Chapter:
H.2. Technical data
This User's manual refers to frequency converter MFC1000AcR. Table H.2.1 shows the technical data.
Table H.2.1 – Technical data
Power supply
Voltage U
in
/ freq.
Three-phase power:
3 x 400 V (-15%, +10%), 45..66Hz or
3 x 690 V (-15%, +10%), 45..66Hz
Note: depending on the type of ordered frequency converter
information contained the supply voltage is also placed on the
nameplate.
Output
Output voltage
0 ... U
іn
[V]
Frequency
0,0 ... 400 Hz – U/f operation mode
0,0 ... 100 Hz – Vector operation mode
Frequency
resolution
0.01 Hz
Cooling system
Cooling is made by a forced ventilation from down to up
Control system
Modulator
SVPWM
Operation mode
U/f (linear, exponential),
Vector DTC-SVM without sensor
Vector DTC-SVM with sensor of the rotor position
Switching frequency
1 ... 8 kHz
Default: 2,5 kHz for nominal power when supply voltage is
3x400Vac and 2,0kHz for nominal power when supply voltage is
3x690V
Rotation speed
setting
Analog inputs, control panel, motopotentiometer, PID controller,
communication unit RS-485 and other possibilities.
Resolution of 0.1% for analog inputs or 0.1Hz / 1 rpm for the
control panel and RS.
Control
inputs/outputs
Analog inputs
5 analog inputs (1 voltage mode, 4 voltage-current mode):
AI0: voltage mode 0(2) ... 10V, R
in
≥ 200kΩ;
AI1, AI2, AI3, AI4:
voltage mode 0(2) ... 10V, R
in
≥ 100kΩ;
current mode 0(4)...20mA, R
in
= 250Ω,
Operation mode and polarity are chosen by parameters. Accuracy:
0.5 % of the full range.
Digital inputs
10 digital separated inputs 0/(15...24)V, R
in
≥ 3kΩ.
The possibility of obtaining up to 30 digital inputs on expansion
cards.
Analog outputs
2 analog outputs (voltage-current mode)
AO1, AO2:
Voltage mode 0(2)...10 V
Current mode 0(4)...20 mA
Configured by parameters, accuracy: 0.5%.
The possibility of obtaining up to 10 digital inputs on expansion
cards (2 inputs on one each expansion card).
Digital outputs
6 output relays K1 … K6 – breaking capacity: 250V/1A AC, 24V/1A
DC.
Fully programmable signal source. The possibility of obtaining up
to 5 digital inputs on expansion cards.
Encoder interface
Possibility of direct connection of incremental encoder: 5V DC, line
driver (RS422), <250kHz. Recommended pulse rate: 1024-2048.
Temperature sensor Pt100
Communication
Connectors
RS-485 x2, USB, Ethernet
Communication
protocol
MODBUS RTU. Function 3 (Read Register), function 6 (Write
Register), function 16 (Write Multiple Registers).
Baud-rate
2400, 4800,9600, 19200, 38400, 57600, 115200 bit/s
Application
Remote control of unit operation and programming of all
parameters of the frequency converter.
8
MFC1000AcR, TWERD Power Electronics
