Download  Print this page

Siemens 3TK2845 Manual page 17

Safety relays, multifunction device
Hide thumbs

Advertisement

Legend
Sensor interface
S
x
CAS/OS
Key-
operated
switch
Safety logic
AS
MS
AS/MS
td
td
Parameters
AS/MS
CC
3TK2845 Multifunction Device Manual
GWA 4NEB 926 2087-22 DS 01
Sensor input
Cascading input or operational switching (operational switching:
connection of, for example, a PLC output. Three enabling circuits
and the connected consumers can then be switched via the
machine controls. The safety function is higher-level).
3TK2845-.HB.. : Bridging of the sensor connected to S2 (standard
operation/maintenance)
3TK2845-.DB.. : Bridging of the sensor connected to S2 (standard
operation/maintenance)
3TK2845-.EB.. : Bridging of the protective door function and
activation of the enabling button
3TK2845-.FB.. : Enabling of the protective door
3TK2845-.GB.. : Enabling of the protective door
Automatic start-up: Device starts automatically after the enabling
conditions have been fulfilled. A manual start-up is possible when
a START button is integrated in the feedback circuit (up to
Category 3 according to EN 954-1).
Monitored start-up: The device only starts after the enabling
conditions have been fulfilled and a start signal has been issued.
Automatic or monitored start-up, depending on the
parameterization
Switch-off delay
Switch-on delay
Automatic or monitored start-up, depending on the device type/
parameterization
with/without cross-circuit monitoring
Functional Information
2-5

Advertisement

Table of Contents
loading