Siemens Sinamics S120 Function Manual page 152

Description of Safety Integrated functions
4.2 Safety Integrated Extended Functions
Not e
B as ic absolute encoders with E nDat interface and additional sin/cos tracks
Basic absolute encoders (e.g. EQI) that offer an EnDat interface with additional sin/cos
tracks, but operate according to an inductive measuring principle internally, are not permitted
for SINAMICS Safety Integrated.
Not e
E nc oder types f or SINAMICS HLA
The following encoder types are permissible for SINAMICS HLA:
• Single-encoder systems
– Safety-capable DRIVE-CLiQ encoder
– sin/cos encoder connected via SME20/25, SME120/125 or SMC20 (1Vpp, pure
• 2-encoder systems
– Encoders with DRIVE-CLiQ connection
– sin/cos encoder connected via SME20/25, SME120/125 or SMC20 (1Vpp, pure
– HTL/TTL encoder connected via SMC30 (not in conjunction with SINUMERIK)
– TTL encoder connected via the onboard interface of the HLA module (not in
Ac tual value synchronization
1)
Image 4-18
The mean value of the actual values of both channels is calculated cyclically after actual
value synchronization (p9501.3 = 1) has been activated, for example, for systems or
machines with slip. The maximum slip defined in p9549 is monitored in the cross-check cycle
152
analog signal processing)
analog signal processing)
conjunction with SINUMERIK)
This deviation cannot be larger than the position difference that can arise at maximum slip
(p9549) during a cross-check cycle (r9724).
Example diagram of actual value synchronization
Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
Safety Integrated