Application Examples - GE N60 Instruction Manual

CHAPTER 5: SETTINGS
— Represents the source of direct input 1. The specified direct input is driven by the device
DIRECT INPUT 1 DEVICE ID
identified here.
— The bit number to extract the state for direct input 1. Direct Input 1 is driven by the bit
DIRECT INPUT 1 BIT NUMBER
identified as
DIRECT INPUT 1 BIT NUMBER
DIRECT INPUT 1 DEFAULT STATE
following choices are available:
• On — Defaults the input to Logic 1
• Off — Defaults the input to Logic 0
• Latest/On — Freezes the input in case of lost communications. When the latest state is not known, such as after relay
power-up but before the first communication exchange, the input defaults to Logic 1. When communication resumes,
the input becomes fully operational.
• Latest/Off — Freezes the input in case of lost communications. When the latest state is not known, such as after relay
power-up but before the first communication exchange, the input defaults to Logic 0. When communication resumes,
the input becomes fully operational.
5.9.6.2 Direct outputs
SETTINGS  INPUTS/OUTPUTS  DIRECT OUTPUTS  DIRECT OUTPUT 1(64)
 DIRECT OUTPUT 1

— This setting allows the user to assign a descriptive name to the direct output.
DIRECT OUT 1 NAME
— This sets the FlexLogic operand that determines the state of this direct output.
DIR OUT 1 OPERAND

5.9.6.3 Application examples

The examples introduced in the earlier Direct Inputs and Outputs section (part of the Product Setup section) are continued
here to illustrate usage of the direct inputs and outputs.
Example 1: Extending input/output capabilities of a UR relay
Consider an application that requires additional quantities of contact 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 figure shows that two
IEDs are connected via single-channel digital communication cards.
Figure 5-165: Input and output extension via direct inputs and outputs
Assume that contact input 1 from UR IED 2 is to be used by UR IED 1. The following settings are applied (Direct Input 5 and
bit number 12 are used, as an example).
UR IED 1:
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
. This corresponds to the direct output number of the sending device.
— Represents the state of the direct input when the associated direct device is offline. The
DIRECT OUT 1 NAME:

Dir Out 1
DIRECT OUT 1 OPERAND:

Off
DIRECT OUTPUT 1

EVENTS: Disabled
Range: up to 12 alphanumeric characters
Range: FlexLogic operand
Range: Enabled, Disabled
INPUTS/OUTPUTS
5
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