Features of slicers

Slicers in food machine are cutting machines for some kind of foods.
ex. Meat, vegetables etc.

They carry foods by conveyers, and cut them by rotary cutters.

Mainly, the capacity range of slicers is up to 2.2kW

Merits of inverter drives

Merits of inverter drives

Slicers with inverters have the following merits:
- Tact time improving
- Freely cutting width
- Stable speed with the sensor-less vector control
- 'Emergency stop' without mechanial brakes.
- Possible to use a 3-phase motor with single-phase power supply.
- If you need enclosure models to avoid 'mist' or 'cutting rubbish', we prepare IP54(IP55) models of VF-S11

What is IP(Protective construction)? This code is a standardization by IEC(International Electrotechnical Commission). IP[A][B] A: Solids protection B: Liquids protection Usually, the general purpose inverter is IP20 or IP00 CLASS [A] degree CLASS [B] degree 0 None 0 None 1 The hand or something of 50mm diameter don't invade the inside. 1 Water spray in vertical directions 2 Against solids over 12mm 2 Water spray in vertical directions (+/-15 degree) 3 Against solids over 2.5mm 3 Water spray in vertical directions (+/-60 degree) 4 Against solids over 1mm 4 Water spray in all directions 5 Limited dust ingress 5 Low pressure jets in all directions 6 Total dust protection 6 High pressure jets in all directions 7 Immersion below 1m while 10 minutes 8 Immersion below 1m

Notices

Notices regarding the use of inverter drives

- Motor rating
The capacitt range of the 'Inline duct fan' is small. Sometimes, there is a 100V motor rating. In this case, please change the motor from 100V rating to 3 phase, 200V rating.
(The inverter is designed for 3 phase 200V or 400V motor.)

Selection

In almost all cases, the capacity of the inverter is the same as the motor capacity.
However if you have a fixed acceleration/deceleration time, the inverter capacity should be larger than the motor capacity.

Please confirm your motor's rated current. [Motor's rated current] x 1.05 < [Inverter's rated current] When you connect several motors to one inverter, please confirm the following: [Total motor's rated current] x 1.1 < [Inverter's rated current] In this case, the electric thermal function in the inverter can't protect all motors. Please install an external thermal relay for each motor.

Application samples

In case of 'Slicer', it is usually installed following operation method:
- RUN and STOP by remote control.
- Speed adjustment by analog input(0-10V)
- Stable speed by sensor-less vector control
- Emergency stop

Connection of inveters

In a cutter part, please install a braking resistor for emergency stop.

Connection diagram of inveters (VFS11)

Setting table for inverters (VFS11)

You have to set the motor parameter with sensor-less vector control.

1. Parameter setting

Title	Function	Setting range	Recommended setting
	Command mode selection	0: Remote, 1: Local	0
	Frequency setting mode selection	0: Built-in potentiometer, 1: VIA, 2: VIB ~6	2
	Acceleration time 1	0.0 ~ 3200 sec	depends on your system
	Deceleration time 1	0.0 ~ 3200 sec	depends on your system
	Input terminal function (S3)	0 to 57	11
	Dynamic braking	0: Disabled, 1: Enabled	1
	Selection of emergency stop	0: Coast stop, 1: Deceleration stop, 2: Injection brake	2

2. Parameter setting for sensor-less vector control

Title	Function
	Base frequency [Hz]
	Voltage at base frequency [V]
	Motor rated current [A]
	Motor rated rotation [min-1]

3. Execute 'AU2(Automatic torque-up function) = 2'
This function automatically executes 'Pt' and 'F400'.
Pt(V/f control selection) = 3(Sensor-less vector control)
F400(Auto-tuning) = 2(Enabled)
The auto-tuning is enabled at the first operation command. please be careful of your rotating motor shaft