SEW-Eurodrive MOVISAFE DCS21B

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Manual – MOVIDRIVE® MDX61B Safety Module Option MOVISAFE® DCS..B
3
Safety functions
Integrated Safety Technology
3.2.2 SS1(b) – Safe Stop 1
When the SS1(b) function is active, the inverter brings the motor to a standstill electri-
cally. The deceleration is monitored. The STO safety function is triggered when the mon-
itored deceleration is exceeded or when standstill is reached.
This safety function corresponds to a controlled stop of the drive according to EN 60204-
1, stop category 1.
9007201225616011
Safety function monitors
Safety function trips
v=Velocity
t=Time
t
1
= Point of time when SS1(b) is activated and motor deceleration is triggered
t
2
= Point of time when STO is triggered
t
V
t
1
t
2
P
i
f
kVA
Hz
n