Pulsafeeder Pulsar DLC - Manual (Page 62)

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7.2.12 Alarm Relay
This sub-menu sets up the alarm relay outputs as normally open or normally closed.
These screens configure both the high voltage output and low voltage switch (transistor).
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Alarm Relay Set Up Procedure
1. Press [MENU]. Press [UP] or [DOWN] until {–MENU– / ALARM RELAY} is displayed. Press
[ENTER] to continue to program the Alarm Relay sub-menu.
–MENU–
ALARM RELAY
2. The alarm relay can be configured as {NORMALLY OPEN}. With this setting the relay will CLOSE
when the alarm output is activated.
RELAY OUTPUT
NORMALLY OPEN
If you would rather have the relay OPEN when the output is activated, press [UP] to change the
configuration to {NORMALLY CLOSED}.
RELAY OUTPUT
NORMALLY CLOSED
When you have finished making your selection, press [ENTER] to accept.
3. The display returns to the {–MENU– / ALARM RELAY} screen.
7.2.13 Analog Mode
Use the Analog Mode setting to activate or de-activate the analog mode and set the number of active
signals. If deactivated, the analog mode will not appear when the [MODE] key is pressed. If you are
not using the analog input (i.e., you have made no connections to J4-1, J4-2, and J4-7, J4-8) but have
the Analog Mode set to ACTIVE then any time you press [MODE], by default the DLC will generate
an {ANALOG SIG FAIL} alarm. De-activating Analog Mode prevents this.
You can modify the way the DLC responds to a signal. You can set the number of samples to be
averaged (within a range of 1 to 100 samples), and you can set the interval, in number of samples, that
the DLC should adjust the stroke setting to the specified average (within a range of 1 to 100 samples).
The DLC samples the Analog Input every 0.25 seconds. The default value for the number of samples
is 20 and the default value for the sample interval is 20. Therefore, the DLC will average the last 20
samples and make an adjustment every 5 seconds (20*.25=5.0). Here are some general guidelines to
assist you when adjusting these values:
− Increase the {SAMPLE SIZE} value to reduce the effect of electrical noise on the Analog Input.
− Decrease the {SAMPLE SIZE} value to increase sensitivity to changes in the Analog Input.
− Increase the {UPDATE EVERY / XX SAMPLES} value if the DLC is constantly adjusting the
stroke setting (often resulting in a {DUTY CYCLE} alarm).
− Decrease the {UPDATE EVERY / XX SAMPLES} value to increase tracking response.
In most situations, the default values will be adequate.