Applications
GARD 8000 SYS RFL Electronics
May 1, 2013 2-23 973.334.3100
2.7.2 SOLID STATE OUTPUTS
The solid state outputs come in groups of six electrically independent outputs. A group of six is
mounted on the upper and/or lower part of a rear board in the 6U chassis or left/right side on the 3U
chassis. A communications module can accommodate one group of six outputs. Discrete I/O modules
can comprise two solid state output groups, one solid state output group and one input group or one
solid state output group and one relay output group.
The terminals are numbered from left to right, top to bottom in the 6U chassis. In the 3U chassis, the
same type of board is mounted horizontally so marking is read from right to left.
Solid state outputs are type A (NO, normally open). Inversion can be made in the logic.
2.7.3 RELAY OUTPUTS
The relay outputs come in groups of six electrically independent outputs. A group of six is mounted on
the upper and/or lower part of a rear board in the 6U chassis or left/right side on the 3U chassis. A
communications module can accommodate one group of six relay outputs. Discrete I/O modules can
comprise two relay output groups, one relay output group and one input group or one solid state output
group and one relay output group.
The terminals are numbered from left to right, top to bottom in the 6U chassis. In the 3U chassis, the
same type of board is just mounted horizontally so marking is read from right to left.
The contacts are type A (NO, normally open) or type B (NC, normally closed). Potential inversion can
be made by jumpers; i.e. with the jumper in position INV the contact will be closed when a logical
ZERO is provided by the logic.
2.8 TELEPROTECTION SYSTEM
The Teleprotection System emulates the RFL 9745’s flexible, customized programmable logic but
provides an even higher degree of ease-of-use. Selection of pre-programmed schemes for blocking,
unblocking, permissive and transfer trip operations is simply done by a setting.
The GARD 8000 System is customized to provide the number of channels, type and number of
channel interfaces, inputs and outputs and redundancy to meet your application needs.
Features include:
8 to 32 functions per digital interface
Settable input de-bounce and continuation timers
Selectable security count
Operating time is 5 ms for digital channel and from 9 ms for analog channel
2 or 4 commands per analog channel interface
An analog channel can be used with V.29 modem for coded transfer trip
Redundant (hot/standby) operation with digital/analog or digital/digital channel interfaces
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