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UPS Network Management Card 2 User’s Guide46
to 70% repeatedly, but — because of the 10% hysteresis value — the alarm is not cleared and therefore no
new alarm occurs. For the existing alarm to clear, the humidity would have to drop below 55% (which is 65%
minus 10%).
Example of falling but wavering temperature: Say the minimum temperature threshold is 12°C, and the
temperature hysteresis is 2°C. Then the temperature drops below 12°C, causing an alarm. It then wavers back
up to 13°C and then down to 11°C repeatedly, but
— because of the 2°C hysteresis value — the alarm is not
cleared and therefore no new alarm occurs. For the existing alarm to clear, the temperature would have to rise
above 14°C (which is 12°C plus 2°C).
Input Contacts Page
This page is not available for all UPS devices.
Path: Environment >Input Contacts
Input Contacts on the left menu displays the name, alarm status, and state (open or closed) of each contact.
Click the name of an input contact for detailed status or to configure its values. Use the Input Contact check
box to enable or disable it. When disabled, the contact generates no alarm even when it is in the abnormal
position. Other fields are discussed below:
Output Relay Page
Path: Environment >Output Relay
This option is only available for devices with installed Dry Contact I/O Accessories. Select the Environment
tab, then Universal I/O from the top menu bar. Click Output Relay to display the status of the output relay
and configure its values.
Parameter Description
Alarm Status
Normal if this input contact is not reporting an alarm, or the severity of the alarm if this input
contact is reporting an alarm
State The current state of this input contact: Closed or Open.
Normal State The normal (non-alarm) state of this input contact: Closed or Open.
Severity
The severity of the alarm that the abnormal state of this input contact generates:
Warning or Critical.
Parameter Description
Alarm Status
Normal if this output relay is not reporting an alarm, or the severity of the alarm if this output
relay is reporting an alarm.
State The current state of this output relay: Closed or Open.
Normal State The normal (non-alarm) state of this output relay: Closed or Open.
Control To change the current state of this output relay, check-mark the setting.
Delay
The number of seconds a selected alarm condition must exist before the output relay is
activated. Use this setting to avoid activating an alarm for brief transient conditions.
Note: If additional mapped alarms occur after the delay begins, the delay does not restart but
continues counting down until the output relay is activated.