Emergency Stop - HEIDENHAIN TNC 151 Q Mounting Instructions

Timing diagram
Monoflop
control
Emergency
stop output
Switch-off Switch-off
monoflop monoflop
position loop calculator main calculator
min.23ms
max.76ms
Feedback signal
Emergency stop test
I i
1
2
1,
5 6
Fault display
1. Wait for control voltage
RELAY EXT-DC VOLTAGE
MISSING
2. Within 200 ms, the control voltage must cut-out, otherwise. .
---_
3. Wait for control voltage
1 EMERGENCY STOP DEFECTIVE
1 RELAY EXT-DC VOLTAGE
MISSING
4. Within 200 rns, the control voltage must cut-out, otherwise . .
__--
5. Wait for control voltage
__-___-l__l
EMERGENCY STOP DEFECTIVE
___.-
RELAY EXT-DC VOLTAGE
MISSING
6. If the + 24 L' control voltage is cut-out by a procedureexternally
to the control, the TNC 151/TNC 155 displays the fault (this fault is
not displayed as a flashing signal and can therefore be cancelled with
-I
EMERGENCY STOP
the
0
CE -key).
Caution!
The external emergency stop is evaluated by the control as per an external stop. If the emergency stop is
activated during an axis traverse, the moving axis is decelerated as with an external stop. Should the external
emergency stop block the drive amplifier thus exceeding the programmed values for machine parameter 56
(position supervision, erasable) and machine parameter 57 (position supervision, emergency stop), the fault
"Gross positioning error" is displayed.
22