GEM LSC Bedienungsanleitung
GEMÜ LSC
Limit switch box for quarter turn actuators
Operating instructions
EN
further information
webcode: GW-LSC
All rights including copyrights or industrial property rights are expressly reserved.
Keep the document for future reference.
© GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG
16.04.2020
www.gemu-group.com2 / 28GEMÜ LSC
Contents
1 General information .................................................. 4
1.1 Information .......................................................... 4
1.2 Symbols used ...................................................... 4
1.3 Warning notes ..................................................... 4
2 Safety information .................................................... 5
3 Product description ................................................... 6
4 Correct use ............................................................... 7
5 Order data ................................................................. 8
6 Technical data .......................................................... 9
7 Dimensions ............................................................... 11
8 Manufacturer's information ....................................... 12
8.1 Delivery ................................................................ 12
8.2 Packaging ............................................................ 12
8.3 Transport ............................................................. 12
8.4 Storage ................................................................. 12
9 Assembly and installation ......................................... 12
10 Electrical connection ................................................. 14
11 Troubleshooting ........................................................ 16
12 Inspection and maintenance ...................................... 16
13 Disassembly .............................................................. 16
14 Disposal .................................................................... 16
15 Returns ..................................................................... 16
16 Declaration of conformity according to 2006/42/EC
(Machinery Directive) ................................................ 17
17 Declaration of conformity according to 2014/30/EU
(EMC Directive) ......................................................... 18
18 EU Declaration of conformity according to 2014/34/
EU (ATEX) ................................................................. 19
19 Operating instructions for ATEX position indicators .. 20
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1 General information
1 General information
1.1 Information
– The descriptions and instructions apply to the standard versions. For special versions not described in this document the
basic information contained herein applies in combination with any additional special documentation.
– Correct installation, operation, maintenance and repair work ensure faultless operation of the product.
– Should there be any doubts or misunderstandings, the German version is the authoritative document.
– Contact us at the address on the last page for staff training information.
1.2 Symbols used
The following symbols are used in this document:
Symbol Meaning
Tasks to be performed
Response(s) to tasks
– Lists
The following LED symbols are used in the documentation:
Symbol LED conditions
Off
Lit (on)
Flashing
1.3 Warning notes
Wherever possible, warning notes are organised according to the following scheme:
SIGNAL WORD
Type and source of the danger
Possible
symbol for the
specific
danger
Possible consequences of non-observance.
Measures for avoiding danger.
Warning notes are always marked with a signal word and sometimes also with a symbol for the specific danger.
The following signal words and danger levels are used:
DANGER
Imminent danger!
▶Non-observance can cause death or severe injury.
WARNING
Potentially dangerous situation!
▶Non-observance can cause death or severe injury.
CAUTION
Potentially dangerous situation!
▶Non-observance can cause moderate to light injury.
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NOTICE
Potentially dangerous situation!
▶Non-observance can cause damage to property.
The following symbols for the specific dangers can be used within a warning note:
Symbol Meaning
Danger of explosion
2 Safety information
The safety information in this document refers only to an individual product. Potentially dangerous conditions can arise in com-
bination with other plant components, which need to be considered on the basis of a risk analysis. The operator is responsible
for the production of the risk analysis and for compliance with the resulting precautionary measures and regional safety regula-
tions.
The document contains fundamental safety information that must be observed during commissioning, operation and mainten-
ance. Non-compliance with these instructions may cause:
– Personal hazard due to electrical, mechanical and chemical effects.
– Hazard to nearby equipment.
– Failure of important functions.
– Hazard to the environment due to the leakage of dangerous materials.
The safety information does not take into account:
– Unexpected incidents and events, which may occur during installation, operation and maintenance.
– Local safety regulations which must be adhered to by the operator and by any additional installation personnel.
Prior to commissioning:
1. Transport and store the product correctly.
2. Do not paint the bolts and plastic parts of the product.
3. Carry out installation and commissioning using trained personnel.
4. Provide adequate training for installation and operating personnel.
5. Ensure that the contents of the document have been fully understood by the responsible personnel.
6. Define the areas of responsibility.
7. Observe the safety data sheets.
8. Observe the safety regulations for the media used.
During operation:
9. Keep this document available at the place of use.
10. Observe the safety information.
11. Operate the product in accordance with this document.
12. Operate the product in accordance with the specifications.
13. Maintain the product correctly.
14. Do not carry out any maintenance work and repairs not described in this document without consulting the manufacturer
first.
In cases of uncertainty:
15. Consult the nearest GEMÜ sales office.
2 Safety information
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3 Product description
3 Product description
3.1 Construction
1
2
3
Item Name Materials
1 Housing cover PC or Vestamid (ATEX version)
2 Housing base PA 6 or Vestamid (ATEX version)
3 Fastening elements Stainless steel
Mounting kit PA 6 or stainless steel
Seals EPDM, NBR
1
2
3
Item Name Materials
1 Housing cover Aluminium or Vestamid (ATEX version)
2 Housing base Aluminium
3 Fastening elements Stainless steel
Mounting kit Stainless steel
Seals EPDM, NBR
3.2 Description
The GEMÜ LSC limit switch box is suitable for installation on manually and pneumatically operated quarter turn valves. It is also
fitted with an optical position indication for visual confirmation of position.
3.3 Function
Limit switch boxes are used to feed back and verify the position of valves, whether manual or pneumatically actuated quarter
turn actuators. Depending on the version, the limit switch box GEMÜ LSC is equipped with 1 to 4 sensors or microswitches. The
shaft of the limit switch box is positively connected to the shaft of the quarter turn actuator and is turned with the rotary move-
ment of the quarter turn actuator. The trip cams fastened to the shaft then actuate the integrated sensors, which are used for
electronic signal transmission.
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3.4 Product label
Device version Design in accordance with
order data
Item number Traceability number Serial number
Device-specific data
Year of manufacture
The manufacturing month is coded under the traceability number and can be requested from GEMÜ. The product was manufac-
tured in Germany.
4 Correct use
DANGER
Danger of explosion
▶Danger of death or severe injury.
●Only use the product in potentially explosive zones confirmed in the declaration of conformity.
WARNING
Improper use of the product!
▶Risk of severe injury or death.
▶Manufacturer liability and guarantee will be void.
●Only use the product in accordance with the operating conditions specified in the contract documentation and this docu-
ment.
The GEMÜ LSC product is suitable for use in non-explosive as well as explosive atmospheres. The permissible ambient temper-
ature is between -20 °C and +80 °C. When using suitable components, use at an ambient temperature as low as -40 °C can also
be permitted. Various sensors and microswitches can be installed in the various limit switch boxes made of aluminium, polyam-
ide or polycarbonate. The electrical data varies depending on the switch type.
4.1 Product without special function X
The product is not intended for use in potentially explosive areas.
4.2 Product with special function X
The product GEMÜ LSC is intended for use in potentially explosive areas of zones 1 and 2 with gases, mists or vapours and
zones 21 and 22 with combustible dusts in accordance with EU directive 2014/34/EU (ATEX).
The product has the following explosion protection marking:
Gas: II 2G Ex ia IIC / IIB T6 / T4 Gb
Dust: II 2D Ex ia IIIC T80°C / T110°C Db
For the operation of ATEX position indicators, please refer to chapter 18 "Operating instructions for ATEX position indicators".
4 Correct use
5 Order data
The order data provide an overview of standard configurations.
Please check the availability before ordering. Other configurations available on request.
Order codes
1 Type Code
Limit switch box for quarter turn valves LSC
2 Switch Code
Change-over contact, microswitch, 12-250V AC/DC
Cherry, D44X-SPDT
105
Change-over contact, microswitch, 12-250V AC/DC
Cherry, D44X-DPDT
109
Proximity switch, 2-wire, NAMUR, ATEX ia
IFM, NS5002
205
Proximity switch, 2-wire, break contact/make
contact, PNP/NPN, 5–36VDC
IFM, IS5026
207
Proximity switch, 2-wire, NAMUR, ATEX ia
P+F, SJ 3.5 N
208
Proximity switch, 3-wire, make contact, PNP,
10-30VDC
IFM, IS5001
305
Proximity switch, 3-wire, make contact, NPN,
10-36VDC
IFM, IS5003
320
3 Accessories Code
Accessories Z
4 Housing/mounting kit material Code
Plastic housing
Plastic mounting kit
KK
Plastic housing
Stainless steel mounting kit
KE
Aluminium housing
Stainless steel mounting kit
AE
Plastic housing
for manually operated valves
KM
5 Electrical connection Code
M20 cable gland 3101
Solenoid valve connection for 1 coil 31MA
6 Option Code
Without 00
3D display 3D
Large 3D display 4D
7 SIL Code
SIL 1–3 (IEC 61508:2010) S
8 Approval Code
ATEX, IEC X
Order example
Order option Code Description
1 Type LSC Limit switch box for quarter turn valves
2 Switch 105 Change-over contact, microswitch, 12-250V AC/DC
Cherry, D44X-SPDT
3 Accessories Z Accessories
4 Housing/mounting kit material KK Plastic housing
Plastic mounting kit
5 Electrical connection 3101 M20 cable gland
6 Option 00 Without
7 SIL S SIL 1–3 (IEC 61508:2010)
5 Order data
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6 Technical data
6.1 Temperature
Ambient temperature: Housing material
Plastic/aluminium Vestamid
-25 to 80 °C -25 to 70 °C
Storage temperature: Housing material
Plastic/aluminium Vestamid
-25 to 80 °C -25 to 70 °C
6.2 Product conformities
EMC Directive: 2014/30/EU
Explosion protection: ATEX (2014/34/EU)
ATEX marking: Gas: II 2G Ex ia IIC / IIB T6 / T4 Gb
Dust: II 2D Ex ia IIIC T80°C / T110°C Db
IECEx marking: Gas: II 2G Ex ia IIC / IIB T6 / T4 Gb
Dust: II 2D Ex ia IIIC T80°C / T110°C Db
Certificate: IECEx IBE 13.0042
Notified body: IBExU, No. 0637
SIL: SIL 1–3 (IEC 61508:2010)
6.3 Mechanical data
Installation position: Optional
Protection class: IP 67
Switching range: 0° to 90°
6 Technical data
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6 Technical data
6.4 Electrical data
Electrical connection
type:
M20 x 1.5 cable gland for cables with a diameter of 6 to 12 mm (code 3101)
M20 x 1.5 cable gland for cables with a diameter of 6 to 12 mm and solenoid valve connection
(code 31MA)
6.4.1 Microswitch
Switch type: Code 105 Code 109
SPDT DPDT
Supply voltage: Code 105 Code 109
24 V DC, 250 V AC 24 V DC, 250 V AC
Current consumption: Code 105 Code 109
24 V DC: 2.5 A
250 V DC: 10 A
24 V DC: 2.5 A
250 V DC: 10 A
6.4.2 2-wire proximity switch
Switch type: Code 205 Code 207 Code 208
2-wire NAMUR 2-wire, make contact 2-wire NAMUR
Supply voltage: Code 205 Code 207 Code 208
8 V DC 5–36 V DC 8 V DC
Current consumption: Code 205 Code 207 Code 208
1–2.1 mA Max. 200 mA 1–3 mA
6.4.3 3-wire proximity switch
Switch type: Code 305 Code 320
3-wire, make contact, PNP 3-wire, make contact, NPN
Supply voltage: Code 305 Code 320
10 - 30 V DC 10 - 36 V DC
Current consumption: Code 305 Code 320
Max. 200 mA Max. 200 mA
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