Accessories
Accessory manuals for most make and model accessories can
be found on the web at:
www.upswung.com
The accessory manuals you have or find at the above address may be written to
coincide with that manufacturers model of gate opener. To determine correct
terminals on your Sentry Swing operator, use the accessory terminal section of
your Sentry Swing manual. The following are some common terms and
abbreviations found in manuals:
Normally Open –
abbr. N/O – Indicates a circuit that is left open during normal
operation of the gate operator. When a device closes this circuit it signals the
operator to perform a function. This circuit is the main circuit for entry devices. (i.e.
keypads, exit wands, push buttons, etc.)
Normally Closed –
abbr. N/C – Indicates that in order for the gate opener to be
active this circuit must be closed. When a device opens this circuit it stops the
motion of the gate operator. This circuit is the main circuit for safety devices. (i.e.
photo eyes, safety loops, etc.)
Common –
abbr. COM – This is the matching terminal for both Normally Open and
Normally Closed circuits to be connected to. Accessory wiring that begins in a N/O
or N/O terminal must have a wire that ends in a Common terminal.
Ground –
abbr. GND or GRD – Ground is sometimes also known as negative.
Common terminals are the same as Ground terminals. Ground can also be the
negative spade of the battery if it is being used in association with positive voltage.
If a device has both a N/O and a N/C wire, both are never used at the same time.
Some devices can be used as either an opening device or a safety device (i.e. gate
crafters exit wand, NIR photo eye, etc.) If being used as an opening device use the
N/O and if being used as a safety de-vice use the N/C terminals.
Summary of Contents for Sentry Swing
Page 49: ......