Appendix C – Table of MFC710 frequency converter's parameters
Parameter / Name
Function
Available options / measurement unit
Factory
setting
Change
during
operation
1.16 Add. L
Additional inductance in
stator's circuit (inductance
of wires)
service parameter
1.18 Store mot.
Storing specified
parameters
000 ---
– resignation from writing
002 Motor 1 ... 005 Motor 4
– memory buffers
designed for writing
NO
1.19 Read mot.
Reading specified
parameters
000 ---
– resignation from reading
002 Motor 1 ... 005 Motor 4
– memory buffers
designed for reading
NO
1.20 Oper. mode
Device operating mode
000 U/f linear
– operation in scalar mode (linear
characteristic)
001 U/f squared
– as above (exponential
characteristic)
002 Vector1 w/o en
– vector mode without sensors
003 Vector2 enc.
– vector mode with encoder
T4, T5
– service parameters
000 U/f linear NO
1.21 f carr
Switching frequency of the
converter (IGBT modules)
2.0 ... 16.0 kHz
Note: The setting range depends on the converter's
nominal power.
depends on
the nominal
power of the
converter
NO
1.22 f rand
Random modulation –
percent of changes in
carrier frequency
0 … 100%
0 %
NO
1.25 Mot.choice
The choice of active motor
000 Motor 0 … 004 Motor 4
– the choice of active
motor
005 Par.1.26
– the choice of active motor by par.
1.26
NOTE: Motor 0 store actual motor's parameters
Motor 0
NO
1.26 Mot.choice
PCH
Set PCH to choice the
active motor
000 (PCH.0) … 511 (PCH.511)
NOTE: If logical variable is selected, the choice of
the active motor is between Motor 0 and Motor 1.
000 Sw.Off
(PCH.0)
NO
1.30 Accel. 1
Acceleration
DYNAMICS 1
0.0 ... 600.0 s
50.0 Hz
Par. 1.30
f
t
1.0 ÷ 20.0 s
depends on
the nominal
power of the
converter
YES
1.31 Decel. 1
Deceleration
DYNAMICS 1
0.0 ... 600.0 s
50.0 Hz
Par. 1.31
f
t
1.0 ÷ 20.0 s
depends on
the nominal
power of the
converter
YES
1.32 Accel. 2
Acceleration
DYNAMICS 2
0.0 ... 600.0 s
20 s
YES
1.33 Decel. 2
Deceleration
DYNAMICS 2
0.0 ... 600.0 s
20 s
YES
1.34 Stop Delay
Set stopping time of the
motor, see section 4.3.1
0.0 ... 600.0 s
0.0 s
YES
1.35 S Curve
S Curve
0 ... 300 %
50.0 Hz
Par. 1.30
f
t
Par. 1.35
0,00 %
YES
1.36 Dyn. choice
Enabling
DYNAMICS 1 or
DYNAMICS 2
000 Sw.Off
– Dynamics 1 active (accel. and delay 1)
001 In.C1…006 In.C6
– switching on Dynamics 2 by
means of digital input DI1...DI6
007 Sw.On
– Dynamics 2 active (acceleration 2 i
delay 2)
000 Sw.Off
YES
1.40 f max
Maximum output frequency 0.0 ... 600.0 Hz
NOTE: see also par. 2.12
55.0 Hz
YES
1.41 I limit M
Current limitation at motor
operation
0.0 ... 180.0 % motor In
150.0 %
YES
1.42 I limit G
Current limitation at
generator operation
0.0 ... 180.0 % motor In
150.0 %
YES
1.43 T limit M
Torque limitation at motor
operation
0.0 ... 180.0 % motor Mn
150.0 %
YES
1.44 T limit G
Torque limitation at
generator operation
0.0 ... 180.0 % motor Mn
150.0 %
YES
Frequency converter MFC710 type with OP-11 control panel. TWERD Power Electronics
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