3 – 64 HEIDENHAIN Technical Manual TNC 426, TNC 430
3.11 Handwheel Input
The following handwheels can be used with HEIDENHAIN contouring
controls:
n HR 130 Panel-Mounted Handwheel
n HR 150 Panel-Mounted Handwheels via the HRA 110 handwheel adapter
n HR 410 Portable Handwheel
X23: Handwheel
input
Pin layout of the logic unit:
Note
The interface complies with the requirements of EN 50 178 for “low
voltage electrical separation.”
D-sub connection (female) 9-pin Assignment
1CTS
20 V
3RTS
4 +12 V ± 0.6 V (U
V
)
5 Do not assign
6DTR
7TxD
8RxD
9DSR
Housing External shield