Samson Type 5824 Service manual

Electric Actuators

with LON Interface

Type 5824 without 

Type 5825 with fail-safe action

Mountin and

operatin instructions

EB 5824-1 EN

Edition June 2003

Fig. 1 ⋅Type 5824 Actuator

Contents Page

1. Design and principle of operation . . . . . . . . . . . . . . . . . . . . . . 6

2. Connection to the valve . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1 Type 5824 Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1.1 Force-locking connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1.2 Form-fit connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Type 5825 Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2.1 Force-locking connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2.2 Form-fit connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3 Tra el indicator scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3. Installing the control valve . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4. Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1 Connecting the supply oltage . . . . . . . . . . . . . . . . . . . . . . . . 10

4.2 Connection to the LON® bus . . . . . . . . . . . . . . . . . . . . . . . . . 10

5. Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5.1 Identifying the actuator on a LON® . . . . . . . . . . . . . . . . . . . . . 11

5.2 Initializing the actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5.2.1 Form-fit actuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.2.2 Force-locking actuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

. Description of closed loop actuator object . . . . . . . . . . . . . . . . . . 13

6.1. Description of network ariables . . . . . . . . . . . . . . . . . . . . . . . 14

6.1.1 Initialization procedure for force-locking actuators . . . . . . . . . . . . . . . 15

6.1.2 Initialization procedure for form-fit actuators . . . . . . . . . . . . . . . . . 15

6.2 Description of configuration properties . . . . . . . . . . . . . . . . . . . . 16

7. Convenient start-up using a plug-in . . . . . . . . . . . . . . . . . . . . . 17

8. Dimensions in mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Contents

2EB 5824-1 EN

Safety instructions

Assembly, start-up and operation of this de ice may only be performed by

trained and experienced personnel familiar with the product.

According to these mounting and operating instructions, trained personnel

refers to indi iduals who are able to judge the work they are assigned to and

recognize possible hazards due to their specialized training, their knowledge

and experience as well as their knowledge of the applicable standards.

Any hazards which could be caused in the connected al e by the process

medium, operating pressure or mo ing parts are to be pre ented by means

of the appropriate measures.

Proper transportation and storage are assumed.

The actuators ha e been designed for use in electrical power installations.

For wiring and maintenance, you are required to obser e the rele ant safety

regulations.

The actuator must be protected against unintentional reconnection of the

power supply.

Note: The de ice with a CE marking fulfils the requirements of the Directi es

94/9/EC and 89/336/EEC.

The declaration of conformity can be iewed and downloaded on the Internet

at http://www.samson.de.

EB 5824-1 EN 3

Technical data

Actuator Without fail-safe action With fail-safe action

Type 5824-20 5824-30 5825-20 5825-25 5825-30 5825-35

Type of connection to al e Force-lock. Form-fit Force-locking Form-fit

Rated tra el 12 (6) mm

15 mm 12 (6) mm

15 mm

Actuating time for rated tra el 70 s 90 s 70 s 90 s

Actuating time in case of failure  6 s 7 s

Fail-safe action

Actuator stem  Extends Retracts Extends Retracts

Nominal thrust 700 N 

Nominal thrust of safety spring  500 N 280 N

Operating oltage 24 V AC / 50 Hz

Power consumption Approx. 5 VA Approx. 7 VA

Transformer FTT10A Free Topology Transcei er, LTP-10 compatible

Configuration LNS

plug-in for LON binding tools

Handwheel Yes Optional

Permissible ambient temperature:

Permissible storage temperature:

Perm. temp. at connecting stem:

0 to +50 °C

20 to +70 °C

0 to +130 °C

Degree of protection

( ertical installation) IP 54

Noise immunity EN 50082-2

Noise emission EN 50081-1

Weight 0.75 kg 1 kg

Tra el of 6 mm possible by installing a tra el stop according to Fig. 2 in chapter 2.

Manual adjustment using a 4 mm hexagonal wrench after the housing lid has been remo ed;

after the fail-safe action has been acti ated, the al e returns to the fail-safe position.

4EB 5824-1 EN

EB 5824-1 EN 5

1. Design and principle of operation

The electric actuators consist of a re ersible

synchronous motor and a maintenance-free

gear incorporated in a plastic housing.

The actuator is connected to the al e by

means of a coupling nut (4), which pro ides

a force-locking connection, or by means of

a stem connector, which pro ides a form-fit

connection between the actuator stem and

the plug stem.

The rotary motion of the actuator motor is

transmitted to the actuator stem (3), and

hence to the plug stem of the connected

al e ia a crank disc.

The motor is disconnected ia torque-

dependent switches (10) when the al e

has reached either of its final positions or

an o erload occurs.

Type 5824 without fail-safe action

In case of a force-locking connection be-

tween actuator and al e, the spring in-

stalled in the al e causes the plug stem to

follow the mo ement of the actuator stem

when the actuator stem retracts.

The al e can be manually mo ed to the

desired position by means of a handwheel (2).

Type 5825 with fail-safe action

The actuators with fail-safe action largely

comply with the Type 5824 ersion illus-

trated in Fig. 2. In addition, they contain a

spring mechanism (8) and an electromagnet.

If the control oltage applied to the electro-

magnet is interrupted, the actuator mo es to

the fail-safe position.

When de-energized in this way, the magnet

disengages the coupling between gear and

actuator motor. This causes the spring mech-

anism to mo e the actuator stem fully in the

operating direction OUT (or IN). The con-

nected (globe) al e is mo ed to the closed

position.

CAUTION! Do not use the magnet for con-

trol tasks.

The Type 5825 is not equipped with a hand-

wheel (2) on the housing co er.

Manual adjustment ia a hexagonal wrench

is only possible after the front co er has

been remo ed.

Typetest

The electric actuators with fail-safe action

ha e been typetested by the German

Technical Inspectorate TÜV according to

DIN 32730.

The register no. is indicated on the name

plate.

6EB 5824-1 EN

Desi n and principle of operation

CAUTION

Do not open the rear housing

co er!

Fig. 2 ⋅Type 5824/5825 Actuator (force-locking connection to al e)

8 9 1 1.1210 2.1 1.29.1

9.1

9.2

11mm

Tra el stop

Version

obsolete

new

1Housing

1.1 Front housing co er

1.2 Cable entry

2 Handwheel, only on

Type 5824

2.1 Actuating shaft

3Actuator stem

4Coupling nut

8 Spring mechanism, only

on Type 5825

9 Scale for tra el indication

9.1 Dri ing pin

9.2 Stopping pin (11 mm)

10 Torque switch (internal)

Installing the travel stop

1. Remo e the front housing co er (1.1) and then the tra el scale (9)

2. Place a hexagonal wrench into the actuating shaft (2.1) and

turn it to mo e the dri ing pin into the area termed

3. Slide the tra el stop, with the stopping pin of 11 mm (9.2)

suspended downward, o er the dri ing pin (9.1) acc. to Fig. 2.

4. Re-install the tra el scale in the correct position acc. to chapter 2.3.

If tra el limitation is not required, remo e the tra el stop.

EB 5824-1 EN 7

Desi n and principle of operation

2. Connection to the valve

Note regarding the travel stop:

The rated tra el of 12 mm in force-locking

actuators can be reduced to 6 mm by install-

ing a tra el stop. The tra el reduction allows

the force-locking actuators to be used for

smaller al es. A tra el stop is supplied with

the de ice and has to be installed according

to Fig. 2.

2.1 Type 5824 Actuator

2.1.1 Force-locking connection

1. Turn handwheel (2) counterclockwise to

retract the actuator stem.

2. Position the actuator on the al e con-

nection and tighten coupling nut (4)

using a tightening torque of 20 Nm.

2.1.2 Form-fit connection

1. Position actuator on the yoke and

tighten coupling nut (4) using a tightening

torque of 20 Nm.

2. Position actuator with yoke (15) on the

al e and tighten nut (17) using a mini-

mum tightening torque of 150 Nm.

3. Pull plug stem all the way up to the actu-

ator stem or extend actuator stem using

the handwheel (2).

4. Position coupling clamps of the stem

connector (16) included in the acces-

sories and screw tight.

Fig. 3 ⋅Connections between actuator and control al e

2Handwheel

3Actuator stem

4Coupling nut

15 Rod-type yoke

16 Stem connector

17 Nut

Form-fit connection with stem connector

to a al e with rod-type yoke

Force-locking connection with coupling nut, e.g.

to a Type 3222 Val e

8EB 5824-1 EN

Connection to the valve

2.2 Type 5825 Actuator

2.2.1 Force-locking connection

Fail-safe action "Actuator stem extends":

1. Unscrew front co er and place 4 mm

hexagonal wrench into the red actuat-

ing shaft (Fig. 2, 2.1).

2. Use the wrench to retract the actuator

stem. Howe er, turn counterclockwise

only and only to the point where the

internal torque switch (Fig. 2, 10) is

acti ated.

3. Keep the wrench positioned and con-

nect al e and actuator using the

coupling nut (tightening torque 20 Nm).

Reinstall the front co er and carefully fix

it using the screws.

Fail-safe action "Actuator stem retracts":

Position the actuator on the al e connec-

tion and tighten coupling nut using a

tightening torque of 20 Nm.

2.2.2 Form-fit connection

Proceed as described in chapter 2.1.2 for

ersions both with fail-safe action "Actuator

stem retracts" and "Actuator stem extends."

2.3 Travel indicator scale

The tra el indicator scale has two opposing

scales to satisfy different al e ersions.

Upon deli ery (default), the scale is placed

so that the dri ing pin is at position 0. This

position is used for globe al es and three-

way di erting al es.

For three-way mixing al es, remo e the

scale, turn it by roughly 180° and reposi-

tion it so that the appropriate bore (12 or

15 according to the rated tra el) is placed

o er the dri ing pin.

3. Installing the control valve

The control al e must be installed in the

pipeline with the actuator on top so as to

ensure the stated degree of protection.

Fig. 4 ⋅Mounting of tra el indicator scale

Bores for pin for three-way

mixing al es

Pin in position 0:

scale positioned for globe al es

and three-way di erting al es (default)

EB 5824-1 EN 9

Installin the control valve

4. Electrical connections

When installing electric lines, you

are required to obser e the regula-

tions go erning electrical power

plant installation according to DIN

VDE 0100 as well as the regulations

of your local power supply company.

Use a suitable power supply which

guarantees that no dangerous olt-

ages reach the de ice in standard

operation or in case of a fault in the

system or any other system parts.

We recommend installing a discon-

nector (e.g. automatic circuit

breaker). This allows the actuator to

be connected separately from the

power supply network. Once the in-

stallation has been completed, the

actuator can be started up ia

switchbox or similar equipment.

Make sure the power cannot be

switched on unintentionally.

4.1 Connecting the supply voltage

The electrical connection must be estab-

lished ia the cable entries (see Fig. 2, 1.2)

in such a manner that the actuator is sup-

plied with 24 VAC / 50 Hz ia terminals L1

and N1.

4.2 Connection to the LON® bus

The LON® Free Topology Transcei er

(FTT10A) pro ides a polarity insensiti e con-

nection to the bus.

The LON® bus cables must be connected to

the two actuator terminals marked "LON"

on the board (see Fig. 5). Note that specific

LON® bus cables are a ailable to meet dif-

ferent requirements.

NOTE:

The "LONWORKS FTT-10A Transcei er

Users Guide" lists a number of cables quali-

fied by Echelon® to work with the TP/FT-10

network. The guide also specifies the physi-

cal properties of the cables.

Fig. 5 ⋅Electrical connection

24V~ 24V~ LON-BUS

FTT 10A

L2 N2 L1 N1

LON

Supply

Magnet

for Type 5825

10 EB 5824-1 EN

Electrical connections

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