Aritech DDI602AM Manual De Instalación página 6

All available settings are listed in Table 3 below.
Table 3: Programming settings
Value
Option 1
1. Range (m) 10
2. Pulse count 1*
3. Detection LED OFF*
4. A-M Output Alarm and Fault*
* Default settings
Notes
•
The anti-mask output can be programmed to activate both
the 'Alarm and Fault' relays or just the 'Fault' relay.
• For Grade 3 compliance 'Alarm and Fault' must be
selected.
To change any of DDI602AM settings:
Note: Only the top PCB red LED is used in programming the
detector.
1. Press the programming button to select the option number
you want to change. Press once for range, twice for pulse
count, and three times for detection LED.
2. Wait until the programming (red) LED turns off (typically
4 seconds).
3. Count the number of times the programming LED flashes
to determine the current value for that option.
4. Press the programming button to select the value number
for the new setting. Example: To set the range to 30 m
press three times.
The programming LED blinks twice to indicate that the
new value was set.
Any alterations made to DDI602AM settings are stored in the
detector's nonvolatile memory.
Example
To change the detection LED setting from OFF to ON:
1. Press the programming button three times.
2. Wait until the programming LED turns off.
3. The programming LED flashes once to show that the
current value is off.
4. Press the programming button twice.
5. The programming LED flashes twice showing that the new
value has been stored. The detector returns to normal
operation.
Resetting options
To reset the detector to the default settings:
1. Remove the power from the detector.
2. Press and hold the programming button (see Figure 16,
item 2).
3. Apply the power to the detector.
4. After the programming LED flashes, release the
programming button.
You can reset the detector either before installation, with a PP3
battery, or by applying 12 V to the unit on site.
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2 3
20 30*
2
ON
Fault
Walk test
In walk test mode, the blue detection LED option is set to ON.
The detection LED lights each time the DDI602AM detects
your presence.
To enter the walk test mode, press the programming button
once. The unit can then be aligned. The detection LED lights
on the DDI602AM every time detection takes place.
The test mode ends automatically five minutes after last
detection. Alternatively, press the program button three times,
or remove and then reapply power to cancel the walk test
mode.
Note: When you conduct a walk test, make sure that the front
cover is in place. Do not conduct walk tests with the cover
removed.
Caution: The range of the detector increases without the
protective front cover. Therefore the front cover must be fitted
to establish the correct beam pattern. Use Table 3 to adjust the
range as necessary. Pan and tilt the lens module over the field
of view to obtain the correct coverage area (see Figure 8).
Fault/Anti-Mask Circuit
Fault/Anti-Mask technology prevents deliberate disabling of the
detector by monitoring for obstruction of the detection
equipment.
Operation
For the first two minutes after the sensor is installed or the
walktest is started the Fault/Anti-Mask relay can remain open.
After installation the detector needs to self-calibrate and this is
done by entering walk test mode. After 2 minutes of selecting
walk test the Anti-Mask will self-calibrate so the front cover
must be securely fitted. After 5 minutes of selecting walk test
the test will end.
After a Fault/Anti-Mask has been detected constantly for one
minute then the Fault/Anti-Mask alarm contact opens and
remains open until either the cause of masking is removed or
the detector performs a successful self-calibration.
If an internal fault condition is detected then only the Fault/A-M
relay operates. However in an Anti-Mask conditions both the
Fault/A-M relay AND the Alarm relay will operate. In this latter
condition the small red LED will illuminate.
Self-calibration takes place every evening during decreasing
ambient light and every morning during increasing light. This
compensates for natural build up of dirt on the front cover;
which could otherwise cause a false Fault/Anti-Mask detection.
After a Fault/Anti-Mask alarm and the mask is removed, the
Fault/Anti-Mask alarm contact will close. Then after a further
20 seconds the next detection will initiate a self-calibration.
Voltage Check
The unit self-tests the supply voltage and if out of specification
the Fault/Anti-Mask relay will open until the supply voltage is
within specification.
Remote LED Operation
The LEDs will get enabled when a negative voltage is applied
to the LED terminal.
P/N 146655999-1 (ML) • REV G • ISS 14DEC20