", "f
out
/f
set
agree 1", "Fre-
quency detection 1" or "Frequency detection 2" is set for a
multi-function output.
0.0 to
20.0
2.0 Hz No A
Function Setting
f
ref
/f
out
Agree 1
2
f
out
/f
set
Agree 1
3
Frequency detection 1 4
Frequency detection 2 5
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