CHAPTER 5: SETTINGS CONTROL ELEMENTSF60 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 5-2555The selector switch element is intended to replace a mechanical selector switch. Typical applications include setting groupcontrol 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 atime with each pulse of the control input, such as a user-programmable pushbutton. The three-bit control input allowssetting 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 aftertime-out or upon acknowledgement via separate inputs (user setting). The selector position is stored in non-volatilememory. 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 inputbeing out of range.A selector switch runs every two power cycles.SELECTOR 1 FULL RANGE — This setting defines the upper position of the selector. When stepping up through availablepositions of the selector, the upper position wraps up to the lower position (position 1). When using a direct three-bit controlword for programming the selector to a desired position, the change would take place only if the control word is within therange of 1 to the SELECTOR FULL RANGE. If the control word is outside the range, an alarm is established by setting theSELECTOR ALARM FlexLogic operand for three seconds.SELECTOR 1 TIME-OUT — This setting defines the time-out period for the selector. This value is used by the relay in thefollowing two ways. When the SELECTOR STEP-UP MODE is “Time-out,” the setting specifies the required period of inactivityof the control input after which the pre-selected position is automatically applied. When the SELECTOR STEP-UP MODE is“Acknowledge,” the setting specifies the period of time for the acknowledging input to appear. The timer is re-started byany activity of the control input. The acknowledging input must come before the SELECTOR 1 TIME-OUT timer expires;otherwise, the change does not take place and an alarm is set. SELECTOR 1 FULLRANGE: 7Range: 1 to 7 in steps of 1 SELECTOR 1 TIME-OUT:5.0 sRange: 3.0 to 60.0 s in steps of 0.1 SELECTOR 1 STEP-UP:OffRange: FlexLogic operand SELECTOR 1 STEP-UPMODE: Time-outRange: Time-out, Acknowledge SELECTOR 1 ACK:OffRange: FlexLogic operand SELECTOR 1 3BIT A0:OffRange: FlexLogic operand SELECTOR 1 3BIT A1:OffRange: FlexLogic operand SELECTOR 1 3BIT A2:OffRange: FlexLogic operand SELECTOR 1 3BITMODE: Time-outRange: Time-out, Acknowledge SELECTOR 1 3BIT ACK:OffRange: FlexLogic operand SELECTOR 1 POWER-UPMODE: RestoreRange: Restore, Synchronize, Sync/Restore SELECTOR 1 TARGETS:Self-resetRange: Self-reset, Latched, Disabled SELECTOR 1 EVENTS:DisabledRange: Disabled, Enabled
