NORSTAT Safety Relays - Handbuch (Seite 42)

application guide safety relays from riese electronic page 40
9 Safety combination / Linkage
for example SAFE C
Block diagram
Features:
ƒ Cyclical self-monitoring by internal controllers
ƒ Controllers supervise themselves independently by internal communication
ƒ Wear-free, short circuit proof safety semiconductor outputs (on-state: 24V DC, off-state: 0V DC)
ƒ Wear free, short circuit proof auxiliary output
ƒ Cyclic monitoring of the safety outputs by clocked operation
ƒ Opposite polarity between channels (only with two-channel configuration)
ƒ Up to 3A of load current
ƒ Alternatively single- or two-channel configuration
ƒ Monitoring of the reset circuit
ƒ Monitoring of complete plants by the linkage of several devices among themselves
AND – linkage between three SAFE C1 devices
AND – linkage between two SAFE C1 devices
A1 A2
Power Input circuits
S12 S22 S34 S35 S32 Y1
Output
circuits Combination
circuit
S11 S12 S33
MCU1
<Controller 1>
MCU2
<Controller 2>
Saf
et
y o
ut
pu
t circ
uit
s
14
24
34
42
Terminal(s) Description of function
S11, S12, S21, S22 Activation- and release contacts
S32, S33 Combination circuit configuration
S34 Reset circuit input
S35 Operating mode (1/2-channel)
14, 24, 34 Safety semicontactor outputs
42 Auxiliary output (PLC)
A
14
24
B
S33
S32
S11
24
14
K2
K3
K1
e-stop
safety gate
A
14
24
C
S33
S22
S12
24
14
K1 K2
14
24
B
S32
34
K3
A
14
24
C
S33
S22
S12
K1 K2
S32
e-stop
safety gate
NORSTAT INC. 300 Roundhill Dr. Rockaway, NJ 07866 Tel: 973-586-2500 Fax: 973-586-1590 www.norstat.com