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nReference Detection: L4
Parameters for the reference detection function are shown in the following table.
Name
Param-
LCD
eter
Number
Display
Speed
Effective when "Desired fre-
agreement
quency (ref/setting) agree
detection
1," "Frequency detection 1,"
level
or "Frequency detection 2"
L4-01
is set for a multi-function
output.
Spd Agree
Frequencies to be detected
Level
are set in Hz units.
Speed
Effective when "Frequency
agreement
(speed) agree 1," "Desired
detection
frequency (speed) agree 1,"
width
or "Frequency (FOUT)
L4-02
detection 1," is set for a
multi-function output.
Spd Agree
Sets the frequency detection
Width
width in Hz units.
Speed
Effective when "Desired fre-
agreement
quency (speed) agree 2,"
detection
"Desired frequency (speed)
level (+/-)
agree 1" "Frequency
(FOUT) detection 3," or
L4-03
"Frequency (FOUT) detec-
tion 4" is set for a multi-
Spd Agree
function output.
Lvl+-
Frequency detection width is
set in Hz units.
Speed
Effective when "Frequency
agreement
(speed) agree 2," "Desired
detection
frequency (speed) agree 1,"
width (+/-)
or "Frequency detection 4"
L4-04
is set for a multi-function
output.
Spd Agree
Frequency detection width is
Width+-
set in Hz units.
Operation
0: Stop (Operation follows
when fre-
the frequency reference.)
quency ref-
1: Continue speed opera-
erence is
tion according to setting
lost
of L4-06. (At 80% of
speed before the fre-
L4-05
quency reference was
lost)
Ref Loss
Frequency reference is lost:
Sel
Frequency reference
dropped over 90% in 400
ms.
Frequency
reference
Enables operation selection
for loss of
when frequency reference is
L4-06
frequency
lost and operation at the fol-
reference
lowing speed:
(Speed prior to loss) x L4-06
Fref at Floss
* For (-E) models only. Otherwise always 80.0%.
Setting
Description
Range
0.0 to
400.0
0.0 to
20.0
-400.0
to
+400.0
0.0 to
20.0
0 or 1
0.0 to
100.0%
Control Methods
Change
V/f
during
Factory
Setting
Opera-
V/f
with
tion
PG
0.0 Hz
No
A
A
2.0 Hz
No
A
A
0.0 Hz
No
A
A
2.0 Hz
No
A
A
0
No
A
A
*
*
80.0
No
A
A
Parameter Tables
Register Page
Open
Loop
A
499H
-
A
49AH
-
A
49BH
-
A
49CH
-
A
49DH
6-58
*
4C2H
-
A
61
5-
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Troubleshooting
