Chapter 6 Description of Function Codes
When the AC drive is in dormant state and the current running command is effective, the AC
drives starts up after the wakeup delay time (F09.51) if the set frequency is higher than or
equal to the wakeup frequency (F09.50).
Generally, set the wakeup frequency equal to or higher than the dormant frequency. If the
wakeup frequency and dormant frequency are set to 0, the dormant and wakeup functions
are disabled.
When the dormant function is enabled, if the frequency source is PID, whether PID operation
is performed in the dormant state is determined by F10-28. In this case, select PID operation
enabled in the stop state (F10.28 = 1).
Function
code
Name
Description
(setting range)
Factory
Default
Change
F09.54
Current running time
reached
0.0Min
～
6500.0Min
0.0Min
※
If the current running time reaches the value set in this parameter, the corresponding multi-
function output terminal becomes ON, indicating that the current running time is reached.
Only valid for V/F control. The wave generation mode of the asynchronous motor V/F opera-
tion is determined. If the value is lower than this value, it is a 7-segment continuous modula-
tion mode. On the contrary, it is a 5-segment discontinuous modulation mode.
When it is 7-stage continuous modulation, the switching loss of the inverter is large, but the
current ripple is small; in the 5-stage intermittent debugging mode, the switching loss is small
and the current ripple is large; but at high frequency, it may cause The instability of the motor
operation generally does not need to be modified.
For V/F running instability, please refer to function code F04.11, and for inverter loss and
temperature rise, please refer to function code F00.17.
Function
code
Name
Description
(setting range)
Factory
Default
Change
F09.55
DPWM switchover
running frequency
upper limit
0.00Hz
～
15.00Hz
12.00Hz
※
Function
code
Name
Description
(setting range)
Factory
Default
Change
F09.56
PWM modulation
system
0: asynchronous modulation
1: synchronous modulation
0
※
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