c Application | TOSHIBA INVERTER | TOSVERT VF series
Toshiba Toshiba Schneider Inverter Corporation

Offset printing machines [Printing machines]

 Application samples

In case of offset printing machines, motors can be controlled by the inverter using the following methods:
- Speed adjustment and run/stop operation through the communication port
- Emergency stop signal input

  Setting table for inverters (VF-AS1)

The communication settings depend on their communication protocols.
Please refer each instruction and function manual.
The following table is for V3 motor.

Title Function Setting range Recommended setting
V/f control mode selection 0: Constant torque characteristics ~
8: PG feedback vector control
Base frequency 1 25 ot 500 Hz 52
Base frequency voltage 1 200V input model: 50 to 330 V
400V input model: 50 to 660 V
Electronic thermal protection characteristic selection 0 to 7 4
Dynamic braking selection 0 to 2 1 (Enabled)
Dynamic braking resistance 0.5 to 1000 ohm Depends on resistor
Dynamic braking capacity 0.01 to 600 kW Depends on resistor
Input terminal function selection 7 (S3) 0 to 135 20
Starting frequency setting 0.0 to 10.0 Hz 0.0
Base frequency voltage selection 0 to 3 1
Number of PG input pulses 12 to 9999 1000
Motor rated capacity (motor name plate) 0.10 to 500.0 kW Depends on the motor
Motor rated current (motor name plate) 0.1 to 2000 A Depends on the motor
Motor rated rotational speed (motor name plate) 100 to 60000 min-1 Depends on the motor
OL reduction starting frequency 0.0 to 60.0 Hz 0

  Auto-tuning function (VF-AS1)

After setting these parameters, please perform the following steps.

(1) Set F400(Auto-tuning 1) = 4(Motor constant auto calculation).
(2) Connect the motor wiring.
(3) Set F400 = 2(Continue operation after auto-tuning).
(4) Turn on the start signal.

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