DATASENSOR US18 Instruction Manual

Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - e.mail: info@ctiautomation.net

US18 SERIES

- analog output -

Programming push-button (TEACH)

This push-button allows to program the reading points of the sensor.

PWR LED indicator Indicates

OFF Power is OFF.

ON Red Target is weak or outside sensing range.

ON Green Sensor is operatine normally, good target.

OUT LED indicator Indicates

OFF Target is outside windows limits

ON Yellow Target is within windows limits

ON Red (solid) In TEACH mode, waiting for first limit

ON Red (flashing) In TEACH mode, waiting for second limit

BROWN

BLUE

WHITE

BLACK

GREY

M12 - 5 POLE CONNECTOR

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:

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:

Temperature Compensation

Changes in air temperature affect the speed of sound, which in turn affects the distance reading 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 US18 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 1.8% over the -20° to +60°C range.

NOTES:

• 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.

• The temperature warmup drift upon power-up is less than 1.7% of the sensing distance.

After 10 minutes, the apparent distance will be within 0.3% of the actual position. After 25 minutes, the sensing distance will be stable.

ultrasonic sensors

INSTRUCTION MANUAL

CONTROLS

CONNECTIONS

10 … 30 Vdc

0 V

4…20 mA or 0…10 Vdc

5…30 Vdc (fast) / 0…2 Vdc (slow)

REMOTE TEACH (0…2 Vdc)

PRINCIPLES OF OPERATION

D = Distance from the sensor to the target C = Speed of sound in air t = Transit time for the ultrasonic pulse

Cm/s = Speed of sound in meters per second Tc = Temperature in °C

TECHNICAL DATA

US18-PA

Power supply: 10 … 30 Vdc (limit values), reverse polarity protection Ripple: Consumption (load current excluded): Output configurations: 0…10 Vcc (voltage output) or

Outputs:

Output Response time (for a 95% step change):

Max. switching frequency: 200 Hz (fast), 16 Hz (slow) Range indicator: (Red/Green)

Teach/Output indicator: (Yellow/Red)

Setting: Sensing window limits: TEACH-Mode programming of

Delay at Power-up: 300 ms Temperature effect: 0.02% of distance/°C Temperature warmup drift: less than 1.7% of sensing distance upon power-up Linearity (note A):

Resolution (note A): 2.5 ms response: 1 mm

Minimum window size: 5 mm Ultrasonic emission: 300 KHz, rep. rate 2.5 ms Remote teach input: Operating temperature: -20 … 60 °C Storage temperature: -25 … 70 °C Maximum relative humidity: 100% Electrical shock protection: Class 2 Operating distance (typical values): 30…300 mm Vibrations: 0.5 mm amplitude, 10…55 Hz frequency, for every axis

Reference standard: EN60947-5-2 Shock resistance: 11 ms (30 G) 6 shock for every axis (EN60068-2-27) Housing material: Thermoplastic polyester Threaded barrel material: ABS/PC Push-button material: Santoprene Light pipes material: Acrylic Mechanical protection: IP67 Connections: M12 - 5 pole connector Weight: 25 g

AXIAL VERSION

≤ 2 Vpp

65mA max., 40 mA typical @ 25 Vcc

4…20 mA (current output)

Analog voltage output: 2.5 KΩ minimum load resistance. Minimum supply for a full 10V output is 12Vdc (for supply voltages between 10 and 12V, out max is at least V supply - 2) Analog current output: 1KΩ max @ 24V input. Max load resistance = (Vcc-4)/0.02 ohms For current output (4-20mA) models, ideal results are achieved whwn the total load resistance R = [(Vin-3)/0.020]Ω. Example, at Vin = 24V, R ≈ 1KΩ (1watt) A worst case shift of 1% of sensing distance is caused by operating the sensor at Vin = 30Vdc and R = 0Ω

2.5 ms (Fast): pin 4 (black wire) at 5…30 Vdc 30 ms (Slow): pin 4 (black wire) at 0…2 Vdc

(or not connected)

Green Target is within sensing range Red Target is outside sensing range OFF Sensing power is OFF Yellow Target is within sensing range OFF Target is outside taught window limits Red Sensor is in Teach mode

overload and short circuit protection

near and far window limits may be set using the push

button or remotely via TEACH input

2.5 ms response: ±1 mm 30 ms response: ±0.5 mm

30 ms response: 0.5 mm

Impedence: 12 KΩ

(EN60068-2-6)

US18-PR

RADIAL VERSION

DIMENSIONS

AXIAL VERSION

TEACH PUSH-BUTTON

RADIAL VERSION

TEACH PUSH-BUTTON

PWR LED

OUT LED

PWR LED

OUT LED

95.1

90.9

53.8

3.6

8.5

Two TEACH methods may be used to program the sensor:

• Teach individual minimum and maximum limits.

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

The sensor may be programmed either via its push button, or via a remote switch. Remote programming may be used to disable the push button, preventing unauthorized personnel from adjusting the programming settings. To access this feature, connect the Remote Teach wire of the sensor to 0 - 2V dc, with a remote programming switch between the sensor and the voltage. NOTE: The impedance of the Remote Teach input is 12 KΩ.

Programming is accomplished by following the sequence of input pulses (see chap. “Normally Open/Normally Closed operation select”). The duration of each pulse (corresponding to a push button “click”), and the period between multiple pulses, are defined as “T”:

Analog Output Slope

The sensor may be programmed for either a positive or a negative output slope, based on which limit is taught first (see pictures).

• If the Near limit is taught first, the slope will be positive.

• If the Far limit is taught first, the slope will be negative.

The analog output signal, is automatically distributed over the width of programmed sensing window. In the event of signal loss, the analog output goes to 3.6mA or 0Vdc, which may be used to trigger an alarm.

Teaching Minimum and Maximum Limits

Programming

mode

TEACH

First limit

TEACH

Second limit

NOTE: The duration of each pulse (corresponding to a push button “click”), and the period between multiple pulses, are defined “T” (0.04 s < T < 0.8 s).

SENSOR PROGRAMMING

0.04 seconds < T < 0.8 seconds

TEACH interface

Programming procedure

TEACH push-button

Push and hold TEACH

push-button

Position the target for

the first limit

“Click” the TEACH

push-button

Position the target for

the second limit

“Click” the TEACH

push-button

Remote line

(remote teach)

No action required;

sensor is ready for

1st limit teach

Position the target

for the first limit

Single-pulse

the remote line

(0.04 s < T < 0.8 s)

Position the target

for the second limit

Single-pulse

the remote line

(0.04 s < T < 0.8 s)

Indicators LED

OUT LED: ON, RED PWR LED:

ON Green (good signal) ON Red (no signal)

PWR LED:

must be ON Green

Teach accepted:

(Sensor learns the 0Vdc or 4mA limit)

OUT LED, flashing Red

Teach unacceptable: OUT LED, ON Red

PWR LED:

must be ON Green

Teach accepted:

(Sensor learns the 10Vdc or 20mA limit)

OUT LED, Yellow or OFF

Teach unacceptable: OUT LED, flashing Red

Teaching limits using the Auto-Window feature

Teaching the same limit twice for the same output automatically centers a 100mm window on the taught position (± 50 mm). The analog output will be centered on the taught position at approximately 5V or 12mA.

Programming

mode

TEACH

Limit

Re-TEACH

Limit

Push and hold TEACH

Programming procedure

TEACH push-button

push-button

Position the target for

the center of window

“Click” the TEACH

push-button

Without moving the

target, “click” the

TEACH push-button

again

Remote line

(remote teach)

No action required;

sensor is ready for 1st

limit teach

Position the target for

the center of window

Single-pulse

the remote line

(0.04 s < T < 0.8 s)

Without moving the

target, single-pulse the

remote line again

(0.04 s < T < 0.8 s)

Indicators LED

OUT LED: ON, Red PWR LED:

ON Green (good signal) ON Red (no signal)

PWR LED:

must be ON Green

Teach accepted: OUT LED, flashing, Red

Teach unacceptable: OUT LED, ON Red

Teach accepted: OUT LED, Yellow or OFF

Teach unacceptable: OUT LED, flashing, Red

General Notes on Programming

The sensor will return to RUN mode if the first TEACH condition is not registered within 120 seconds. After the first limit is taught, the sensor will remain in PROGRAM mode until the TEACH sequence is finished. To exit PROGRAM mode without saving any changes, press and hold the programming push button > 2 seconds (before teaching the second limit). The sensor will revert to the last saved program.

TEACH push-button lockout

Enables or disables the push button to prevent unauthorized personnel from adjusting the program settings.

TEACH push-button

TEACH

Push-

button

lockout

DECLARATION OF CONFORMITY

We DATASENSOR S.p.A. declare under our sole responsibility that these products are conform to the 2004/108 CEE, 73/23 CEE Directives and successive amendments.

WARRANTY DATASENSOR S.p.A. warrants its products to be free from defects. DATASENSOR S.p.A. will repair or replace, free of charge, any product found to be defective during the warranty period of 36 months from the manufacturing date. This warranty does not cover damage or liability deriving from the improper application of DATASENSOR products.

DATASENSOR S.p.A. Via Lavino 265 40050 Monte S. Pietro - Bologna - Italy Tel: +39 051 6765611 Fax: +39 051 6759324 http://www.datasensor.com e-mail: info@datasensor.com

DATASENSOR S.p.A. cares for the environment: 100% recycled paper. DATASENSOR S.p.A. reserves the right to make modifications and improvements without prio notification.

Not available

via push-button

Programming procedure

Remote line

(remote teach) 0.04 s < T < 0.8 s

Four impulse the remote line

826002202 Rev.B

Enable/Disable

Function

Push-button are either

enabled or disabled,

depending on

condition..

Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - e.mail: info@ctiautomation.net

TECHNICAL DATA

US18 SERIES

- Digital output-

Programming push-button (TEACH)

This push-button allows to program the reading points of the sensor.

PWR LED indicator Indicates

OFF Power is OFF.

ON Red Target is weak or outside sensing range.

ON Green Sensor is operatine normally, good target.

OUT LED indicator Indicates

OFF Target is outside windows limits (normally open operation)

ON Yellow Target is within windows limits (normally open operation)

ON Red (solid) In TEACH mode, waiting for first limit

ON Red (flashing) In TEACH mode, waiting for second limit

BROWN

WHITE

BLACK

GREY

BLUE

M12 - 5 POLE CONNECTOR

ultrasonic sensors

INSTRUCTION MANUAL

CONTROLS

CONNECTIONS

10 … 30 Vdc

NPN OUTPUT

PNP OUTPUT

REMOTE TEACH (0…2 Vdc)

0 V

US18-PA

Power supply: 10 … 30 Vdc (limit values), reverse polarity protection Ripple: Consumption (load current excluded): Outputs: NPN and PNP (N.O. or N.C. selectable) Output current: 100 mA max. overload and short circuit protection Output saturation voltage:

Response time: 5ms Max. switching frequency: 100 Hz Range indicator: (Red/Green)

Teach/Output indicator: (Yellow/Red)

Setting: Sensing window limits: TEACH-Mode programming of

Delay at Power-Up: 300 ms Temperature effect: 0.02% of distance/°C Temperature warmup drift: Less than 1.7% of sensing distance upon power-up Repeatability: 0.5 mm Minimum window size: 5 mm Hysteresis: 0.7 mm Ultrasonic emission: 300 KHz, rep. rate 2.5 ms Remote teach input: Operating temperature: -20 … 60 °C Storage temperature: -25 … 70 °C Maximum relative humidity: 100% Electrical shock protection: Class 2 Operating distance (typical values): 30…300 mm Vibrations: 0.5 mm amplitude, 10…55 Hz frequency, for every axis

AXIAL VERSION

TEACH PUSH-BUTTON

AXIAL VERSION

65mA max., 40 mA typical @ 25 Vcc

PNP < 1.2 V @ 10 mA, < 1.6 V @ 100 mA

NPN < 200 mV @ 10 mA, < 600 mV @ 100 m A

near and far window limits may be set using the push

button or remotely via TEACH input

DIMENSIONS

PWR LED

OUT LED

90.9

PRINCIPLES OF OPERATION

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

Temperature Effects

Temperature Compensation

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.

• The temperature warmup drift upon power-up is less than 1.7% of the sensing distance.

After 10 minutes, the apparent switchpoint will be within 0.3% of the actual position. After 25 minutes, the sensing position will be stable.

D = Distance from the sensor to the target C = Speed of sound in air T = Transit time for the ultrasonic pulse

Cm/s = Speed of sound in meters per second Tc = Temperature in °C

RADIAL VERSION

TEACH PUSH-BUTTON

PWR LED

OUT LED

95.1

≤ 2 Vpp

Impedence: 12 KΩ

(EN60068-2-6)

53.8

US18-PR

RADIAL VERSION

3.6

8.5

SENSOR PROGRAMMING

Two TEACH methods may be used to program the sensor:

• Teach individual minimum and maximum limits.

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

The sensor may be programmed either via its push button, or via a remote switch.

Remote programming may be used to disable the push button, preventing unauthorized personnel from adjusting the programming settings. To access this feature, connect the Remote Teach wire of the sensor to 0 - 2V dc, with a remote programming switch between the sensor and the voltage. NOTE: The impedance of the Remote Teach input is 12 KΩ.

Teaching Minimum and Maximum Limits

Programming

mode

TEACH

First limit

TEACH

Second limit

NOTE: The duration of each pulse (corresponding to a push button “click”), and the period between multiple pulses, are defined “T” (0.04 s < T < 0.8 s).

TEACH push-button

Push and hold TEACH

Position the target for

“Click” the TEACH

Position the target for

“Click” the TEACH

0.04 seconds < T < 0.8 seconds

TEACH interface

Programming procedure

push-button

the first limit

push-button

the second limit

push-button

Remote line

(remote teach)

No action required;

sensor is ready for 1st

limit teach

Position the target for

the first limit

Single-pulse

the remote line

(0.04 s < T < 0.8 s)

Position the target for

the second limit

Single-pulse

the remote line

(0.04 s < T < 0.8 s)

Indicators LED

OUT LED: ON, RED PWR LED:

ON GREEN (good signal) ON RED (no signal)

PWR LED:

must be ON GREEN

Teach accepted:

OUT LED, flashing RED

Teach unacceptable: OUT LED, ON RED

PWR LED:

must be ON GREEN

Teach accepted:

OUT LED, YELLOW or OFF

Teach unacceptable: OUT LED, flashing RED

See chap. “Normally Open/Normally Closed Operation Select.”

Teaching limits using the Auto-Window feature

Teaching the same limit twice for the same output automatically centers a 10 mm window on the taught position (± 5 mm).

Programming

mode

TEACH

Re-TEACH

Limit

General Notes on Programming

Normally Open/Normally Closed Operation Select

The sensor can be configured for either normally open or normally closed via the remote teach wire (gray). A series of three pulses on the line will toggle between normally open and normally closed 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.

Toggle

between N.O./N.C. operation

TEACH push-button lockout

Enables or disables the push button to prevent unauthorized personnel from adjusting the program settings.

TEACH

Push-

button

lockout

DECLARATION OF CONFORMITY

We DATASENSOR S.p.A. declare under our sole responsibility that these products are conform to the 89/336 CEE, 73/23 CEE Directives and successive amendments.

DATASENSOR S.p.A. Via Lavino 265 40050 Monte S. Pietro - Bologna - Italy Tel: +39 051 6765611 Fax: +39 051 6759324 http://www.datasensor.com e-mail: info@datasensor.com

DATASENSOR S.p.A. cares for the environment: 100% recycled paper. DATASENSOR S.p.A. reserves the right to make modifications and improvements without prior notification.

Push and hold TEACH

See chap. “Normally Open/Normally Closed Operation Select.”

TEACH push-button

Not available

via push-button

TEACH push-button

Not available

via push-button

Programming procedure

TEACH push-button

push-button

Position the target for

the center of window

“Click” the TEACH

push-button

Without moving the

target, “click” the

TEACH push-button

again

Programming procedure

Remote line

(remote teach)

No action required;

sensor is ready for 1st

limit teach

Position the target for

the center of window

Single-pulse

the remote line

(0.04 s < T < 0.8 s)

Without moving the

target, single-pulse the

remote line again

(0.04 s < T < 0.8 s)

Remote line

(remote teach) 0.04 s < T < 0.8 s

Triple-pulse the remote line

Remote line

(remote teach) 0.04 s < T < 0.8 s

Four impulse the remote line

826002192 Rev.B

Indicators LED

OUT LED: ON, RED PWR LED:

ON GREEN (good signal) ON RED (no signal)

PWR LED:

must be ON GREEN

Teach accepted: OUT LED, flashing, RED

Teach unacceptable: OUT LED, ON RED

Teach accepted: OUT LED, YELLOW or

OFF

Teach unacceptable: OUT LED, flashing, RED

N.O./N.C. function

Either normally open or

normally closed

operation is selected,

depending on previous

Enable/Disable

Push-button are either

enabled or disabled,

depending on

condition.

Function

condition..