I/O interface [X2, X3, X4]
Terminal
Connection
Use
X2.0
8 digital inputs
Operation enable
X2.1
Control element (handle) active
X2.2
Error in the safety relay unit
X2.3
Reference sensor
X2.4
Reset fault
X2.5
Change operating mode
X2.6
Overspeed in safety relay unit
X2.7
Reserved
X3.0
6 digital inputs
System enable
X3.1 ... X3.5
Can be configured by the user
X4.0
8 digital outputs
Operation enabled
X4.1
Can be configured by the user
X4.2
Shut-off valve 1
X4.3
Shut-off valve 2
X4.4
Error
X4.5
Last run mode active
X4.6
Position-holding mode active
X4.7
System active and ready
Tab. 4 I/O interface connection
Installation
14
Festo — YHBP-2 — 2018-11