Banner MINI-BEAM Expert Series - Manual (Page 4)

Sensor positions
threshold between
taught conditions
Output OFF Output ON
2nd Taught
Condition
1st Taught
Condition
Sensitivity is automatically set (and optimized) when teaching the sensor the ON and
OFF conditions. When the push button is clicked, the sensor samples each sensing
condition and registers it into memory. After the second sensing condition is regis-
tered, the MINI-BEAM Expert automatically sets the sensitivity to the optimum value
for the application, and then returns to RUN mode.
Push button (0.04 seconds ≤ “Click” ≤ 0.8 seconds); Remote line (0.04 seconds ≤ “T”
≤ 0.8 seconds)
1. Access TEACH mode.
Method Action
Via push button Press and hold push button until the bi-color (green/red) indicator begins to flash red, or turns OFF.
Via remote line No action required; sensor is ready for 1st sensing condition.
Push button method only: The yellow LED is on. The red LED pulses to indicate relative received signal strength. The sensor is ready
for the output ON condition.
2. Teach the first sensing condition.
Method Action
Via push button Present the first sensing condition and click the push button.
Via remote line Present the first sensing condition and single-pulse the remote line.
The yellow LED is off. The red LED pulses to indicate relative signal strength. The sensor registers the output ON condition and is
ready for the output OFF condition.
3. Teach the second sensing condition and return to RUN mode.
Method Action
Via push button Present the second sensing condition and click the push button.
Via remote line Present the second sensing condition and single-pulse the remote line.
If the teach is accepted the green LED is on (or flashes if the signal is close to the switching threshold) and the yellow LED is off until
the sensing condition changes; the sensor registers the output OFF condition, positions the threshold, and returns to RUN mode.
If the teach is not accepted, the yellow LED is on and the red LED pulses to indicate the relative received signal strength. The sensor
returns to its wait state and is ready for the first sensing condition.
NOTE: The sensor returns to RUN mode if the first TEACH condition is not registered within 90 seconds. TEACH mode may be cancelled
before either the first or second condition by holding the push button depressed for more than two seconds.
Enabling or Disabling the Push Button
In addition to its programming function, the remote line may be used to disable the push buttons for security. Disabling the push buttons
prevents undesired tampering with the sensor configuration settings.
1. Connect the sensor’s gray wire.
2. Four-pulse the remote line to enable or disable the push button.
The sensor toggles between enable and disable settings and returns to RUN mode.
Specifications
General Outputs
Supply Voltage and Current
10 to 30V dc (10% maximum ripple) at less than 45
mA, exclusive of load
Output Configuration
Bipolar: One current sourcing (PNP) and one current
sinking (NPN) open-collector transistor
MINI-BEAM SME312 Expert Series
4 www.bannerengineering.com - tel: 763-544-3164 P/N 055214 Rev. F