14
TOSHIBA
Major
Control System
Sinusoidal PWM control
Control
Output voltage regulation Same as power line.
Specifications
Output frequency range
0.5 to 320 Hz (0.5 to 80Hz default setting)*. Maximum frequency
is adjustable between 30 and 320 Hz.
Frequency setting
0.1Hz input from the operating panel, 0.2 Hz analog
resolution
input (@ maximum frequency of 100 Hz).
Frequency accuracy
Analog setting: ±0.5% of the maximum output frequency or less
@ 25°C±10°C,
Digital setting: ±0.01% of the maximum output frequency or less
@ -10°C to +50°C
Voltage/frequency
Constant V/f, variable torque mode, sensorless vector control
characteristics
mode, automatic torque boost mode, base frequency adjustment
(25 to 320Hz), and torque boost adjustment (0 to 30%).
Overload current rating
150%, 60 seconds
Frequency setting signal
Built-in potentiometer on the front panel, external potentiometer
(1k ohm to 10k ohm variable resistor connectable), 0 to 10Vdc
(input impedance: VIA = 30.55k ohm, VIB=30k ohm),
4 to 20mAdc (input impedance = 400 ohm), and optional
characteristics (gain,bias) can be preset by 2-point setting
PI control
Proportional gain, integral gain adjustments.
Operation
Start frequency
Adjustable between 0 and 10Hz
functions
Frequency jump
Three points (by setting jump frequencies and band widths)
PWM carrier frequency
Adjustable between 2.2 and 12kHz (default = 12kHz)
Accel/decel time
0.1 to 3600 secs, accel/decel time 1 or 2 selectable, S1 and S2
accel/decel pattern selectable
Jogging run
Jog run from panel with JOG mode selection. Terminal block
operation possible with parameter settings (see page 37).
Preset speed operation
Set fre15 preset speeds possible with open/closed
combinations of SS1, SS2, SS3, SS4 and CC
Retry operation
A maximum of ten automatic retries are selectable (see page 38)
Retry will occur immediately after a self evaluation of the main
circuit is completed.
Braking
Externally connected braking resistor (optional)
DC braking
Braking start frequency (0 to max frequency), braking level
(0 to 100%), braking time (0 to 20 seconds).
Output voltage regulation Drive can be programmed to set the maximum output voltage,
float with the input voltage, or set the maximum output voltage to
the voltage sensed at power-up.
Input terminal functions
Forward and reverse input signals, preset speed select input
signals, reset input signals, and etc (see page 37).
Output terminal functions Low-speed detection output signals, speed reached output
signals, and etc.
Fault signal
1c contact output (250 Vac, 30 Vdc - 2A resistive load,
250 Vac, 30 Vdc - 1.5A inductive load, cosØ =0.4
Output for frequency
Analog output (1 mA dc full scale ammeter or 7.5 Vdc, 1mA
counter or ammeter
full scale DC ammeter or rectifying AC voltmeter, 225% current
max., 1mA DC, 7.5 Vdc full scale)(see page 33)
Standard Specifications
