3
SRB-E-204ST / SRB-E-204PE
Operating instructions
Safety-monitoring module
EN
2.4 Technical data
General data
Standards:
EN 60204-1, IEC 60947-5-1; ISO 13849-1,
IEC 62061, IEC 61508
EMC rating:
to EMC Directive
Air clearances and creepage distances:
to IEC 60664-1
Mounting:
standard DIN rail to EN 60715
Terminal designations:
IEC 60947-1
Electrical characteristics:
Rated operating voltage U
e
:
24 VDC –20%/+20%,
residual ripple max. 10%
Mains unit/mains power supply:
SELV network as per EN 60950;
mains power supply must harmonise with device
safety (characteristic/melting property) so that
triggering is assured.
Power consumption:
3 W (+ load of the safety outputs)
Fuse rating for the operating voltage:
we recommend a circuit
breaker type Z (max. 16 A) or a fine
fuse (max. 15 A, delayed action)
UL Rating of external fuse:
max. 16 A, only use fuses in
accordance with UL 248 series
Insulation values to IEC 60664-1:
- Rated insulation voltage U
i
:
50 V
- Rated impulse withstand voltage U
imp
:
0.8 kV
- Overvoltage category:
III
- Degree of pollution:
2
Pull-in delay:
< 150 ms
Drop-out delay in case of "emergency stop":
< 10 ms
Drop-out delay on "supply failure":
< 10 ms
Bridging in case of voltage drops:
typ. 5 ms
Readiness after switching on voltage [s]:
< 1.5 sec.
Control current circuits/inputs:
Inputs S12, S22:
24 VDC/8 mA
Inputs X2, X3, X7:
24 VDC/8 mA
Clock outputs S11, S21:
> 20 VDC, 10 mA per output
Cable length:
1500 m with 1.5 mm²; 2500 m with 2.5 mm²
Conduction resistance:
max. 40 Ω
Semi-conductor outputs:
Switching capacity of the safety outputs Q:
max. 2 A
Voltage drop:
< 0.5 V
Leakage current:
< 1 mA
Max. fuse rating of the safety outputs:
refer to "Operating voltage"
Test impulse to Q1, Q2:
< 1 ms (negative)
< 100 µs (positive)
Utilisation category to IEC 60947-5-1:
DC-13: 24 V / 2A
Switching capacity of signaling outputs:
semi-conductor outputs Y1-Y4:
24 VDC/100 mA
Fuse rating of the signalling outputs:
internal electronic trip,
tripping current > 100 mA
Max. switching cycles / minute:
60
Inductive consumers:
provision is to be made for suitable
protective wiring for suppression
Mechanical data:
Connection type:
refer to 2.1
Cable section:
refer to 2.1
Connecting cable:
rigid or flexible
Tightening torque for the terminals:
0.5 Nm
Material of enclosure:
glass-fibre reinforced thermoplastic, ventilated
Weight:
150 g
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:
30 g / 11 ms
Resistance to vibrations
to EN 60068-2-6:
10 ...
55 Hz, amplitude 0.35 mm
Altitude:
max. 2,000 m
2.5 Derating
No derating with individual installation of modules.
Derating on request if several modules are installed one after the
other without spacing and with maximum output load and ambient
temperatures.
2.6 Safety classification of semi-conductor output
Standards:
ISO 13849-1, IEC 61508, IEC 62061
PL:
e
Control Category:
4
PFH
D
:
≤ 2.66 x 10
-9
/ h
PFD
avg
:
≤ 2.42 x 10
-5
SIL:
suitable for SIL 3 applications
Service life:
20 years
3. Mounting
3.1 General mounting instructions
Mounting: snaps onto standard DIN rails to EN 60715.
Hook bottom of enclosure in DIN rail and push down until it engages in
position.
3.2 Dimensions
All measurements in mm.
Device dimensions (H/W/D): 98 x 22.5 x 115 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.
If mains unit is a new installation or a replacement, the
connector of the output level must be removed and correct
connection of the power supply (A1) must be checked.
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.
