14
Close the START contact: the
safety outputs close and the
CH1
,
CH2
LED turn on .
STEP 3
Release both input con-
tacts: the safety outputs open and
the
CH1
,
CH2
LED turn off .
During STEP 2 check that the
safety outputs do not close - with
manual START configuration -
simply operating both input con-
tacts, without pushing the START
pushbutton .
STEP 4
(This step must be per-
formed first on one input contact,
S12, then on the other one, S21
and only for 2-outputs ESPE) .
Repeat the procedure from STEP
2, operating both input switches
(and START contact for manual
START configuration, so that the
safety outputs are closed), and
then releasing / disconnecting only
one of them and checking that the
safety outputs open: re-operate/re-
connect the input switch, push the
START button and check that the
safety outputs do not close .
The STEPS 3 and 4 must be
repeated for each input device
connected to the input terminals .
USAGE PRECAUTIONS
- The ESPE must be carefully
installed and positioned in order
to reach a high protection level
for the operator .
The European Standards state
the minimum distance between
the ESPE and the hazardous
area, in order to avoid the pos-
sibility for the operator to reach
the hazardous area when the
conditions are still dangerous .
These distances depend on the
stopping time of the machine, on
the response time of the module
+ ESPE, on the resolution, on
the distance from the ground
(for horizontal mounting) of the
ESPE, and on the speed of
the operator approaching to the
dangerous area .
All plants must fully comply with
the requirements of the stan-
dards listed above and of all
the standards involved in each
specific application .
- The safety module can check
the integrity of external contac-
tors or expansion modules sim-
ply connecting their N .C . control
contacts in series to the START
contact (or to the bridge, in
automatic START configuration)
between X1-X2 terminals .
- It is recommended to connect
a fuse in series to the safety
outputs to reduce the risk of the
safety outputs contacts welding
(see outputs technical data) .
- Never, in any situation,connect
spark quenching unit circuits in
parallel to safety outputs con-
tacts: the safety function would
