Chapter 4 Software index
4-31
Timing diagram is as following:
C40 Frequency Up/Down control using MFIT :
000: When using Up/Down command, the set frequency by this function will be
stored after the inverter stops.
UP/DOWN function is not available in stop mode.
001: When using Up/Down command, the set frequency will be reset to 0Hz after
the inverter stops.
002: When using Up/Down command, the set frequency will be stored after the
inverter stops. UP/DOWN function is available in stop mode.
1)
C40=000: when the RUN signal is ON, the inverter will accelerate to the F28 setting then
continue to run at the set command speed. When UP/DOWN terminal is activated, the inverter
begins to accelerate/decelerate until the signal is released then. It run at the reached speed.
When the RUN signal is OFF, the inverter decelerates to stop (or coasts to stop) according to
the setting of F09. The last output frequency when the RUN signal is OFF, will be stored in F28.
UP/DOWN Key is unavailable in stop. The stored frequency can not be changed by Up/Down
Terminal, but can be changed by the content of F28 by keypad.
2)
C40=001: the inverter will run from 0 Hz as the run signal is applied.
UP/DOWN operation method is same as C40=000. But on next RUN signal is ON, inverter
always starts up from 0Hz.
3)
C40=002: Same as when C40=001 but UP/DOWN is available while in stop mode.
Figure 4-17 Sleep/ Wake Mode
INV sleep condition
weak up
point
-C39-
C38
internal run command
external run command
INV out frequency
PID out frequency
sleep level (set from C38 unit is HZ)
C38: sleep level
C39: sleep delay
