3.3.2.7
Differential-pressure switch
The differential-pressure switch monitors the independent air cooling and the associated fans.
The operating range lies between 100 and 1000 Pa. The differential-pressure switch measures
the pressure drop across the heat sink elements. The pressure drop is then compared with the
set response threshold. When the fans are in operation and draw the required volumetric flow
through the heat sink elements, the response threshold must have been exceeded.
See also
Replacing the differential pressure monitor (Page 90)
3.3.2.8
Door limit switches
Door limit switches monitor the doors. The circuit breaker opens when a door is opened.
The electromechanical door interlocking system prevents access to the power unit while
operational. The following conditions must be fulfilled in order to open the doors: For additional
information, see Chapter "Opening the device (Page 78)".
3.3.2.9
Power supply unit
Two power supply units are installed in the power unit of the cycloconverter These power
supply units supply power to the current converters.
Figure 3-5
Power supply units
Description
3.3 Power unit
SINAMICS SL150 6SL38600UL432AA0Z
32
Operating Instructions Rev.201910281433 EXAMPLE
Содержание SINAMICS SL150
Страница 2: ...28 10 2019 14 33 V18 00 ...
Страница 10: ...Table of contents SINAMICS SL150 6SL38600UL432AA0Z 10 Operating Instructions Rev 201910281433 EXAMPLE ...
Страница 70: ...Commissioning SINAMICS SL150 6SL38600UL432AA0Z 70 Operating Instructions Rev 201910281433 EXAMPLE ...
Страница 104: ...Spare parts SINAMICS SL150 6SL38600UL432AA0Z 104 Operating Instructions Rev 201910281433 EXAMPLE ...
Страница 116: ...Index SINAMICS SL150 6SL38600UL432AA0Z 116 Operating Instructions Rev 201910281433 EXAMPLE ...
Страница 117: ......
Страница 120: ......
Страница 122: ......