Yaskawa 120 Series I/O Modules - Manual (Page 159)

4 Analog I/O Specifications
4.1.2 Analog Input Modules (0 to 10 V, 4 channels)
4-12
(4) Unused Input Circuits
For a unused input circuit, short its “+” terminal to “-” terminal and also short one
of these terminals to its “Shield” terminal. An incorrect connection will make
input signal unstable and cause malfunction.
(5) Crimp Terminals
Use M3 terminals for crimping to the terminal block.
(6) Unconnected Terminals
Terminals 1, 5, 9, 13, 17, 18, and 20 are not connected.
5) I/O Allocation
I/O allocation is necessary when using the Analog Input Module ( ±10 V, 4 CH). For
further details on I/O allocation, refer to 4.3 I/O Allocation.