schmersal EX-RDRZ45 RT User manual

EX-RDRZ45 RT
Operating instructions
Emergency stop command device
EN 1
1. About this document
1.1 Function
This operating instructions manual provides all the information you
need for the mounting, set-up and commissioning to ensure the safe
operation and disassembly of the safety switchgear. The operating
instructions must be available in a legible condition and a complete
version in the vicinity of the device.
1.2 Target group: authorised qualified personnel
All operations described in this operating instructions manual must
be carried out by trained specialist personnel, authorised by the plant
operator only.
Please make sure that you have read and understood these operating
instructions and that you know all applicable legislations regarding
occupational safety and accident prevention prior to installation and
putting the component into operation.
The machine builder must carefully select the harmonised standards
to be complied with as well as other technical specifications for the
selection, mounting and integration of the components.
1.3 Explanation of the symbols used
Information, hint, note:
This symbol is used for identifying useful additional information.
Caution: Failure to comply with this warning notice could
lead to failures or malfunctions.
Warning: Failure to comply with this warning notice could
lead to physical injury and/or damage to the machine.
1.4 Appropriate use
The products described in these operating instructions are developed to
execute safety-related functions as part of an entire plant or machine. It
is the responsibility of the manufacturer of a machine or plant to ensure
the correct functionality of the entire machine or plant.
The safety switchgear must be exclusively used in accordance with
the versions listed below or for the applications authorised by the
manufacturer. Detailed information regarding the range of applications
can be found in the chapter "Product description".
1.5 General safety instructions
The user must observe the safety instructions in this operating
instructions manual, the country-specific installation standards as well
as all prevailing safety regulations and accident prevention rules.
Further technical information can be found in the Schmersal
catalogues or in the online catalogue on the Internet:
www.schmersal.net.
The information contained in this operating instructions manual is
provided without liability and is subject to technical modifications.
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 when safety
switchgear is used. The relevant requirements of the
standard EN ISO 13850 must be observed.
Content
1 About this document
1.1 Function ..............................................1
1.2 Target group: authorised qualied personnel..................1
1.3 Explanation of the symbols used ...........................1
1.4 Appropriate use ........................................1
1.5 General safety instructions ...............................1
1.6 Warning about misuse ...................................1
1.7 Exclusion of liability .....................................2
2 Product description
2.1 Ordering code .........................................2
2.2 Special versions........................................2
2.3 Destination and use .....................................2
2.4 Technical data .........................................2
2.5 Safety classication .....................................3
3 Mounting
3.1 General mounting instructions .............................3
3.2 Dimensions ...........................................4
4 Electrical connection
4.1 General informati on for electrical connection .................4
4.2 Contact variants........................................4
5 Set-up and maintenance
5.1 Functional testing.......................................4
5.2 Maintenance ..........................................4
6 Disassembly and disposal
6.1 Disassembly...........................................4
6.2 Disposal ..............................................4
7 EU Declaration of conformity
x.000 / 04.2017 / v.A. - 101210867-EN / D / 2017-06-07 / AE-Nr. 5193
EN Operating instructions. . . . . . . . . . . . .pages 1 to 6
Original

2
Operating instructions
Emergency stop command device EX-RDRZ45 RT
EN
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.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
EX-RD
➀ ➁ ➂ ➃
No. Option Description
➀
R Latching
➁
Z Release by pulling only
➂
45 Head diameter 45 mm
➃
RT Red colour
Only if the information described in this operating instructions
manual are realised correctly, the safety function and
therefore the compliance with the Machinery Directive and
the Explosion Protection 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 EX-RDRZ45 RT series emergency stop command devices are
designed for use in emergency stop circuits to EN 13850.
Gas atmospheres
Please use the control devices and indicator lights in conjunction with
equipment of the appropriate "intrinsic safe" ignition protection type,
which is authorised for the corresponding field of application:
Zone 1: intrinsically safe current circuits of category ia or ib
(EN 60079-11)
Zone 2: intrinsically safe current circuits of category ia, ib or ic
(EN 60079-11)
Dust atmospheres
For Zone 21 and 22, the installation of the cables or wires is realised
with the appropriate ignition protection type (e.g. increased safety, EN
60079-7). No intrinsically safe current circuits are required.
Installation and maintenance requirements to the standard
series EN 60079 must be met.
Especially the capacitive and inductive parts of the intrinsically safe
current circuit must be observed. For non-linear current circuits,
Appendix A to EN 60079-11 (assessment of intrinsically safe current
circuits) must be included in the overall assessment.
For intrinsically safe current circuits with protection level ib, a safety
coefficient of 1.5 must be includet in the calculations, in accordance
with EN 60079-11 paragraph 5.3.
The user must evaluate and design the safety chain in
accordance with the relevant standards and the required
safety level.
Conditions for safe operation
The control devices are suitable for mounting in the enclosures of
the type Ex-EBG... (brand: Schmersal) or another enclosure or
operating panel, which is suitable for the zone (material: stainless
steel or metal with painted surface). These enclosures must meet
the requirements of IP65 or higher to IEC 60529 as well as the test
criterions to IEC 60079-0 paragraph 26.4.
The presence of small dust particles inside of the dust-proof IP65
enclosure must be excluded.
The specifications in the operating instructions manual or in the
technical data of the EC test certificate regarding the maximum
impact energy must be observed. Due to the specific impact energy,
the components must be fitted with a protection against mechanical
stresses.
2.4 Technical data
Standards: IEC 60947-5-1, IEC 60947-5-5, IEC 60947-1,
EN 60079-0, EN 60079-11, EN 60079-14,
EN 60079-25, EN 60079-31
Operating element
EX-relevant Data:
EC-prototype test certificate: TÜV 08 ATEX 7685 U
-Designation
For EX-R command and signalling devices: LII 2G Ex ib IIC Gb
L II 2D Ex tb IIIC Db
EC-prototype test certificate: TÜV 08 ATEX 7630 X
- Designation
For EX-R command and signalling devices
in enclosure EX-EBG: L II 2G Ex ib IIC T4 Gb
L II 2D Ex tb IIIC T110°C Db
Ambient temperature Tamb:–20 … +55°C
Note external heat and/or cold source.
Protection class to IEC 60529: IP65
Evidenced impact energy
(according to EN 60079-0): 4 J
General technical data:
Design: round
Installation diameter: 22,3 mm
Grid dimensions: 50 × 60 mm
Front plate thickness: 1 … 6 mm
With identification label: 1 ... 5 mm
Mounting position: random
Switching frequency: 600 s/h
Actuating force: 2 N
Mechanical life (operations): 1 × 105
Materials: Front-ring brass, chromium-plated
Emergency stop label (yellow): PVC film
Device head: brass coated
Fixing: With mounting flange,
Tightening torque: 2 Nm
Shock resistance to IEC 60068-2-27: < 50 g
Resistance to vibrations to EN 60068-2-6: 5 g
Contact elements,
EX-relevant data:
Ambient temperature Tamb:–20 … +55°C
Mounting position: random
Number of: max. 2 (Pos. 2, 3)

3
EX-RDRZ45 RT
Operating instructions
Emergency stop command device
EN
Dust Ex-zones:
Voltage U: 250 V
Current I: 5 A
Power P: max. 1,500 W
Intrinsically safe
to EN 60079-11:
Ui: 250 V
Ii:Ex ib: 3.3 A, Ex ic: 5 A
(internal current limitation 30 mA)
Pi:max. 1,500 W
Ci:type. 0
Li:type. 0
Overvoltage category: IEC 60664-1, Cat. III
Resistance to pressure shocks
to EN 60079-11 paragraph 10.3: safe separation against earth;
Connection of the cables in case of multiple or
different Ex-i current circuits: use conductor ferrules with protective
collar. Bare wires must not protrude beyond the clamping disc.
Contact/light element,
General technical data:
Switching points: NC contact: approx. 1 mm
NO contact: approx. 2.5 mm
Contact reliability: 5 VDC / 1 mA
Proof of positive opening: 2,5 kV impulse voltage
Positive opening path: approx. 2 mm after achieving
opening point
Actuating force at stroke end: typ. 4.5 N
Connection: screw terminals
Cable section: single-strand wire: 2 × (0.5 … 2.5 mm²)
multi-strand wire with conductor ferrules with
protective collar: 2 × (0.5 … 1.5 mm²)
Tightening torque for the connecting screws: max. 1 Nm
2.5 Safety classification
Standards: ISO 13849-1
B10D (NC contact): 100,000
Service life: 20 years
MT
TF
Bdxx
hs/h3600
D
10Dopop
op
n
0,1 x n
op
t
cycle
(Determined values can vary depending on the application-specific
parameters hop, dop and tcycle as well as the load.)
If multiple safety components are wired in series, the Performance
Level to ISO 13849-1 will be reduced due to the restricted error
detection under certain circumstances.
3. Mounting
3.1 General mounting instructions
1. Assembly of the head of the emergency stop device and mounting
flange by turning the RMW mounting tool to the right (Fig. 1):
a) Actuating head
b) Mounting flange
2. Opening the contact fitting (see Fig. 2)
3. Preliminary fitting of the contact elements onto the contact carrier
(see Fig. 3): only the outward positions may be equipped*:
a) contact carrier
Prior to the assembly of the contact elements onto the contact
carrier, the two plunger segments must be fitted onto the central
contact element through simple insertion in the trapezoid groovings
to the left and the right.
The contact elements must only be fitted in the outmost
position of the contact carrier, so that in case of voltages
> 150 V the necessary air clearances and creepage
distances are ensured.
2 Nm
b)
a)
213
➀
➁
Fig. 1 Fig. 2 Fig. 3
4. Closing and pressing down the contact fitting (see Fig. 4): the contact
fittings to the left and the right are folded up 90° and then pressed
down until they engage. In this way, the contact elements are
additionally mechanically secured to the contact carrier.
5. Assembly of the pre-assembled contact carrier onto the mounting
flange (Fig. 5): engage the contact carrier on one side of the
mounting flange. Then repeat this process on the opposite side.
6. After the contact carrier is snapped onto the mounting flange,
the contact lugs are automatically additionally fixed (Fig. 6). This
precludes incorrect assembly. The correct assembly should be
checked once more.
213
➀
➁
Fig. 4 Fig. 5 Fig. 6
Only fit onto clean, grease-free surface!
After assembly of the contact elements, both contact lugs
(to the left and the right of the contact elements) must be
folded up 90° and then pressed down until they engage.
To ensure a smooth disassembly of the contact carrier,
we recommend using a slot screwdriver of 5.5 mm wide.

4
Operating instructions
Emergency stop command device EX-RDRZ45 RT
EN
3.2 Dimensions
Ø 45
27.5
Ø 22
Ø 38
9
43
19,5
21,5
6
44
Fig. 7: Emergency stop
command device
Fig. 8: Contact element EX-RF
30
49
Fig. 9: Dimensions EX-RLM
4. Electrical connection
4.1 General information for electrical connection
The electrical connection may only be carried out by autho-
rised personnel in a de-energised condition.
After wiring, the contact elements must be cleaned (i.e. remove excess
cables etc.).
The fixing screws of the contact element must be tightened with 1 Nm
tightening torque.
4.2 Contact variants
EX-RF 03 1 NO element
EX-RF 10: 1 NC element
5. Set-up and maintenance
5.1 Functional testing
The safety function of the safety components must be tested.
The following conditions must be checked and met:
1. Correct fixing of the fitted component
2. Check the integrity of the cable entry and connections
3. Check the emergency stop command device for damage.
5.2 Maintenance
A regular visual inspection and functional test, including the following
steps, is recommended:
1. Check the correct fixing of the emergency stop command device
and the contact element
2. Remove particles of dust and soiling
3. Check cable entry and connections
Damaged or defective components must be replaced.
6. Disassembly and disposal
6.1 Disassembly
1. Disassembly of the contact carrier from the mounting flange (see Fig. 10):
Insert the screwdriver in the latch of the mounting flange. Slightly move
the screwdriver in the direction of the contact element to press the
latch outwards. In this way, the contact carrier is released from the
mounting flange. Then repeat this process on the opposite side.
2. Contact carrier disassembled and opening the contact lugs
(see Fig. 11): lift both contact lugs to release them from the catch
mechanism and then fold them 90° up. After that, the contact or light
elements can be disassembled.
3. Disassembling the contact elements from the contact carrier
(Fig. 12): insert the screwdriver in the latch of the contact element.
Slightly move the screwdriver in the directiof the contact element to
press the latch outwards. The contact element is released from the
contact carrier.
213
Fig. 9 Fig. 10 Fig. 11
6.2 Disposal
The switch must be disposed of in an appropriate manner in
accordance with the national prescriptions and legislations.

5
EN
EX-RDRZ45RT-E-EN
EX-RDRZ45 RT
Operating instructions
Emergency stop command device
7. EU Declaration of conformity
Name of the component: EX-RDRZ45 RT
-
L II 2G Ex ib IIC Gb
-
L II 2D Ex tb IIIC Db
-
L II 2G Ex ib IIC T4 Gb
-
L II 2D Ex tb IIIC T110°C Db
Type: See ordering code
Description of the component: Emergency stop pushbutton
Relevant Directives: Machinery Directive
Explosion Protection Directive (ATEX)
RoHS-Directive
2006/42/EC
2014/34/EU
2011/65/EU
Applied standards: EN 60079-0:2012 + A11:2013,
EN 60079-11:2012,
EN 60079-31:2014
Notied body, which approved the full
quality assurance system, referred to in
Appendix IV, 2014/34/EU:
TÜV Rheinland Industrie Service GmbH
Am Grauen Stein, 51105 Köln
ID n°: 0035
Notied Body for the
certication:
TÜV Rheinland Industrie Service GmbH
Am Grauen Stein, 51105 Köln
ID n°: 0035
EC-prototype test certicate: TÜV 08 ATEX 7630 X
TÜV 08 ATEX 7685 U
The currently valid declaration of conformity can be
downloaded from the internet at www.schmersal.net.
Place and date of issue: Wuppertal, June 7, 2017
Authorised signature
Philip Schmersal
Managing Director
EU Declaration of conformity
Original K.A. Schmersal GmbH & Co. KG
Möddinghofe 30
42279 Wuppertal
Germany
Internet: www.schmersal.com
We hereby certify that the hereafter described components both in their basic design and construction conform
to the applicable European Directives.

K.A. Schmersal GmbH & Co. KG
Möddinghofe 30, D - 42279 Wuppertal
Postfach 24 02 63, D - 42232 Wuppertal
Phone: +49 - (0)2 02 - 64 74 - 0
Telefax: +49 - (0)2 02 - 64 74 - 1 00
E-Mail: [email protected]
Internet: http://www.schmersal.com