Additional Connection Options - Proxxon FF 500 CNC Commissioning Manual

7.3. Additional connection options

Several additional
actuated upon request, such as a coolant pump, working
light, or similar.
The inside of the control has centre-zero relays whose
connections can be executed through the 25-pin socket
at the rear of the control. Each relay has three pins that
are identified by the letters A, R and G. These letters
stand for:
A: Make contact
R: Break contact
G: Common contact
The circuit design mode of operation is illustrated in the
picture on the right; both Relays 3 and 4 are available.
16 of 55
functions can be electronically
+ 24 Volt
Common
Ground
Make contact
Brake contact