Mitsubishi Electric FR-A700 EC, Инструкция по эксплуатации

Страница: 775 / 826

Appendix Common specifications
FR-A700 EC A - 5
A.3 Common specifications
FR-A 740 Specification
Control specification
Control system
Soft-PWM control/high carrier frequency PWM control (selectable from among V/F control,
advanced magnetic flux vector control and real sensorless vector control) / vector control (when
used with option FR-A7AP)
Modulation control Sine evaluated PWM, Soft PWM
Carrier frequency 0.2–400 Hz
Frequency setting
resolution
Analog input
0.015 Hz/0–50 Hz (terminal 2, 4: 0–10 V/12 bit)
0.03 Hz/0–50 Hz/(terminal 2, 4: 0–5 V/11 bit, 0–20 mA /11 bit, terminal 1: 0–±10 V/12 bit)
0.06 Hz/0–50 Hz (terminal 1: 0–±5 V/11 bit)
Digital input 0.01Hz
Frequency accuracy
Analog input ±0.2% of the maximum output frequency (temperature range 25°C ± 10°C)
Digital input ±0.01% of the set output frequency
Voltage/frequency characteristics
Base frequency adjustable from 0 to 400Hz;
selection between constant torque, variable torque or
optional flexible 5-point V/f characteristics
Starting torque
200 % 0.3 Hz (0.4 kVA to 3.7 kVA),
150 % 0.3 Hz (5.5 kVA or more) under real sensorless vector control or vector control
Torque boost Manual torque boost
Acceleration/deceleration time 0; 0.1 to 3600 s (can be set individually)
Acceleration/deceleration characteristics
linear or S-pattern acceleration/deceleration mode,
backlash measures acceleration/deceleration can be selected
DC injection brake
Operating frequency (0–120 Hz), operating time ( 0–10 s)
and operating voltage (0–30 %) can be set individually.
Stall prevention Responses threshold 0–220 %, user adjustable, also via analog input
Torque limit level Torque limit value can be set (0 to 400% variable)
Control signals for operation
Frequency setting
values
Analog input
Terminal 2, 4: 0 to 5 V DC, 0 to 10 V DC, 0/4 to 20 mA
Terminal 1: –5 to +5V DC, –10 to +10 V DC
Digital input
Four-digit BCD or 16-bit binary using the setting dial of the operation panel or parameter unit
(when used with the option FR-A7AX)
Start signal
Forward and reverse rotation or start signal automatic
self-holding input (3-wire input) can be selected.
Input signals
You can select any twelve signals using Pr. 178 to Pr. 189 (input terminal function selection) from
among multi speed selection, remote setting, stop-on-contact, second function selection, third
function selection, terminal 4 input selection, JOG operation selection, selection of automatic
restart after instantaneous power failure, flying start, external thermal relay input, inverter opera-
tion enable signal (FR-HC/FR-CV connection), FR-HC connection (instantaneous power failure
detection), PU operation/external inter lock signal , external DC injection brake operation start,
PID control enable terminal, brake opening completion signal, PU operation/external operation
switchover, load pattern selection forward rotation reverse rotation boost, V/F switching, load tor-
que high-speed frequency, S-pattern acceleration/deceleration C switchover, pre-excitation, out-
put stop, start self-holding selection, control mode changing, torque limit selection, start-time
tuning start external input, torque bias selection 1, 2 , P/PI control switchover, traverse function
selection, forward rotation command, reverse rotation command, inverter reset, PTC thermistor
input, PID forward reverse operation switchover, PU-NET operation switchover, NET-external ope-
ration switchover, and command source switchover, conditional position pulse train sign ,
conditional position droop pulse clear
Pulse train input 100 kpps
Operational functions
Maximum/minimum frequency setting, frequency jump operation, external thermal relay input
selection, polarity reversible operation, automatic restart after instantaneous power failure opera-
tion, electronic bypass operation, forward/reverse rotation prevention, remote setting, brake
sequence, second function, third function, multi-speed operation, original operation continuation
at instantaneous power failure, stop-on-contact control, load torque high speed frequency con-
trol, droop control, regeneration avoidance, slip compensation, operation mode selection, offline
auto tuning function, online auto tuning function, PID control, computer link operation (RS-485),
motor end orientation , machine end orientation , pre-excitation, notch filter, machine
analyzer , easy gain tuning, speed feed forward, and torque bias
Tab. A-3: Common specifications