Dedicated I/O Signal Timing Chart; Controller Power On, Servo On And Emergency Stop - Yamaha RCX40 User Manual

c
CAUTION
It will take about 3 seconds for the
controller to issue the CPU_OK
output after the power is turned on.
1.8

Dedicated I/O signal timing chart

1.8.1

Controller power ON, servo ON and emergency stop

on
CPU_OK output: DO(01)a
off
on
Servo-ON output: DO(02)a
off
on
Alarm output: DO(03)a
off
on
Emergency stop input
off
on
Servo-ON input: DI(01)
off
Initial servo-on processing when power is turned on.
a) CPU_OK output turns on.
b) Servo-ON input turns on.
c) When not in emergency stop, servo-ON output turns on after servo-ON processing.
d) Servo-ON input turns off after checking for servo-ON output.
Shifting to emergency stop
e) Emergency stop input turns off.
f) Alarm output turns on and servo-ON output turns off.
Shifting from emergency stop to servo-ON
g) Emergency stop input turns on.
h) Servo-ON input turns on.
i) Alarm output turns off.
j) Servo-ON output turns on.
k) Servo-ON input turns off after checking for servo-ON output.
* When the emergency stop input contacts are open or a major error (malfunction) occurs
while the controller power is turned on, the servo turns off.
* When processing with dedicated inputs, use I/O signals to perform handshake
processing. If handshake processing is impossible, hold signal for a minimum of 100ms.
1. I/O interface overview
a) b) c)d) e) f) g) h) i ) j) k)
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