SICK 6029834 UC12-12235 Complementary NPN Ultrasonic Sensor

Technical Overview

The SICK UC12-12235 detects natural objects using ultrasonic echoes within a 55–250 mm operating range. Its 350 mm limiting range is distinct from the operating range,and detection depends on target reflection,size and alignment. Two complementary NPN outputs provide opposite switching states for a taught distance condition. Distance-to-object,window and background modes adapt evaluation through a local teach button that can be deactivated. The sensor specifies30 ms response,25 Hz switching and8 ms output time. Internal temperature compensation reaches its optimum after30 minutes of operation. A rectangular zinc-diecast housing,green/orange status indication,M12 four-pin male connector and IP65/IP67 protection support installation on machinery.

55–250 mm ultrasonic sensor with complementary NPN outputs,local teach-in,temperature compensation and M12 four-pin connection.

Key Features

55–250 mm operating range;350 mm limiting range

Two complementary NPN outputs(Q/invertedQ);maximum output current≤500 mA

Distance-to-object,window and background switching modes

Local teach-in button;button deactivation and factory reset

30 ms response;25 Hz switching;8 ms output time

Typical500 kHz ultrasonic frequency;target-dependent detection area

Internal temperature compensation;optimum after30 minutes

10–30 V DC;≤1.2 W without load;initialization<300 ms

M12 four-pin male connector;M4 mounting thread,4 mm deep

IP65/IP67 zinc-diecast housing;−25 to+70 °C operation

Technical Specification Matrix

Parameter	Value
Functional principle	Ultrasonic object/distance detection
Target	Natural objects
Operating range	55–250 mm
Limiting range	350 mm;distinct from operating range
Detection area	Depends on reflection,size and alignment;reference diagrams use aligned10 ×10 mm plate andØ10 mm cylindrical bar
Resolution	≥0.1 mm
Repeatability	±0.15% of current measured value;minimum value≥resolution
Measurement accuracy	±1% of current measured value
Temperature compensation	Internal;optimum operating point after30 min for this non-E variant
Response time	30 ms
Switching frequency	25 Hz
Output time	8 ms
Ultrasonic frequency	Typical500 kHz;acoustic frequency
Digital outputs	2 ×NPN,complementary Q/invertedQ;maximum output current≤500 mA
Switching modes	Distance to object(DtO),window(Wnd),object between sensor and background(ObSB)
Teach-in	Local teach button;can be deactivated;factory reset available
Hysteresis	2 mm
Power supply	10–30 V DC;limit values;reverse-polarity protected
Supply network requirement	Short-circuit protected network,max8 A
Power consumption	≤1.2 W without load
Initialization time	<300 ms
Status indication	Green:device ready;orange:digital output active
Connection	M12 four-pin male connector
Pin assignment	1BN=L+;3BU=M/0 V;4BK=Q/invertedQ;2WH=invertedQ/Q;complementary pair
Mounting	M4 threaded hole,4 mm deep;Ø4.2 mm fixing hole
Sending axis	Straight
Housing material	Zinc diecast
Transducer materials	Polyurethane foam and glass epoxy resin
IP rating	IP65/IP67
Protection class	III
Operating temperature	−25 to+70 °C
Storage temperature	−40 to+85 °C
MTTFD	101 years
DCavg	0%
Physical Weight (kg)	0.075

Parameter

Value

Functional principle

Ultrasonic object/distance detection

Target

Natural objects

Operating range

55–250 mm

Limiting range

350 mm;distinct from operating range

Detection area

Depends on reflection,size and alignment;reference diagrams use aligned10 ×10 mm plate andØ10 mm cylindrical bar

Resolution

≥0.1 mm

Repeatability

±0.15% of current measured value;minimum value≥resolution

Measurement accuracy

±1% of current measured value

Temperature compensation

Internal;optimum operating point after30 min for this non-E variant

Response time

30 ms

Switching frequency

25 Hz

Output time

8 ms

Ultrasonic frequency

Typical500 kHz;acoustic frequency

Digital outputs

2 ×NPN,complementary Q/invertedQ;maximum output current≤500 mA

Switching modes

Distance to object(DtO),window(Wnd),object between sensor and background(ObSB)

Teach-in

Local teach button;can be deactivated;factory reset available

Hysteresis

2 mm

Power supply

10–30 V DC;limit values;reverse-polarity protected

Supply network requirement

Short-circuit protected network,max8 A

Power consumption

≤1.2 W without load

Initialization time

<300 ms

Status indication

Green:device ready;orange:digital output active

Connection

M12 four-pin male connector

Pin assignment

1BN=L+;3BU=M/0 V;4BK=Q/invertedQ;2WH=invertedQ/Q;complementary pair

Mounting

M4 threaded hole,4 mm deep;Ø4.2 mm fixing hole

Sending axis

Straight

Housing material

Zinc diecast

Transducer materials

Polyurethane foam and glass epoxy resin

IP rating

IP65/IP67

Protection class

III

Operating temperature

−25 to+70 °C

Storage temperature

−40 to+85 °C

MTTFD

101 years

DCavg

Physical Weight (kg)

0.075

Industrial Applications

1. Checking a fixture surface at a taught distance

A fixture can present a sufficiently reflecting part surface within the 55–250 mm operating range and teach the selected switching point with the local button. The complementary NPN signals supply opposite states to external inspection control for that condition. Actual part size and alignment are checked,and the30 ms response and temperature-compensation settling are considered before setting the process tolerance.

Problem Solved

A taught surface-distance condition lets external inspection control distinguish the expected part position from a displaced surface,adding a repeatable positional check to the fixture sequence.

Fixture reference Teach button Complementary states

2. Accepting a load within a distance window

A handling station can teach a window around an expected load-face position within 55–250 mm. External sequence control evaluates the configured output state to determine whether the target satisfies that window condition. Target reflection,size and angle are validated against the detection characteristics,and the local teach button can be deactivated after setup to retain the selected configuration.

Problem Solved

A taught distance window gives external control a defined acceptance region for the load face,helping identify a load positioned too near or too far before a handling action.

Load window Configuration retention Ultrasonic sensing

3. Detecting material in front of a taught background

A small material-handling station can teach a stable reflecting background and present the actual material between it and the sensor. Background mode evaluates the configured echo condition,and the complementary outputs report opposite states to external control. Background distance,target geometry and the selected operating range are checked on the actual material before the machine uses the result.

Problem Solved

A background-based condition helps external sequence control distinguish material occupying the taught space from the background alone,providing a useful process check where simple optical intensity contrast is limited.

Background reference Material presence Complementary outputs