GB - 25
Safety Function STO
3.6.3 Direct switching off by safety module with test pulses
U V W PE
M
X1A
Terminal strip X2B
Power circuit
Control circuit
open
closed
S1
S2
Safety device
Receipt
Safety module
1 - STO1+
2 - STO1+
3 - STO1-
4 - STO1-
5 - STO2+
6 - STO2+
7 - STO2-
8 - STO2-
9 - STO-OUT
10 - STO-OUT
X2A
X2C
X2D
X4A
Diagnosis
X4B
Field bus
X4C
Field bus
With operation of the emergency stop unit, e.g. by protection door, the release paths of the
safety module are disconnected. This leads to the loss of the STO signals (X2B.1 and 5) and
thus to energy disconnection of the drive. The safety module makes a consistency check of
all signal paths via test signals (OSSD).
Summary of Contents for COMBIVERT S6 Series
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