Nachi RMU20-20 Instruction Manual page 44

2.3 Connected signals
General input 21+
General input 21-
General input 22+
General input 22-
General input 31+
General input 31-
General input 32+
General input 32-
General input 41+
General input 41-
General input 42+
General input 42-
General input 51+
General input 51-
General input 52+
General input 52-
The safety input signals are introduced into the RMU by the circuit shown in Fig. 2-5.
2-16
IN10A+ General-purpose safety input signal
IN10A- Used for area select signal, stop monitoring
IN10B+ signal or playback speed monitoring select
IN10B- signal.
IN11A+ General-purpose safety input signal
IN11A- Used for area select signal, stop monitoring
IN12B+ signal or playback speed monitoring select
IN12B- signal.
IN12A+ General-purpose safety input signal
IN12A- Used for area select signal, stop monitoring
IN12B+ signal or playback speed monitoring select
IN12B- signal.
IN13A+ General-purpose safety input signal
IN13A- Used for area select signal, stop monitoring
IN13B+ signal or playback speed monitoring select
IN13B- signal.
Internal circuit
Diagnosis
Fig. 2-5 Example of safety input interface circuit
Overcurrent
detection
circuit
Photo-coupler input
Rating DC26V
Input current 5mA
Over current protection provided
Photo-coupler input
Rating DC26V
Input current 5mA
Over current protection provided
Photo-coupler input
Rating DC26V
Input current 5mA
Over current protection provided
Photo-coupler input
Rating DC26V
Input current 5mA
Over current protection provided