Safe Speed Monitor, Ssm - Siemens SINAMICS G120 Function Manual

2.7

Safe Speed Monitor, SSM

The safety function SSM cannot be selected or deselected using external control signals.
SSM is active if all of the following conditions are met:
● You have enabled the safety function SSM with hysteresis.
● For the SSM function, you have set a monitoring velocity of > 0.
● The motor is switched on.
Principle of operation
● When the motor is switched on, the inverter compares the load speed with the velocity
Safety Integrated Function Manual, SINAMICS G120 and G120C
Function Manual, 01/2011, FW 4.4, A5E03052391B AB
limit (p9546 / p9346).
Figure 2-24 Time response and diagnostics of the safety function SSM (Safe Speed Monitor)
Description
2.7 Safe Speed Monitor, SSM
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