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E6581381
L-2
12
■ Common specification
Item Specification
Control system Sinusoidal PWM control
Rated output voltage Adjustable within the range of 50 to 660V by correcting the supply voltage (not adjustable above the input
voltage)
Output frequency range 0.5 to 200.0Hz, default setting: 0.5 to 80Hz, maximum frequency: 30 to 200Hz
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°C)
Analog setting: within ±0.5% of the max. frequency (25°C ±10°C)
Voltage/frequency
characteristics
V/F constant, variable torque, automatic torque boost, vector control, automatic energy-saving, PM motor
control. Auto-tuning. Base frequency (25 - 200Hz) adjusting to 1 or 2, torque boost (0 - 30%) adjusting to
1 or 2, adjusting frequency at start (0.5 - 10Hz)
Frequency setting
signal
External frequency potentiometer (connectable to a potentiometer with a rated impedance of 1 - 10k
Ω), 0
- 10Vdc (input impedance: VIA/VIB=30k
Ω, 4 - 20mAdc (Input impedance: 250Ω).
Terminal board base
frequency
The characteristic can be set arbitrarily by two-point setting. Possible to set individually for three
functions: analog input (VIA and VIB) and communication command.
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 within a range of 6.0 to 16.0Hz (default: 8 or 12kHz).
Principal control functions
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.
Acceleration/decelerati
on time
Selectable from among acceleration/deceleration times 1 and 2 (0.0 to 3200 sec.). Automatic
acceleration/deceleration function. S-pattern acceleration/deceleration 1 and 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 20
seconds, emergency DC braking
Input terminal function
(programmable)
Possible to select from among 57 functions, such as forward/reverse run signal input, operation base
signal input and reset signal input, to assign to 4 input terminals. Logic selectable between sink and
source.
Output terminal
functions
(programmable)
Possible to select from among 58 functions, such as upper/lower limit frequency signal output, low speed
detection signal output, specified speed reach signal output and failure signal output, to assign to FL
relay output, RY output terminals.
Forward/reverse run The RUN and STOP keys on the operation panel are used to start and stop operation, respectively. The
switching between forward run and reverse run can be done from one of the three control units: operation
panel, terminal board and external control unit.
Preset speed operation Base frequency + 7-speed operation possible by changing the combination of 3 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
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.
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.
Drooping function The motor is allowed to “slip” according to the load torque current.
Operation specifications
Failure detection signal 1c-contact output: (250Vac-0.5A-cosФ=0.4)
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