C2: S-Curve Characteristics - YASKAWA HV600 Manual

Note:
If you decelerate the drive too quickly, the drive will detect an ov [Overvoltage] fault and shut off the output, and the motor will coast to
stop. To prevent motor coasting and stop the motor quickly and safely, make sure to set a Fast Stop time in C1-09.
◆

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.
The following figure explains how S-curves are applied.
Note:
• If STPo [Motor Step-Out Detected] occurs when starting a PM motor, try increasing the value set to C2-01.
• Setting the S-curve will increase the acceleration and deceleration times.
■
C2-01: S-Curve Time @ Start of Accel
No.
Name
(Hex.)
C2-01 S-Curve Time @ Start of
Accel
(020B)
■
C2-02: S-Curve Time @ End of Accel
No.
Name
(Hex.)
C2-02 S-Curve Time @ End of
Accel
(020C)
■
C2-03: S-Curve Time @ Start of Decel
No.
Name
(Hex.)
C2-03 S-Curve Time @ Start of
Decel
(020D)
■
C2-04: S-Curve Time @ End of Decel
No.
Name
(Hex.)
C2-04 S-Curve Time @ End of
Decel
(020E)
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
Figure 2.32 S-Curve Timing Diagram - Forward/Reverse Operation
V/f OLV/PM EZOLV OLV/PM
Sets the S-curve acceleration time at start.
V/f OLV/PM EZOLV OLV/PM
Sets the S-curve acceleration time at completion.
V/f OLV/PM EZOLV OLV/PM
Sets the S-curve deceleration time at start.
V/f OLV/PM OLV/PM EZOLV
Sets the S-curve deceleration time at completion.
Description
Description
Description
Description
2.4 C: Tuning
Default
(Range)
Determined by A1-02
(0.00 - 10.00 s)
Default
(Range)
0.20 s
(0.00 - 10.00 s)
Default
(Range)
0.20 s
(0.00 - 10.00 s)
Default
(Range)
0.00 s
2
(0.00 - 10.00 s)
225