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CHAPTER 6: SETPOINTS
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
The "TRIP" LED will turn on upon Logic Element operation if the Logic Element function is
selected as Trip.
The option to trigger auxiliary output relays is provided for any of the selected Logic
Element functions.
The following path is available using the keypad. For instructions on how to use the
keypad, please refer to Chapter 3 - Working with the Keypad.
PATH:
SETPOINTS > S4 CONTROLS > S4 LOGIC ELEMENTS
LE1(16) FUNCTION
Range: Disabled, Control, Alarm, Latched Alarm, Trip
Default: Disabled
This setting defines the use of the Logic Element. When Trip is selected as a function, the
Logic Element will trigger Output Relay # 1 (Trip) upon operation.
LE1(16) ASSERTED
Range: On, Off
Default: Off
This setting defines the Logic Element state "On" or "Off" to be used as an output. The
asserted "On" selection provides an output "high" when the LE is "On". If asserted "Off" is
selected, then the LE output will be "high", when the LE is "Off".
TRIGGER SOURCE 1, 2, 3
Range: Off, Any input from the list of inputs
Default: Off
Each of the three trigger sources is configurable by allowing the assigning of an input
selected from a list of inputs. This input can be a contact input, a virtual input, a remote
input, or an output flag from a protection, or control element.
TRIGGER LOGIC
Range: OR, AND
Default: OR
This setting defines trigger source operation as either "OR" or "AND". When set to "OR"
any of the inputs will trigger the Logic Element. When set to "AND" all three sources must
be asserted before the Logic Element is triggered.
PKP TIME DELAY
Range: 0 to 60000 ms in steps of 1 ms
Default: 0 ms
This setting specifies the pickup time delay before Logic Element operation.
DPO TIME DELAY
Range: 0 to 60000 ms in steps of 1 ms
Default: 0 ms
This setting specifies the time delay from a reset timer that starts upon expiry of the
pickup time delay and prolongs the operation of the Logic Element until this time expires.
BLOCK 1, 2, 3
Range: Off, Any input from the list of inputs
Default: Off
Each of the three blocks is configurable by allowing the assigning of an input selected
from a list of inputs. This input can be a contact input, a virtual input, a remote input, or
an output flag from a protection, or control element, as well as an input from any of the
other seven logic inputs.
S4 CONTROL
6–127
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