Appendix C – Table of MFC710 frequency converter's parameters
Appendix C – Table of MFC710 frequency converter's parameters
Numbers of parameters which are instanced in the appendix are numbers presented on the display of the
control panel. In case of reading/writing by means of RS connection, each parameter is read/written using the specified
register. For example the register 42002 corresponds to parameter 2.2 there, the register 44030 corresponds to
parameter 4.30, etc.
Parameters of GROUP 0. Variables of process - only for reading. It is possible to set the control panel to display value
of any of these parameters without need to enter mode of parameters viewing (section 3).
Parameters
in group 0
Name
Description
0.1
n Process
Speed of process. It depends on current rotation speed of the motor. It is possible to set up
scale, measurement unit and number of decimal places for this parameter using parameters
4.25, 4.26 and 4.27.
0.2
n Motor
Current rotation speed of the motor in rotations per one minute [rpm]
0.3
n Ref.
Value of the referenced rotation speed [rpm]
0.4
f Out
Current output frequency of the converter [Hz]
0.5
f Ref.
Referenced frequency [Hz].
0.6
Mot. torque
The torque of the motor compared to the nominal torque [%]
0.7
Mot. cur.
Average value of current in windings of the motor [A]
0.8
Mot. volt.
An output voltage AC of the converter [V] (voltage of the motor) – interfacial voltage
0.9
Mot. temp.
Calculated relative temperature of the motor [%]
0.10
DC volt.
Voltage of the DC intermediaries circuit of the converter [V]
0.11
Mains volt.
Interfacial AC voltage the supply grid powering the converter [V] - calculated from Udc
0.12
Out. pow.
Current output power of the converter at [kW]
0.13
Energy
Value of energy which has been transferred to the motor from the time of switching on the
converter or from the time of a cancellation of parameter 3.6 [kWh].
0.14
Ia cur.
RMS current of a phase A of the motor [A]
0.15
Ib cur.
RMS current of a phase B of the motor [A]
0.16
Ic cur.
RMS current of a phase C of the motor [A]
0.17
Pow. fact.
Output power factor
0.18
Psi st.
Stator stream [Wb]
0.19
Encoder n
Encoder speed [rpm]
0.20
Hts.1 temp.
0.21
Hts.2 temp.
0.22
Hts.3 temp.
Temperature of separate parts of the converter’s heatsink (if it is divided) [°C]
0.23
Hts. temp.
Maximum of parameters 0.20, 0.21, 0.22 [°C]
0.30
PID ref.
Value of current referencing-unit of the PID controller [%]
0.31
PID In.
Current input value of the PID controller [%]
0.32
PID error
Error of the PID controller [%]
0.33
PID out.
Current output value of the PID controller [%]
0.34
Pumps state
State of operation the Control unit of Pumps Group
0.35
ON time
Quantity of hours of converter's operation [h].
0.36
Y.M.D date
Current date – only drives with optional RTC clock
0.37
h:m time
Current time – only drives with optional RTC clock
0.38
Dry end time
Time remaining until the end of motor windings drying process [in minutes]
0.40
In.A0
Value of an analog input 0 [%]
0.41
In.A1
Value of an analog input 1 [%]
0.42
In.A2
Value of an analog input 2 [%]
0.43
Out A1
Value of an analog output 1 [%]
0.44
Out A2
Value of an analog output 2 [%]
0.45
Ref. A0
Value of the analog referencing-unit 0 [%]
0.46
Ref. A1
Value of the analog referencing-unit 1 [%]
0.47
Ref. A2
Value of the analog referencing-unit 2 [%]
1) Parameter is available from software version 12.63
Frequency converter MFC710 type with OP-11 control panel. TWERD Power Electronics
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