Serial Handwheels; Hr 130 Handwheel - HEIDENHAIN iTNC 530 Service Manual

19 Serial Handwheels

19.1 HR 130 Handwheel

HR130
Checking data The HR 332 serial handwheel with auxiliary keys can be checked using an oscilloscope.
transmission The following signals can be measured at handwheel input X23 of the MC. The signals
must correspond to the following diagram:
July 2002
Pin 6 DTR
0 V
Pin 8 RxD
0 V
t = 6 ms
Note
Power is supplied to the handwheel via the MC.
(X23, pin 2 = 0 V, pin 4 = + 12 V)
19 – 263