7.2.5 Safety mode without restart interlock with valve or contactor check
(Only when changing systems from LSUW to ULVT and retaining the switchgear)
e.g. For the protection of force-driven operating materials or the implementation of the restart interlock in the machine
Connection diagram for operating mode "C"
FIESSLER
E L E K T R O N I K
28
Function
Having switched on the safety facility, the protective field must
be penetrated in order to carry out a startup test. Subsequent to
the re-release of the protective field, the output contacts 16-17
and 20-21 close and check contact 18-19 is interrupted. The
output 18-19 serves as a check contact and is thus not
permissible as a contact for activating the hazardous
movement.
When the protective field is penetrated, the output contacts 16-
17 and 20-21 open the check contact 18-19 closes.
The connecting contactor 6-7 also provides an additional check
of the contactors which activate the hazardous movement.
In this operating mode, it must be ensured that it
is not possible to walk behind the light barrier!
(Refer to Section 4.4)
1
2
3
1
2
3
4
5
6
7
12
12
13
15
14
4
3
6
-
7
+
2
3
+
2
1
5
1
-
OSSD2
OSSD1
EDM
Start
6
FIESSLER
E L E K T R O N I K
Schaltgerät BWS Typ 4
Switching unit ESPE Type 4
Boîtier de commande ESPS Type 4
Nr./Baujahr
Ansprechzeit
Temp.
Schutzart
Versorgung
Kontaktbel.
Kastellstr.9 73734 Esslingen
Tel. 0711/ 91 96 97-0
Achtung
Vor Abziehen der Klemmleiste Netzspannung abschalten!
Attention
Turn off the supply voltage !
Attention
Couper l'alimentation !
A
1
2
3
7
4
5
8
10
9
17
B
C
12
13 14 15
16
LSUW NSR 3-1 K
No./year of construction
response time
t
emp.
enclosure rating
supply voltage
contact max
No./année de fabrication
temps de réponse
temp.
degré de protection
tension d'alimentation
charge contact maxi.
.................................
30 mS
-10… + 55 °C
IP 20
24VDC/115VAC/230VAC
-15% +10 %, 50Hz
2 A, 250 VAC
18
Netz
tension
power
LS Frei
BS libre
LC free
output interupted
sortie interrompue
Ausgang unterbrochen
output free
sortie libre
Ausgang frei
interdiction de redémarrage
restart interlock
Wiederanlaufsperre
19 20 21
22
LS unterbrochen
BS interrompue
LC interrupted
D
Made in Germany
11
TÜV Rheinland
AA
AA
AA
TÜV Rheinland
N
L1 230 VAC
L1 115 VAC
0 V DC
+24VDC
k1
k2
X
X
X
X
M 2,0 A
K1
K2
M 2,0 A
k1
k2
M 2,0 A
M 2,0 A
M 2,0 A
X
7 Additional functions with safety switchgears
- "C"
LSUW NSR 3-1 K switchgear
The hazardous movement must
only be activated via output
contacts 16-17 and 20-21.
The output contacts are
potential-free, monitored, guided
make contacts are must be
loaded with max. 2 A/250 VAC
or 60 VDC, 30 W. With inductive
load, the load (not the contacts)
is to be switched at the same
time as the spark arresting
sections (e.g. 0.22 uF, 220
Ω
.
Optional power supply:
The contact 18 - 19 serves as an
alarm path and is not permitted
to activate the hazardous closing
movement.
To increase the switching
reliability, collateral contacts
should be used on terminals 5,
6, 7, 8, 9, 10, 11, D and 22. No
external potential must be
connected to these terminals.
When performing electric
welding work on the machine,
the terminal strip of the
switchgear is to be removed,
otherwise the vagrant welding
currents may cause destruction
of the installed electronics.
0V
24V DC
L1
N
L1
BA - ULVT
Optional power supply:
Terminal 1 & 2: 230 VAC -15% + 10%
or
Terminal 1 & 3: 115 VAC -15% + 10%
or
Terminal A & 12: 24 VDC -10% + 20%
Cable routing:
- Separately from power lines.
- The cable routing for the contactor
check (te0rminals 6 & 7) must prevent short-
circuiting of wires.
- On terminals 4, 5, 8, 9, the max. cable length is
limited to <= 1m.
ULVTS Transmitter
ULVTE Receiver
Set operating mode:
Without contactor
check
Without restart
interlock
(both functions are
performed by
Voltage depending on type of contactor
L1 = 230 V AC
or 24 V DC
Contactor
monitoring
X = For interruption
of hazardous
movement
Spark arresting
sections
N
or
0V
Fuses to be sized
so that contact
touching is
prevented reliably!
X
X
For 230 V AC and 115 V AC :
terminal 3
For 24 V DC :
terminal C
Содержание ESPE Type 4
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