Drive Safety Functions; Sto - Safe Torque Off - SEW-Eurodrive MOVISAFE CSB51A Manual

Safety concept
3

Drive safety functions

3.7 Drive safety functions
3.7.1 STO – Safe Torque Off
14
Manual – MOVISAFE
Drive safety functions according to EN 61800-5-2 that are supported by the
®
MOVISAFE CSB51A safety option are described in this chapter.
If the STO function is activated, the drive inverter no longer supplies power to the mo-
tor. As a result, the drive cannot generate torque. This drive safety function corres-
ponds to a non-controlled stop according to EN 60204-1, stop category 0.
V
= Drive safety function active
v = Speed
= Time
t
t = Point of time when STO is triggered.
1
INFORMATION
The motor coasts to a halt or is stopped mechanically.
Controlled standstill is preferred, if possible.
®
CSB51A Safety Option
t 1
t
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