Yaskawa VS-626 MC5 - Manual (Page 235)

8.2 Programming Mode Constants
- 27
Constant
Number Page
Control Methods Change
during
Opera-
tion
Factory
Setting
Setting
Range Description
Name
Constant
Number Page
Flux Vector Open Loop
Vector
Change
during
Opera-
tion
Factory
Setting
Setting
Range Description
Display
L3-04
Stall prevention
selection during decel
0: Disabled (Deceleration as set. If
deceleration time is too short, a
main circuit overvoltage may
result.)
1: Enabled (Deceleration is
stopped when the main circuit
voltage exceeds the overvoltage
level. Deceleration restarts
when voltage is returned.)
2: Intelligent deceleration mode
(Deceleration rate is automati
0 to 3 1 B B - 53 L3 04
StallP Decel Sel
(Deceleration rate is automati-
cally adjusted so that in Inverter
can decelerate in the shortest
possible time. Set deceleration
time is disregarded.)
3: Enabled (with braking resistor)
When a braking option (Braking
Resistor, Braking Resistor Unit,
Braking Unit) is used, always set
to 0 (Disabled.)
0 to 3 1 B B - 53
J Reference Detection: L4
Constant
Name
Setting Factory
Change
during
Control Methods
Constant
Number Display
Description
Setting
Range
Factory
Setting
g
during
Opera-
tion
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
400 0
0.0 B B - 54 L4 01
Spd Agree Level
,
put.
Frequencies to be detected are set
in Hz units. 400.0
0.0 B B - 54
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 B B - 54 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 B B - 54
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
--400.0
to 0.0 A A - 54 L4 03
Spd Agree Lvl + --
,
put.
Frequency detection width is set in
Hz units.
to
+400.0
0.0 A A - 54
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 A A - 54 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 A A - 54
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 A A - 54
Ref Loss Sel
lost)
Frequency reference is lost: Fre-
quency reference dropped over
90% in 400 ms.
8