2
Operating instructions
Safety-monitoring module
SRB NA-R-C.15
EN
The information contained in this operating instructions manual is pro-
vided without liability and is subject to technical modifications.
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 improper use or manipulation of the safety
switchgear, personal hazards or damages 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 result-
ing from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary re-
pairs, 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:
SRB NA-R-C.15 24VDC
Only if the information described in this operating instructions
manual are realised correctly, the safety function and therefore
the compliance with the Machinery Directive is maintained.
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 safety-monitoring modules for integration in safety circuits are
designed for fitting in control cabinets. They are used for the safe
evaluation of the signals of positive break position switches for safety
functions on sliding, hinged and removable safety guards as well as
emergency stop control devices.
The safety function is defined as the opening of the enabling circuits
13-14, 23-24 and 33-34 when the supply voltage C is disconnected.
The safety-relevant current paths with output contacts 13-14, 23-24 and
33-34 meet the following requirements under observation of a B
10d
value
assessment (also refer to “Requirements of DIN EN ISO 13849-1“):
– Control category 4 - PL e to DIN EN ISO 13849-1
– SIL 3 to DIN EN 61508-2
– SILCL 3 to DIN EN 62061 (meets the requirements
of control category 4 to DIN EN 954-1)
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/EN 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:
Thermoplastic
Material of the contacts:
AgSnO, self-cleaning,
positive drive
Weight:
190 g
Start conditions:
Automatic or start button
Feedback circuit (Y/N):
yes
Drop-out delay in case of emergency stop:
typ. 30 ms
Pull-in delay:
typ. 10 ms
Mechanical data:
Connection type:
Screw connection
Cable section:
min. 0,25 mm² / max. 2,5 mm²
Connecting cable:
rigid or flexible
Tightening torque for the terminals:
0.6 Nm
With removable terminals (Y/N):
Nein
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. 2.5 VA
Rated operating voltage U
e
:
24 VDC –15% / +20%,
residual ripple max. 10%
Max. fuse rating of the operating voltage:
T 1.0 A
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:
1
Cable length:
-
1,500 m mit 1.5 mm²
- 2,500 m mit 2.5 mm²
1-channel
Conduction resistance:
max. 40 Ω