NORSTAT Safety Relays User Manual
Page 22
Control devices for safety light barriers
DEVICE
SAFE L.2
Emergency stop relay
APPLICATIONS
for safety light curtains / barriers
APPROVALS
CE, TÜV, UL, C-UL
CONTACTS
3 normally open safety
LED indicators for status and supply diagnostic
SPECIAL CHARACTERISTICS
Without opposite polarity between channels
start control choosable by a extern bridge
LED
Power, channel 1, channel 2 and restart interlock
OPERATING VOLTAGE
24 V DC (electronic fuse)
POWER CONSUMPTION
ca. 2,5 W
START UP DELAY / FALLBACK TIME
< 50 ms / < 30 ms
CONTACT CAPACITY max.
6 A, 250 V AC, 24 V DC
CONTACT CAPACITY min. at 24V DC (*)
10 mA
SIMULTANEITY
Simultaneous: ca. 40ms
ENVIRONMENTAL TEMPERATURE
- 25 °C to + 55 °C
SWITCHING CAPACITY
1500 VA (resistive load)
CONTACT SECURITY
6 A quick acting or 4 A time lag
OPERATING MODE
(*) We offer all devices who have a CONTACT
CAPACITY of min. 100 mA at 24 V DC with
hard gold-plated contacts. In this way the
CONTACT CAPACITY of min. 100 mA is only 4 mA.
Please ask our sales team!
CONNECTION DIAGRAM
A supply voltage must be applied to terminals A1 and A2. The "Power" and
"restart interlock" LED´s illuminate. If this is done, a voltage of 24 V DC is be
available on the terminal S11. Terminals S12 and S22 must be wired as
shown in the application examples. To start the module, the terminals Y1
and Y2 must be bridged over normally open contact. In the following the
contacts 13-14, 23-24 and 33-34 are closed.
The LED´s of channel 1, channel 2 are illuminate and "restart interlock"
must be switched off. In series to the start-button, wired on terminals Y1 and
Y2, an external contactor can be controlled. Monitoring of the reset circuit
can be configured by external bridge between terminals BR1 an BR2.
For version with detachable clamps (screw - or cage clamps) ...
please ask our sales team!
Y1
S12 S22
Y2
Start
BWS-Empfänger
ESPE - receiver
PNP
PNP
A1 + 24 V DC
A2 0 V DC
FUNCTION CIRCUIT DIAGRAM
Überwachungslogik /
control logic
K2
K1
elektr.
Sicherung /
electr. fuse
A1
S12
(+)
BR1
S11
BR2
S22
Y1
Y2
23
13
33
K2
K1
(-)
A2
~~
=
+
-
~
~
24
14
34
Certifications according to
Safety relevant substance data
Depending on wiring (only max. values are given)
EN ISO 13849-1: PLe, Cat.4
MTTFd: 36,16 years / high, DC: 99% / high,
CCF: achieved
NORSTAT INC. 300 Roundhill Dr. Rockaway, NJ 07866
Tel: 973-586-2500 Fax: 973-586-1590 www.norstat.com