STROETER SC 750/5 - Page 13

Standard user guide
V51-00-V19 eng
-13- Rights to changes reserved
Par. A: Stop frequency
This parameter works as parameter 9 but this is active when decelerating.
Par. B: Current limit
This can adjust the output current limit from 50% to 150%. If the current limit is exceeded does the
display flash and the output frequency is reduced,
Par. C: TIP - frequency
Frequency when using TIP mode or at reference run.
Par. D: Switch frequency
When the inverter is operating a tone will be heard. This is caused by the inverter switch frequency. In
case of motor resonance, the switch frequency can be changed in range from 2.0KHz to 8.0KHz (Default
2,5KHz). If switch frequency is above 4KHz, is it necessary to reduce the max output current according
to the following table, because of the heat dissipation in the inverter.
Switch Frequency Max output current
2,0 - 4,0 kHz 100%
≤ 5 kHz
90%
≤ 6 kHz
80%
≤ 7 kHz
70%
Note: Low switch frequencies lowers the heat in the
inverter and motor. So don’t change the default values
unless a noiseless performance is needed.
≤ 8 kHz
60%
Par. E: Automatic restart after trip errors (Auto-Reset)
0 No Auto-Reset / Last fault in dis
p
la
y
Reset b
y
p
ressin
g
STEP/STORE o
r
p
owerin
g
off
1 Auto-Reset after 1 sec.
2 Auto-Reset after 10 sec.
Note: Dan
g
er – Self startin
g
motor.
3 Auto-Reset after 30 sec.
4 No Auto-Reset at
p
ower on Reset onl
y
b
y
p
ressin
g
STEP/STORE
Note: When using Auto-Reset and relay function 1 or 4 is the relay only activated if there are 2 errors
in 5 min. Then auto reset is disabled
Reset of the error must only be done after the cause of the error is corrected.