Pag. 23
Instruction Manual
EE
nn
gg
lliiss
hh
Pag. 22
Danieli Automation - ID6100
1
10
0
1
11
1
1
10
0 C
Co
orrrre
ec
ctt iin
nsstta
alllla
attiio
on
n o
off
tth
he
e p
ph
ho
otto
oc
ce
ellll..
1
11
1 E
Exxa
am
mp
plle
e o
off p
po
oo
orr
p
po
ossiittiio
on
niin
ng
g,, e
exxtte
errn
na
all
llu
um
miin
no
ou
uss sso
ou
urrc
ce
ess c
ca
an
n
c
co
om
mp
prro
om
miisse
e
o
op
pe
erra
attiio
on
nss..
6
6..2
2 P
Prro
otte
ec
cttiio
on
n
the photodetector should be provided
with additional mechanical and thermal
protection against accidental impact and
excessive heat.
Figure 14 shows an example of a shiel-
ded support designed to allow easy
access for any necessary calibration
and/or maintenance operations.
6
6..3
3 C
Co
oo
olliin
ng
g
If the ambient temperature can be expec-
ted to exceed 40°C (104°F), the cooling
circuit incorporated in the body of the
photodetector should be employed.
If the cooling requirements are moderate
then compressed air should be used,
while water
(or other cooling fluid) should only be
used if strictly necessary.
The water flow rate is 3-5 l/min (100 to
170 oz/min), at a maximum pressure of 2
bar (29 psi).
Warning!
Excessive cooling of the body of the photodetector
in relation to the ambient temperature can lead to
condensation on the body and the glass window of
the instrument which may interfere with the ability
to detect objects correctly.
Non reflective
protection shield
7
7..1
1 S
Se
ellff tte
esstt
Applying 24V -DC supply to the terminals E and F of the connector will activate an infrared source
inside the photodetector.
This will enable the operator to check the correct performance of the optical and electronic devices
and the connections between the photodetector, and the receiving device it is connected to.
A self test sequence can also be activated by the plant automation, in any time intervals when there
are no objects to be detected.
7
7..2
2 P
Pe
erriio
od
diic
c iin
nssp
pe
ec
cttiio
on
nss
The periodic preventive maintenance program for the photodetector includes the following checks
and operations:
Check the fastening of the photodetector to the support for both stability and aiming direction.
Check the efficiency of the protection devices provided with the unit.
Check the glass window of the photodetector: clean it or replace it as needed.
Check the detection conditions, and remove any scales that could have formed within the obser-
vation field.
Check the state of the connector and the electrical cable,and clean ot replace them as needed.
7
7..3
3 T
Trro
ou
ub
blle
essh
ho
oo
ottiin
ng
g
If a malfunction is suspected in the photodetector when detecting objects, follow these instructions:
Perform the checks indicated for periodic maintenance, given in point 7.2. above.
Check the operation with the self-test procedure.
If the self test performed correctly:
1. Inspect the glass window, and clean or replace it if necessary,
2. Check the aiming of the photodetector and adjust it if necessary.
If even the self-test does not work:
1. Make sure that the unit is powered-up.
2. Check the connector.
3. Check the external wiring.
7
7.. M
MA
AIIN
NT
TE
EN
NA
AN
NC
CE
E
