Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
3TK28 safety relays
24 Manual, 07/2016, NEB926157502000/RS-AB/003
Display of the operating state
The operating state and functioning of the device are indicated by three LEDs:
● DEVICE
– lights up green during operation
– lights up red on internal device faults
● OUT
– lights up yellow on EMF > U
an
– flashes green when t
s
elapses
– green steady light on enabling the output contacts
● SF
– flashes on faults in the measurement and feedback circuit and on insufficient auxiliary
voltage U
H
(see flashing code)
LED flashing codes of the red LEDs "SF" in order of priority
To Next Page
Loading...
