Toshiba Tosvert VF-A5 Bedienungsanleitung PDF herunterladen (Seite 97)

General specifications

Control method Sinusoidal PWM control

Output voltage regulation

Man circuit voltage feedback control. (Automatic regulation, “fixed* and “control off“

selections possible)

Output frequency range

0.01 to 400Hz, set to 0.01 to 80Hz by default, max. frequency adjustable from 30 to 400Hz:

Note 2)

Frequency setting resolution

0.01Hz: operation panel input (60Hz base), 0.1Hz: analog input (60Hz base, 12-bit/Oto

lOVdc) 0.01Hz: communication input (50Hz base)

Frequency precision

♦0.2% of the max. output frequency (25°C±10°C): analog input, ±0.01 (25°C±10°C):

digital input

Voltage/frequency characteristics

Constant V/f, variable torque, automatic torque boost, voltage vector control and automatic

energy-saving control/maximum voltage frequency adjustment (25 to 400Hz), torque boost

adjustment (0 to 30Hz), start-up frequency adjustment (0 to 10Hz), end frequency

adjustment (0 to 30Hz)

Frequency setting signals

3kii potentiometer (1 to lOKil potentiometer connection aiso possible)

0 to lOVdc (Input impedance 23n: 33kil), 0 to ±10Vdc (23n: STkil), 0 to ±5Vdc (2n: 34kil)

4 to 20mA (Zin: soon)

Terminal block reference frequency

inputs

2 sources can be set from a total of five types, including analog input (RR, IV, RX), pulse

input and binary input.

Frequency jump

Can be set in three places, jump frequency and band setting

Upper/Io\wer limit frequencies

Upper limit frequency: 0 to max. frequency,

Ljower limit frequency: 0 to upper limit frequency

PWM carrier frequency selection

Adjustable between 3 and 17kHz (18.5kW to 75kW adjustable between 3 and 15kHz)

PID control

Proportional gain, integral gain, anti-hunting gain, lag-time constant adjustments

Acceleration/deceieration times

0.1 to 6000 sec., acceleration/deceieration times #1 and #2 selection,

acceleration/deceieration pattern selection

DC injection braking

Braking starting frequency adjustment (0 to 120Hz), braking current adjustment (0 to 100%),

braking time adjustment (0 to 10 sec.), emergency stop braking function, motor shaft

stationary control function

Fonvard/reverse run

Forward run when F-CC “closed“, reverse run when R-CC “closed“, reverse run when both

“closed“, coast-stop when ST-CC “opened“. Emergency stop from panel or terminal block.

Jog run

Jog run from panel with JOG mode selection. Terminal block operation possibie with

parameter settings.

Preset speed operation: Note 6)

Set frequency + 15 preset speeds possible with open/closed combinations of SSI, SS2,

SS3, SS4 and CC.

Retry

When a protective function activates, after main circuit devices are checked, running

restarts. Settable to a max. of 10 times. Wait time adjustment (0 to 10 sec.).

Soft stall Automatic load reduction control during overload. (Default setting: OFF)

Cooling fan ON/OFF Fan is automatically stopped when not necessary to ensure extended lifetime.

Panel key operation ON/OFF control

Prohibit functions such as reset only or monitor only, etc., can be selected. All key

operations can also be prohibited. A cancel protection function using a password (number)

is also built-in.

Regeneration power ride-through

control

Operation is continued even during momenteiry power failure using regenerative energy

from the motor. (Default setting: OFF)

Auto-restart A coasting motor can be smoothly restarted. (Default setting: OFF)

Simple pattern run

4 groups of 8 patterns each can be set to the 15 preset speed values. A max. of 32 different

patterns can be run. Terminai biock control/repetitive run possible.

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