Siemens 3TK2845, Manual

Page: 32 / 68

Functional Information
3TK2845 Multifunction Device Manual
2-20
GWA 4NEB 926 2087-22 DS 01
Connections: Enabling button instantaneous
1) Electronic signaling output
Enabling circuit active: Signaling output OFF
Enabling circuit inactive: Signaling output ON
Key-operated switch
operation: Signaling output clocked
(approx. 1.2 Hz)
Cascading
Sensor connection
1
Y64
Y11
Y12
Y21
Y22
Y34 START button
Sensor connection
Y65
Key-operated switch
Safet
y
logic
Inp
u
t block
Senso
r
Ter
m
inals
Des
cription
Ter
m
inal
13
14
24
33
34
52
44
Y72
Y82
O
u
tp
ut b
lock
Des
cription
Safe
relay output
instantaneous
Safe electronic
output
instantaneous
Safe
relay output
instantaneous
Safe electronic
output
instantaneous
Electronic signaling
output
1)
(should not be used for
safety-related
applications)
or
or
Feedback circuit
Monitored start-up
(not connected)
Automatic start-up
(with 24 V DC = terminal A1
connected)
with cross-circuit detection
(not connected)
Without cross-circuit
detection (with 24 V DC =
terminal A1 connected)
Y41
Y42
Y51
Y52
Y32
Monitored
start-up
S
1
Key-
operated
switch
Automatic
start-up
CAS / OS
Automatic
start-up
Monitored
start-up
S
2
EC
rel
(S)
EC
el
(S)
EC
el
(S)
EC
rel
(S)
SC
el
(S)