______ HSD __________________________________________________________________________________
4 TECHNICAL SPECIFICATIONS
4.1 GENERAL VIEWS AND OVERALL DIMENSIONS
See data sheet
Please contact HSD Customer care service if you need more information (see paragraph 2.6)
4.2 TECHNICAL SPECIFICATIONS AND PERFORMANCE.
WHEN SETTING MAXIMUM CONTINUOUS INVERTER CURRENT, ALWAYS SET THE NOMINAL CURRENT VALUE GIVEN
ON THE MOTOR DATA PLATE.
4.3 ELECTROSPINDLE THERMAL PROTECTION
4.3.1 THERMAL SWITCH
The electrospindle is fitted with a bimetallic normally-closed switch is used as a thermal alarm.
The swhitch opens when the temperature reaches a value that is harmful for the electric windings, and closes when the
temperature drops and returns to safe values.
The thermal alarm must be connected to the Numerical Control, which in turn must stop the machining operations as
quickly as possible and stop the rotation of the shaft of the electrospindle, if the switch opens.
Thermal switch technical specifications:
Switches load
AC p.f. = 1,0
2,5 A / 250 V
AC p.f. = 0,6
1,6 A / 250 V
DC ohmical load
1,6 A / 24 V
DC ohmical load
1,25 A / 48 V
Max load*
Nominal temperature (NST)
Standard tolerance
6,3 A / 250 VA
(min. 2.000 cicles)
50°C – 200°C1)
5K steps
±5°K2)
Letter B code
Restore temperature
40 ± 15K
(Below NST)
Ambient temperature
T180
Switches resistance
< 50 mΩ
Switches response
< 1 ms
Ground insulation
2 kV
Drowing strength
PTI 175
Only W and L versions
Protection class
I
IP
0
Pressure strength
>600 N
1) approvation VDE 50°-180°C
2) other toleranes ±2.5 K (=A) - ±7.5 K (=C) - ±10 K (=D)
* not approved
IF THE SHAFT BLOCKS WHILE THE TOOL IS STILL BEING PUSHED AGAINST THE PIECE BEING WORKED, THE BEARINGS OF THE
SPINDLE COULD BREAK; IF YOU WAIT TOO LONG BEFORE REMOVING THE TOOL FROM THE PIECE AND STOPPING THE
ROTATION, THE STATOR COULD BE BURNT.
Y580100001 rev.03 ____________________________________________________________________ 10
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