Ametek Thermox CEM O2/TM, Руководство пользователя

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3-24 | Thermox CEM O2/TM
Alarm Connections
The Series 2000 control unit provides six sets of standard alarm contacts,
which are labeled as follows (see Figure 3-21):
ALARM 1A ALARM 2A ALARM 3A ALARM 4A
ALARM 1B ALARM 2B ALARM 3B ALARM 4B
The Watchdog Timer Alarm connections are labeled as follows on the
control unit:
ALARM 1A
ALARM 1B
See the “Watchdog Relay” segment in the Alarm Key section for complete
information on the watchdog timer alarm. The watchdog alarm contacts
are normally closed during system operations (deactivated). A watchdog
event triggers these alarm contacts to an open condition. If you have a
watchdog event, and the system returns to normal operations, then the
watchdog alarm will reset. The system will retain in memory the last time
the watchdog condition occurred (see the “Exception Log” segment in the
Alarm Key section for help on how to view this information).
The Service Alarm connections are labeled as follows:
ALARM 2A
ALARM 2B
See the “Service Alarm” segment in the Alarm Key section for complete
information on what events trigger the transfer of the service alarm. The
service alarm contacts are normally closed during system operations (de-
activated). A service alarm event triggers these alarm contacts to an open
condition.
Oxygen Alarm connections are configurable in software to activate under
a variety of user defined conditions, and are labeled as follows:
ALARM 3A ALARM 4A
ALARM 3B ALARM 4B
See the Alarm Key section for complete information on all alarms, includ-
ing what they can track and how they operate.