NORSTAT Safety Relays - Manual (Page 19)

DEVICE SAFE CM
Safety controller for safety mats and safety bars with a maximum
APPLICATIONS resistance of 500 ohms
APPROVALS CE, TÜV, UL, C-UL
CONTACTS 4 safety semiconductor outputs
LED indicators for status and supply diagnostic
SPECIAL CHARACTERISTICS wearless contacts, "AND" function between several SAFE C possible,
automatic start possible
LED Power, channel 1 and channel 2
24 V DC ( + 25 - 20 % )
OPERATING VOLTAGE Overvoltage protection
POWER CONSUMPTION ca. 3 W
START UP DELAY / FALLBACK TIME < 30 ms / < 140ms (single channel < 360 ms)
CONTACT CAPACITY max. total current 1,8 A
CONTACT CAPACITY min. at 24V DC (*) infinite
SIMULTANEITY not necessary
ENVIRONMENTAL TEMPERATURE -25°C to + 55°C
SWITCHING CAPACITY to 43 W
CONTACT SECURITY short circuit proof
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
4 wire technology with wire break protection or 2 wire technology and
terminating resistor with wire break protection are optional. Start monitoring
and automatic start are optional. For monitoring of external relays to n.c.
contacts are put in series of the start circuit "AND" function among several
SAFE C is possible.
A1 + 24 V DC
A2 0 V DC
S33
S36 S37
14 34
K1
K2
A2
K1
K2
S34
S22 S12
S11 S21 S32
8k2
K1
K2
S35
FUNCTION CIRCUIT DIAGRAM
A1 A2
Power Input circuits
S12 S22 S34 S35 S36
Output
circuits
Combination
circuit
S11 S21 S33
MCU1
<Controller 1>
MCU2
<Controller 2> Saf
et y o
ut pu
t ci
rc ui ts
14
24
34
44
S32 S37
Certifications according to
Safety relevant substance data
Depending on wiring (only max. values are given)
EN ISO 13849-1/ EN 61508: PLe, Cat. 4 / SIL3
MTTFd: 163 years / high, DC: high, CCF: achieved
PFH: 2,87*10 -9 1 /
h
, PFD: 2,01*10 -6 1 /
h,
SFF: 0,9573
NORSTAT INC. 300 Roundhill Dr. Rockaway, NJ 07866 Tel: 973-586-2500 Fax: 973-586-1590 www.norstat.com