6-33
6
Frequency Detection
îš‹ Speed Agreement Function
There are eight different types of frequency detection methods available. The digital multifunction outputs M1
to M6 can be programmed for this function and can be used to indicate a frequency detection or agreement to
any external equipment.
îš„Related Parameters
îš„Multi-function Output Settings: H2-01 to H2-03
(M1 – M6 function selection)
The table below shows the necessary H2-01 to H2-03 parameter setting for each of the speed agreement func-
tions. Refer to the timing charts on the following page for details.
îš„Setting Precautions
• With L4-01 an absolute speed agreement level is set, i.e. a speed agreement is detected in both directions
(FWD and REV).
• With L4-03 a signed speed agreement level is set, i.e. a speed agreement is detected only in the set direc-
tion (positive level → FWD direction, negative level → REV direction).
Parameter
No.
Name
Factory
Setting
Change
during
Opera-
tion
Control Methods
V/f
V/f with
PG
Open
Loop
Vector
Closed
Loop
Vector
L4-01Speed agreement detection level 0.0 HzNo AAAA
L4-02Speed agreement detection width 2.0 HzNo AAAA
L4-03Speed agreement detection level (±) 0.0 HzNo AAAA
L4-04Speed agreement detection width (±) 2.0 HzNo AAAA
Function Setting
f
ref
/ f
out
agree 1
2
f
out
/ f
set
agree 1
3
Frequency detection 1 4
Frequency detection 2 5
f
ref
/ f
out
agree 2
13
f
out
/ f
set
agree 2
14
Frequency detection 3 15
Frequency detection 4 16
Frequency detection 5 36
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