2
Operating instructions
Input expander module
PROTECT-PE
EN
1.6 Warning about misuse
In case of improper use or manipulation of the safety switch-
gear, personal hazards or damages to machinery or plant
components cannot be excluded when safety switchgear is
used. The relevant requirements of the standards ISO 14119
and 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 input expander module PROTECT-PE-02 / …-PE-02-SK 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:
PROTECT-PE-
➀
-
➁
No. Option
Description
➀
02
Connection of NC/NC sensors
11
Connection of NC/NO sensors
11-AN
Connection of NC/NO sensors
outputs with antivalent enabling contacts
➁
with cage clamps
SK
with plug-in screw connection
•
Possibility to connect up to 4 sensors per interface, e.g.
safety magnetic switches of the BNS type, emergency stop
control devices, interlocking devices, etc.
•
Wiring of up to 4 sensors per interface with signals connected
to the potential possible, e.g. CSS type electronic safety
sensors and AOPD’s (only PROTECT-PE-02)
•
Current and voltage limitation of the input circuits
•
Cross-wire monitoring of the input circuits
•
Signalling output for each sensor (monitoring of both circuits
of the sensors)
•
Signalling output summation signal of all sensors and one
summation signal signalling contact (NC + NO)
•
Green LED indications for U
i
and every sensor contact
•
Cascading possible for the connection of up to 80 sensors
This device is designed as input expander module. The
safety function is only realised in conjunction with the
downstream basic device (SRB). To this effect, the device
must be connected in accordance with the wiring example!
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 input expander modules for integration in safety circuits are
designed for fitting in control cabinets. They are used for the evaluation
of the signals of 1...4 sensors and the summarised transmission of the
signals to a downstream safety-monitoring module.
The function is defined as the opening of the enabling contacts 13-14
and 23-24 (in variant AN the opening of 13-14 and the closing of 21-22)
when one or more of the 8 sensor inputs are actuated. The enabling
paths with the outputs contacts 13-14 and 23-24 (21-22) meet the
following requirements under observation of a PFH value assessment
and in conjunction with an SRB (control category 4 / PLe)
(also refer to chapter 2.5 "Safety classification"):
– Control category 3 – PL d to ISO 13849-1 (when multiple
safety guards are opened within one work cycle)
– SIL 2 to IEC 61508
– SILCL 2 to EN 62061
refer to folder:
http://www.schmersal.net/Bilddata/broschue/k-info/i_diap01.pdf
(german)
http://www.schmersal.net/Bilddata/broschue/k-info/i_diap02.pdf
(english)
The above-described requirements cannot be met by the
input expander module solely, but only in combination with a
safety-monitoring module as described in this manual.
To determine the Performance Level (PL) to ISO 13849-1 of the entire
safety function (e.g. sensor, logic, actuator), an assessment of all
relevant components is required.
The entire concept of the control system, in which the safety
component is integrated, must be validated to the relevant
standards.
2.4 Technical data
General data:
Standards:
EN 60204-1, IEC 60947-5-1;
ISO 13849-1, IEC 61508
Climate resistance:
EN 60068-2-78
Mounting:
snaps onto standard
DIN rail to EN 60715
Terminal designations:
IEC 60947-1
Material of the housings:
Plastic, thermoplastic
Material of the contacts:
AgSnO
Weight:
160 g
Start conditions:
Automatic
Feedback circuit (Y/N):
No
Pull-in delay:
≤ 10 ms
Drop-out delay in case of "emergency stop":
≤ 10 ms
Drop-out delay on "supply failure":
≤ 60 ms
Mechanical data:
Connection type:
Cage clamps;
- SK variant:
plug-in screw connection
Cable section:
- Cage clamps:
min. 0.08 mm² / max. 2.5 mm²
- Screw connection:
min. 0.14 mm² / max. 1.5 mm²
Connecting cable:
rigid or flexible
Tightening torque for the terminals:
0.6 Nm
With removable terminals (Y/N):
SK variant: Yes
Mechanical life:
10 million operations
Electrical life:
Derating curve available
on request
Resistance to shock:
30 g / 11 ms
Resistance to vibrations to EN 60068-2-6:
10 ... 55 Hz,
amplitude 0.35 mm