HEIDENHAIN TNC 306 Technical Manual - Manual (Page 49)

3–34
TNC 416/TNC 406/TNC 306 Nominal value output / Gap signal input 3/99
6.1 Connector assignment
X8 nominal value output/Gap signal input
D-sub connector (15-pin female insert)
X8 Nominal Value Output
Logic unit Connecting Cable
D-sub terminal
(female) 15-pin Assignment D-sub
connector
(male) 15-pin Color
1 Nominal value output 1 1 BN
2 Analog input, gap signal 2 BN/GN
3 Nominal value output 2 3 YL
4 Nominal value output 5 4 RD/BL
5 Nominal value output 3 5 PK
6 0V Nominal value output 5 6 GY/PK
7 Nominal value output 4 7 RD
8 Nominal value output 6 8 VI
9 0V Nominal value output 1 9 WH
10 0V Analog input 10 WH/GY
11 0V Nominal value output 2 11 GN
12 Not used 12
13 0V Nominal value output 3 13 GY
14 0V Nominal value output 4 14 BL
15 0V Nominal value output 6 15 BK
Housing External shield Housing External shield
No more than one intermediate terminal clamp is allowed on the connecting cable to the nominal
value outputs. The clamp must be made in a grounded connection box. This is necessary when the
cable must branch to physically separate servo inputs. It is only possible to ground the shielding of
the servo leads in this way. If required, suitable connection boxes are available from HEIDENHAIN
with the Id.-Nr. 251 249 01.
Connection box
The casing of the connection box must be electrically connected with the frame of the machine.
The 0 V of the nominal value differential input must be joined to signal ground, (cable cross-section
Ø 6 mm², see also under "Grounding plan").