Hoyt Electrical Instrument Works, Inc. Alpha 40A Plus, Operating Manual

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3.2.4.1.1.2.1 Assignment of Limit output
to parameter.
This screen is for Limit output mode selection. It
allows the user to set Limit output corresponding
measured value. Refer
TABLE 3
“Parameter for
Limit output” for assignment.
Pressing “ ” key accepts
the present value and
advance to the Limit
(see section 3.2.4.1.1.2.2 ).
Pressing the “ ” key sets the displayed value &
(see section 3.2.4.1.1.2.2 )
Pressing the “ ” key will enter the “Limit output
Edit” mode and scroll the values, as per
TABLE 3
,
“Parameter for Limit Output”.
Pressing the “ ” key will advance to the Limit
Pressing the “ ” key will enter the Limit
modes available.
Pressing the “ ” key advances to the Limit
H i - E
(High Alarm &
Energized Relay)
H i - d
(High Alarm &
De-Energized Relay)
Lo - E
(Low Alarm &
Energized Relay)
Lo - d
(Low Alarm &
De-Energized Relay)
Pressing the “ ” key sets the displayed value &
will advance to “Trip point selection” Screen.
(See section 3.2.4.1.1.2.3 )
NOTE: Default value is set to ‘Hi-E’.
(For details refer to section 10.2)
Pressing the “ ” key accepts the present value
and advances to the “Trip Point selection” screen.
(see section 3.2.4.1.1.2.3)
3.2.4.1.1.2.3 Trip point selection :
This screen applies to the Trip point selection.
This screen allows the user to set Trip point for
instruments.
Similarly, enter second and third digits also.
Selection” screen. (See section 3.2.4.1.1.2.4)
Pressing the “ ” key will return to Edit mode.
NOTE: Default value is set to ‘100’.
The allowable range is 10%
to 120% for High Alarm 10%
to 100% for Low Alarm.
(refer
TABLE 3
).
digit.
Press the “ ” key to advance to next digit.
3.2.4.1.1.2.4 Hysteresis selection :
This screen applies to the Hysteresis selection.
This screen allows the user
to set Hysteresis for relay
output.
The allowable range is
0.5% to 50.0 % of Trip point.
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