NORSTAT Safety Relays - Manual (Page 28)

Expansion modules
DEVICE SAFE X4 / SAFE X4.1
Expansion module
APPLICATIONS for emergency stop relay according to VDE 0113
APPROVALS CE, TÜV, UL, C-UL
CONTACTS 4 normally open safety and 1 normally safety closed (feedback)
With (SAFE X4) and without (SAFE X4.1) opposite polarity between
SPECIAL CHARACTERISTICS Easy way to increase the number of contacts
Compact housing
LED Channel 1, channel 2 and fault
48, 110-127, 230 V AC (with galvanic disconnection/transformer)
OPERATING VOLTAGE 24 V AC / DC (without galvanic disconnection, but with a safety
POWER CONSUMPTION ca. 4 VA
START UP DELAY / FALLBACK TIME - / < 50 ms
CONTACT CAPACITY max. 6 A, 250 V AC, 24 V DC, sum of currents < 16 A
CONTACT CAPACITY min. at 24V DC (*) 6 mA
SIMULTANEITY
ENVIRONMENTAL TEMPERATURE - 25°C to + 55 °C
SWITCHING CAPACITY 1500 VA
CONTACT SECURITY 10 A quick acting
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
The expansion module is used to increase the number of outputs of a safety
relay according to VDE 0113. Several expansion modules can be connected
to one safety relay. A supply voltage must be applied at terminals A1 and
A2 in order to operate the device. If this is done there is a voltage of 24V DC
at terminal U1. Terminals K21 and K1 must be wired as shown in the
application examples. To start the module, closed safety circuits from the
safety relay must be connected with K21 and K1 and contacts 13-14,
23-24, 33-34, 43-44, 53-53, 63-64, 73-74 and 83-84 close. The LED´s
channel 1 and 2 illuminate. The fault LED illuminates if one or more safety
circuits are open. The fault LED will be illuminated while the expansion
module relay is operational.
For version with detachable clamps (screw - or cage clamps) ...
please ask our sales team!
U1
+ 24VDC
K21 K1
ohne Querschlusssicherheit /
without opposite polarity
mit Querschlusssicherheit /
with opposite polarity
13
14
23
24
U1
+ 24VDC
K1 U22
0 V
13
14
23
24
K21
FUNCTION CIRCUIT DIAGRAM
elektr. Sicherung
Transformator /
electr. Fuse
transformer
Überwachungslogik /
-
AC
A1
K1
Y2
DC
+
K2
14 24 34 44
Y1
Controller Logic
A2 U1 U22 K1 K21 13 23 33 43
Certifications according to
Safety relevant substance data
Depending on wiring (only max. values are given)
EN ISO 13849-1: PLe, Cat.4
MTTFd: 185 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