IFM Electronic G1501S, Original Operating Instructions

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5 Structure and operating principle
5.1 Indicators and connections
A1 Supply voltage (L-, L+), function terminals (Y1, Y2)
A2 Y4, Y5, Y6, Y7: Operating mode selection, auxiliary output
A3 S33, S34, S43, S44: Connection for safety inputs / outputs
K 1 LED yellow: Triggering of the relay output channel 1
K 2 LED yellow: Triggering of the relay output channel 2
E 1 LED yellow: Input signal channel 1 or TE (for clocked sensor)
E 2 LED yellow: Input signal channel 2 or A (for clocked sensor)
Power LED green: Voltage supply
Fault LED red: Fault/start-up
C1 13, 14: Connection of relay output without delay, 1 x normally open (closed
when enabled)
C2 23, 24: Connection of relay output, 1 x normally open (closed when
enabled)