Overview

The Q45UR ultrasonic sensor features a single button for programming the sensing window limits. You may set the window

limits in one of two ways: programming two independent window limits, or defining a sensing distance set point, which is

centered within a window whose size is determined by the setting of DIP switches 2 and 3.

Independent Window Limits. Place the target at the desired position to set the first limit. Set the second limit using the

same procedure. To set two independent limits, the window must be at least 5 mm wide.

Sensing Distance Set Point. Teach the sensor the same set point for both window limits. This set point is centered

within an overall window size of 1, 2, 3, or 4 mm (0.04, 0.08, 0.12, or 0.16 inches), determined by the DIP switch

settings. The DIP switches are located inside the controller, under the inner cover.

Limits

N

1 2 3 4 5

3

4

5

1

2

6

Figure 1. Q45UR Features

1. Button for programming the sensing window limits

2. 5-Segment target position indicator (N = Near)

3. Green power indicator

4. Red signal indicator

5. Amber output indicator

6. Slots for removing the inner cover

Status Indicators

Status indicator LEDs are visible through the transparent, o-ring sealed acrylic top cover. Their function is as follows:

•

The green LED is solid when power is applied to the sensor and flashes to indicate an overloaded output.

•

The red LED flashes when an echo is received. The flash rate is proportional to the echo strength.

•

The amber LED is solid when the outputs are conducting.

The 5-segment moving dot LED indicator tracks the position of the target relative to the programmed window limits.

For Independent Window Limits ( > 5 mm windows). LED 1 flashes when the target is closer than the near window

limit. LED 5 flashes when the target is beyond the far window limit. LED 3 is on when the target is near the center of the

two limits. When all the LEDs are off, there is no target present.

For Sensing Distance Set Points (1, 2, 3, or 4 mm windows). LED 1 flashes when the target is closer than the near

window limit. LED 3 is on when the target is within the sensing window. LED 5 flashes when the target is beyond the far

sensing window. When all the LEDs are off, there is no target present.

Configuring a Sensor

Setting the DIP Switches

Function

DIP Switches

1

2

3

4

Normally Closed Output Mode (output energizes when

target is absent or outside the window limits)

ON

Normally Open Output Mode (output energizes when

target is sensed inside the window limits)

OFF *

1 mm Window (Sensing set point ± 0.5 mm)

OFF

OFF

2

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