Eaton easySafety, Manual

Page: 54 / 695

Installation
50
02/16 MN05013001Z EN
Figure 13: Connecting outputs, in this case QS 1
The corresponding relay coils are triggered in the standard
circuit diagram or safety circuit diagram via outputs QS1 -
QS4 and QR1. You can use the signal states of the output
relays in the standard circuit diagram or safety circuit
diagram as N/O contacts for further switch conditions.
The relay or transistor outputs are used to switch loads such
as Connecting: Contactors, relays or motors. Prior to
installation observe the technical limit values and data for
the outputs (
a
section “Technical data”, page 659).
QS1
1 2
QS1
h
Caution!
easySafety may be used in applications up to safety level 3
in continuous operation in accordance with EN 50156 if:
• the time between the functional checks on easySafety
do not exceed six months.
• redundant relay contacts are used for the safety discon-
nection of the fuel supply on furnaces. This can be
achieved by:
– series connection of two QS outputs (ES4P-221-
DR...), a figure 15 on page 51.
– use of the internal redundant relay output QR1
(ES4P-221-DM...), a figure 14 on page 51.