Parameter Details
12
12.3 C: TUNING
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 585
Item Heavy Duty Rating 1 (HD1) Heavy Duty Rating 2 (HD2) Normal Duty Rating 1 (ND1) Normal Duty Rating 2 (ND2)
Load
Characteristics
Application
A high overload tolerance is necessary during start up, acceleration,
deceleration, and equivalent conditions.
• Extruder
• Conveyor
• Cranes and hoists
• Constant torque or high overload capacity are necessary.
Overload tolerance is not necessary.
• Fan
• Pump
• Blower
Overload
Tolerance
150% - 60 seconds 110% - 60 seconds
Stall Prevent
Level during
Accel
150% 110%
Stall Prevent
Level during Run
150% 110%
Carrier Frequency 2 kHz 2 kHz Swing-PWM
Note:
• Set the stall prevention level during acceleration with L3-02 and the stall prevention level during run with L3-06.
• Changing C6-01 also changes the maximum capacity of applicable drive motors. The drive automatically changes the setting values
E2-xx and E4-xx to applicable values. The drive also automatically changes these parameters that depend on motor output:
–b8-04 [eSave Coef. Value]
–C5-17 [Motor Inertia]
–C5-37 [M2 Inertia]
–L2-03 [Min Baseblck Time]
–L3-24 [Acc@Rated Torque]
–n5-02 [Mot Inertia Acceleration Time]
■ C6-02 Carrier Frequency Selection
No.
(Hex.)
Name Description
Default
(Range)
C6-02
(0224)
Carrier Frequency Selection
Sets the carrier frequency for the transistors in the drive.
Determined by A1-02, C6-
01, and o2-04
(Determined by A1-02)
Changes to the switching frequency will decrease audible noise and decrease leakage current.
Note:
Increasing the carrier frequency to more than the default setting will automatically decrease the drive current rating.
1 : 2.0 kHz
2 : 5.0 kHz (4.0 kHz for AOLV/PM)
3 : 8.0 kHz (6.0 kHz for AOLV/PM)
4 : 10.0 kHz (8.0 kHz for AOLV/PM)
5 : 12.5 kHz (10.0 kHz for AOLV/PM)
6 : 15.0 kHz (12.0 kHz AOLV/PM)
7 : Swing PWM 1 (Audible Sound 1)
8 : Swing PWM 2 (Audible Sound 2)
9 : Swing PWM 3 (Audible Sound 3)
A : Swing PWM 4 (Audible Sound 4)
F : User (C6-03 to C6-05)
Use C6-03 to C6-05 to set detailed setting values.
Note:
The carrier frequency for Swing PWM 1 is equivalent to 2.0 kHz. Swing PWM applies a special PWM pattern to decrease the audible
noise.
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