1
2
3
CZSR8401-1A is
a
safety relay
control module, which could control its
output
contacts in segregation
through
LVDC 24V control signal, and its
output circuit could withstand load with voltage of 230V. There are triple
redundant technology and fuse protection in the output circuit in order
to prevent contacts welding. The internal circuit design with the Fail-
Safe technology could achieve SIL3 of the Functional Safety Integrity
Level in accordance with IEC61508 international standard.
114
.
5mm
22
.
5mm
9
9
.0
m
m
3
5
.0
m
m
Summarize
Specification
Safety
Safety integrity level (SIL):
SIL 3 in accordance with IEC61508
Hardware fault tolerant (HFT):
1 in accordance with IEC61508
Safe failure fraction (SFF):
99% in accordance with IEC61508
Average probability of dangerous failure (PFH ):
3.09E-10/h
D
in accordance with IEC61508
Stop category: 0
in accordance with EN60204-1
B :
10D
Ie
2A
1A
0.5A
Cycles
180,000
300,000
400,000
Ie
2A
1A
0.5A
Cycles
500,000
580,000
600,000
Block Diagram
Typical Application
Wiring Diagrams
POWER
：
: 24V DC
: 16 35
: ≤
60mA
(
24V
DC)
INPUT
：
≤
:
≤
15
Ω
OUTPUT
：
：
1NO
: silver cadmium oxide,
: 2.5A (Internal protection)
: 2A/230V AC; 2A/40V DC
:
≤
10ms
Delay-on de-energisation:
≤
10ms
≤
100ms
: 20ms
Supply voltage
Voltage range
Current consumption
Input current: 60mA(24V DC)
Cable resistance
Input devices: safety switch,
Number of contacts
Contact material
Switch-on delay
Recovery time:
Supply interruption before de-energisation
~
V
DC, non
-
polarized
contact switch
0.3
μ
m Au
Fuse rating
Contact
loading
TIMES
：
24VDC
,
L
/
R
=
7ms
:
230VAC
,
cos
φ=
0
.
4
：
A1
A2
13
14
K1
K2
K3
Safety
control
DO Input
14
13
L1
K8
K7
N
S1
A2
A1
SIS
DO
N
A2
A1
Switch Input
POWER INPUT
OUTPUT
Environmental
Characteristics
EMC:
In accordance with EN60947, EN61000-6-2, EN61000-6-4
Vibration frequency:
10Hz ~ 55Hz
Vibration amplitude:
0.35mm
Ambient
temperature:
-20
℃
~ +60
℃
Storage
temperature:
-40
℃
~ +85
℃
10% ~ 90%
Relative
humidity:
Insulation characteristic
Clearance
and
creepage:
In accordance with EN60947-1
Overvoltage
category:
Ⅲ
Pollution degree:
2
Protection type:
IP20
Elevation:
≤
2000m
Rated insulation voltage:
250V AC
Rated impulse voltage:
6000V (1.2/50 s)
Dielectric
strength:
1500V AC, 1min
µ
0V
+
24V
DO2
DO1
SIS
M1
K8
K8
K7
K7
A1
B1
13
23
A2
B2
14
24
CZ
SR8401
-
1A
SIS DO signal input
K7, K8: Contactors
M1: Motor
Dimensions
Dimensions(L×H×W):
114.5mm×99.0mm×22.5mm
Weight: 150g
