DALEMANS U-H1, Instruction Manual

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This configuration element applies to all level-1 alarms.
•
Behaviour of the external alarm
The reaction of the U•H1 control unit to a change of state on the “ External Alarm ” input can be
configured as follows:
- Disabled : a change of the input’s state will have no effect,
- Addresses the level 1 alarm (" Set alarm level 1 ") : a change of the input’s state activates the
level 1 alarm of the U•H1 control unit,
- Addresses the level 2 alarm (" Set alarm level 2 ") : a change of the input’s state activates the
level 2 alarm of the U•H1 control unit.
- Addresses both alarm levels (" Set alarm levels 1&2 ") : a change of the input’s state activates
the levels 1 and 2 of the alarm of the U•H1 control unit.
•
Normal state of the external alarm
The external alarm, when it is active, is triggered by a change of state on the U•H 1 control unit which is
dedicated to the external alarm’s connection. This configuration element specifies the state of this input
at rest and, as a result, the nature of the state change which triggers the alarm.
The possible states are as follows:
•
“ normally closed ”: at rest, the circuit connected to the input is closed. The external alarm is
thus activated when the circuit is opened.
•
“ normally opened ”: at rest, the circuit connected to the input is open. The external alarm is
activated when the circuit is closed.
•
Errors reset mode
The
U•H1 Control Unit has an internal fault management. Once detected, any abnormal operation of the
U•H1 Control Unit or D•TEX 3F+ detector is notified by an action on the relay signaling the technical
defect.
The mode to reset a technical fault specifies how it is reset:
- as standard, the U•H1 Control Unit is configured for automatic reset.
Error reset mode
Automatic
Note:
This mode does not apply to level-2 alarms.