Red Lion GEMINI 2 - Manual (Page 20)

CODE 54 - OUTPUT 2 TERMINATION MODES (Gemini 2000 Only)
The Gemini 2000 has two standard Output 2 Termination Modes when
operating as a rate indicator. They are terminate After Time Delay and Boundary.
A Reverse Phase Option is available on the Gemini 2000. This refers to
complementing the logic state of the output. For normal phase operation, the
reset condition of the output is output off. For reverse phase operation, the reset
condition of the output is output on. (Note: The state of the relay, if used, is also
reversed.) A “-” sign in front of the mode identifier will provide for reverse
phase operation. The absence of a “-” sign will give normal phase operation.
[54 5] TERMINATE AFTER OUTPUT 2 TIME DELAY - In this mode, output 2
activates at the end of each sample time in which the rate is higher than Preset 2.
Once output has been activated, it will deactivate after the predetermined length
of output 2 time delay has expired. If the output 2 time delay is longer than the
sample time, the output time delay will continually be restarted without timing
out until the rate is lower than Preset 2 value. Manual reset, by either the front
panel button or the reset terminal, will override the output time delay and reset
the output. The output is set for normal phase operation.
[54 6] BOUNDARY MODE - When in the boundary mode, the preset 2 value
serves as the boundary point. When the rate value is more negative than the preset,
the output is not activated. When the rate value is more positive than or equal to
the preset, the output is activated. If the rate value were to drop below preset, the
output would again deactivate. For negative preset points (Negative Scale
Factor), the output is not activated when the rate value is more positive than the
preset value. When the rate value is more negative than or equal to the preset, the
output is activated. If the rate value becomes more positive than the preset, the
output again deactivates. The output is set for normal phase operation.
In addition, when functioning as a rate indicator, the Gemini 2000 also has two
special use function modes, Terminate at Manual Reset and Terminate at
Manual Reset End. These modes are infrequently used. However, they may be
useful when a requirement exists to latch and manually release the output.
[54 3] TERMINATE AT MANUAL RESET - In this mode, Output 2 activates
when the rate exceeds the Preset 2 value. Once activated the output does not
deactivate until the moment a reset occurs. The reset can be from the front
panel button or from the remote reset terminal, at the rear of the unit. The
output is set for normal phase operation.
[54 4] TERMINATE AT MANUAL RESET END - This mode is like the
preceding output mode, except the output deactivates when the reset ends. The
output is set for normal phase operation.
[54 -3]
[54 -4] These modes are the same as above with the exception
[54 -5] that the output is set for reverse phase operation.
[54 -6]
CODE 55 - OUTPUT 2 TIME DELAY (Gemini 2000 Only)
The Gemini 2000 has the capability of varying the output time delay from 0.01
second to 599.99 seconds. When the code is entered, instead of a single mode
identifier digit being displayed, six digits will be shown. Refer to the “Programming
Preset, Scale Factor, and Output Time Delay” section for more details about
entering. Output time delay will be terminated if the unit is manually reset.
Note: A time delay value of zero cannot be programmed into the Gemini 2000. If a
value of 0 is entered into the display and the “E” key is pressed, the unit will
not enter the 0, but will revert back to displaying the previous time delay.
CODE 61 - RIGHT HAND DUMMY ZEROS
These zeros are used to effectively move significant digits to the left. Up to three
non-functional zeros can be used. Therefore, a normal count of 1 could be shown as
a 10, 100, or 1000 without setting or changing any other parameter of the system.
Note: Use of dummy zeros or scale factor values greater than one could cause the
displayed value to overflow before a value of 999,999 (6-digits) is
accumulated. See “Overflow Indication” section for more details.
[61 1] 1 RIGHT HAND DUMMY ZERO - One is displayed.
[61 2] 2 RIGHT HAND DUMMY ZEROS - Two are displayed.
[61 3] 3 RIGHT HAND DUMMY ZEROS - Three are displayed.
[61 4] NO RIGHT HAND DUMMY ZEROS - None are displayed.
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