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Proper Use
The devices are safety switching devices. They must only be used as components of safety equipment on machines intended to protect persons, material and
plant.
Notes
•
The Performance Level (PL) and safety category in accordance with EN ISO 13849-1 depends on the external wiring, the application case, the choice of
control station and how this is physically arranged on the machine.
•
The user must carry out a risk assessment in accordance with ISO 14121-1.
•
The entire system/machine must undergo validation in accordance with the applicable standards on the basis of this.
•
In order for the specified Performance Level (PL) to be achieved, an average annual number of switching cycles must not be exceeded (see EN ISO
13849-1, C.2.4 and Tab. K.1), taking into account the prevailing device load (see EN ISO 13849-1, Tab. C.1) and the application case. Assuming that the
B
value for the maximum load is 400,000, this results in a maximum cycle number of 400,000 / 0.1 x 30 = 133,333 switching cycles/year.
10d
•
Operating the device not within the specifications may lead to malfunctions or the destruction of the device.
•
The supply input A1 also serves as a control input. This may lead to short disruptions or a lowering below the operating voltage in order to
switch to the release path.
•
The indicated times must be observed when the device is operated, otherwise the device could lock. Locking can be cancelled by opening the
safety inputs properly.
•
SNE expansion devices or external contactors with positively driven contacts can be used to duplicate the enabling current paths.
•
The device and the contacts must be protected at max. 6 A utilization category gG.
•
The devices are equipped with overload protection (for short-circuit). After the malfunction has been dealt with, the device is operational again
in approx. 3 s.
•
Control output S11 is exclusively for connecting control devices as defined in the operating instructions and not for connecting external con-
sumers such as lamps, relays or contactors.
•
The devices must be installed in a cabinet with a protection class of at least IP 54.
Function diagram for manual start SNO 4062K / KM (Installation 1, 2, 3, 4, 5, 8)
t
t
M
A1
Function diagram for automatic start SNO 4062KM (Installation 6, 7)
t
t
<t
SP
A2
TP
t
= lock time, t
= operate time 1, t
SP
A1
t
= on time, t
= release time 1, t
M
R1
t
t
t
R1
M
A1
t
W
t
t
t
ASP
SP
A2
t
W
t
R1
= operate time 2, t
= test pulse time, t
A2
TP
= release time 2, t
= recovery time
R2
W
A1
S12
S31/S22
S34
K1, K2
13/14, 23/24
31/32
t
R2
= operate time for lock,
ASP
A1
S12
S31/S22
Lock (internal)
K1, K2
13/14, 23/24
31/32
5
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