CET-AX Leseköpfe

Read heads CET-AX

Read head with guard locking and guard lock monitoring
Up to category 4
High locking forces up to 6500 N
Integrated transponder coding
Metal housing

Design and functionality

With the read head CET-AX, EUCHNER provides monitored guard locking based on non-contact transponder technology. This means that the switch can also be used on systems with overtravelling machine movements for the personal protection.

When closing the safety guard (hinged or sliding door), the spring-loaded transponder in the actuator is inserted into the recess on the read head.

The read head detects the closed safety guard in its guard locked position. The CES evaluation electronics enables the safety circuit when the safety guard is locked.

When the moving parts of the machine come to a standstill, the solenoid integrated into the read head can be activated by a safe standstill monitor or by a timer relay. The solenoid's plunger then raises the spring-loaded transponder, which allows the safety guard to be opened.

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Use of the read head even in extremely harsh environments

Due to the extremely robust metal housing, the switch is suitable for the harshest ambient conditions and when guard locked achieves a locking force of 6500 N - a characteristic that is advantageous particularly for heavy doors.

With the safety guard closed, the CET-AX provides around ± 5 mm of freedom of movement in all 3 directions (x, y, z direction) – even if the safety door drops over time it will not be necessary to re-adjust the actuator.

The insertion slide can be rotated in 90° steps. As a result the switch is suitable for doors hinged on the right and left.

Different versions

Along with the standard version with a single insertion slide, there is also the CET-AX with a double insertion slide that is perfectly suited to swing doors and rotary tables. That is, wherever the approach is from two sides and where the read head must also be "passed over".

As an option, EUCHNER also offers versions with escape release. This feature enables people locked in to open the locked safety guard from the inside in an emergency.

The range is supplemented by versions with different plug variants and freely configurable LED control.

Your advantages

Robust die-cast zinc housing for harsh environments
Suitable for heavy doors
High protection against tampering
Actuator with large freedom of movement
No precise door adjustment necessary
Low wiring effort
High degree of protection IP67
Suitable for the highest safety requirements

Read head CET1-AX-..., M12, with guard locking and guard lock monitoring

Read head with guard locking
Locking force up to 6,500 N
Up to category 4/PL e according to EN ISO 13849-1
With plug connector M12
2 LEDs (1 freely configurable)

Mechanical release

Is used for releasing the guard locking with the aid of a tool. The mechanical release must be sealed to prevent tampering (for example with sealing lacquer)

Approach direction

Horizontal

Can be adjusted in 90° steps

Solenoid operating voltage

DC 24 V +10% -15%

Guard locking types

CET1	Closed-circuit current principle, release by applying voltage to the guard locking solenoid.

LED function display

Red LED	Illuminates when solenoid switched on
Green LED	freely configurable

Category according to EN ISO 13849-1

Important: The category in accordance with EN ISO 13849-1 is dependent on the evaluation unit used and on the installation position.

Notes

Special connection cables from EUCHNER are required for the connection. Please take into account in the order!
The read head CET is only allowed to be operated in conjunction with the actuator CET-A-BWK-50X. The actuator must be ordered separately.

Plug connector (view of connection side)	PIN	Function	Wire color connection cable
With plug connector M12	1	H1, read head data wire	WH
	2	H2, read head data wire	BN
	3	SH, data wire screen	(Screen)
	4	LED 2 freely configurable, 24 V	YE
	5	0V	GY
	6	M+, UB/24 V solenoid	PK
	7	M-, 0 V/GND solenoid	BU
	8	Housing	RD

Order numbers:

095 735 CET1-AX-LRA-00-50X-SA
104 051 CET1-AX-LRA-00-50X-SF

Read head CET...

with plug connector M12

Dimension drawing

Terminal assignment

With plug connector M12

Read head CET1-AX-... M12, with guard locking and guard lock monitoring, 2 freely configurable LEDs

Read head with guard locking
Locking force up to 6,500 N
Up to category 4/PL e according to EN ISO 13849-1
With plug connector M12
2 freely configurable LEDs