Siemens SINAMICS V90 Operating Instructions Manual page 122

Connecting
4.5 Encoder interface - X9
Wiring
Low inertia motor, shaft-height: 20 mm, 30 mm and 40 mm
Low inertia motor, shaft-height: 50 mm
High inertia motor, shaft-height: 45 mm, 65 mm, and 90 mm
122
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2016, A5E36037884-002