Siemens 3TK28 - Structure 3 TK2824-.A.20; Terminal Assignment

Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
3TK28 safety relays
Manual, 07/2016, NEB926157502000/RS-AB/003
65
3.6.5.3
Structure 3TK2824-.A.20
Front view
No.
Meaning
①
Display LEDs
②
Removable terminal blocks
③
Labels
3.6.5.4
Terminal assignment
Terminal
Description
A1
L/+
A2
N/-
Y11; Y12
Channel 1, EMERGENCY STOP or limit switch
Y21; Y22
Channel 2, EMERGENCY STOP or limit switch
Y33; Y34
On button, feedback circuit
13 - 14
Enabling circuit 1, (NO)
23 - 24
Enabling circuit 2, (NO)