Lenze MD KS Series - Safety engineering; Motor-encoder combinations

Safety engineering7
36
Lenze • BA 33.0006 • 5.1
7 Safety engineering
Motor-encoder combinations
Drive systems with Servo Drives 9400 and safety module SM301 provide
speed-dependent safety functions for safe speed monitoring and/or safe
relative-positionmonitoring. Observe permissible motor-encodercombinationsduring
configuration.
• Possible speed-dependent safety functions with safety module SM301:
– Safe stop 1 (SS1)
– Safe operational stop (SOS)
– Safely limited speed (SLS)
– Safe maximum speed (SMS)
– Safe direction (SDI)
– Safe speed monitor (SSM)
– Safely limited increment (SLI)
• Permissible motor-encoder combinations for these functions:
Synchronous
servo motors
Encoder
Safe speed monitoring with
SM301
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
SM301
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
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!