Installation manual

Application Parameters
86 S1A53838 09/2011
(1) See table page 168.
(2) For 400 V applications with motor leads longer than 30 m (100 ft).
F311
[Motor direction]
-
1
0
1
2
Use parameter F311 to permit only forward or reverse operation.
[Fw & Rev.]
[Fw only]
[Rev. only]
F312
[Noise reduction]
Switching Frequency Random Mode
0
0
1
Random control of the switching frequency may reduce audible motor noise.
Random control of the switching frequency will not be performed if the switching frequency is set above 7.1 kHz, regardless of
the setting of F312.
[Disable]
[Enable]
F316
[Switch. freq. mode]
Switching frequency control mode
1
0
1
2
3
[Fixed] - ATV212pppM3X and ATV212pppN4: switching frequency NOT automatically reduced
[Auto] - ATV212pppM3X and ATV212pppN4: switching frequency automatically reduced
[460 V fixed] - ATV212pppN4 (2): switching frequency NOT automatically reduced
[460 V Auto] - ATV212pppN4 (2): switching frequency automatically reduced
If parameter F316 is set to 1 or 3, the switching frequency level will be automatically controlled to help prevent a drive over-
heating. If the drive senses an impending overheating, it will reduce the switching frequency, thus reducing heat produced by the
controller. As the temperature approaches normal, the switching frequency will return to the level selected by parameter [Switch.
freq. level] (F300).
If F316 is set to 1 or 3, motor control performance is optimized if parameter F300 is set to 6 kHz or 8 kHz.
Code Name / Description Adjustment range Factory setting