User Manual
EM303B General Purpose Inverter
132
Carrier frequency is set by F0-14. See 7.1 for the description of carrier frequency.
Carrier frequency can reduce the electromagnetic noise of motor on premise of not increasing
the electric loss of inverter. There are 2 automatic PMW modes for EM-series inverters
which can be selected based on the motor power and mechanic devices.
Upgrading Running Performance
8.9.5
Open Loop Slip Compensation
No.
Function
Range
Unit Default Type
F3-30
Open Loop Slip Compensation
0.00
~
200.00
%
100.00
●
The speed of motor rotor decreases as load increases. In order to ensure that the speed of rotor
is close to synchronous speed, motor could start slip frequency when motor is on rated load.
When the speed of motor is lower than the objective value, increase the setting value of
F3-30.
F3-30
=
0 Slip compensation is disabled.
No.
Function
Range
Unit Default Type
F7-24
Slip Filter Time
0.01
~
20.00
S
1.00
●
F7-24 sets the filter time of slip signal if slip compensation is enabled. If the filter time is too
little, it will result in system running unstably, and if the filter time is too much, it will cause
compensation responding slowly.
8.9.6
Stator Voltagedrop Compensation Gain
No.
Function
Range
Unit Default Type
F7-25
Stator Voltagedrop Compensation Gain 0.00
~
200.00
%
100.00
●
F7-25 is for compensating the voltagedrop generated by stator resistance and cable.
8.9.7
Deadband Compensation Gain
No.
Function
Range
Unit Default Type
F7-26
Deadband Compensation Gain
0.00
~
200.00
%
100.00
●
Users do not need to edit F7-26 on general conditions.
8.9.8
Limit Control
No.
Function
Range
Unit
Default Type
F7-29
MIN Effective Output
Frequency
0.00
~
Fmax/0.0
~
Fmax
Hz
0.00
〇
F7-30
MIN Acceleration/
Deceleration Time
0.05
~
30.00
S/min 0.05
〇
F7-29
If the setting frequency of inverter< minimum effective output frequency, inverter
does not output.
F7-30
If acceleration/deceleration time <the setting value of F7-30, system will take the
setting value of F7-30 as the minimum acceleration/deceleration time automatically.