Item |
Specification |
Principal
control
functions |
Control system |
Sinusoidal PWM control |
Output voltage range Note1) |
Adjustable within the range of 50 to 330V (240V class) and 50 to 660V (500V class) by correcting the supply voltage |
Output frequency range |
0.1 to 500.0Hz, default setting: 0.5 to 80Hz, maximum frequency: 30 to 500Hz |
Minimum setting steps of frequency |
0.1Hz: analog input (when the max. frequency is 100Hz), 0.01Hz: Operation panel setting and communication setting. |
Frequency accuracy |
Digital setting: within +/-0.01% of the max. frequency (-10 to +60 degreeC)
Analog setting: within +/-0.5% of the max. frequency (25 degreeC +/-10 degreeC) Note 5) |
Voltage/frequency characteristics |
V/f constant, variable torque, automatic torque boost, vector control, automatic energy-saving. dynamic automatic energy-saving control, PM motor control,
V/F 5-point setting, Auto-tuning. Base frequency (20-500Hz) adjusting to 1 & 2, torque boost (0-30%) adjusting to 1 & 2, adjusting frequency at start
(0.1-10Hz) |
Frequency setting signal |
Setting dial on the front panel, external frequency potentiometer (connectable to a potentiometer with a rated impedance of 1k-10k ohm), 0-10Vdc /
-10-+10Vdc (input impedance: 30k ohm), 4-20mAdc (Input impedance: 250 ohm). |
Terminal board base frequency |
The characteristic can be set arbitrarily by two-point setting. Possible to set: analog input (VIA, VIB, VIC). |
Frequency jump |
Three frequencies can be set. Setting of the jump frequency and the range. |
Upper- and lower-limit frequencies |
Upper-limit frequency: 0 to max. frequency, lower-limit frequency: 0 to upper-limit frequency |
PWM carrier frequency |
Adjustable range of 2.0k to 16.0kHz (default: 4.0kHz). |
PID control |
Setting of proportional gain, integral gain, differential gain and control wait time. Checking whether the amount of processing amount and the amount of
feedback agree. |
Operation
specifications |
Acceleration/deceleration time |
Selectable from among acceleration/deceleration times 1 & 2 & 3 (0.0 to 3600 sec.). Automatic acceleration/deceleration function. S-pattern acceleration/
deceleration 1 & 2 and S-pattern adjustable. Control of forced rapid deceleration and dynamic rapid deceleration. |
DC braking |
Braking start-up frequency: 0 to maximum frequency, braking rate: 0 to 100%, braking time: 0 to 25.5 seconds, emergency DC braking, motor shaft fi xing
control. |
Dynamic Braking Drive Circuit |
Control and drive circuit is built in the inverter with the braking resistor outside (optional). |
Input terminal function
(programmable) |
Possible to select from among about 110 functions, such as forward/reverse run signal input, jog run signal input, operation base signal input and reset
signal input, to assign to 8 input terminals. Logic selectable between sink and source. |
Output terminal functions
(programmable) |
Possible to select from among about 150 functions, such as upper/lower limit frequency signal output, low speed detection signal output, specifi ed speed
reach signal output and failure signal output, to assign to FL relay output, open collector output terminal, and RY output terminals. |
Forward/reverse run |
The RUN and STOP keys on the operation panel are used to start and stop operation, respectively. Forward/reverse run possible through communication
and logic inputs from the terminal block. |
Jog run |
Jog mode, if selected, allows jog operation from the terminal board and also from remote keypad. |
Preset speed operation |
Base frequency + 15-speed operation possible by changing the combination of 4 contacts on the terminal board. |
Retry operation |
Capable of restarting automatically after a check of the main circuit elements in case the protective function is activated. 10 times (Max.) (selectable with a
parameter) |
Various prohibition settings /
Password setting |
Possible to write-protect parameters and to prohibit the change of panel frequency settings and the use of operation panel for operation, emergency stop
or resetting. Possible to write-protect parameters by setting 4 digits password and terminal input. |
Regenerative power ride-through
control |
Possible to keep the motor running using its regenerative energy in case of a momentary power failure (default: OFF). |
Auto-restart operation |
In the event of a momentary power failure, the inverter reads the rotational speed of the coasting motor and outputs a frequency appropriate to the
rotational speed in order to restart the motor smoothly. This function can also be used when switching to commercial power. |
Light-load high-speed operation |
Increases the operating effi ciency of the machine by increasing the rotational speed of the motor when it is operated under light load. |
Drooping function |
When two or more inverters are used to operate a single load, this function prevents load from concentrating on one inverter due to unbalance. |
Override function |
External input signal adjustment is possible to the operation frequency command value. |
Relay output signal |
1c- contact output and 1a- contact output: Note2)
Maximum switching capacity : 250Vac-2A (At resistive load cos=1), 30Vdc-1A, 250Vac-1A (cos=0.4)
Minimum permissible load : 5Vdc-100mA, 24Vdc-5mA |
Protective
function |
Protective function |
Stall prevention, current limitation, over-current, output short circuit, over-voltage, over-voltage limitation, undervoltage, ground fault, detection, input
phase failure, output phase failure, overload protection by electronic thermal function, armature over-current at start-up, load side over-current at start-up,
over-torque, undercurrent, overheating, cumulative operation time, life alarm, emergency stop, various pre-alarms |
Electronic thermal characteristic |
Switching between standard motor and constant-torque VF motor, switching between motors 1 & 2, setting of overload trip time, adjustment of stall
prevention levels 1 & 2, selection of overload stall |
Reset function |
Function of resetting by closing contact 1a or by turning off power or the operation panel. This function is also used to save and clear trip records. |
Display
function |
Alarms |
Over-current, overvoltage, overload, overheat, communication error, under-voltage, setting error, retry in process, upper/lower limits |
Causes of failures |
Over-current, overvoltage, overheat, output short-circuit, ground fault, overload on inverter, arm overcurrent at start-up, overcurrent on the load side
at start-up, CPU fault, EEPROM fault, RAM fault, ROM fault, communication error. (Selectable: dynamic braking resistor overload, emergency stop,
under-voltage, small current, over-torque, motor overload, input phase failure, output phase failure) |
Monitoring function |
Operation frequency, operation frequency command, forward/reverse run, output current, input voltage (DC detection), output voltage, torque, load factor
of inverter, input power, output power, information on input terminals, information on output terminals, version of CPU1, version of CPU2, PID feedback
value, frequency command (after compensation), causes of past trips 1to 8, parts replacement alarm, cumulative operation time, overload and region
setting |
Past trip monitoring function |
Stores data on the past eight trips: number of trips that occurred in succession, operation frequency, opreation frequency command, forward/reverse run,
output current, input voltage (DC detection), output voltage, information on input terminals, information on output terminals, and cumulative operation time
when each trip occurred. |
Output for frequency meter |
Analog output for meter: 1mA dc full-scale dc ammeter
0 - 20mA (4 to 20mA) output: DC ammeter (allowable load resistance: Less than 750 ohm)
0 - 10V output: DC voltmeter (allowable load resistance: Over 1k ohm)
Resolution: Maximum of 1/1000 |
4-digit 7-segments LED |
Frequency: inverter output frequency.
Alarm: stall alarm "C", overvoltage alarm "P", overload alarm "L", overheat alarm "H". communication alarm "T"
Status: inverter status (frequency, cause of activation of protective function, input/output voltage, output current, etc.)
and parameter settings.
Free-unit display: arbitrary unit (e.g. rotating speed) corresponding to output frequency. |
Indicator |
Lamps indicating the inverter status by lighting, such as RUN lamp, MON lamp, PRG lamp, % lamp, Hz lamp, EASY lamp, CANopen lamp, NET lamp. The
charge lamp indicates that the main circuit capacitors are electrically charged. |
Environments |
Location of use |
Indoors; not exposed to direct sunlight, corrosive gas, explosive gas, fl ammable gas, oil mist, or dust; and vibration of less than 5.9m/s2 (10 to 55Hz). |
Elevation |
3000 m or less (current reduction required over 1000 m) Note 3) |
Ambient temperature |
-10 to +60 degreeC Note 4) |
Storage temperature |
-25 to +70 degreeC |
Relative humidity |
5 to 95% (free from condensation and vapor). |