Lenze ETC Motion Control - Manual (Page 251)

Interface PLC <˘> NC operating system
Definitions
Data block 1
5
5.1
5.1.2
l
251 EDSTCXN EN 2.0
Data word Name Direction Type of signal
012.00 Program stop PLC
→
NC static
The "Stop" signal is set to value "1" if the stop signal from HMI to the PLC
(DW142) has value "1" or if a corresponding input of the PLC is set ("Press the
stop key") or if the conditions for further processing of a program are not met
due to other reasons.
The value is set to "0" if the "NC program is running" or "NC program is run-
ning 1" signal adopts the value "0" in "Interrupt" state.
Effect in the NC: The value "1" has an effect in the NC that depends on the
set operating mode.
Manual operation: The current movement is interrupted; any other pending
tasks are canceled. The "NC program is running" signal is set to "0".
Automatic: Termination of the currently running NC program. The NC
adopts the initial state. The "NC program is running" signal is set to "0".
Data word Name Direction Type of signal
012.08 Interrupt PLC
→
NC static
With the pos. edge of the interrupt signal, a currently running program or a
program which has been stopped by a 3 class error can be interrupted (Note:
A program is stopped in the case of a class 3 error if the machine constant
MK_FEHLERRESTART is set to "1". Otherwise, the program is canceled.). In
this state, the axes can be moved manually and individual functions or other
programs can be executed.
Once programs and individual functions are inactive, the interrupt state can
be exited by means of a pos. edge of the interrupt signal. The interrupted pro-
gram can then be resumed by triggering a normal start or canceled by pres-
sing the stop key. When the program is resumed, a balancing run of the axes
will take place at first taking the shortest route to the point of interruption
with 1/10 of the max. traversing speed.
The interrupt signal is ORed with the interrupt signal in the virtual keyboard.
Effect in the NC: NC switches to interrupt state with the 1st pos. edge. With
the next pos. edge the state is exited again if no other actions are active.
)
Note!
In the interrupt state it is not possible to make coordinate shifts
or zero point corrections.