Tiger 370 CNC--MR, Use And Maintenance Manual

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9--1
Cutting speed and
choice of tools
The cutting speed depends on the disk rotation speed and supply speed. This
chapter illustrates the speed tolerance of the basic version of the machine.
Cutting speed
Basic version
The inverter is an electronic instrument fitted to the TIGER 370 CNC---MR for
varying spindle motor rpm. This device facilitates the operator’s task to execute
special cuts, by adapting the rotation speed of the tool to the specific material.
Blade use can thus be optimised, inasmuch as a blade not especially suitable for
cutting a certain material can be adjusted all the same to the task, and premature
wear is avoided.
The basic version, with 4---pole motor and inverter, has this range of cutting
speeds:
H
15
÷
150 rpm.
The speeds can be set on the control panel via a potentiometer.
The speeds can be set on the control panel via a
potentiometer.
Inverter technical specifications
Protection rating
IP 31
Vibration and shock resi-
stance (EN50178)
0.6 gn from 10 to 50 Hz
2 gn from 50 to 150 Hz
Max. relative humidity
93% without condensation or drop--forming
Acceptable Temperature
Range (EN 50178)
For warehouse storing: from --25 ° C to +65 ° C For ope-
rating purposes: from --10 ° C to +40 ° C
Max. altitude
1000mt. with no derating
Supply
-- single phase: 200V -- 15% to 240V + 10%
-- three phase: 200V -- 15% to 230V + 10%
380V -- 15% to 460V + 10%
Frequency 50/60 Hz ± 5%
Output voltage
Maximum voltage equal to the supply voltage
Output frequency range 0,5 a 320 Hz
Max. transients 150% of electronic speed control rated current for 60
secs.
Frequency resolution
-- Display: 0.1 Hz
-- Analog inputs: 0.1 Hz per 100 Hz max.
Switching frequency
Adjustable from 2.2 to 12 Hz max.
9