Siemens 3TK28 - Structure 3 TK2827;28; Terminal Assignment

Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
3TK28 safety relays
84 Manual, 07/2016, NEB926157502000/RS-AB/003
3.6.7.3
Structure 3TK2827/28
Front view
No.
Meaning
①
Display LEDs
②
Removable terminal blocks
③
Time setting
④
Labels
3.6.7.4
Terminal assignment
Terminal
Description
A1
L/+
A2
N/-
Y10; Y11
Channel 1, (1-channel)
Y11; Y12
Channel 1, (2-channel)
Y21; Y22
Channel 2, (2-channel)
Y33; Y34
On button, feedback circuit
13 - 14
Enabling circuits, (NO)
23 - 24
31 - 32
Enabling circuit, (NC)
47 - 48
Enabling circuits (NO), time-delayed
57 - 58