![background image](http://html1.mh-extra.com/html/omron/q2v-series/q2v-series_technical-manual_743226456.webp)
456
SIEPCYEUOQ2V01A Q2V Technical Manual
■
b2-12: SCB Time@Start
No.
(Hex.)
Name
Description
Default
(Range)
b2-12
(01BA)
SCB Time@Start
Sets the Short Circuit Braking time at start.
0.00 s
(0.00 - 25.50 s)
This function stops and restarts a coasting PM motor. The drive short circuits all the three motor phases to make
braking torque in the motor.
Set this parameter to 0.00 to disable the function.
Note:
•
Short circuit Braking will let external forces rotate the PM motor. Use DC Injection Braking to prevent motor rotation from external
forces.
•
Motor speed and load conditions can make it necessary to install a dynamic braking option on the drive.
■
b2-13: SCB Time@Stop
No.
(Hex.)
Name
Description
Default
(Range)
b2-13
(01BB)
SCB Time@Stop
Sets the Short Circuit Braking time at stop.
A1-02 = 8: 0.00 s
Other than A1-02 = 8: 0.50
s
(0.00 - 25.50 s)
This function fully stops a PM motor with a large inertia during deceleration and will not let the inertia continue to
rotate the motor.
Short Circuit Braking operates for the time set in
b2-13
when output frequency is less than the value set in
b2-01
[ZSpd/DCI Threshold] or E1-09 [Min Output Frequency]
.
Set this parameter to 0.00 to disable the function.
Note:
Motor speed and load conditions can make it necessary to install a dynamic braking option on the drive.
■
b2-18: SCB Current
No.
(Hex.)
Name
Description
Default
(Range)
b2-18
(0177)
SCB Current
Sets the Short Circuit Braking Current as a percentage of the motor rated current.
100.0%
(0.0 - 200.0%)
The Short Circuit Braking current cannot be higher than the drive rated current, although a higher current level
can be set using
b2-18
. The maximum rated current is 120% when the drive is set for Normal Duty (
C6-01 = 1
[ND Rating]
). The maximum rated current is 150% when the drive is set for Heavy Duty (
C6-01 = 0 [HD
Rating]
).
◆
b3: SPEED SEARCH
The Speed Search function detects the actual speed of a coasting motor, then restarts the motor before the motor
stops.
Use Speed Search in these conditions:
•
To continue operation after momentary power loss
•
To switch from commercial power supply to drive power
•
To restart a coasting fan
For example, the drive output turns off and the motor coasts when there is a momentary loss of power. After you
return power, the drive does Speed Search on the coasting motor, and restarts the motor from the detected speed.
When you use a PM motor, enable
b3-01 [SpSrch@Start Selection]
.
There are two types of Speed Search for induction motors: Current Detection and Speed Estimation. Use
parameter
b3-24 [SpSrch Method Selection]
to select the type of Speed Search.
Parameter settings are different for different types of Speed Search. Refer to
for more information.
V/f
OLV
OLV/PM
OLV/PM AOLV/PM
EZOLV
V/f
OLV
OLV/PM
OLV/PM AOLV/PM
EZOLV
V/f
OLV
OLV/PM
OLV/PM AOLV/PM
EZOLV
Summary of Contents for Q2V Series
Page 2: ...This Page Intentionally Blank 2 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 12: ...12 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 18: ...i 2 Legal Information 18 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 26: ...1 2 Features and Advantages of Control Methods 26 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 38: ...2 8 Installation Methods 38 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 70: ...3 3 Main Circuit Wiring 70 SIEPCYEUOQ2V01A Q2V Technical Manual Models B006 B012...
Page 102: ...3 17 Motor Application Precautions 102 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 138: ...4 12 Test Run Checklist 138 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 144: ...5 2 European Standards 144 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 145: ...Standards Compliance 5 5 2 European Standards SIEPCYEUOQ2V01A Q2V Technical Manual 145...
Page 146: ...5 2 European Standards 146 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 266: ...7 10 Troubleshooting Without Fault Display 266 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 284: ...8 6 Storage Guidelines 284 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 312: ...10 10 Peripheral Devices and Options 312 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 430: ...11 21 Parameters Changed by PM Motor Code Selection 430 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 731: ...SIEPCYEUOQ2V01A Q2V Technical Manual 731 Z Z pulse Auto Tuning 125...