Watts bar switchcontrol SC-M2 Instructions d'installation
switchcontrol ®
bar-gmbh.de
Operating, mounting and adjusting instruction
Original operating manual
2
Safety Regulations:
Read these instructions before commis-
sioning the equipment!
The bar switchcontrol is designed for ope-
ration as an optical display for intermediary
and end positions from position indicators,
on industrial fittings. Just before reaching
the end position, an electrical signal is ge-
nerated, e.g. for feedback to the process
control point.
All of these units are to be installed only
by suitably qualified skilled personnel. The
hereby quoted regulations are to be strictly
adhered to.
Incorrect handling or non-adherence to the
designated usage can lead to the loss of
function of the unit described in this docu-
ment!
• Work on the bar switchcontrol must be
always s carried out without connection
to the voltage supply and under accep-
tance and adherence to the current na-
tional and international Safety Regulati-
ons. Also disconnect the compressed air
supply to the actuator!
• Before installing, i.e. commissioning the
unit described in this document, check
the technical parameters, especially the
electrical connection values of the ap-
plied sensors.
• Take note of the diagram on the inside
of the housing.
• A change in the actuator pivoting angle
requires renewed adjustment of the unit
described in this documentation.
• Do not mount the unit described in this
document with the cable glands pointing
upwards.
• The unit may only be operated when it is
correctly closed according to this docu-
mentation.
• In Ex-areas, adjustment work on the ope-
ned unities only to be carried out under
the following conditions:
•You fulfil the authorised regulations
(informing the fire brigade etc.)
•You follow exactly the local necessa-
ry protective measures! (Continuous
measurement of combustible at-
mosphere etc.)
•You avoid electrostatic charges,
even the metallic housing on the
sensors.
• When laying cables in Ex-areas, make
sure you adhere to DIN EN 60079-14.
• In explosion-protected areas, it may be
necessary to provide direct sunlight
protection, to shield the surface of the
3
Safety Regulations: Table of Contents:
unit from the overheating effects of too
much direct sunlight. In explosion- pro-
tected areas, only intrinsically safe so-
lenoid valves may be connected in the
bar-switchcontrol.
• Do not use thinners or abrasive medi-
ums to clean the unit, the plastic win-
dow may lose its clarity.
• The bar-switchcontrol is not designed
to be used for the transport, leverage
in any way of actuators or automatic
valves. It is also not a step or climbing
help for fitters. The fixings can break
under these loads.
bar GmbH
Auf der Hohl 1
D - 53547 Dattenberg / Germany
Tel.: +49 (0)2644-9607-0
Fax: +49 (0)2644-960735
E-Mail: bar-info@wattswater.com
Safety Regulations 2
Technical Data – general 4
Technical Data –
bar-switchcontrol types 5
Declaration of Conformity 6
ATEX-Declaration of Conformity 7
Mounting
• mounting feet 8
• actuator 9
Connecting
• Electrical connection 10
• Connection of round initiator 10
• Connection of micro switch 11
• Connection of slot initiator 11
Setting
• switching cams 13
• round initiators 14
• position indicator 14
• micro-switches 15
• slot initiators 15
Accessories and spare parts 16
Accessories and spare parts
(Mounting instructions) 17
4
Technical Data – General Data:
Fixing dimensions: acc. to VDI/VDE 3845 for flange plates 30 x 80 mm
and 30 x 130 mm
Materials:
Housing:
Viewing glass:
Screws:
Blanking plugs and
cable glands:
Plate:
Aluminium, resin-coated
Polycarbonat (PC), with ATEX model anti-static coated
stainless steel A2
Polyamid (PA)
ABS+PC, ATEX model excl. plate
Protection type: IP 67
Temperature range: -20°C to + 70°C;
low temperature: -40°C to +70°C on request
Cable glands: M20x1,5; clamping range 7–13 mm
Cable: Ø7–13 mm, max. 2,5 mm2,
screw terminal with protection
Weight: 0,8 kg
Display and
switching range: 0 to 180° pivoting angle
5
Technical Data – bar-switchcontrol types:
Micro-switch: Type SC-M2
Voltage range:
Constant current:
Switching function:
to 250 VAC
5A
changer, contacts precious metal-coated
Inductive round sensor: Type SC-D2 (Signal „OPEN + CLOSED“); Type SC-DA (Signal
„OPEN“); Type SC-DZ (Signal „CLOSED“)
Voltage range:
Operating current IL:
Idling current Io:
Switching function:
10–30 VDC
0–100 mA
< 15 mA
PNP closer, with yellow switch position display (LED)
Inductive round
sensor NAMUR:
Type SC-N2 (Signal „OPEN + CLOSED“)
Type SC-NA (Signal „OPEN“)
Type SC-NZ (Signal „CLOSED“)
Rated voltage Uo:
Current input:
Switching function:
Switch type:
ATEX-Identification:
8 VDC
damped < 1 mA; undamped > 3 mA
NAMUR opener, yellow switch position display (LED)
Pepperl + Fuchs NCN4-12GM35-N0
EC-type examination certificate PTB 00 ATEX 2048 X and
ZELM 03 ATEX 0128 X (You find the ATEX certificate also on
the Internet: www.pepperl-fuchs.com)
II 2GD EEx ia IIB T6 EEx iaD 21
Inductive slot sensor NAMUR: Type SC-NS2 (Signal „OPEN + CLOSED“); Type SC-NSA
(Signal „OPEN“); Type SC-NSZ (Signal „CLOSED“)
Display and switching range: 0 to 180° pivoting angle
Rated voltage Uo:
Current input:
Switching function:
Switch type:
ATEX-Identification:
8 VDC
damped < 1 mA; undamped > 3 mA
NAMUR opener, yellow switch position display (LED)
Pepperl + Fuchs SC3,5-N0-yellow
EC-type examination certificate PTB 00 ATEX 2219 X and
ZELM 03 ATEX 0128 X (You find the ATEX certificate also on
the Internet: www.pepperl-fuchs.com)
II 2GD EEx ia IIB T6 EEx iaD 21
6
Declaration of Conformity:
Name and address of the manufacturer: bar pneumatische Steuerungssysteme GmbH
Auf der Hohl 1, 53547 Dattenberg/Germany
Herewith we declare, that product described below
Product denomination: Limit switch box for pneumatic
double piston actuator
Model/type: bar-switchcontrol type SC-M2 and SC-D2
was manufactured according to the following standards:
Where appropriate Harmonised Standards used:
Low-voltage switchgear and controlgear EN 60947-5-2
Part 5-2: Control circuit devices and switching elements
Low-voltage switchgear and controlgear EN 60947-5-6
Part 5-6: Control circuit devices and switching elements, DC interface for proximity sensors
The products according to the following directives:
2006/95/EC Low voltage directive
2004/108/EC EMC directive
2006/95/EC CE marking directive
Please take care about the technical data and the relevant warning and safety notices.
The person authorised to compile the technical documentation
(must be established within EU):
Dattenberg, 08.04.2010 Scholl, Klaus, Manager R&D
Place, Date Surname, first name and function of signatory Signature
7
ATEX-Declaration of Conformity:
Name and address of the manufacturer: bar pneumatische Steuerungssysteme GmbH
Auf der Hohl 1, 53547 Dattenberg/Germany
Herewith we declare, that product described below
Product denomination: Limit switch box for pneumatic double piston actuator
Model/type: bar-switchcontrol type SC-N2, SC-NS2, SCE-N2
in association with used switches: SC 3,5-N0; SJ 3,5-SN; NCN 4-12GK35-N0;
NCN 4-12GM35-N0; NJ 2-12GK-N; NJ 4-12GK-SN;
NS 5002
was manufactured according to the following standards:
Where appropriate Harmonised Standards used:
Low-voltage switchgear and controlgear EN 60947-5-2;
Part 5-2: Control circuit devices and switching elements
Low-voltage switchgear and controlgear EN 60947-5-6;
Part 5-6: Control circuit devices and switching elements
Explosive atmospheres EN 60079-0; Part 0: Equipment – General requirements
Electrical apparatus for explosive gas atmospheres EN 60079-25;
Part 25: Intrinsically safe systems
The products according to the following directives:
94/9/EC ATEX-directive
2006/95/EC Low voltage directive
2004/108/EC EMC directive
2006/95/EC CE-marking directive
Designation: II 2 G Ex ia IIB T6
II 2 D Ex ia D21 T 120 °C
Please take care about the technical data and the relevant warning and safety notices.
The person authorised to compile the technical documentation
(must be established within EU):
Dattenberg, 04.10.2010 Scholl, Klaus, Manager R&D
Place, Date Surname, first name and function of signator y Signature
8
Mounting the bar-switchcontrol:
Adjusting the mounting feet
The unit described in this documentation
is equipped with mounting feet, which can
be mounted onto all actuators fitted with
an interface acc. to VDI/VDE 3845.
The dimensional width is achieved by ha-
ving the feet mounted either inwards or
outwards (Fig. 1 and 2), and the height
is adjusted by sliding the mounting feet
along the guides on the side of the housing
(Fig. 3).
Fig. 1: Feet mounted inwards:
Fixing dimensions 80 x 30 mm
Fig. 3: Height adjustment for different
pinion lengths 20, 30, 40 and 50 mm
Fig. 2: Feet mounted outwards:
Fixing dimensions 130 x 30 mm
9
Mounting on the actuator:
When mounting the limit switch box onto the actuator interface, it is impe-
rative to take note of the rotational direction of the actuator pinion, becau-
se incorrect mounting of round initiators can lead to damage to the initiator
and drive. Take care for stress-free mounting of the bar-switchcontrol with
the actuator!
Attention!
1a. For the mounting on actuators which
correspond with the provided adjusted
mounting measures unscrew the back-
sided screws, set the bar-switchcon-
trol onto the actuator and tighten the
screws again.
1b. For mounting onto actuators, whose
connection dimensions differ from tho-
se of the mounting feet dimensions
provided, then follow the instructions
below:
• Loosen and remove the two fixing
screws.
• Slide the mounting feet along the
guide to reach the desired height.
• If distance between the mounting
feet is not correct, then change over
to reach the desired width.
• Take fixing screws and washers and
fix in position.
2. Place the bar-switchcontrol onto the
actuator interface and fix in position
using the fixing screw set provided.
10
The supply cable must be fixed in positi-
on and protected against rotation! Cable
and supply lines must comply with DIN EN
60079-14 in Ex-areas! The circuit diagram
on the inside of the housing gives the con-
nection system. Take care to observe the
connection data for the switch and/or in-
itiator.
Connecting:
Electrical connection for the bar-switchcontrol
Connecting round initiators (Type SC-D and SC-N)
Connection diagram for round initiators (Type SC-N and SC-D)
onto terminal 3 and 4 (Type SC-
N), and/or 4,5 and 6 (Type SC-D)
onto terminal 1 and 2 (Type SC-
N), and/or 1,2 and 3 (Type SC-D)
inductive switch, NAMUR round initiator:
(Type SC-N)
inductive switch, 3-core:
(Type SC-D)
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