Contact Outputs - GE L90 Instruction Manual

INPUTS/OUTPUTS
There are 64 virtual inputs that can be individually programmed to respond to input signals from the keypad (via the
menu) and communications protocols. All virtual input operands are defaulted to "Off" (logic 0) unless the
COMMANDS
appropriate input signal is received.
If the
VIRTUAL INPUT x FUNCTION
input. If set to "Enabled," the input operates as shown on the logic diagram and generates output FlexLogic operands in
response to received input signals and the applied settings.
There are two types of operation: self-reset and latched. If
transits from off to on, the output operand is set to on for only one evaluation of the FlexLogic equations and then return to
off. If set to "Latched," the virtual input sets the state of the output operand to the same state as the most recent received
input.
The self-reset operating mode generates the output operand for a single evaluation of the FlexLogic equations. If the
operand is to be used anywhere other than internally in a FlexLogic equation, it likely needs to be lengthened in time. A
FlexLogic timer with a delayed reset can perform this function.
5

5.9.3 Contact outputs

5.9.3.1 Digital outputs
SETTINGS  INPUTS/OUTPUTS  CONTACT OUTPUTS  CONTACT OUTPUT H1
 CONTACT OUTPUT H1

A contact inputs and outputs are digital signals associated with connections to hard-wired contacts. Wet and dry contacts
are supported.
Upon startup of the relay, the main processor determines from an assessment of the modules installed in the chassis
which contact outputs are available and then presents the settings for only these outputs. Where the contact input is non-
latching, the settings are as shown.
An ID can be assigned to each contact output. The signal that can OPERATE a contact output can be any FlexLogic
operand (virtual output, element state, contact input, or virtual input). An additional FlexLogic operand can be used to
SEAL-IN the relay. Any change of state of a contact output can be logged as an Event if programmed to do so.
5-416
is to "Disabled," the input is forced to off (logic 0) regardless of any attempt to alter the
VIRTUAL INPUT x type
Figure 5-231: Virtual inputs logic
CONTACT OUTPUT H1 ID

Cont Op 1
OUTPUT H1 OPERATE:

Off
OUTPUT H1 SEAL-IN:

Off
CONTACT OUTPUT H1

EVENTS: Enabled
is "Self-Reset," when the input signal
Range: up to 20 alphanumeric characters
Range: FlexLogic operand
Range: FlexLogic operand
Range: Disabled, Enabled
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS