17
B1 B2 A1 A2
Z1
Z2
T1
T2
X1
X2
Y1
Y2
13
14
31
32
Power
CH 1
CH 2
Testing
Aux Relay
SK 34
6. Device overview
6.1 Signal indicators
LED
Power
green
Supply voltage
LED
CH1
yellow/red
Sensor 1 activated
yellow
Sensor circuit 1 interrupted
red
LED
CH2
yellow/red
Sensor 2 activated
yellow
Sensor circuit 2 interrupted
red
LED
Testing
orange
Test active
LED
Aux. Relay
orange
Auxiliary relay closed
6.2 Connection terminals
A1 A2
Supply voltage 230 V (115 V) 50/60 Hz
B1 B2
Supply voltage 24 V AC/DC
X1 X2
Connection sensor circuit 1
Y1 Y2
Connection sensor circuit 2
13 14
Safety-relay switching contact
31 32
Auxiliary-relay switching contact
Z1 Z2
Input for manual reset
T1 T2
Input for test signal
6.3 Versions
Version SK 34-32
Housing, 22.5 mm wide, made of polyamide for 35 mm DIN rail mounting acc. to EN 60715.
Supply voltages 230 V 50/60 Hz and 24 V AC/DC.
Version SK 34-82
Same as version SK 34-32, but with 115 V 50/60 Hz and 24 V AC/DC supply voltage.
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