Banner T30UX User Manual

U-GAGE® T30UX Series with Discrete Output

Ultrasonic Sensor with TEACH-Mode Configuration

•1, 2 and 3 m (3.28, 6.56, and 9.84 ft) versions with short dead zones (10% of max range)

•Built-in temperature compensation

•Fast, easy-to-use TEACH-Mode programming; no potentiometer adjustments

•Remote TEACH for security and convenience

•Wide operating temperature range of −40° to +70° C (−40° to +158° F)

•Outputs can be set for either NPN (sinking) or PNP (sourcing), Normally Open (N.O.) or Normally Closed (N.C.)

•Compact, self-contained, right-angle sensor package with fully encapsulated electronics

								ULTRASONIC
	Models
	Models	Range and Frequency	Cable			Supply Voltage	Discrete Output	Response Time
				1
	T30UXDA	100 mm to 1 m (3.9 in to 39 in)						45 ms
		224 kHz
	T30UXDB	200 mm to 2 m (7.8 in to 78 in)	Standard 2 m			10 to 30V dc	NPN, PNP, NO,	92 ms
		174 kHz	(6.5 ft) cable				NC, Selectable
	T30UXDC	300 mm to 3 m (11.8 in to 118 in)						135 ms
		114 kHz

WARNING: Not To Be Used for Personnel Protection

Never use this device as a sensing device for personnel protection. Doing so could lead to serious injury or death. This device does not include the self-checking redundant circuitry necessary to allow its use in personnel safety applications. A sensor failure or malfunction can cause either an energized or deenergized sensor output condition.

1Only standard 2 m (6.5 ft) cable models are listed. For 4-Pin Euro-Style integral QD, add suffix “Q8” to the model number (for example, T30UXDAQ8). For 150 mm (6 in) PUR pigtail cable with 4-Pin threaded Euro-Style QD, add suffix “QPMA” to the model number (for example, T30UXDAQPMA). For 9 m (30 ft) cable, add suffix “W/30” to the model number (for example, T30UXDA W/30). A model with a QD connector requires a mating cable; see Quick-Disconnect Cables on page 11.

P/N 138381_web	8/19/2013
Rev. G

Overview

The U-GAGE® T30UX is an easy-to-use ultrasonic sensor with extended range and built-in temperature compensation. Simple push button configuration provides flexibility for a variety of applications.

Easy-to-see indicator LEDs communicate the status of the sensor. The Green “Power” LED ON indicates that the sensor is in Run Mode (the sensor’s normal operating condition). The Red “Signal” LED indicates the target signal strength. The Amber “Output” LED indicates that the output is enabled and the sensor is receiving a signal within the window limits (depending on NO or NC). The Amber “Mode” LED indicates the currently selected mode.

U-GAGE® T30UX Series with Discrete Output

Power ON/OFF			Signal Strength
LED (Green)			LED (Red)
Discrete Output
LED (Amber)							Mode LEDs
							(Amber)

Figure 1. Features

Principles of Operation

Ultrasonic sensors emit one or multiple pulses of ultrasonic energy, which travel through the air at the speed of sound. A portion of this energy reflects off the target and travels back to the sensor. The sensor measures the total time required for the energy to reach the target and return to the sensor. The distance to the object is then calculated using the following formula: D = ct ÷ 2

D = distance from the sensor to the target c = speed of sound in air

t = transit time for the ultrasonic pulse

To improve accuracy, an ultrasonic sensor may average the results of several pulses before outputting a new value.

Temperature Effects

The speed of sound is dependent upon the composition, pressure and temperature of the gas in which it is traveling. For most ultrasonic applications, the composition and pressure of the gas are relatively fixed, while the temperature may fluctuate.

In air, the speed of sound varies with temperature according to the following approximation:

In metric units: Cm/s = 20 ¥			In English units:	Cft/s = 49 ¥
	273 + TC				460 + TF
Cm/s = speed of sound in meters per second			Cft/s = speed of sound in feet per second
TC = temperature in °C			TF = temperature in °F

Temperature Compensation

Changes in air temperature affect the speed of sound, which in turn affects the total time for the echo measured by the sensor. An increase in air temperature shifts both sensing window limits closer to the sensor. Conversely, a decrease in air temperature shifts both limits farther away from the sensor. This shift is approximately 3.5% of the limit distance for a 20° C change in temperature.

The T30UX series ultrasonic sensors are temperature compensated. This reduces the error due to temperature by about 90%. The sensor will maintain its window limits to within 2.2% over the -40° to +70° C (−40° to +158° F) operating range of the sensor.

NOTE:

•Exposure to direct sunlight can affect the sensor’s ability to accurately compensate for changes in temperature.

•If the sensor is measuring across a temperature gradient, the compensation will be less effective.

Sensor Configuration

Two TEACH methods may be used to configure the sensor:

•Teach individual minimum and maximum limits, or

•Use Auto-Window feature to center a sensing window around the taught position.

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		Rev. G

U-GAGE® T30UX Series with Discrete Output

The sensor may be configured either via its push button, or via a remote switch. Remote configuration also may be used to disable the push button, preventing unauthorized personnel from adjusting the configuration settings. To access this feature, connect the white wire of the sensor to 0V dc, with a remote configuration switch between the sensor and the voltage.

Configuration is accomplished by following the sequence of input pulses. The duration of each pulse (corresponding to a push button “click”), and the period between multiple pulses, are as “T”: 0.04 seconds < T < 0.8 seconds

Remote line configuration requires a greater than 1 second pause between pulse sequences.

Mode Setup - Output Configuration

Sensors can be set up for either NPN (sinking) or PNP (sourcing). In addition, the user can select between Normally Open (N.O.) and Normally Closed (N.C.) operation. Normally Open is defined as the output energizing when the target is present. Normally Closed is defined as the output energizing when the target is absent (see Figure 2. Teaching independent minimum and maximum limits on page 4).

Push Button

Remote Line

0.04 sec. < “click” < 0.8 sec.

0.04 sec. < T < 0.8 sec.

Procedure

Result

Procedure

Result

Output Con-

Push and hold

Power LED: OFF

Double-pulse the remote line

Power LED: OFF

figuration

MODE push button

Mode LED: Flashing

T

T

Mode LED: Flashing

Mode

for > 2 seconds

Amber shows previ-

T

Amber shows previously

ously selected mode

selected mode

Select Out-

“Click” the MODE

Power LED: OFF

• Single-pulse for NPN - Nor-

Power LED: ON Green

put

push button to cycle

Mode LED: Flashes to

mally Open

Mode LED: ON to indi-

to correct selection:

indicate currently se-

• Double-pulse for NPN - Nor-

cate currently selected

• NPN - Normally

lected mode (120 sec-

mally Closed

mode (Sensor returns to

Open

ond time out

)

• Triple-pulse for PNP - Nor-

RUN mode)

2

• NPN - Normally

mally Open

Closed

• Quad-pulse for PNP - Normal-

• PNP - Normally

ly Closed

Open

• PNP - Normally

Closed

Save and

Push and hold

Power LED: ON

No action required; sensor will re-

None

Activate

MODE push button

Green

turn to Run Mode

Mode

for > 2 seconds

Mode LED: ON Amber

for selected mode

Teaching Minimum and Maximum Limits

General Notes on Teaching

•The sensor will return to RUN mode if the first TEACH condition is not registered within 120 seconds after the initial 2 second hold on the Discrete push button.

•To exit TEACH mode without saving any changes, press and hold the Discrete push button or remote line longer than 2 seconds (before teaching the second limit). The sensor will revert to the last saved limits.

•After the first limit is taught, the sensor will remain in TEACH mode until the TEACH sequence is finished or exited by a 2 second hold on the Discrete push button or remote line.

2 The sensor will revert to previously saved configuration and return to RUN mode if TEACH is inactive for 120 seconds after the initial 2 second hold on push button

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Rev. G

U-GAGE® T30UX Series with Discrete Output

Normally Open Operation

Minimum			Maximum
Limit				Limit
Output OFF		Output ON			Output OFF

Normally Closed Operation

Minimum

Maximum

Limit

Limit

Output ON

Output OFF

Output ON

Figure 2. Teaching independent minimum and maximum limits

Push Button

Remote Line

0.04 sec. < “click” < 0.8 sec.

0.04 sec. < T < 0.8 sec.

Procedure

Result

Procedure

Result

TEACH

Push and hold the

Power LED: OFF

No action required; sensor is ready

None

Discrete push button

Output LED: ON

for first limit teach

Mode

longer than 2 sec-

onds

Position the target for the first

Signal LED: Must be

Position the target for the first limit

Signal LED: Must be

limit (120 second time out)

ON Red or Flashing

ON Red or Flashing

Red

Red

3

3

Teach First

“Click” the Discrete

Teach Accepted

Single-pulse the remote line

Teach Accepted

Limit

push button

Power LED: OFF

T

Power LED: OFF

Output LED: Flashing

Output LED: Flashing

Teach Not Accepted

Teach Not Accepted

Output LED: ON

Power LED: ON

Position the target for the sec-

Signal LED: Must be

Position the target for the second

Signal LED: Must be

ond limit (no time out)

ON Red or Flashing

limit (no time out)

ON Red or Flashing

Red

Red

“Click” the Discrete

Teach Accepted

Single-pulse the remote line

Teach Accepted

Teach Sec-

push button

Output LED: ON or

T

Output LED: ON or

OFF, depending on

OFF, depending on

ond Limit

NO or NC Mode

NO or NC Mode

Power LED: ON

Power LED: ON

Teach Not Accepted

Teach Not Accepted

Output LED: Flashing

Output LED: Flashing

Power LED: OFF

Power LED: OFF

3 Sensor will not Teach or indicate “Teach Not Accepted” when there is no signal present (Signal LED Red or Flashing Red)

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		Rev. G