HEIDENHAIN TNC 407 (243 020) Service Manual - Manual (Page 102)

SERVICE MANUAL TNC
Issue:
01.09.1995
Page 84
17.4.1 Wiring of the EMERGENCY STOP Interface (Basic Circuit Diagram)
-24V
X44/2
24V
outputs
INPUT:
x44/3 Acknowledgement
“Control Ready
for Operation”
Int.
STOP
Machine Tool OUTPUT:
Limit Switch “Control Ready
LE 4071415
for Operation”
17.4.2 EMERGENCY STOP Flow Diagram: TNC 407
1
I
3
I
Time
1
4
Remarks Error Message
POWER INTERRUPTED
Waiting for control voltage
After switching off the output “Control Ready
for Operation”, the “Acknowledgement Control
Ready for Operation” must be switched off
within 146 ms; otherwise a blinking error
message is generated.
If the acknowledgement is switched off during
operation, the error message is displayed.
EMERGENCY STOP