Safety engineering
Device modules
Function mode of the safety modules
1
1.2
1.2.2
1.2-2
EDS94AYAD EN 2.2
1.2.2 Function mode of the safety modules
The code C00214 must comply with the plug-in safety module type so that
thecontrollerisabletooperate.
The transmission of the pulse width modulation is safely (dis-)connected by
thesafety module.Hencethe driversdonot createa rotatingfield.The motor
is safely switched to torqueless operation (STO).
SSP94SM320
Fig. 1.2-1 Disconnecting paths of the safety modules
SMx Safety module SM100/SM300
xx Input / output terminal
C Control section
μC Microcontroller
PWM Pulse width modulation
PPowersection
M Motor
When the controller is switched off by a safety module, the ”Safe torque off”
status is set (C00183 = 101).
If internal errors of the safety modules are detected, the motor is safely
switched to torque-free operation (fail-safe status).
C00214
Disconnecting paths
Safety status
Fail-safe status
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