Lenze SM302 - Page 38

Safety engineering
Device modules
Safe speed measurement and position detection
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EDS94AYAF EN 1.0
Motor−encoder combinations
Drive systems with Servo Drives 9400 and safety module SM302 provide speed−dependent
safety functions for safe speed monitoring and/or safe position monitoring. Observe
permissible motor−encoder combinations during configuration.
ƒ Permissible motor−encoder combinations for these functions:
Synchronous
servo motors
Encoder
Safe speed monitoring with SM30x
Type Product key
MCS 06 ... 19
MDXKS 56 / 71
Sin/cos absolute value, single−turn AS1024−8V−K2
Single−encoder
concept
PL d / SIL 2
Sin/cos absolute value, multi−turn AM1024−8V−K2
Resolver RV03 PL e / SIL 3
Two−encoder concept Up to PL e / SIL 3
Asynchronous
servo motors
Encoder
Safe speed monitoring with SM30x
Type Product key
MCA 10 ... 26
MQA 20 ... 26
Sin/cos incremental IG1024−5V−V3
Single−encoder
concept
PL e / SIL 3
Resolver RV03
Two−encoder concept Up to PL e / SIL 3
Three−phase
asynchronous
motors
Encoder
Safe speed monitoring with SM30x
Type Product key
MDxMA063−xx ...
MDxMA225−xx
Sin/cos incremental
IG2048−5V−V3
Single−encoder
concept
PL e / SIL 3
MHxMA080−xx ...
MHxMA225−xx
IG2048−5V−V2 PL d / SIL 2
MFxMA063−xx ...
MFxMA132−xx
Two−encoder
concept
Up to PL e / SIL 3
A "two−encoder concept" includes e.g. a resolver as motor encoder and, at the same time,
an absolute value encoder (sin/cos), an incremental encoder (TTL), or digital encoder
(SSI/bus) as position encoder on the machine.
In the case of the "2−encoder concept", the achievable risk mitigation (PL/SIL) depends on
the suitability of the encoders used.
 Note!
If feedback systems for safety functions are used, the manufacturer’s
documentation must be observed!