Siemens SIMATIC PCS 7 사용자 설명서
Monitoring and diagnostics
25
Monitoring and diagnostics of drive components
Diagnostics of drives
Hardly any other group of products influences plant availabili-
ty as much as drive engineering. Production comes to a stand-
still when these products fail. Such unscheduled plant down-
times cause expensive production outages, unplanned re-
pairs, and frequently consequential damage.
ty as much as drive engineering. Production comes to a stand-
still when these products fail. Such unscheduled plant down-
times cause expensive production outages, unplanned re-
pairs, and frequently consequential damage.
This is the reason why all drive systems and frequency conver-
ters of the SINAMICS, MASTERDRIVES and MICROMASTER ran-
ges with their associated motors are integrated into the
SIMATIC PCS 7 Maintenance Station. This results in the com-
mon, uniform presentation of maintenance-relevant informa-
tion which permits preventive and prognostic maintenance
strategies.
ters of the SINAMICS, MASTERDRIVES and MICROMASTER ran-
ges with their associated motors are integrated into the
SIMATIC PCS 7 Maintenance Station. This results in the com-
mon, uniform presentation of maintenance-relevant informa-
tion which permits preventive and prognostic maintenance
strategies.
The components report autonomously that maintenance is re-
quired One example are the medium-voltage converters such
as SINAMICS GM150. For instance, by means of a differential
pressure procedure the degree of contamination of the dust
filters is determined.
quired One example are the medium-voltage converters such
as SINAMICS GM150. For instance, by means of a differential
pressure procedure the degree of contamination of the dust
filters is determined.
In the water-cooled version, the analog conductivity measure-
ment continuously monitors operation of the ion exchanger
and outputs an early-warning message when the exchange
capacity decreases. The operating fans for air cooling and the
pumps for water cooling are equipped with operating hour
counters that recommend checking of components on re-
aching a certain number of operating hours.
ment continuously monitors operation of the ion exchanger
and outputs an early-warning message when the exchange
capacity decreases. The operating fans for air cooling and the
pumps for water cooling are equipped with operating hour
counters that recommend checking of components on re-
aching a certain number of operating hours.
The CM 240NE chemistry module can be used in connection
with the SINAMICS G120 Control Unit CU 240S DP-F. The che-
mistry module includes a terminal strip that meets the
NAMUR specifications and thus the essential requirements of
the chemical industry. An ATEX-certified PTC thermistor analy-
sis function for thermal motor protection via PTC thermistors
built into the motor is integrated.
with the SINAMICS G120 Control Unit CU 240S DP-F. The che-
mistry module includes a terminal strip that meets the
NAMUR specifications and thus the essential requirements of
the chemical industry. An ATEX-certified PTC thermistor analy-
sis function for thermal motor protection via PTC thermistors
built into the motor is integrated.
The drive systems are incorporated into the maintenance sta-
tion using the DriveES PCS 7, an add-on package for SIMATIC
PCS 7. DriveES PCS 7 allows Siemens drives to be controlled via
SIMATIC PCS 7 using standard function blocks and operated
and controlled in the operator station by means of faceplates.
tion using the DriveES PCS 7, an add-on package for SIMATIC
PCS 7. DriveES PCS 7 allows Siemens drives to be controlled via
SIMATIC PCS 7 using standard function blocks and operated
and controlled in the operator station by means of faceplates.
IEC motors
The CM240NE chemistry module
The SINAMICS family
Status assessment of high-voltage machines
An established procedure for assessing the condition of
high-voltage machines is partial-discharge diagnostics (PD)
which is carried out as an offline or online measurement
depending on the application. This is an important measu-
re within reliability-based maintenance strategies for large
drives.
high-voltage machines is partial-discharge diagnostics (PD)
which is carried out as an offline or online measurement
depending on the application. This is an important measu-
re within reliability-based maintenance strategies for large
drives.
In order to measure the PD signals, as an option the paten-
ted "SIEMENS Insulator Integrated Coupling Units" can be
installed in high-voltage motors at the factory.
ted "SIEMENS Insulator Integrated Coupling Units" can be
installed in high-voltage motors at the factory.
The post insulators in the terminal box are simply replaced
by the Insulator Integrated Coupling Units. This results in
decisive benefits:
by the Insulator Integrated Coupling Units. This results in
decisive benefits:
■
Simple, low-cost installation
■
No change in terminal box necessary
■
Rugged mechanical design
■
Highest and tested safety of the insulation distances
■
Direct interface to condition diagnostics
Maintenance_PA_04_2010_en.book Seite 25 Dienstag, 6. September 2011 9:45 09
© Siemens AG 2011