Pepperl+Fuchs VAA-2E-KE1-S, Оригинальное руководство пользователя

Страница: 9 / 24

VAA-2E-KE1-S
Product Description
1
8
2
3
1
4
2
0
2
0
-0
9
9
3 Product Description
3.1 AS-Interface Safety at Work VAA-2E-KE1-S
The VAA-2E-KE1 is an AS-Interface safety module with two safety-related inputs. A dual-chan-
nel mechanical switch or single-channel mechanical switch can be connected to the two
inputs. The housing is only 22.5 mm wide and 48.5 mm tall and takes up little space in the
switch cabinet. A snap-on function mounts the module onto the 35 mm mounting strip in line
with EN 50022. An addressing socket is integrated in the module.
The connection is made via plug-in terminals. A four-way (black) terminal block is used for the
inputs. The AS-Interface is connected via a two-way (yellow) terminal block. Each channel has
an LED mounted on the top side of the module to display the current switching status. There is
also an LED for monitoring AS-Interface communication and to display that the module has the
address 0.
If single-channel positive-action mechanical switches are connected, the module can be
graded up to category 2 / PL c in accordance with EN ISO 13849-1 if wired appropriately and
the switch is selected accordingly. If a dual-channel positive-action mechanical switch is con-
nected, the module can be graded up to category 4 / PL e in accordance with EN ISO 13849-1
if wired appropriately and the switch is selected accordingly. As per the approval in line with IEC
61508, a Safety Integrity Level of up to SIL 3 can be reached. Both module inputs are occupied.
The two channels belonging to the mechanical switch are monitored for crossed circuits. An
LED displays the AS-Interface voltage.
3.2 Connections and Indications
Connection layout
Safety-Related Inputs
Designation Description
S1+ Mechanical switch 1+
S1- Mechanical switch 1-
S2+ Mechanical switch 2+
S2- Mechanical switch 2-
+
1 2
S
FAULT
PWR
ADDR
AS-i AS-i
S
S+1 S-1 S+2 S-2