Emerson unidrive m, Installation And Operating Manual

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SI-Safety Installation & Operating Manual
Issue Number: 1
Figure 3-10 Two channel complementary sensor
3.2 Sensors for speed and/or position recording
3.2.1 General technical safety surface mounted sensor interface for position
and/or speed.
The SI-Safety module has two encoder interfaces.
Depending on the type and combination of encoders, different safety levels can be
achieved. The following system configuration emerges for a corresponding sub system:
Figure 3-11 shows a dual channel sensor system with separate signal processing in two
channels, diagnosis through cross checking in the PES.
Figure 3-11 Sensors for speed and/or position recording
Figure 3-12 illustrates a sensor system with one and two channel subsystem (example:
incremental encoder). Diagnosis using separate signal processing in two channels and
cross checking in the PES as well as other specific forms of diagnosis
Figure 3-12 Single and two channel subsystem
I/O interface
SMF11
SMF12
E0.5
P1
P2
L+
L-
P1
P2
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Sensor PES Aktuator
Sensor
A
Sensor
B Actuator
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Sensor PES Aktuator
Eink. Teilsyst .
M ech .+
Sendeopt .
Spur A
Spur B
Zweik. Teilsyst .
Actuator
One channel
system Two channel
system