Selector Switch - GE T60 Instruction Manual
Transformer protection system
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- Instruction manual (796 pages) ,
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- Instruction manual (718 pages)
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CHAPTER 5: SETTINGS
5.8.4 Selector switch
SETTINGS CONTROL ELEMENTS SELECTOR SWITCH SELECTOR SWITCH 1(2)
SELECTOR SWITCH 1
The selector switch element is intended to replace a mechanical selector switch. Typical applications include setting group
control or control of multiple logic sub-circuits in user-programmable logic.
The element provides for two control inputs. The step-up control allows stepping through selector position one step at a
time with each pulse of the control input, such as a user-programmable pushbutton. The three-bit control input allows
setting the selector to the position defined by a three-bit word.
The element allows pre-selecting a new position without applying it. The pre-selected position gets applied either after
time-out or upon acknowledgement via separate inputs (user setting). The selector position is stored in non-volatile
memory. Upon power-up, either the previous position is restored or the relay synchronizes to the current three-bit word
(user setting). Basic alarm functionality alerts the user under abnormal conditions; for example, the three-bit control input
being out of range.
A selector switch runs every two power cycles.
— This setting defines the upper position of the selector. When stepping up through available
SELECTOR 1 FULL RANGE
positions of the selector, the upper position wraps up to the lower position (position 1). When using a direct three-bit control
word for programming the selector to a desired position, the change would take place only if the control word is within the
range of 1 to the
SELECTOR FULL RANGE
FlexLogic operand for three seconds.
SELECTOR ALARM
T60 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
SELECTOR 1 FUNCTION:
Disabled
SELECTOR 1 FULL
RANGE: 7
SELECTOR 1 TIME-OUT:
5.0 s
SELECTOR 1 STEP-UP:
Off
SELECTOR 1 STEP-UP
MODE: Time-out
SELECTOR 1 ACK:
Off
SELECTOR 1 3BIT A0:
Off
SELECTOR 1 3BIT A1:
Off
SELECTOR 1 3BIT A2:
Off
SELECTOR 1 3BIT
MODE: Time-out
SELECTOR 1 3BIT ACK:
Off
SELECTOR 1 POWER-UP
MODE: Restore
SELECTOR 1 TARGETS:
Self-reset
SELECTOR 1 EVENTS:
Disabled
. If the control word is outside the range, an alarm is established by setting the
Range: Disabled, Enabled
Range: 1 to 7 in steps of 1
Range: 3.0 to 60.0 s in steps of 0.1
Range: FlexLogic operand
Range: Time-out, Acknowledge
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: Time-out, Acknowledge
Range: FlexLogic operand
Range: Restore, Synchronize, Sync/Restore
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
CONTROL ELEMENTS
5
5-305
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