Power Inspired GATEWAY Series Manual

GATEWAY-2(B)S
700/1400W
On Demand AC Power
With Sleep function
1. INTRODUCTION
The GATEWAY Series are battery backed AC power supply designed for door access systems.
Unlike standard battery backup systems which revert to battery immediately following a power failure,
it is intended that the GATEWAY units remain off until awoken when needed with an external switch
contact. This prevents unnecessary battery discharge and extends power availability from hours to
weeks.
The Gateway 2S units can be used in standard UPS mode (where no remote contacts can be
incorporated) or in sleep mode. When in sleep mode the unit is activated using an external switch or
relay. Wireless relays or other controllers can also be incorporated using a 24Vdc supply provided by
the GATEWAY-2S. The Gateway-2BS models incorporate an internal mains first bypass facility. This
ensures mains power is always present on the output terminals whenever there is mains power
feeding the system. This is the case if the Gateway is active or not. The advantage of the bypass is
that output power will be available if the Gateway cannot be started due to a fault or flat internal
batteries.
When operating on battery, the unit outputs a high quality sine wave, as good as or better than you
would get from your normal utility supply which is essential to ensure reliable door operation. Note
that alternative systems may use non-sine wave inverters which are lower cost and simply not
designed to power motor type loads. This can cause mis-operation, system trips, excessive noise and
even damage to the motor or battery backup system itself.
GATEWAY BLOCK DIAGRAM