Gemu 1236 Manuale utente
GEMÜ 1236
24V, 3S, 4S
Electrical position indicator
Operating instructions
EN
further information
webcode: GW-1236
All rights including copyrights or industrial property rights are expressly reserved.
Keep the document for future reference.
© GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG
11.06.2019
www.gemu-group.com2 / 24GEMÜ 1236
24V, 3S, 4S
Contents
1 General information ................................................... 4
1.1 Information ......................................................... 4
1.2 Symbols used ..................................................... 4
1.3 Definition of terms ............................................. 4
1.4 Warning notes .................................................... 4
2 Safety information .................................................... 6
3 Product description ................................................... 7
4 Correct use ................................................................ 9
5 Order data ................................................................. 10
6 Technical data ........................................................... 11
7 Dimensions ............................................................... 12
8 Manufacturer's information ....................................... 13
8.1 Delivery ............................................................... 13
8.2 Packaging ........................................................... 13
8.3 Transport ............................................................ 13
8.4 Storage ............................................................... 13
9 Assembly and installation ......................................... 13
10 Electrical connection ................................................. 16
11 Programming the end positions ................................. 17
12 Error clearance .......................................................... 18
13 Inspection and maintenance ...................................... 20
14 Disassembly ............................................................. 20
15 Disposal .................................................................... 20
16 Returns ..................................................................... 20
17 Declaration of conformity according to 2014/30/EU
(EMC Directive) ......................................................... 21
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24V, 3S, 4S
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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 Definition of terms
Speed-APfunction
Speed Assembly and Programming, a particularly user-friendly commissioning function for fast mounting, automated setting
and initialisation of GEMÜ products. Dependent on type, activation uses an external impulse signal or existing precautions on
the device (magnetic or housing switch). Changeover to normal operating mode takes place automatically after successful
completion.
1.4 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.
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24V, 3S, 4S
CAUTION
Potentially dangerous situation!
▶Non-observance can cause moderate to light injury.
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
1 General information
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2 Safety information
2 Safety information
The safety information in this document refers only to an individual product. Potentially dangerous conditions can arise in
combination with other plant components, which need to be considered on the basis of a risk analysis. The operator is re-
sponsible for the production of the risk analysis and for compliance with the resulting precautionary measures and regional
safety regulations.
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.
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3 Product description
3.1 Construction
1
2
4
3
5
Item Name Materials
1 Housing cover PPR
2 Housing base Stainless steel
3 Electrical connection PVDF
4 Adapter piece PVDF
5 Mounting kit, valve specific Stainless steel
Seals EPDM, PUR
3 Product description
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3 Product description
3.2 LED displays
3.2.1 Status LEDs
As well as the electrical position feedback and error analysis a visual signal is emitted by LEDs that can be seen from above.
CLOSED
ERROR
OPEN
PWR/COM
FAU LT
LED Colour Function
Standard 1) Inversed 2)
FAULT red red Communication error
PWR/COM green green Power / communication
CLOSED green orange Process valve in CLOSED
position
ERROR red red Error
OPEN orange green Process valve in OPEN
position
High visibility LED green orange Process valve in CLOSED
position
orange green Process valve in OPEN
position
green / orange green / orange Programming mode
1) Device version
Code 3E: Open/Closed position feedback,programming input,high visibility optical position indicator,IO-Link communication
Code 3S: Open/Closed position feedback,high visibility optical position indicator
2) Device version
Code 4E: Open/Closed position feedback inversed,programming input,high visibility optical position indicator,IO-Link communication
Code 4S: Open/Closed position feedback inversed,high visibility optical position indicator
For order codes see chapter "Order data"
3.2.2 LED conditions
Function CLOSED ERROR OPEN High visibility LED
Valve in OPEN position
Valve in CLOSED position
Programming mode
OPEN / CLOSED flash alternately flashes alternately
LED conditions
lit (on) ~ irrelevant flashes off
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3.3 Description
The GEMÜ 1236 electrical position indicator is suitable for mounting to pneumatically operated linear actuators. Secure con-
nection to valve spindle means reliable feedback signal. Intelligent microprocessor controlled functions make commissioning
and support during operation easier. The current position of the valve is displayed via high visibility LEDs and fed back via
electrical signals. The GEMÜ 1236 has been specially designed for valves with a stroke of 2.0 to 74.4 mm.
3.4 Function
The GEMÜ 1236 electrical position indicator shows the position of the valve. When the valve is opened, the spindle in the elec-
trical position indicator moves upwards and indicates that the valve is OPEN using the high visibility LEDs and communication
interface. When the valve is closed, the spring in the mounting kit pushes the spindle in the electrical position indicator down-
wards and indicates that the valve is CLOSED using the high visibility LEDs and communication interface.
4 Correct use
DANGER
Danger of explosion
▶Risk of death or severe injury.
●Do not use the product in potentially explosive zones.
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 product is not intended for use in potentially explosive areas.
The product is designed for fitting to a GEMÜ valve in order to detect the position of linear actuators visually and electrically.
The product has a microprocessor controlled intelligent position sensor as well as an analogue travel sensor system (poten-
tiometer) which is positively connected with the actuator spindle by means of a mounting kit (spring, operating bush). The
valve end positions and the integrated travel sensor can be controlled via the electrical connections.
●Use the product in accordance with the technical data.
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.
Note: A valve specific mounting kit is required for assembly. For designing the mounting kit, the valve type, nominal size, con-
trol function and actuator size must be stated.
Order codes
1 Type Code
Electrical position indicator 1236
2 Fieldbus Code
Without 000
3 Accessory Code
Accessory Z
4 Device version Code
Open/Closed position feedback,
programming input,
high visibility optical position indicator,
IO-Link communication
3E
Open/Closed position feedback,
high visibility optical position indicator
3S
Open/Closed position feedback inversed,
programming input,
high visibility optical position indicator,
IO-Link communication
4E
4 Device version Code
Open/Closed position feedback inversed,
high visibility optical position indicator
4S
5 Electrical connection Code
M12 plug, 5-pin M125
6 Travel sensor version Code
Potentiometer, 30 mm length 030
Potentiometer, 50 mm length 050
Potentiometer, 75 mm length 075
7 Housing material Code
Base 1.4301, PP cover,
M16 thread, 1.4305
G70
Base 1.4301, PP cover,
M16 thread, 1.4305,
(for GEMÜ 650, actuator size 1, 2, 3
control function 1)
G73
Order example
Order option Code Description
1 Type 1236 Electrical position indicator
2 Fieldbus 000 Without
3 Accessory Z Accessory
4 Device version 3E Open/Closed position feedback,
programming input,
high visibility optical position indicator,
IO-Link communication
5 Electrical connection M125 M12 plug, 5-pin
6 Travel sensor version 030 Potentiometer, 30 mm length
7 Housing material G70 Base 1.4301, PP cover,
M16 thread, 1.4305
5 Order data
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