HEIDENHAIN iTNC 530 HSCI - Page 505

28 – 506 HEIDENHAIN Service Manual iTNC 530 HSCI
X10:
Interface to
keyboard and
potentiometers
Designation of the terminals:
See “X60: Potentiometer values for MB 620” on page 28 – 499.
X23:
Handwheel input
D-sub connector (female) 9-pin Assignment
1CTS
20 V
3RTS
4 + 12 V
5 Do not assign
6DTR
7TxD
8RxD
9DSR
Housing External shield
Note
The interface complies with the requirements of EN 61800-5-1 for "protective extra-low voltage"
(PELV).
DANGER
The connector for the handwheel on the machine operating panel, as well as the connector on
the handwheel itself, may be removed only by trained and qualified personnel, even if it can be
removed without using a tool.
If the handwheel connector is removed, only basic insulation from line power (230 V) is provided!