Connect Start Input X2; Principle Wiring For Pp Control; Principle Wiring For Ncnc Or Ncno Control; Principle Wiring For Pm Control - Emerson AVENTICS AS3-SV Serie Instrucciones De Servicio

Danger of injury due to valve malfunction!
A valve malfunction (e.g. failure to open the contact) may occur if you use sig-
nal outputs in safety circuits.
Never use signal outputs in safety circuits.
u
Figure 6 shows the principle use of the signal output.

7.5.3 Connect start input X2

Danger of injury!
The use of the "automatic start" function is only permissible in terms of IEC/
EN 60204-1 in conjunction with other appropriate measures for machine start-
up!
Make sure that the AS3-SV safety valve cannot be activated when using the
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"automatic start" function. For example, use an additional safety module
with start button, which prevents immediate switch on after release of an
emergency OFF button or after applying the operating voltage.
Start input X2 is not active during control with PP or PM. The AS3-SV safety valve
performs an automatic start. Start input X2 must be connected with 24 V DC.
Start input X2 is active during control with NCNC or NCNO. Start input X2 can be
connected with a button, for example. Activation of the AS3-SV safety valve
starts when the button is released. Actuation of the button is monitored. The
button may have a maximum actuation time between 0.03 s and 3 s. Activation
does not take place if the time is exceeded.
The contacts on the X2D plug, M12 female safety inputs have the following as-
signment:
X2D Pin Function
1 S21 clock signal for S22
S21
1
2 S22 safety input 2
S22
2
S11
3 S11 clock signal for S12
3
S12
4 S12 safety input 1
4
nc
5
5 nc, not connected (not connect)

7.5.4 Principle wiring for PP control

When using the PP control, safety inputs 1 and 2 must each be connected with a
safe output signal. The "automatic start" function is used in this operating mode.
X2 is therefore connected with 24 V DC.
For principle wiring for PP control, see Fig. 7.

7.5.5 Principle wiring for NCNC or NCNO control

See Figs. 8, 9
When using the NCNC or NCNO control, the safety switches are supplied by the
clock signal (S21, S11). Safety input 1 (S12) is connected with S11 via the switch.
Safety input 2 (S22) is connected with S21 via the switch. Cross-circuits on the
safety inputs are monitored by the AS3-SV safety valve in this control. Start (pres-
surization) takes place using the start input X2 in this control.

7.5.6 Principle wiring for PM control

See Fig. 10
Input M of the AS3-SV safety valve must be connected with the safe negative out-
put D0-M (e.g. safe output assembly) of a PLC. Input P of the AS3-SV safety valve
must be connected with the safe positive output D0-P (e.g. safe output assem-
bly) of a PLC. The "automatic start" function is used in this operating mode,
therefore X2 must be connected with 24 V DC. The contacts have the following
assignment for PM control:
X2D Pin Function
1 nc, not connected (not connect)
nc
1
2 nc, not connected (not connect)
nc
2
M
3 M-input (safety input 2)
3
P
4 P-input (safety input 1)
4
nc
5
5 nc, not connected (not connect)
AVENTICS™ AS3-SV | R412026750-BAL-001-AE | English
WARNING
WARNING

7.5.7 Connect ground (FE, function potential compensation)

A ground connection is available on the device. To discharge EMC interferences,
connect the FE connection (9), see Fig. 2, to the AS3-SV safety valve via a low-im-
pedance line to functional earth. The line cross-section must be selected accord-
ing to the application and implemented according to DIN EN 60204-1/IEC
60204-1.

8 Commissioning

Danger of injury while working with the system!
Working with the system while it is running can cause major injuries from mov-
ing machinery.
1. Maintain a sufficient safety distance to moving machine components.
2. Do not work with the system while it is running.

8.1 Checking the connections

Make sure that all plugs are correctly connected before commissioning.

8.2 Take the AS3-SV safety valve into operation

Proceed as follows in order to take the AS3-SV safety valve into operation:
1. Switch on the pneumatic supply.
2. Switch on the 24 V DC supply voltage.

8.2.1 "Pressurization" function

If the AS3-SV safety valve should pressurize the machines, you must switch both
safety inputs 1 and 2 with the right signal sequence. If the signal sequence is not
correct, the AS3-SV safety valve goes into the safe state. Exhausting of the oper-
ating line is the safe state.

8.2.2 "Exhaust" function

If the AS3-SV safety valve should exhaust the machines, you must switch both
safety inputs 1 and 2 with the right signal sequence. The AS3-SV safety valve goes
into the safe state if the AS3-SV safety valve is isolated from the supply voltage or
if a fault occurs during operation. Exhausting of the operating line is the safe
state.

8.2.3 Signal sequence when switching on

The following signal sequence results when switching on the AS3-SV safety valve
(see Fig. 11).
The AS3-SV safety valve is not supplied with 24 V DC before time 1. Signal output
(41, 42) is open (41, 42=0) and the RUN-LED is off (0). The AS3-SV safety valve ex-
hausts the operating line.
The AS3-SV safety valve is supplied with 24 V DC at time 1. The RUN LED and all
other LEDs flash briefly when switched on. The device performs a self-test. This
self-test takes a maximum of 1.5 s. After the self-test (4) has been successfully
carried out, the AS3-SV safety valve is in the ready state (2). The RUN-LED (1) is il-
luminated in the ready state and the signal output is closed (41, 42=1). The AS3-
SV safety valve is ready for control via both safety inputs.
If the device is disconnected from the supply voltage at time 4,
• the AS3-SV safety valve exhausts,
• the RUN LED is not illuminated and
• the signal output is open (41, 42=0).

8.2.4 Signal sequence for PP control

The following signal sequence results during PP control of the AS3-SV safety valve
(see Fig. 12).
The AS3-SV safety valve is in the ready state before time 1, but is not activated. In
this state (AS3-SV=0) the AS3-SV safety valve exhausts the operating line.
Signal input S22 is actuated with 24 V at time 1. If signal input S12 is also actu-
ated with 24 V within synchronization time (4), the AS3-SV safety valve goes into
the pressurized state (AS3-SV=1) at time 2. The OUT LED lights up and indicates
the activated state.
The synchronization time for monitoring (4) is 0.5 s. The state of signal inputs 1
and 2 is displayed by the IN 1 LED and IN 2 LED.
WARNING
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