Lenze ETC Motion Control - Manual (Page 265)

Interface PLC <˘> NC operating system
Definitions
Data block 1
5
5.1
5.1.2
l
265 EDSTCXN EN 2.0
Data word Name Direction Type of signal
160 H function NC
→
PLC Message
The data word contains the number of the H function in binary representa-
tion. For the description on the acceptance of an H function, refer to the "Pro-
gramming instructions".
Effect in the PLC: Execution of the function specified via the H function. Read
enable is activated after the function has been completed or at another sui-
table point in time.
Data word Name Direction Type of signal
177.00−15 Home position approached NC
→
PLC static
The signal has the value "1" if a home position approach has been carried out
successfully and the value "0" after the control has been switched on and if
the home position is unknown.
Effect in the PLC: Checking the home position approach and disabling ma-
chine functions or traversing movements (feed enable) if the home position
is not approached.
Data word Name Direction Type of signal
178.00−15 Limit switch + active NC → PLC static
The signal has the value "1" if the positive limit switch of an axis is active,
otherwise value "0".
Effect in the PLC: Disabling machine functions or traversing movements
(feed enable).
Data word Name Direction Type of signal
179.00−15 Limit switch − active NC
→
PLC static
The signal has the value "1" if the negative limit switch of an axis is active,
otherwise value "0".
Effect in the PLC: Disabling machine functions or traversing movements
(feed enable).
Data word Name Direction Type of signal
180.00−15 Reference switch active NC
→
PLC static
The signal has the value "1" if the reference switch of an axis is active, other-
wise value "0".
Effect in the PLC: If required, man. execution of homing via the PLC.