4-205
11- 03
Automatic Carrier Lowering Selection
Range
【0】:
Disable
【1】:
Enable
11-03=0: Automatic carrier frequency reduction during an overheat condition is disabled.
11-03=1: Carrier frequency is automatically lowered in case the inverter heatsink overheats and returns to
carrier frequency set in parameter 11-01 when the inverter temperature returns to normal. See section 3.5
for more information.
11- 04
S-curve Time Setting at the Start of Acceleration
11- 05
S-curve Time Setting at the End of Acceleration
11- 06
S-curve Time Setting at the Start of Deceleration
11- 07
S-curve Time Setting at the End of Deceleration
Range
【
0.00~2.50】Sec
The S curve function for acceleration / deceleration is used to reduce mechanical impact caused by the
load during momentary starting and stopping of the inverter. To use the S curve function set the time for
acceleration start point (11-04), acceleration end point (11-05), deceleration start point (11-06) and
deceleration end point (11-07). Refer to Fig.4.4.76 for more information.
Figure 4.4.76 S curve characteristic
Total acceleration and deceleration time when the S curve is used:
Accelerating time = Accelerating time 1 (or 2) + (11-04) + (11-05)
2
Deceleration time = Deceleration time 1 (or 2) + (11-06) + (11-07)
2
11- 08
Jump Frequency 1
11- 09
Jump Frequency 2
11-10
Jump Frequency 3
Range
【
0.0~599.0】Hz
11-11
Jump Frequency Width
Range
【
0.0~25.5】Hz
These parameters allow “jumping over” of certain frequencies that can cause unstable operation due to
resonance within certain applications.
Note: Prohibit any operation within the jump frequency range. During acceleration and deceleration the
frequency is continuous without skipping the jump frequency.
To enable jump frequency 1 – 3 (11-08 – 11-10) set the frequency to a value greater than 0.0 Hz.
Use the jump frequency width (11-11) to create a jump frequency range. Refer to Fig.4.4.77.
To Next Page
Loading...
