GE Multilin F35 Instruction Manual page 282

5.7 INPUTS/OUTPUTS
b) DIRECT OUTPUTS
PATH: SETTINGS INPUTS/OUTPUTS
DIRECT OUTPUT
The
DIRECT OUT 1 NAME
the FlexLogic™ operand that determines the state of this direct output.
c) APPLICATION EXAMPLES
The examples introduced in the earlier Direct inputs and outputs section (part of the Product Setup section) are continued
below to illustrate usage of the direct inputs and outputs.
EXAMPLE 1: EXTENDING INPUT/OUTPUT CAPABILITIES OF A F35 RELAY
Consider an application that requires additional quantities of digital inputs or output contacts or lines of programmable logic
that exceed the capabilities of a single UR-series chassis. The problem is solved by adding an extra UR-series IED, such
as the C30, to satisfy the additional inputs/outputs and programmable logic requirements. The two IEDs are connected via
single-channel digital communication cards as shown below.
5
Figure 5–79: INPUT AND OUTPUT EXTENSION VIA DIRECT INPUTS AND OUTPUTS
Assume contact input 1 from UR IED 2 is to be used by UR IED 1. The following settings should be applied (Direct Input 5
and bit number 12 are used, as an example):
UR IED 1:
DIRECT INPUT 5 DEVICE ID
DIRECT INPUT 5 BIT NUMBER
The operand of UR IED 2 is now available in UR IED 1 as
Cont Ip 1 On
EXAMPLE 2: INTERLOCKING BUSBAR PROTECTION
A simple interlocking busbar protection scheme can be accomplished by sending a blocking signal from downstream
devices, say 2, 3 and 4, to the upstream device that monitors a single incomer of the busbar, as shown in the figure below.
5-160
DIRECT OUTPUTS
1 DIRECT OUT
Dir Out 1
DIRECT OUT
MESSAGE
Off
DIRECT OUTPUT
MESSAGE
EVENTS: Disabled
setting allows the user to assign a descriptive name to the direct output. The
UR IED 1
UR IED 2
= "2"
= "12"
UR IED 2 UR IED 3
Figure 5–80: SAMPLE INTERLOCKING BUSBAR PROTECTION SCHEME
F35 Multiple Feeder Protection System
DIRECT OUTPUT 1(32)
Range: up to 12 alphanumeric characters
1 NAME:
Range: FlexLogic™ operand
1 OPERAND:
Range: Enabled, Disabled
1
TX1
RX1
TX1
RX1
UR IED 2:
DIRECT OUT 12 OPERAND
DIRECT INPUT 5 ON
UR IED 1
BLOCK
UR IED 4
5 SETTINGS
DIR OUT 1 OPERAND
= "Cont Ip 1 On"
.
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