HEIDENHAIN TNC 407 (243 020) Service Manual - Manual (Page 60)

HEIDENHAIN
JOHANNES
D-i3292
SERVICE MANUAL
TNC
Issue:
01.09.19958
Page 51
12. Handwheel HR
12.1 Overview
HR 130 254 040 HR 330 Cable Adaptor for HR 330
HR 130.001 249 371 251 534 249 889
12.2 Checking the Handwheel HR
The serial handwheels HR 130 and HR 330
can only be tested with an oscilloscope.
The controls /pin 6 = DTR.
pin 6
ov
pin 8 to the diagram
at the left.
The supply voltage for the handwheel is fed via
the logic unit
2 = OV, pin 4 = +
= 4 (TNC 415)
= 12 (TNC 407)