SEW-Eurodrive MOVISAFE DCS B Series

18
Manual – MOVIDRIVE® MDX61B Safety Module MOVISAFE® DCS..B Option
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
monitored 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.
1970875019
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
V
t
t
1
t
2
P
i
f
kVA
Hz
n