B3: speed search – Yaskawa Z1000U HVAC Matrix Bypass User Manual
Page 312
No.
(Addr.
Hex)
Name
LCD Display
Description
Values
Page
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
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
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
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
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%
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
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>
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: 2.0 ms
Min.: 0.0
Max.: 1000.0
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
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.
(208 Vac at 100% = 208 V;
480 V class at 100% = 480 V)
Default: 5.0%
Min.: 0.5
Max.: 100.0
b3-12
(019C)
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:
<1>
Min.: 2.0
Max.: 10.0
b3-14
(019E)
Bi-Directional Speed
Search Selection
Bidir Search Sel
0: Disabled
1: Enabled
0: Disabled (uses the direction of the frequency reference)
1: Enabled (drive detects which way the motor is rotating)
Default: 1
Range: 0, 1
b3-17
(01F0)
Speed Search Restart
Current Level
SrchRestart Lvl
Sets the Speed Search restart current level as a percentage of the
drive rated current.
Default: 150%
Min.: 0
Max.: 200
b3-18
(01F1)
Speed Search Restart
Detection Time
SrchRestart Time
Sets the time to detect Speed Search restart.
Default: 0.10 s
Min.: 0.00
Max.: 1.00
B.3 b: Application
312
YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual