HEIDENHAIN TNC 410 M Technical Manual page 394

6.7 Connecting the UM 1xx(B)(D) Power Modules
6.7.1 PWM Connection to the Control
X111, X112: PWM
connection to the
control
6 – 68
Danger
Danger of electrical shock!
The UM 1xx power modules may be opened only by HEIDENHAIN service
personnel.
Do not engage or disengage any terminals while they are under power.
Connection:
Ribbon connector, 20-pin
1a
1b
2a
2b
3a
3b
4a
4b
5a
5b
6a
6b
7a
7b
8a
8b
9a
9b
10a
10b
Danger
The interface complies with the requirements of IEC 61800-5-1 for "low
voltage electrical separation."
HEIDENHAIN Technical Manual for Inverter Systems and Motors
Assignment
PWM U1
0 V U1
PWM U2
0 V U2
PWM U3
0 V U3
SH2
0 V (SH2)
SH1
0 V (SH1)
+Iactl 1
–Iactl 1
0 V (analog)
+Iactl 2
–Iactl 2
0 V (analog)
Do not assign
BRK
ERR
RDY