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UPS for 400 Vac Grid, User Guide, doc. rev. 4
Figure 87 shows output dry contact #6 defined to change state when the UPS moves into bypass
mode. The move to bypass generates an alarm, and in this example dry contact #4 is linked to
that alarm.
Figure 87: Example of an output dry contact linked to an alarm
8.2.9.2.1.
Location of the output dry contacts
The connections for the output dry contacts are located in “connector group 2” on the front panel
of the UPS. The connections are on plugs P1 through P4, and are named “digital output #1”
through “digital output #8”.
8.2.9.2.2.
Output dry contacts in action
Upon the occurrence of any of the alarm conditions in Table 4, the output dry contact(s)
associated with that alarm (if any) generates a message to the log file. A system snapshot is also
saved to the log file. When the alarm condition ceases, a message is written to the log file
informing of this.
8.2.9.2.3.
Testing an output dry contact
An output dry contact that has been associated with an alarm can be tested without actually
invoking the related alarm condition, by pressing the Test button at the bottom of the output dry
contact screen (see Figure 87).
Pressing the test button changes the state of the output dry contact to its "non-Normal"
condition for about five seconds.
8.2.9.3.
Generator Mode setup
This function lets you instruct the UPS not to charge the batteries when the UPS is being fed by a
generator. The object is to avoid overloading the generator.
