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Dry Contact I/O SmartSlot Card
9
Installing
See “Planning your installation” directly below, “Installation steps” on page 12,
and “Connecting to the configuration utility” on page 14.
Planning your installation
Operating considerations
Note the following characteristics of the Dry Contact I/O SmartSlot Card when
making decisions regarding system integration:
• The coils for all output relays are normally energized. The Card will
generate all possible alarms in case of a system fault, such as cable
failure, removal of the Dry Contact I/O SmartSlot Card, severe UPS
battery discharge, or catastrophic hardware failure on the Card.
• All output relays are isolated from each other and from the UPS system
ground.
• All input contacts are isolated from the UPS system ground but are
common to each other
• Control inputs are driven by user-supplied dry contact outputs. The dry
contact closure sensing voltage available on these inputs is nominally 5
VDC at less than 1 mA. All control inputs are referenced to the UPS
system ground.
• All control inputs must be stable for a minimum of one second to be
considered valid. Longer delays can be set through the Configuration
Utility. Control inputs can be asserted indefinitely.
• Be careful to assert just a single input to a device. Avoid initiating
simultaneous, conflicting actions, e.g. input #1 (turn the UPS on) and
input #2 (turn the UPS off).
• Control inputs are acted upon immediately after validation. However,
there are several UPS conditions that can cause an input to be
ineffective, such as self-test or runtime calibration. For confirmation of
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Read and understand this manual and the manuals of the UPS before
installing this card.
Installation must be performed by qualified personnel.
The user is responsible for compliance with all international and national
electric code requirements.
Failure to follow these instructions will result in death or serious injury.