F10: Start / Stop Control Method
Use function F10 to select between the keypad (F10 = “000”) or an external
signal (F10 = “001”) for run/stop instruction. The factory setting of F10 is “000”.
When F10 = “001”, emergency stop on the keypad is enabled.
F11: Frequency Command Selection
Use function F11 to select where the frequency command comes from. The
factory setting of F11 is “000”, so that the frequency command comes from the
keypad. Alternate settings allow the frequency command to come from an
analog signal on TM2, either 0 ~ 10V or 0 - 20mA (F11 = “001”), or 4 - 20mA
(F11 = “002”).
F12: Carrier Frequency
Use function F12 to change the PWM switching frequency from the factory
setting of 8 kHz (F12 = “005”) to any one of the settings listed in Fig. 11.
FIGURE 11
–
Ten different PWM switching frequencies to choose from
.
F12
carrier frequency
F12
carrier frequency
001
4 kHz
006
10 kHz
002
5 kHz
007
12 kHz
003
6 kHz
008
14.4 kHz
004
7.2 kHz
009
15 kHz
005
8 kHz
010
16 kHz
If F12 = 007 thru 010, the inverter will run hotter than normal. Additional cooling
may be required or a motor smaller than the normal rating should be used.
Although IGBT TYPE inverters can provide a low audible noise environment
during operation, it is possible that high frequency switching may interfere with
external electronic components (or other controllers).
F13: Torque compensation gain
Function F13 changes torque compensation gain from the factory setting of
0.0% (“000”) to any number between 0.0% (“000”) and 10% (“010”). The
voltage at the B and C points on the V/F patterns (refer to F05 description) are
boosted by the percentage set by F13 to enhance output torque.
F14: Stopping Mode
Function F14 changes the stopping method. If F14 = “000” (factory setting) and
the inverter receives a stop instruction, it decelerates to the frequency set by
F16 by applying the output voltage level set by F17 for the time duration set by
F15. If F14 = “001”, the motor coasts to a stop.
F15: DC Braking Time
Function F15 changes DC braking time from the factory setting of 0.5 seconds
to any number between 0.0 and 25.5 in increments of 0.1 second.
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