Omega Vehicle Security PTC900 manual Module 1 Timer Input Parameters, Parameter Menu

6.1 MODULE 1 - TIMER INPUT PARAMETERS (	)
PARAMETER MENU

Module 1 is the programming module for the Timer Input Parameters. In the Display Mode, the TMR annunciator indicates the Timer display is currently being shown. An EXCHANGE PARAMETER LISTS feature, which includes the Timer Start and Timer Stop Values, is explained in Module 2.

		TIMER RANGE
	«	23 TIMER RANGE SELECTIONS
		( = SEC; = MIN; = HR; = DAY)
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Edge Triggered Operation - 2 Input

Time	Time
Start	Start
INPUT A
Time	Time
Stop	Stop

INPUT B

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Edge Triggered Operation - 2 Input, with Display Hold

Time Start,	Time Start,	Display
Display Update	Display Update	Update

INPUT A

Time Stop,

Display Update

INPUT B

RANGE MAXIMUM DISPLAY SELECTION DISPLAY RESOLUTION

SECONDS

1 SEC

0.1 SEC

0.01 SEC

0.001 SEC

MINUTES

1 MIN

0.1 MIN

0.01 MIN

0.001 MIN

HOURS

1 HR

0.1 HR

0.01 HR

0.001 HR

RANGE MAXIMUM DISPLAY SELECTION DISPLAY RESOLUTION

MINUTES/SECONDS

1 SEC

0.1 SEC

0.01 SEC

0.001 SEC

HOURS/MINUTES

1 MIN

0.1 MIN

0.01 MIN

0.001 MIN

HOURS/MINUTES/SECONDS

1 SEC

0.1 SEC

DAYS/HOURS/MINUTES

1 MIN

* - Timer is reset at Time Start edge.

TIMER INPUT FILTERING

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Provides a 50 msec debounce for the Timer Inputs (A and B). Select when using relays or switch contacts as a signal source.

TIMING DIRECTION

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TIMER INPUT OPERATION

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This parameter determines how the Timer Input Signals affect the “Run/Stop” status of the Timer. The timing diagrams below reflect a Sinking input setup (active low). A Sourcing input setup (active high) is available through plug jumper selection (see Section 2.0). In this case, the logic levels of the timing diagrams would be inverted.

The Timer can also be stopped using a Timer Stop Value or a Setpoint. This type of Stop condition is cleared when a Timer Reset occurs, or another start

edge is applied.
For	and	operation, Input B provides a level active Timer

Inhibit function. This function is also available through a User Input (see

Module 2). Timing diagrams are shown below for “			” through “		”
modes. The “	” through “	” modes	are identical except		the
timer display value is also reset at “Time Start” edges. In the “				”	and

“” modes, the timer display value remains held and only updates when a Timer Start (Input A) or Timer Stop (Input B) edge occurs.

,			*	,			*
Level Active (Gated) Operation					Edge Triggered Operation -1 Input
Time	Time	Time	Time		Time	Time	Time	Time
Start	Stop	Start	Stop		Start	Stop	Start	Stop
INPUT A					INPUT A
INPUT B - Timer Inhibit (Level Active)					INPUT B - Timer Inhibit (Level Active)

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Timing direction can be reversed through a User Input. (See Module 2.)

TIMER START VALUE

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The Timer returns to this value whenever a Timer Reset occurs. The value is entered in the same display format as the Timer Range selected. Non-zero values are normally used for “timing down” applications, but they can also provide an “offset” value when timing up.

TIMER STOP VALUE

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The Timer stops when this value is reached, regardless of the signal levels on

the Timer Inputs. Selecting will display the sub-menu where the Stop Value can be set or changed. The Stop Value is entered in the same display format as the Timer Range selected. This Stop condition is cleared when a Timer Reset occurs. Select if a Stop Value is not being used.

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* - Timer is reset at Time Start edge.

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