9-34
Function Parameters
AC10 Inverter
a) F601: Initial frequency of DC-braking. DC braking will start to work as inverter’s output
frequency is lower than this value.
b) F602/F603: DC Braking efficiency (When F606=0, the unit is V. When F606=1, the unit is
the percentage of rated current). The bigger value will result in a quick braking. However,
motor will overheat with too big value.
c) F604: Braking duration before starting. The time lasted for DC braking before inverter
starts.
d) F605: Braking duration when stopping. The length of time for DC braking while inverter
stops.
DC braking, as shown in Figure 9-19.
F607 Selection of Stalling Adjusting
Function
Setting range:
0: Invalid;
1: Valid
2: Reserved
Mfr’s value: 0
F608 Stalling Current Adjusting (%)
Setting range: 60
～
200
Mfr’s value: 160
F609 Stalling Voltage Adjusting (
％
)
Setting range: 110
～
200
Mfr’s value: 140
F610 Stalling Protection Judging Time (S) Setting range: 0.1
～
3000.0
Mfr’s value: 60.0
F607 is used to set selection of stalling adjusting function.
Voltage control: when motor stops quickly or load changes suddenly, DC bus voltage will be
high. Voltage control function can adjust deceleration time and output frequency to avoid OE.
When braking resistor or braking unit is used, do not use voltage control function
otherwise, the deceleration time will be changed.
Current control: when motor accelerates quickly or load changed suddenly, inverter may trip
into OC. Current control function can adjust accel/decel time or decrease output frequency to
control proper current value. It is only valid in VF control mode.
Note: (1) Voltage/current control is not suitable for lifting application.
(2) This function will change accel/decel time. Please use this function properly.
Initial value of stalling current adjusting is set by F608, when the present current is higher than
rated current *F608, stalling current adjusting function is valid.
During the process of deceleration, stalling current function is invalid.
During the process of acceleration, if output current is higher than initial value of stalling current
adjusting and F607=1, then stalling adjusting function is valid. Inverter will not accelerate until
the output current is lower than initial value of stalling current adjusting.
In case of stalling during stable speed running, the frequency will drop. If the current returns to
normal during a stall condition the frequency will rise. Otherwise, the frequency will keep
dropping to the minimum frequency and the protection OL1 will occur after it lasts for the time
as set in F610.
Initial value of stalling voltage adjusting is set by F609, when the present voltage is higher than
rated voltage *F609, stalling voltage adjusting function is valid.
Stalling voltage adjusting is valid during the process of deceleration, including the deceleration
process caused by stalling current.
Over-voltage means the DC bus voltage is too high and it is usually caused during deceleration.
During the process of deceleration, DC bus voltage will increase because of energy feedback.
When DC bus voltage is higher than the initial value of stalling voltage and F607=1, then
stalling adjusting function is valid. Inverter will temporarily stop decelerating and keep output
frequency constant, this stops energy being fed back into the inverter. Inverter will not
decelerate until DC bus voltage is lower than the initial value of stalling voltage.
TC-Hydraulik - R
ü
sdorfer Str. 8 - 25746 Heide - Lars Lornsen - T: +49 481 909 - 34 - [email protected] - www.tc-hydraulik.de
