2
Operating instructions
Output expander module
SRB402EM
SRB402EM/CC
EN
The entire concept of the control system, in which the safety
component is integrated, must be validated to EN ISO 13849-2.
There are no residual risks, provided that the safety instructions as well
as the instructions regarding mounting, commissioning, operation and
maintenance are observed.
1.6 Warning about misuse
In case of inadequate or improper use or manipulations of
the component, personal hazards or damage to machinery
or plant components cannot be excluded. The relevant
requirements of the standards EN 1088 and EN ISO 13850
must be observed.
1.7 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from
defective mounting or failure to comply with this operating instructions
manual. The manufacturer shall accept no liability for damages
resulting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary
repairs, conversions and modifications to the device are strictly
forbidden; the manufacturer shall accept no liability for damages
resulting from such invasive work, arbitrary repairs, conversions and/or
modifications to the device.
The safety-monitoring module must only be used when the enclosure is
closed, i.e. with the front cover fitted.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
SRB402EM
➀
No.
Option
Description
➀
plug-in screw terminals 0.25…2.5 mm²
/CC
plug-in cage clamps 0.25 … 1.5 mm²
This device is designed as output expander module. The
safety function is only realised in conjunction with the basic
device. To this effect, the device must be connected in
accordance with the wiring example!
2.2 Special versions
For special versions, which are not listed in the order code below 2.1,
these specifications apply accordingly, provided that they correspond to
the standard version.
2.3 Destination and use
The output expander modules for integration in safety circuits are
designed for fitting in control cabinets. They are used for the safe
evaluation of the signals and the safe contact multiplication of an
upstream safety-monitoring module.
The function is defined as the opening of the enabling circuits 13-14,
23-24, 33-34 and 43-44 when the supply voltage A1-A2 is
disconnected. The safety-relevant current paths with the output
contacts 13-14, 23-24, 33-34 and 43-44 meet the following
requirements under observation of a PFH value assessment
(also refer to chapter 2.5 "Safety classification"):
– Control category 4 – PL e to DIN EN ISO 13849-1
– Corresponds to SIL 3 to DIN EN 61508-2
– SILCL 3 to DIN EN 62061
To determine the Performance Level (PL) of the entire safety function
(e.g. sensor, logic, actuator) to DIN EN ISO 13849-1, an analysis of all
relevant components is required.
2.4 Technical data
General data:
Standards:
IEC/EN 60204-1, EN 60947-5-1;
EN ISO 13849-1, IEC 61508
Climate resistance:
EN 60068-2-78
Mounting:
Snaps onto standard DIN rail to EN 60715
Terminal designations:
EN 60947-1
Material of the housings:
Plastic, glass-fibre reinforced
thermoplastic, ventilated
Material of the contacts:
AgSnO, self-cleaning, positive drive
Weight:
215 g
Start conditions:
Automatic
Feedback circuit (Y/N):
yes
Pull-in delay:
typ. 30 / max. 45 ms
Drop-out delay:
typ. 25 / max. 35 ms
Mechanical data:
Connection type:
refer to 2.1 Ordering code
Cable section:
refer to 2.1 Ordering code
Connecting cable:
rigid or flexible
Tightening torque for the terminals:
0.6 Nm
With removable terminals (Y/N):
yes
Mechanical life:
10 million operations
Electrical life:
Derating curve available on request
Resistance to shock:
10 g / 11 ms
Resistance to vibrations to EN 60068-2-6:
10 ... 55 Hz,
amplitude 0.35 mm
Ambient conditions:
Ambient temperature:
– 25 °C … +45 °C
Storage and transport temperature:
– 40 °C … +85 °C
Protection class:
Enclosure: IP40
Terminals: IP20
Clearance: IP54
Air clearances and creepage
distances to IEC/EN 60664-1:
4 kV/2 (basic insulation)
EMC rating:
to EMC Directive
Electrical data:
Contact resistance in new state:
max. 100 mΩ
Power consumption:
max. 1.0 VA
Rated operating voltage U
e
:
24 VDC –15% / +20%,
residual ripple max. 10%,
24 VAC –15% / +10%
Frequency range:
50 / 60 Hz
Max. fuse rating of the operating voltage:
F1: T 1.0 A / 250 V
Monitored inputs:
Short-circuit recognition (Y/N):
No
Wire breakage detection (Y/N):
Yes
Earth leakage detection (Y/N):
Yes
Number of NO contacts:
0
Number of NC contacts:
0
Conduction resistance:
max. 40 Ω
Outputs:
Number of safety contacts:
4
Number of auxiliary contacts:
2
Number of signalling outputs:
0
Switching capacity of the safety contacts:
13-14; 23-24; 33-34; 43-44:
max. 250 V, 6 A ohmic (inductive
in case of appropriate protective wiring);
min. 10 V / 10 mA
Switching capacity of the auxiliary contacts:
51-52; 61-62:
24 VDC / 2 A
Fuse rating of the safety contacts
:
external (I
k
= 1000 A)
to EN 60947-5-1
8 A quick blow, 6 A slow blow
Fuse rating for the auxiliary contacts:
external (I
k
= 1000 A)
to EN 60947-5-1
Safety fuse 2.5 A quick blow, 2 A slow blow
Utilisation category to IEC/EN 60947-5-1:
AC-15: 230 VAC / 6 A
DC-13: 24 VDC / 6 A
