wtw LF 170 - Page 57

LF 170 Technical data
123
ba54104e09 11/2010
Electrical connections
Fig. 8-2 Terminal strip
Connection technique
Relay
(RT and RT RS option)
-+-
ih
g
f
e
d
cba
Rec2
L1N
K2 K1
RS
Option
Sensor/Probe
Rec1
Netz
Mains
c
Option
ba
+
X2
X1
13 12 11 1110 109
9
8
8
7
7
6
6
5
5
4
4
332211
Connections – 7-pin sensor input jack on the underside
of the housing
– Screwless plug-in connections in the
housing using cable glands
Connection cross
section
0.5 ... 2.5 mm
2
Cable feeds 4 cable glands PG 13,5 / terminal range 10 ...
14 mm
Relay contacts Galvanically separated
Max. switching voltage 250 V AC or 30 V DC
Max. switching current 5 A (AC and DC)
Max. switching power 150 W (resistive load)
Relay K1 and K2 Programmable as:
– Signaling relay for failure of supply voltage
– Signaling relay for "frozen" outputs
– Limit monitor
–Timer
Switching behavior adjustable