EasyManuals Logo

YASKAWA A1000 Series Technical Manual

YASKAWA A1000 Series
544 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #167 background imageLoading...
Page #167 background image
5.3 C: Tuning
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual 167
Parameter Details
5
this uncontrolled motor state and to ensure that the motor stops quickly and safely, set an appropriate Fast Stop time to C1-09.
C1-10: Accel/Decel Time Setting Units
Determines the units for the acceleration and deceleration times set to C1-01 through C1-09 using parameter C1-10.
Setting 0: 0.01 s units
The accel/decel times are set in 0.01 s units. The setting range will be 0.00 to 600.00 s. If any of the parameters C1-01 to
C1-09 is set to 600.1 seconds or more, then C1-10 cannot be set to 0.
Setting 1: 0.1 s units
The accel/decel times are set in 0.1 s units. The setting range will be 0.0 to 6000.0 s.
C2: S-Curve Characteristics
Use S-curve characteristics to smooth acceleration and deceleration and to minimize abrupt shock to the load. Set S-
curve characteristic time during acceleration/deceleration at start and acceleration/deceleration at stop. If the STo fault
(Hunting Detection) occurs when starting a PM motor, try increasing the value set to C2-01.
C2-01 to C2-04: S-Curve Characteristics
C2-01 through C2-04 set separate S-curves for each section of the acceleration or deceleration.
Figure 5.32 explains how S-curves are applied.
Figure 5.32
Figure 5.32 S-Curve Timing Diagram - FWD/REV Operation
Setting the S-curve will increase the acceleration and deceleration times.
Actual accel time = accel time setting + (C2-01 + C2-02) / 2
Actual decel time = decel time setting + (C2-03 + C2-04) / 2
C3: Slip Compensation
The Slip Compensation function improves the speed accuracy of an induction motor. By adjusting the output frequency
in accordance with the motor load, it compensates the slip and makes the motor speed equal to the frequency reference.
Note: Perform Auto-Tuning and make sure that the motor rated current (E2-01), the motor rated slip (E2-02), and the no-load current
(E2-03) have all been set properly before making any adjustments to slip compensation parameters.
C3-01: Slip Compensation Gain
This parameter sets the gain for the motor slip compensation function. Although this parameter rarely needs to be
changed, adjustments might be needed under the following circumstances:
If the motor at constant speed is slower than the frequency reference, increase C3-01.
No. Parameter Name Setting Range Default
C1-10 Accel/Decel Time Setting Units 0 or 1 1
No. Parameter Name Setting Range Default
C2-01 S-Curve Characteristic at Accel Start
0.00 to 10.00 s
Determined by A1-02
C2-02 S-Curve Characteristic at Accel End 0.20 s
C2-03 S-Curve Characteristic at Decel Start 0.20 s
C2-04 S-Curve Characteristic at Decel End 0.00 s
C2-02
C2-01
C2-03
C2-04
C2-02
C2-01
C2-03
C2-04
FWD run
REV run
Output
frequency
common_TMonly

Table of Contents

Other manuals for YASKAWA A1000 Series

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the YASKAWA A1000 Series and is the answer not in the manual?

YASKAWA A1000 Series Specifications

General IconGeneral
SeriesA1000
TypeAC Drive
AltitudeUp to 1000m without derating
Output Frequency0-400 Hz
Control MethodV/f Control
Overload Capacity150% for 60 seconds
Communication OptionsModbus, DeviceNet, Profibus, Ethernet/IP
Ambient Temperature-10 to 50°C
Storage Temperature-20 to 60°C
Humidity5% to 95% (non-condensing)
Enclosure RatingIP20
Horsepower0.5 to 1000 HP
Power Range0.4 - 630 kW (varies by voltage and model)
Protection FeaturesOvercurrent, Overvoltage, Undervoltage, Overheat
Cooling MethodFan Cooled
SafetySafe Torque Off (STO)

Related product manuals