Alarm Contact Connections - Ametek Thermox WDG Insitu User Manual

3-22 | Thermox Series 2000 WDG Insitu Analyzer

alarm Contact Connections

Follow general EMC grounding and shielding requirements for all
wiring as described in the "General Wiring Requirements" section of
this chapter.
This section describes how to make wiring connections for any alarm devices
you want to connect to the control unit. Information on how to set up alarms in
software is described in the Controller/User Interface chapter.
The Series 2000 control unit provides four sets of alarm contacts, which are
labeled as follows (see Figure 3-21):
ALARM 1A
ALARM 1B
The Watchdog Timer Alarm connections are labeled as follows on the control
unit:
ALARM 1A
ALARM 1B
See the "Watchdog Relay" section in the Controller/User Interface chapter 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
(Exception Log).
The Service Alarm connections are labeled as follows:
ALARM 2A
ALARM 2B
See the "Service Alarm" section in the Controller/User Interface chapter for
complete information on what events trigger the transfer of the service alarm.
The service alarm contacts are normally closed during system operations (deacti-
vated). A service alarm event triggers these alarm contacts to an open condition.
Oxygen Alarm connections are configurable in software to activate under a vari-
ety of user defined conditions, and are labeled as follows:
ALARM 2A ALARM 3A
ALARM 2B ALARM 3B
ALARM 4A
ALARM 4B