3
SRB303SQP-SS
Operating instructions
Safety-monitoring module
EN
Ambient conditions:
Ambient temperature:
–25°C … +60°C
(non condensing)
Storage and transport temperature:
–40°C … +85°C
(non condensing)
Protection class:
Enclosure: IP40,
Terminals: IP20,
Clearance: IP54
Resistance to shock:
10 g / 11 ms
Resistance to vibrations
to IEC 60068-2-6:
10 ... 55 Hz, amplitude 0.35 mm
Altitude:
max. 2,000 m
The data specified in this manual are applicable when the component is
operated with rated operating voltage U
e
±0%.
2.5 Safety classification
Standards:
ISO 13849-1, IEC 61508, IEC 62061
PL:
up to e
Control category:
up to 3
DC:
high
CCF:
> 65 points
PFH
D
:
≤ 2.0 x 10
-8
/ h
PFD
avg
:
1.8 x 10
-4
SIL:
up to 3
Service life:
20 years
The PFH value of 2.0 × 10
-8
/h applies to the combinations of contact
load (current through enabling contacts) and number of switching
cycles (n
op/y
) mentioned in the table below. At 365 operating days per
year and a 24-hours operation, this results in the below-mentioned
switching cycle times (t
cycle
) for the relay contacts.
Diverging applications upon request.
Contact load
n
op/y
t
cycle
20 %
525,600
1.0 min
40 %
210,240
2.5 min
60 %
75,087
7.0 min
80 %
30,918
17.0 min
100 %
12,223
43.0 min
3. Mounting
3.1 General mounting instructions
Mounting: snaps onto standard DIN rails to IEC 60715.
Snap the bottom of the enclosure slightly tilted forwards in the DIN rail
and push up until it latches in position.
3.2 Dimensions
All measurements in mm.
Device dimensions (H/W/D):
SRB303SQP-SS/PC: 100 x 22.5 x 121 mm
SRB303SQP-SS:
120 x 22.5 x 121 mm
SRB303SQP-SS/CC: 130 x 22.5 x 121 mm
4. Electrical connection
4.1 General information for electrical connection
The electrical connection may only be carried out by
authorised personnel in a de-energised condition.
To avoid EMC disturbances, the physical ambient
and operational conditions at the place where the
product is installed, must meet the provisions laid down
in the paragraph "Electromagnetic Compatibility (EMC)"
of EN 60204-1.
5. Operating principle and settings
5.1 Description of the terminals and LED indications
Pin
Function
LED
Function
A1
Operating voltage
+24 VDC / 24 VAC /
115VAC / 230VAC
U
B
U
i
Operating voltage OK
Internal fuse OK
A2
Operating voltage
0 VDC / 24 VAC /
115VAC / 230VAC
S1
Output feedback circuit
S2
Input feedback circuit /
Output start circuit
X3
Input external reset
X4
Input
automatic start
3
Output
safety edge channel 1
5
Input
safety edge channel 1
K1
Status K1
4
Output
safety edge channel 2
6
Input
safety edge channel 2
K2
Status K2
41 / 42
Signalling contact (NC)
51 / 52
Signalling contact (NC)
51 / 54
Signalling contact (NO)
13 / 14
23 / 24
33 / 34
Safety releases
UB
Ui
K1
K2
SRB303
SQP-SS
A2
PE
33 34 41 42
13 14 23 24
A1
3 4 5 6
X3 51 52 54
S2 S1 S2 X4
