4-159
07- 05
Automatic start delay at power up
Range 【1.0~300.0】 Sec
When 07- 04 = 0, if power supply is on, the inverter automatically start at power up and it will count the
delay time set by 07–05. The inverter starts running only when the delay time ends.
！Warning:
When 07- 04 = 0 and run command source is set to external control (00- 02/00- 03 = 1), if
running switch is in conducting state and the inverter starts automatically when power supply is
on, customers are suggested to switch off the power supply and running switch at power loss to
prevent from the damage to the inverter and user when reconnecting.
When 07- 04 = 1 and run command source is set to external control (00- 02/00- 03 = 1), if
running switch is not in conducting state when power supply is on, the inverter will not start
automatically and STP1 will flash. It is required to switch off the running switch and then make it
be in conducting state and start the inverter after the delay time of automatic start at power up
ends.
07-06 DC injection braking starting frequency
Range
0.0~10.0 Hz
The braking opearion is controlled by the different control modes (00-00), please refer to the following
descriptions:
1. Control mode: VF、SLV (00-00 = 0、2)
When the inverter runs, DC injection braking is enabled by the time of parameter 07-16. Deceleration
to stop is according to 07-06 and 07-08. When output frequency is lower than 07-06 in deceleration
time, it starts DC injection braking by the time of 07-08.
07 - 16 07 - 08
07 - 06 (Braking start
frequency)
Or 01 - 08 (Fmin)
DC
injection
braking
DC
injection
braking
Output
frequency
Time
Figure 4.4.47a VF、VF+PG、SLV and SLV2 DC injection braking
Note: When 07-06<01-08, It start DC injection braking by the setting frequency (01-08)
2. Control mode: PMSLV (00-00=5)
Set short-circuit breaking time at start by 07-34 and DC braking time by 07-16. Braking action at
start runs by the setting time of 07-34 (short-circuit braking) and then by that of 07-16 (DC
braking).
Deceleration to stop is set by 07-35 (short-circuit braking) and 07-08 (DC braking). When output
frequency is lower than 07-06 in deceleration, braking action runs by the setting time of 07-35
(short-circuit braking) and then by that of 07-08 (DC braking).
Note: If 07-06 < 01-08, braking function starts at the setting frequency of 01-08. Refer to the following
figure 4.4.47b.
Set DC braking current level by 07-07 on the base of the inverter rated current being 100%. If the
setting value of 07-07 is higher than the motor rated current, DC braking current level is limited
to the motor rated value.
Set short-circuit braking current level by 07-36 on the base of the motor rated current being
100%.
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