Hitachi SJ300-037HFE 사용자 설명서

SJ300 Inverter

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The following table (continued on next page) applies to all SJ300 inverter models.

Protective enclosure  *1, *11

IP20 (NEMA 1)

Control method

Line-to-line sine wave pulse-width modulation (PWM) control

Output frequency range  *4

0.1 to 400 Hz

Frequency accuracy

Digital command: ± 0.01% of the maximum frequency
Analog command: ± 0.2%  (25

°C  ± 10°C)

Frequency setting resolution

Digital: ± 0.01 Hz;  Analog: (max. frequency)/4000, [O] terminal: 12-bit 0 to 10V;
[OI] terminal: 12-bit, 4-20mA; [O2] terminal: 12-bit  -10 to +10V

Volt./Freq. characteristic  *5

V/F optionally variable (30 to 400Hz base frequency), V/F control (constant torque, 
reduced torque), sensorless vector control

Speed fluctuation

± 0.5% (sensorless vector control)

Overload capacity (output current)

150% for 60 seconds, 200% for 0.5 seconds

Acceleration/deceleration time

0.01 to 3600 sec., (linear curve profiles, accel./decel. selection), two-stage accel./decel.

Input
signal

Freq.
setting

Operator keypad

Up and Down keys / Value settings

Potentiometer

Analog setting via potentiometer on operator keypad

External signal  *8

0 to 10 VDC (input impedance 10k Ohms), 4 to 20 mA (input impedance 250 Ohms), 
Potentiometer (1k to 2k Ohms, 2W)

Serial port

RS485 interface

FW/RV 
Run

Operator panel

Run key / Stop key (change FW/RV by function command)

External signal

FW Run/Stop (NO contact), RV set by terminal assignment (NC/NO),
3-wire input available 

Intelligent Input
terminals (assign eight 
functions to terminals)

RV (reverse run/stop), CF1~CF4 (multi-speed select), JG (jogging), DB (external DC 
braking), SET (set 2nd motor data), 2CH (2-stage accel./decel.), FRS (free-run stop), 
EXT (external trip), USP (unattended start protection), CS (commercial power source), 
SFT (software lock), AT (analog input voltage/current select), SET3 (set 3rd motor 
data), RS (reset inverter), STA (start, 3-wire interface), STP (stop, 3-wire interface),
F/R (FW/RV 3-wire interface), PID (PID ON/OFF), PIDC (PID reset), CAS (control 
gain setting), UP (remote control Up function, motorized speed pot.), DWN (remote 
control Down function, motorized speed pot.), UDC (remote control data clearing), 
OPE (Operator control), SF1-SF7 (Multispeed bits 0-7), OLR (Overload limit change), 
TL (torque limit enable), TRQ1 (torque limit selection bit 1, LSB), TRQ2 (torque limit 
selection bit 2, MSB), PPI (Proportional / Proportional/Integral mode selection), BOK 
(Brake confirmation signal), ORT (Orientation – home search), LAC (LAC: LAD 
cancel), PCLR (Position deviation reset), STAT (pulse train position command input 
enable), NO (not selected)

Thermistor input

One terminal (PTC characteristics)

Output
signal

Intelligent Output terminals
(assign six functions to five 
open collector outputs and 
one relay NO-NC contact)

RUN (run signal), FA1 (Frequency arrival type 1 – constant speed), FA2 (Frequency 
arrival type 2 – over-frequency), OL (overload advance notice signal 1), OD (Output 
deviation for PID control), AL (alarm signal), FA3 (Frequency arrival type 3 – at-
frequency), OTQ (over-torque signal), IP (Instantaneous power failure signal), UV 
(Under-voltage signal), TRQ (In torque limit), RNT (Run time over), ONT (Power-ON 
time over), THM (thermal alarm), BRK (Brake release signal), BER (Brake error 
signal), ZS (Zero speed detect), DSE (speed deviation maximum), POK (Positioning 
completion), FA4 (Frequency arrival type 4 – over-frequency 2), FA5 (Frequency arrival 
type 5 – at-frequency 2), OL2 (Overload notice advance signal 2), Terminals 11-13 or 
11-14 automatically configured as AC0-AC2 or AC0-AC3 per alarm code output selec-
tion)

Intelligent monitor output 
terminals

Analog voltage monitor, analog current monitor (8-bit resolution), and PWM output, on 
terminals [AM], [AMI], [FM]

Display monitor

Output frequency, output current, motor torque, scaled value of output frequency, trip 
history, I/O terminal condition, input power, output voltage