Westinghouse SE 3718S, Руководство пользователя

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I
NTRODUCTION
1-1
S
ECTION
1: I
NTRODUCTION
This manual provides installation and operating procedures for the Westinghouse Security
Electronics (WSE) SE 3718S Uninterruptable Power Supply (part number 92371800000).
Included are specifications, operation description, controls and indicators, installation data, and
a troubleshooting guide.
N
OTE
• Changes or modifications to the equipment described herein not expressly approved by
Westinghouse Security Electronics can void the warranty and the authority of the user to
operate the system.
• Repairs to the SE 3718S shall be limited to those that can be performed without removing
the unit from its case.
• The information in this manual assumes that the reader is familiar with access control and
alarm monitoring technology, and standard installation practices.
• The information in this manual is not intended to conflict with and/or supplement the building
codes, electrical codes, or safety codes to which any given installation must conform.
CONFIGURATION
The SE 3718S is available in one configuration which accommodates both 115 and 230 volt AC
power input. Lock voltage is switch-selectable between 12 and 24 volts. Backup battery power
is standardized at 24 volts nominal.
SYSTEM OVERVIEW
The SE 3718S is a true uninterruptable power supply in that it takes power from power lines or
external storage batteries (always online in case of power failure). Normally, when AC power is
available, the batteries are always kept charged. If a power failure occurs, the batteries take over
immediately until AC power is restored.
To accomplish this, the 3718S is actually two power supplies working together. The first, or
primary power supply, provides low voltage for battery charging, and for the secondary power
supply which, in turn, produces all system voltages. During power outages, the batteries continue
to provide the low voltage needed for the secondary power supply.