Health Mode Alarm

The Health Mode Alarm alerts you when preventative maintenance becomes necessary to ensure reliable sensing. The

Health Mode output 2 is Active when the system is OK and operating normally. Health Mode output 2 becomes Inactive

when the system is in a marginal state because of contamination. The system still operates normally and can detect small

objects, but is nearing the alarm state. When the system is completely contaminated and unable to ensure reliable

sensing, the system goes into the alarm state. In the alarm state, the discrete output 1 is forced to the blocked state and

can no longer be used to detect small objects.

The sensor may enter Health Mode Alarm for any of these reasons:

1. When first powered up; the fiber optic array may already be contaminated

2. If the Window SET procedure fails, indicating the fiber optic array is contaminated and the sensor could not set a

valid clear-state light level for reliable detection

3. If the fiber optic array is contaminated enough that the auto compensation tracking algorithm cannot sufficiently

adjust the thresholds to ensure reliable detection

4. If the fiber optic array is blocked for more than 2 seconds

Return the system to normal operation by cleaning the fiber optic array and performing a Window SET to reset the clear-

state light level (see Single-Point Window SET on page 7).

Display Value Outputs and Indicators

System Status

25 to 100

Discrete output 1: Operational

Health Mode output 2: Active

Indicators: Arrow Icons 1 & 2 GREEN

OK: system operating normally

1 to 20

Discrete output 1: Operational

Health Mode output 2: Inactive

Indicators: Arrow Icon 1 Green; Arrow Icon 2 Red

Marginal: System operating normally;

preventative maintenance

recommended

0

Discrete output 1: Forced to Blocked State (i.e. in dark

operate, the output is conducting)

Health Mode output 2: Inactive

Indicators: Arrow Icons 1 & 2 Red

Alarm: System not operational; system

maintenance required

Programming Options

Light/Dark Operate Selection. Toggle to select the condition for which the output will conduct: when the object is

present or when the object is absent.

Threshold Offset Percentage. 2%, 3%, 4%, 5%, 10%

Dynamic Event Stretcher (DES) Selection. The output is held ON (OFF in Light Operate) for a percentage of time

longer than the detection event duration.

Options: 0%, 25%, 33%, 50%, 100%

(e.g., If the Dynamic Event Stretcher was set at 50%, a 1 ms event would be stretched to 1.5 ms)

Display Orientation. Normal or inverted

Display Mode. Health Mode (100%–0%); Percentage Blocked (0%–100%); Signal Level (ADC value); or Counter Mode

(0–9999)

Power Level/Speed Selection. High-Speed (HS) (150 µs response, 50 µs repeatability); High-Power (HP) (225 µs

response, 75 µs repeatability); or Super High-Power (SHP) (300 µs response, 100 µs repeatability)

3 Sensor display must be in Health Mode (see Sensor Setup on page 4)

D10 Expert Series - Small Object Counter

P/N 146132 Rev. D

www.bannerengineering.com - tel: 763-544-3164

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