Installation Manual
7-24 Theory of Operations
Table 7-6 Performing a Height Sense (continued)
Component Function
PMAC Card
1. Receives height sense touch input.
2. Relays touch input information to FmNT.
3. Issues Z Motor stop command.
Main Interface PWA
Relays Z Servo Motor stop command to XY Servo
Interface PWA.
XY Servo Interface PWA
Relays Z Servo Motor stop command Z Servo Interface
PWA.
Z Servo Interface PWA
Relays Z Servo Motor stop command to Z Servo
Amplifier.
Z Servo Amplifier
1. Receives low-voltage motor stop signal from
the PMAC.
2. Cuts power to Z Servo Motor causing motor
to stop.
Z Servo Motor
Stops lowering the Z Carriage.