Reference detection: l4, Fault restart: l5 – Yaskawa G5HHP Drive User Manual
Page 302

User Constants
8.2.7 Protection Constants: L
8 - 36
J
Reference Detection: L4
C
t t
Name
S tti
F t
Change
Control Methods
Constant
Number
Display
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
V/f
V/f
with
PG
Open
Loop
Vector
Flux
Vector
Page
L4-01
Speed agree detec-
tion level
Effective when “Desired frequency
(ref/setting) agree 1,” “Frequency
detection 1,” “Frequency detection
2,” are set for multi-function out-
t
0.0 to
150 0
0.0
x
B
B
B
B
7 - 92
L4 01
Spd Agree Level
,
put.
Frequencies to be detected are set
in Hz units.
150.0
0.0
x
B
B
B
B
7 - 92
L4-02
Speed agree detec-
tion width
Effective when “Frequency (ref/
out) agree 1,” “Desired frequency
(ref/setting) agree 1,” “Frequency
detection 1,” “Frequency detection
2”
t f
lti f
ti
t t
0.0 to
20 0
2.0
x
B
B
B
B
7 - 92
L4 02
Spd Agree Width
,
q
y
2” are set for multi-function output.
Sets the frequency detection width
in Hz units.
20.0
2.0
x
B
B
B
B
7 - 92
L4-03
Speed Agree detec-
tion level (+/--)
Effective when “Desired frequency
(ref/setting) agree 2,” “Frequency
detection 3,” “Frequency detection
4,” are set for multi-function out-
t
--150.0
to
0.0
x
A
A
A
A
7 - 92
L4 03
Spd Agree Lvl + --
,
put.
Frequency detection width is set in
Hz units.
to
+150.0
0.0
x
A
A
A
A
7 - 92
L4-04
Speed agree detec-
tion width (+/--)
Effective when “Frequency (ref/
out) agree 2,” “Desired frequency
(ref/setting) agree 1,” “Frequency
detection 3,” “Frequency detection
4”
t f
lti f
ti
t t
0.0 to
20 0
2.0
x
A
A
A
A
7 - 92
L4 04
Spd Agree Wdth + --
,
q
y
4” are set for multi-function output.
Frequency detection width is set in
Hz units.
20.0
2.0
x
A
A
A
A
7 - 92
L4-05
Operation when fre-
quency reference is
missing
0: Stop (Operation follows the fre-
quency reference.)
1: Operation at 80% speed contin-
ues. (At 80% of speed before
the frequency reference was
lost)
0, 1
0
x
A
A
A
A
7 - 92
Ref Loss Sel
lost)
;
Frequency reference is lost: Fre-
quency reference dropped over
90% in 400 ms.
J
Fault Restart: L5
C
t t
Name
S tti
F t
Change
Control Methods
Constant
Number
Display
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
V/f
V/f
with
PG
Open
Loop
Vector
Flux
Vector
Page
L5-01
Number of auto re-
start attempts
Sets the number of auto restart at-
tempts.
Automatically restarts after a fault
0 to 10
0
x
B
B
B
B
7 - 94
L5 01
Num of Restarts
Automatically restarts after a fault
and conducts a speed search from
the run frequency.
0 to 10
0
x
B
B
B
B
7 - 94
L5-02
Auto restart operation
selection
Sets whether a fault contact output
is activated during fault restart.
0: Not output (Fault contact is not
activated )
0, 1
0
x
B
B
B
B
7 - 95
L5 02
Restart Sel
activated.)
1: Output (Fault contact is acti-
vated.)
0, 1
0
x
B
B
B
B
7 - 95
8