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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. Assum-
ing 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 cy-
10d
cles/year.
• The safety-related parameters are only valid when the relays are switched at least once per year.
• 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 safety functions are not evaluated by UL. The approval is accomplished according to UL 508, general use applications.
Function diagram SNO 4063K /KM manual start with starting lockout (installation 1, 2, 3, 5 and 6)
t
t
M
A1
Function diagram SNO 4063KM automatic start without starting lockout (installation 4)
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, 33/34
t
R2
A1
S12
S31/S22
S35
Lock (internal)
K1. K2
13/14, 23/24, 33/34
t
R2
= operate time for lock,
ASP
5
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