HomeProductsElectromechanical safety switches with guard lockingTZ proven metal switchTZ1LE024SEM4AS1-C1937

TZ1LE024SEM4AS1-C1937 (Order no. 090278)

Safety switch TZ ASi, plug connector M12, emergency release

  • AS-Interface
  • Plug connector M12, 4-pin
  • Emergency release with rotary knob
  • LED indicator
  • Actuating head fitted left
  • Closed-circuit current principle
TZ1LE024SEM4AS1-C1937 (Order no. 090278)

Description

Approach direction

Horizontal

Can be adjusted in 90° steps

Guard locking principle

Power to unlock: On a guard with guard locking based on the closed-circuit current principle, the guard is locked by spring force until the guard locking solenoid is supplied with power. Unlocking is by solenoid force. The term mechanical guard locking is also used.

Control of the guard locking solenoid

The guard locking solenoid is controlled via AS-Interface bit D0. In order to achieve safe control of the guard locking, the auxiliary voltage must also be switched safely.

Auxiliary voltage

The ASi auxiliary voltage is required to supply the guard locking solenoid.

AS-Interface inputs

D0, D1

Monitoring of the guard position

D2, D3

Guard lock monitoring

AS-Interface outputs

D0

Control of guard locking

D1

LED red

D2

LED green

LED indicator

The Power LED indicates the operating voltage on the bus.

The Fault LED indicates if a fault has been detected on the AS-Interface bus.

The green and the red LEDs can be controlled as required by the control system via the bus using bits D1 and D2.

Emergency release

The emergency release on the front is used for manual release of the guard locking without tools in an emergency. The emergency unlocking mechanism must be returned to the locked state manually. Sealing can be fitted to protect against tampering.

Accessories required

Actuator is not included.

Dimension drawing
Dimension drawing
Connector assignment
Connector assignment
Electromechanical safety switches in use

Dimensional drawings

Dimensional drawings
1Emergency unlocking (rotary knob)
2Plug connector not aligned

Connection examples

Connection examples
View of plug side

Technical data

Approvals

EAC_RU C-DE.MO05.B.00971/20DNV-GL_TAA0000172 Rev. 1DGUV_TZ_ET 24013_ET 24014CCC2024010305643586_SafetySwitch T_STc_UL_us_E155795_2/5

Electrical connection values

ASI operating current max. 45 mA
AS-Interface auxiliary voltage 24 V -15 ... 10 %
Auxiliary current AS-Interface 350 mA
AS-Interface LED
red Fault
green Power
AS-Interface protocol ASi-3
ASI data out D0 = control of guard locking, D1 = red LED, D2 = green LED
ASI data in D0, D1 = door position, D2, D3 = guard locking
AS-Interface slave type ID-Code: B, EA-Code: 7
ASI voltage 22.5 ... 30 ... 31.6 V
Solenoid duty cycle 100 %

Mechanical values and environment

Approach speed max. 20 m/min
Approach direction
Actuating head left C
Connection type
1 x Plug connector M12 (4-pin)
Number of door position positively driven contacts
according to AS-i Safety at Work
Number of guard lock monitoring positively driven contacts
according to AS-i Safety at Work 1 D2,D3 (1 = locked)
Extraction force 30 N
Actuation frequency max. 1200 1/h
Actuating force 35 N
Installation orientation any
Insertion depth 52 mm
Mechanical life 1 x 10⁶
Retention force 10 N
Switching principle Slow-action switching contact
Degree of protection IP67
Ambient temperature -25 ... 55 °C
Material
Contact Silver alloy, gold flashed
Housing Anodized die-cast alloy
Guard locking principle Closed-circuit current principle

Characteristic values according to EN ISO 13849-1 and EN IEC 62061

B10DMission time
Monitoring of guard locking3x10620 y
Important! Values valid at DC-13 100 mA/24V


PLMaximum SILCategoryMission time
Control of guard lockingDepending on external control of guard locking20 y


Miscellaneous

C number
C1937 with auxiliary release, special wiring

In combination with actuator ACTUATOR-Z-G

Overtravel 4 mm

In combination with actuator ACTUATOR-Z-GN

Overtravel 16 mm

Accessories

Downloads

Complete package

Download all important documents with a single click.

Content:

  • The operating instructions and any additions to the operating instructions or brief instructions
  • Any data sheets to supplement the operating instructions
  • The declaration of conformity
Download Complete Package (ZIP, 5,4 MB)

Single Documents

Other Documents

Ordering data

Ordernumber 090278
Item designation TZ1LE024SEM4AS1-C1937
Gross weight 1,21kg
Customs tariff number 85365019000
ECLASS 27-27-26-03 Safety switch with guard control