Yaskawa Z1000U - Manual (Page 257)

u b2: DC Injection Braking
No.
(Addr.
Hex)
Name LCD Display Description Values Page
b2-01
(0189)
DC Injection Braking
Start Frequency
DCInj Start Freq
Sets the frequency at which DC Injection Braking starts when
“Ramp to stop” (b1-03 = 0) is selected.
Default: <1>
Min.: 0.0 Hz
Max.: 10.0 Hz
145
b2-02
(018A)
DC Injection Braking
Current
DCInj Current
Sets the DC Injection Braking current as a percentage of the
drive rated current.
Default: 50%
Min.: 0
Max.: 100
146
b2-03
(018B)
DC Injection Braking
Time at Start
DCInj Time@Start
Sets DC Injection Braking time at start. Disabled when set to
0.00 seconds.
Default: 0.00 s
Min.: 0.00
Max.: 10.00
146
b2-04
(018C)
DC Injection Braking
Time at Stop
DCInj Time@Stop
Sets DC Injection Braking time at stop. Default: 0.00 s
Min.: 0.00
Max.: 10.00
–
b2-09
(01E1)
Motor Pre-Heat Current
2
Preheat Current
Determines the percentage of motor rated output current used
for the motor pre-heat function.
Default: 5%
Min.: 0
Max.: 100
–
<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
(0191)
Speed Search Selection
at Start
SpdSrch at Start
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Default: 0
Range: 0, 1
146
b3-03
(0193)
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
147
b3-04
(0194)
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: <1>
Min.: 10%
Max.: 100%
147
b3-05
(0195)
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
(0196)
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: <1>
Min.: 0.0
Max.: 2.0
147
b3-07
(0197)
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
(0199)
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: <2>
Min.: 0.0 ms
Max.: 1000.0 ms
–
b3-10
(019A)
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
147
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
–
B.3 b: Application
YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual 257
B
Parameter List