Owner manual
LOGIC 
5-187 
Chapter 5 
Intended inputs 
(Terminal names) 
Function 
Function name  Dual channel direct opening input 
Symbol 
Dual Channel
Direct Opening
Description of operation  This function diagnoses the status of 
connected safety devices. This function 
diagnoses the time interval of status 
transition between each input of 
duplicated inputs (0.5s). 
Safety input 6 
(X12-T12, X13-T13) 
Detail information  Logic functions (5-311) 
Warning
For connected control devices, refer to “SAFETY PRECAUTIONS”. 
Safety check signals (pulses signals) are sent from the drive terminals (T0, T2, T4 to T7, T12, T13) to 
diagnose connected safety devices and input circuits. Safety check signals can not be used as a 
power supply for connected devices. 
Note. Solid state outputs, such as safety light curtains, can not be connected to safety input 1 through 
Safety input 4, and safety input 6. 
Note. Use safety input 1 through safety input 4, and safety input 6, as specified combinations, such as 
receive terminal (Xn) and drive terminal (Tn). If the combinations are incorrect, SafetyOne does 
not work correctly. 
Note. When SafetyOne is in Run state or Protection state, input states are monitored in all safety 
inputs. For example, if input monitor error is detected in safety input 3 or safety input 4 although 
AUTO mode is selected, SafetyOne detects error and transits to Protection state. 
Note. If there are unused safety inputs in safety input 3, safety input 4 or safety input 6, connect the 
unused receive terminals (Xn) to the corresponding drive terminals (Tn). If they are not 
connected, the SafetyOne does not turn ON the safety outputs. 
Note. If safety input 5 is not used, connect the receive terminals (X10 and X11) to a 24V DC power 
supply (V+). If they are not connected, the SafetyOne does not turn ON the safety outputs. 










