Publicité
Parameter description
inverter heat sink temperature increase. In this case the user needs to derating for the inverter, or there is
the danger of overheating inverter alarm.
Carrier frequency adjusts with temperature
P0-16
Carrier frequency temperature adjustment means when the inverter detects its own heat sink
temperature is high, it will automatically reduce the carrier frequency in order to reduce the temperature
rise of the inverter. When the heat sink temperature is low, the carrier frequency is gradually restored to
the set value. This feature can reduce the chance of inverter overheating alarm.
Acceleration time 1
P0-17
Setting range
Deceleration time 1
P0-18
Setting range
Acceleration time means the needed time for the inverter accelerating from zero frequency to
acceleration and deceleration reference frequency (P0-25 determination). See t1 in Figure
Deceleration time means the needed time for the inverter decelerating from acceleration and deceleration
reference frequency (P0-25 determination) to zero frequency. See t2 in Figure 6-1.
output frequency Hz
Acceleration and
deceleration reference
frequency
Set frequency
Actual acceleration
time
Set acceleration time
VFD provides four group of acceleration and deceleration time. Users can take advantage of the
digital input terminal DI toggle. Four group of acceleration and deceleration time set by function code are
as follows:
First group: P0-17, P0-18
Second group: P8-03, P8-04
second group: P8-05, P8-06
Fourth group: P8-07, P8-08
Acceleration/Deceleration time unit
P0-19
Setting
range
As to meet the needs of all types of site, VFD provides three kinds of acceleration and
deceleration time units, respectively are 1 second, 0.1 seconds and 0.01 seconds.
Note: When modify the function parameters, Group 4 decimal places will change the displayed
acceleration and deceleration time, Corresponding to the acceleration and deceleration time changes, pay
special attention to the application process.
Auxiliary superimposed frequency source bias frequency
P0-21
Setting range
Specification of high-performance vector converter
Setting range
Factory default
0.00s～65000s
Factory default
0.00s～65000s
Figure 6-1 Diagram of acceleration and deceleration time
Factory default
0
1s
1
0.1s
2
0.01s
Factory default
0: no
1: yes
Depend on machine type
Depend on machine type
Actual deceleration time
Set deceleration time
Factory default
0.00Hz～ maximum frequency F0-10
- 74 -
time
1
0.0Hz
0
6-1.
Publicité
