Chapter 4 Software Index
4-51
10-04: Carrier mode selection
=0: Carrier mode0 3-phase PW M modulation
=1: Carrier mode1 2-phase PW M modulation
=2: Carrier mode2 2-phase randomized PW M modulation
=3: Carrier mode3 randomized PW M modulation
=4: Carrier mode4 dual randomized PW M modulation
1. 10-04=0: Carrier mode0 is recommended in environments where low noise is required.
Correct ambient temperature and cooling is necessary.
2. 10-04=1: Carrier mode1 is recommended in locations where fan or pumps is required.
3. 10-04=2: Carrier mode2 Help to slow down the temperature raise prolong life-span of IGBT and
control electromagnetism noise.
4. 10-04=3: Carrier mode3 Suit to the application that using lower carrier wave in order to get low
temperature or high torque, and hopes to shun shrill electromagnetism noise. This function mostly
produces white noise.
5. 10-04=4: Carrier mode4 Reduce 1/3 on-off switch timers, prolong life-span of IGBT, and will not
increase electromagnetism noise, even lower.
Note: When the inverter is running at high speed and high carrier frequency is selected then,
please set 10-04=1 this can reduce the IGBT switching losses (heat loss).
10-05: Acceleration Time 2 (MFIT) (Seconds) 0.1 ~ 3600.0
10-06: Deceleration Time 2 (MFIT) (Seconds) 0.1 ~ 3600.0
10-07: S-Curve Acc/Dec 1 (Seconds) 0.0 ~ 4.0
10-08: S-Curve Acc/Dec 2(Seconds) 0.0 ~ 4.0
10-09: S-Curve Acc/Dec 3 (Seconds) 0.0 ~ 4.0
10-10: S-Curve Acc/Dec 4 (Seconds) 0.0 ~ 4.0
Use S Curve parameters where a smooth acceleration or deceleration action is required, this will
prevent possible damage caused to machines by sudden acceleration/deceleration.
Four parameters can be selected as shown on the diagram below:
Note:
a. Regardless of the stall prevention period, actual acceleration and deceleration time =preset
acceleration / deceleration time + S curve time.
b. Please set the S curve time separately in the parameter (10-07~10-10)
c. When S curve time (10-07~10-10) is set as 0, the S curve function is disabled.
d. Note: The calculating of S curve time is based on the rated frequency of motor (06-04), Please
refer to the parameter (00-09/00-10).
Figure 4-28 S-Curve Characteristics
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