Yaskawa AC Drive Z1000 - Manual (Page 283)

No.
(Addr.
Hex)
Name LCD Display Description Values Page
b2-12
(1BA)
Short Circuit Brake
Time at Start
SC Brake T@Start
OLV/PM OLV/PM
Sets the time for Short Circuit Braking operation at start.
Default: 0.00 s
Min.: 0.00
Max.: 25.50
–
b2-13
(1BB)
Short Circuit Brake
Time at Stop
SC Brake T@Stop
OLV/PM OLV/PM
Sets the Short Circuit Braking operation time at stop.
Default: 0.50 s
Min.: 0.00
Max.: 25.50
–
b2-18
(177)
Short Circuit Braking
Current
Shrt Cir Brk
OLV/PM OLV/PM
Determines the current level for Short Circuit Braking. Set as a
percentage of the motor rated current.
Default: 100.0%
Min.: 0.0
Max.: 200.0
–
<1> Default setting is determined by parameter A1-02, Control Method Selection.
u b3: Speed Search
No.
(Addr
Hex.)
Name LCD Display Description Values Page
b3-01
(191)
Speed Search Selection
at Start
SpdSrch at Start
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Default: <1>
Range: 0, 1
159
b3-02
(192)
Speed Search
Deactivation Current
SpdSrch DeactCur
Sets the current level at which the speed is assumed to be
detected and Speed Search is ended. Set as a percentage of the
drive rated current.
Default: <1>
Min.: 0%
Max.: 200%
159
b3-03
(193)
Speed Search
Deceleration Time
SpdSrch Dec Time
Sets output frequency reduction time during Speed Search. Default: 2.0 s
Min.: 0.1
Max.: 10.0
159
b3-04
(194)
V/f Gain during Speed
Search
SpdSrch V/f
Determines how much to lower the V/f ratio during Speed
Search.
Output voltage during Speed Search equals the V/f setting
multiplied by b3-04.
Default: <2>
Min.: 10%
Max.: 100%
159
b3-05
(195)
Speed Search Delay
Time
Search Delay
When using an external contactor on the output side, b3-05
delays executing Speed Search after a momentary power loss to
allow time for the contactor to close.
Default: 0.2 s
Min.: 0.0
Max.: 100.0
b3-06
(196)
Output Current 1 during
Speed Search
Srch Im Lvl1
Sets the current injected to the motor at the beginning of Speed
Estimation Speed Search. Set as a coefficient for the motor rated
current.
Default: <2>
Min.: 0.0
Max.: 2.0
159
b3-07
(197)
Output Current 2 during
Speed Search (Speed
Estimation Type)
Srch Im Lvl2
Sets the amount of output current during Speed Estimation
Speed Search as a coefficient for the no-load current (output
current during Speed Search is automatically limited by the
drive rated current).
Increase this setting value in increments of 0.1 if the drive fails
to perform Speed Estimation.
Default: 1.0
Min.: 0.0
Max.: 5.0
–
b3-08
(198)
Current Control Gain
during Speed Search
(Speed Estimation
Type)
Srch ACR P Gain
Sets the proportional gain for the current controller during
Speed Search.
Default: <1> <2>
Min.: 0.00
Max.: 6.00
–
b3-09
(199)
Current Control Integral
Time during Speed
Search (Speed
Estimation Type)
Srch ACR I Time
Sets the Integral Time for the current controller during Speed
Search.
Default: <1>
Min.: 0.0 ms
Max.: 1000.0 ms
–
b3-10
(19A)
Speed Search Detection
Compensation Gain
Srch Detect Comp
Sets the gain which is applied to the speed detected by Speed
Estimation Speed Search before the motor is reaccelerated.
Increase this setting if ov occurs when performing Speed Search
after a relatively long period of baseblock.
Default: 1.05
Min.: 1.00
Max.: 1.20
160
b3-11
(19B)
Speed Search Method
Switching Level (Speed
Estimation Type)
Srch Mthd Sw Lvl
Uses the amount of voltage remaining in the motor to
automatically switch the search method within the type of speed
measurement.
(200 V class at 100% = 200 V;
400 V class at 100% = 400 V)
Default: 5.0%
Min.: 0.5
Max.: 100.0
–
b3-12
(19C)
Minimum Current
Detection Level during
Speed Search
Srch I Deadband
Sets the minimum current detection level during Speed Search.
Increase this setting value in increments of 0.1 if the drive fails
to perform Speed Estimation.
Default: <2>
Min.: 2.0
Max.: 10.0
–
B.2 b: Application
YASKAWA ELECTRIC TOEP C710616 45E YASKAWA AC Drive – Z1000 User Manual 283
B
Parameter List