Examples of input circuits

If it is necessary to design your own circuit to use the remote on-off feature, you can refer to these input circuit diagrams as examples.

There are three types of interfaces for input circuits.

It is the responsibility of the system integrator to make sure that circuit designs obey all applicable national and local codes.

Relay interface

This image shows a diagram of the relay interface for input circuits.
A XPR®
B Computer Numerical Control (CNC)
1 The life of the external relay can be extended if you add a resistor-capacitor series in parallel with the relay contacts. A metalized-polyester capacitor – 0.022 μF 100 V or higher – is a good example.
2 Power ground
3 External relay (Alternating Current (AC) or Direct Current (DC))
4 Output from CNC
5 +24 VDC
6 Shielded cable connected to chassis or earth ground

Optocoupler interface

This image shows a diagram of the optocoupler interface for input circuits.
A CNC
B XPR
1 +24 VDC
2 Power ground
3 Transistor-output optocoupler (1 of 2)
4 Transistor-output optocoupler (2 of 2)
5 Shielded cable connected to chassis or earth ground

Amplified-output interface

This images shows a diagram of the amplified-output interface for input circuits.
A CNC
B XPR
1 +24 VDC
2 CNC ground
3 Active-high drive
4 CNC 12 VDC – 24 VDC
5 Shielded cable connected to chassis or earth ground

Redundant remote on-off interface

This image shows a diagrams of the redundant remote ON-OFF interface for input circuits.
A XPR
B CNC
1 +24 V
2 Switch
3 Ground
4 XPR redundant remote on-off input
5 Shielded cable connected to chassis or earth ground