YASKAWA CIMR-F7A Instruction Manual page 170

Con-
stant
Number
Overvolt-
L3-11 age inhibit
selection
Overvolt-
age inhibit
L3-12
voltage
level
* 1. C6-01 = 1:120%, C6-01 = 0:150%
* 2. When using flux vector control, 0 to 2.
* 3. These are values for a 200 V Class Inverter. Values for a 400 V Class Inverter are double.
Reference Detection: L4
User constants for the reference detection function are shown in the following table.
Con-
stant
Number
Speed
agreement
L4-01
detection
level
Speed
agreement
L4-02
detection
width
-60
5
Name Description
0: Disabled
1: Enabled
Used to enable or disable the
function for inhibiting main
circuit overvoltages by
reducing the regenerative
torque limit according to the
main circuit overvoltage
level.
If this function is enabled,
when the main circuit volt-
age rises, operation will be
performed with the regenera-
tive torque less than the set
value.
Sets the main circuit voltage
level for which the regenera-
tive torque limit is restricted
to 0.
Usually, there is no need to
change this setting.
If main circuit overvoltages
occur even with the over-
voltage inhibit function
enabled, reduce this setting.
Name Description
Effective when "Desired fre-
quency (ref/setting) agree
1," "Frequency detection 1,"
or "Frequency detection 2"
is set for a multi-function
output.
Frequencies to be detected
are set in Hz units.
Effective when "Frequency
(speed) agree 1," "Desired
frequency (speed) agree 1,"
or "Frequency (FOUT)
detection 1," Frequency
(FOUT) detection 2 is set for
a multi-function output.
Sets the frequency detection
width in Hz units.
Control Methods
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0 or 1 0 No No
350 to
380V
No No
390
*3
*3
Control Methods
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0.0 to
400.0
*1
0.0 Hz No A
0.0 to
300.0
*2
0.0 to
2.0 Hz No A
20.0
MEMO
Open
BUS
V/f Flux Page
Loop
Regis-
with Vec-
Vec-
ter
PG tor
tor
4-20
No A A 4C7H 6-34
7-2
4-20
No A A 4C8H
6-34
MEMO
Open
BUS
V/f Flux
Page
Loop
Regis-
with Vec-
Vec-
ter
PG tor
tor
A A A 499H 6-53
A A A 49AH 6-53