Programmable Logic - Eaton EMR-3MP0 Installation, Operation And Maintenance Manual

6 Programmable Logic

6 Programmable Logic
General Description
The protective device includes programmable logic equations for programming inputs,
outputs, blocking of protective functions, and custom logic functions in the relay.
The logic provides control of the output relays based on the state of the inputs that can
be chosen from the assignment list (protective function pickups, protective function
states, breaker states, system alarms and module inputs – see
Signals and
higher equations (e. g.: the output signal of logic equation 10 might be used as an input
of logic equation 11).
IN1 Inverting settable
IN2 Inverting settable
IN3 Inverting settable
IN4 Inverting settable
Reset Latched Inverting settable
Fig. 50: Principle Overview.
If no signal is assigned to a logic gate (All inputs are "0"), then the output of the gate will
be set as follows:
• "0" for an AND gate
• "1" for a NAND gate
• "0" for an OR gate
• "1" for a NOR gate
If at least one input signal is assigned to a gate all not assigned inputs are set to:
• "1" for AND / NAND gates
• "0" for an OR / NOR gates
212
Values"). The user can use the output signals of a logic equation as inputs in
Type of logic gate selectable
AND
OR
NAND
NOR
Delay Timer
t-On Delay
Inverting settable
t-Off Delay
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╚═▷ "Modules, Settings,
Timer Out
Set
Q
S
Reset
Out inverted
R
Q
EMR-3MP0
Gate Out
Out