UG-1091
6QBI
User’s Guide
Copyright © 2021 QEI
6COP1 Control Panel Interface
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5 6COP1 Control Panel Interface
5.1 General
The Control Panel Interface (J5) provides the means for the system to momentarily
energize external relays (control output points) in response to control commands
received from the "client", or locally generated from internal processes.
The Control Panel Interface has the capability of controlling up to 256 momentary
relays, or 128 control point outputs.
Each control output point consists of one pair of complementary command functions,
such as OPEN/CLOSE, SET/RESET, etc. Each control output point is normally
equipped with an external pair of momentary relays, or a single latching relay. These
external relays are arranged, or grouped, in external control point output panels.
There are several control point output panel arrangements with the 6COP1 or 6ROP,
the most commonly used are groupings of eight control output points, however some
may have only four control output points or less.
The Control Panel Interface executes a command by selecting a single external
relay, then energizing its coil for a pre-defined period of time. To do this, the Control
Panel Interface provides 16 current source lines and 16 current sink lines. The
current source lines (8 trip and 8 close) act as a relay select, while the current sink
lines act as a panel select (group of 8 control output points). Together, they
complete a current loop that energizes the selected relay.
The Control Panel Interface includes circuitry to ensure that only one output relay is
energized at a time. If more than one relay is being energized, because of
component failure, a selected-row/column detector aborts the command.
An external 30 VDC power source is required for relay operation. A 2-pin miniature
MOLEX connector, J9, is provided for this input.
A 34-pin IDC header, J5, is used for the connections to the control point output
panels (6COP1 or 6ROP) through a 34-conductor ribbon cable. Signals in this
connector include:
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16 column lines (panel selects)
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8 trip lines (relay selects)
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8 close line (relay selects)
