HEIDENHAIN iTNC 530 HSCI - X79: Unit Bus

252 HEIDENHAIN Technical Manual iTNC 530 HSCI
X79: Unit bus Connection:
40-pin ribbon
connector
Assignment
1a to 3b 0 V *1
These voltages must
not be linked with other voltages
(only basic insulation)!
4a +24 V *1
4b +24 V *1
5a +15 V *1
5b +24 V *1
6a +15 V *1
6b +15 V *1
7a to 8b Do not assign
9a Reserved (SDA)
9b Do not assign
10a Reserved (SCL)
10b ERR.TEMP
11a PF.PS
11b 0 V
12a RES.PS
12b 0 V
13a PWR.OFF
13b 0 V
14a 5 V FS (spindle
enable)
14b 0 V
15a 5 V FA (axis
enable)
15b to 16b 0 V
17a and 17b –15 V
18a and 18b +15 V
19a to 20b +5 V
Danger
The interface complies with the requirements of EN 61800-5-1 for low
voltage electrical separation (except for 1a to 6b).