7 Operation and regulation
142
HSD S.p.A. © - h0106k01a.fm120718
Thermal alarm temperature thresholds
There are pre-alarm temperature thresholds and alarm temperature thresholds, which must be
taken into consideration.
The pre-alarm thresholds signal excessive heating, and thus a malfunction that must be kept
under control and dealt with as quickly as possible.
Alarm thresholds, on the other hand, must never be exceeded as they indicate a serious
malfunction. When the alarm threshold is reached, the electrospindle must be stopped straight
away and left to cool down.
Respect the temperature thresholds indicated by the manufacturer.
Technical characteristics of the bimetallic switch
MACHINE STOP
Thermal probe
position
Type
Pre-alarm
thresholds
Alarm thresholds
Motor / stator
NC bimetal switch
not defined*
*
Pre-alarm thresholds cannot be detected with a bimetallic switch.
OFF
(switch open)
Motor / stator
KTY84-130
110 °C
130 °C
Motor / stator
PTC 130
110 °C
130 °C
Motor / stator
PT 1000
110 °C
130 °C
Front bearings
PT 100
55 °C
65 °C
Type
NC (normally closed)
Power supply
48 V
DC
MAX
Current
1.6 A MAX
Switching cycles
10000 Cycles
Contact interruption time
< 1 ms
Contact resistance (according to MIL R 5757)
< 50 m
:
Isolation voltage
2 kV
Содержание ES779
Страница 2: ......
Страница 4: ...Information about the publication 4 HSD S p A H5801H0118 fm120718 ...
Страница 12: ...Table of contents 12 HSD S p A H5801H0118TOC fm120718 ...
Страница 13: ...Preliminaries ...
Страница 14: ......
Страница 27: ...Descriptions ...
Страница 28: ......
Страница 88: ...3 Technical specifications and main parts 88 HSD S p A h0102k01a fm120718 ...
Страница 121: ...Adjustment and Maintenance ...
Страница 122: ......
Страница 186: ...9 Replacing components 186 HSD S p A h0108k01a fm120718 ...
Страница 187: ...Appendices ...
Страница 188: ......
Страница 196: ...C Disposal 196 HSD S p A h0109k00a fm120718 ...
Страница 199: ......