Analog Output Terminals; Analog In Terminals; External Switches 1 To 8; Access Terminals - GE Multilin 565 Instruction Manual

2 = transmit data to printer
3 = receive data from printer
4 = Clear To Send from printer
5 = signal ground.
See your printer manual for connections at the printer. ** Avail-
able only with the Option Card installed **

Analog Output Terminals

Terminals 17 and 18 provide a single output that can be
programmed as 4-20 mA or 0-1 mA to correspond from zero
to full scale.
Using the analog select terminals 19-22, and 71, outputs can
be selected by placing a binary code on inputs A-D. This code
can be PLC controlled for changing the output selection. This
allows monitoring and plotting measured values such as
phase current, using a single analog input channel of a
programmable controller.
If a single output parameter is desired, this is achieved through
setpoint programming without external connections to inputs A-D.

Analog In Terminals

The 565/575 Relay is designed to accept an input from
standard 4 to 20 mA source such as a Multilin TS3 Tempera-
ture Monitor. This input can be used to provide status or trip
signals related to the level of the input, a transformer winding
temperature, for example. The setup of the trip, alarm or
status indications are done during the software programming
in the Setpoints mode.
The input terminals are positive 24, and negative 23.

External Switches 1 to 8

The 565/575 Relay can accept switch inputs from eight
external switches, through terminals 1 to 8. The function of
switches 1 to 8 is user definable. They can be programmed to
perform functions such as preventing certain feeder breaker
trips or introducing a time delayed alarm. These features are
assigned to the switches in the Configuration page of Set-
points mode.
CAUTION
External Switch inputs should be connected to dry circuits
only to prevent damage to the relay.
No external voltage should be applied to these terminals as
the contacts are energized internally from the 565/575 and
opto-coupled to the sensing circuitry. Switches should be
isolated from each other for correct operation. The maximum
input impedance to these external switches is 2 kΩ.

Access Terminals

Terminals 33 and 34 can be connected to a keyswitch. The
565/575 Relay setpoints cannot be changed unless this
keyswitch is closed (ie. 33 and 34 are connected together).
This prevents unauthorized personnel from tampering with
the setpoints once they are set up. This function can be
defeated using the Security feature. Refer to Setpoint Pro-
gramming.

Remote Trip/Close Terminals

When terminals 39 and 40 are "open", the 565/575 relay is
operating in Local Mode. If this is the case, terminals 26, 27,
and 28 will have no effect upon either the Close (terminals 42
and 58) or Trip (terminals 25, 57, and 41) output relays.
When terminals 39 and 40 are "closed", the 565/575 relay is
operating in Remote Mode. Now if terminals 27 and 28 are
shorted, the Close output relay becomes energized and if
terminals 26 and 27 are shorted, the Trip output relay be-
comes energized. Note that each relay will be picked up for
as long as the appropriate switch input remains closed.
This operation is completely independent of software and is
strictly under hardware control.

Removal of Cradle

To remove the cradle from the case, open the door and
unscrew the locking screw fasteners. The cradle can now be
removed simply by pulling on the front handle. Caution
should be taken when the cradle is removed as this exposes
live terminals in the case.

Inserting Cradle

To insert the cradle, align the aluminum guides on the sides
of the cradle with those inside the case and slide the cradle
into place. Ease in with constant pressure. Once inserted,
the yellow guideline should be visible. The locking screw
fasteners can now be screwed in and tightened. NOTE: The
locking screw fasteners should be locked at all times while
the cradle is inserted to ensure that proper connection to the
rear terminals is maintained.
CAUTION
Do not press on the LCD display when removing or install-
ing the unit.
INSTALLATION
2-5