Samson SAM -01 Service manual

Electric Actuators
Linear Actuator
Type SAM -01 to SAM -52
Mounting and
Operating Instructions
EB 8 0 EN
Edition April 1999
Fig. 1 ⋅ Type SAM -20 Linear Actuator, rated travel 30 mm, nominal thru t 6 kN

Contents
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Application 5
1.2 Ver ion 5
1.3 Function 5
1.3.1 Electrical equipment 6
2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 In tallation requirement 12
4.2 Mounting po ition 12
4.3 Attaching the actuator to a control valve 12
4.4 Manual operation 14
5 lectrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 Removing the cover 16
5.2 E tabli hing the connection 17
5.3 Start-up 17
6 Connection examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Connection example 1(three-way valve) 19
Connection example 2 (globe valve) 20
7 Adjustment and calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.1 Travel 21
7.2 Potentiometer 21
7.3 Electronic po ition tran mitter 22
7.4 Limit witch WE-S3 24
7.5 Signal witch WE-S4 to WE-S6 24
8 Additional electrical equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.1 Heating 26
8.1.1 Retrofitting the heating re i tor 26
9 Positioners. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.1 Electrical connection 27
9.1.1 Connecting the control line 28
9.1.2 Feedback ignal 28
9.2 Correction with potentiometer "A" and "B" 28
9.3 Rever ing 29
9.4 Sequential mode 29
10 Maintenance and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10.1 Circuit diagram Type SAM - ... with po itioner (maximum equipment) 30

 

Safety instructions
The actuator de cribed below are part of a power plant in tallation for indu trial application .
They are de igned in accordance with the generally applicable technical regulation .
The connection and tart-up of the linear actuator require expert knowledge on the in tallation
of power y tem and equipment (according to DIN VDE 0100), on accident prevention regula-
tion and the pecial tart-up condition for linear actuator .
The e mea ure require qualified per onnel.
According to the e Mounting and Operating In truction , qualified per onnel i referred to a
individual who are able to judge the work they are a igned to and recognize po ible danger
due to their pecialized training, their knowledge and experience a well a their knowledge of
the applicable tandard , e. g.
–
training/in truction or authorization to activate/deactivate, i olate, ground, and mark de-
vice / y tem according to the afety engineering tandard ,
–
training or in truction in accordance with the afety engineering tandard regarding main-
tenance and application of uitable afety equipment,
–
fir t aid training.
Plea e ob erve the following pecial ymbol
u ed in the e Mounting and Operating In-
truction .
Certain afety related information or in truc-
tion are brought to your attention.
Electrical or live part are unprotected and
freely acce ible. Ri k of death!
Symbols in these Mounting and Operating Instructions
•
!
!
DANG R!
Electrical power or live part are
freely acce ible.
If in truction a per the e Mounting
and Operating In truction are not
followed, death or serious injury and
property damage may re ult!
!
WARNING!
Indicate a potentially hazardou itu-
ation which, if not avoided, could re-
ult in property damage or even per-
sonal injury !
NOT !
Here, you will find upplementary detail , in-
formation and tip .
CAUTION!
Indicate a potentially hazardou itu-
ation which, if not avoided, may
cau e property damage!
 
 

1. Principle of operation
The Type SAM ... Electric Linear Actuator are
equipped with rever ible a.c. or three-pha e
a.c. motor . The rotary motion of the motor i
tran ferred to the actuator tem via a gear unit
and the corre ponding tran fer element
where it i converted into a linear "On-Off"
motion.
In ca e the electrical power fail , you can
operate the actuator manually.
Special features
– Nominal thru t from 2 to 25 kN
– Rated travel 15, 30, 60 or 120 mm
– Speed of re pon e 13.5 to 50 mm/min
– A.c. motor 230 V~, 50 Hz
or
three-pha e a.c. motor 400 V~, 50 Hz
– Degree of protection IP 65
DANG R!
During in tallation and operation, uitable power upply y tem mu t be u ed
to en ure that hazardou voltage are prevented from energizing the device in
tandard operating mode or in ca e of a faulty y tem or y tem part .
Otherwi e, per onal injury and/or property damage may re ult.
Any hazard which could be cau ed by the proce medium, the ignal pre ure
and moving part of the control valve are to be prevented by mean of appropri-
ate mea ure.
The proper and afe operation of thi device depend on the proper hipping
and appropriate torage including attachment and in tallation a well a care-
ful operation and maintenance.
You are required to en ure the following:
–
Only qualified individual mu t be a igned to work on thi device.
–
The e individual are required to read and have under tood the Mounting and
Operating In truction upplied with thi product a well a the product informa-
tion.
–
The e Mounting and Operating In truction mu t alway be available. Make
ure that the re pective individual trictly ob erve the in truction li ted for
any work to be performed.
–
Where applicable, tool and mea uring in trument mu t be u ed properly
and in accordance with their intended purpo e. If required, u e your own pro-
tective gear.
–
Work on thi device or near thi device mu t not be performed by unqualified
per onnel.
!

 

1.1 Application
The linear actuator operate the final control
element which require a linear travel motion
from 15 to 120 mm and a po itioning force in
the range of 2 to 25 kN.
The hut-off force of the actuator i adju ted
permanently. The travel, however, can be
modified at a later date.
1.2 Versions
The electrical component are located epa-
rately from the gear underneath the ealed
cover where they are protected from du t and
can be ea ily acce ed when the cover i
removed.
The basic version of the device compri e :
–Two torque
witche DE-S1
and
DE-S2
.
They witch off the motor when the force ad-
ju ted in the actuator i counterbalanced by
a corre ponding force. Thu , they protect
the final control element from damage, and
the actuator from overload.
–One travel
witch WE-S3
for limitation of
the travel in the opening direction.
–Two travel
witche WE-S4
and
WE-S5
for
indicating intermediate and po ition of the
final control element.
The following component can be in talled
optionally:
– A fourth travel
witch WE-S6
for indicating
certain control element po ition .
– One or two
potentiometer
or one
electronic
po ition tran mitter ESR
for analog remote
tran mi ion of the final control element’
po ition.
–One
heating re i tor
to prevent the forma-
tion of conden ation water underneath the
cover when the humidity i high and the am-
bient temperature fluctuate con iderably.
At an in ide temperature of >60 °C, the
heating re i tor deactivate the heating via
a temperature relay; it reactivate the heat-
ing at a temperature of <40 °C.
– One electronic po itioner for the analog
control 0 (2) to 10 V / 0 (4) to 20 mA (only
for 230 V, 50 Hz AC motor ).
1.3 Function
The rotary motion of the motor i tran ferred
to the gear wheel with a female thread via the
gearing.
The pi ton rod with the matching male thread
engage the female thread. An anti-rotation
device ecure the rod and prevent it from ro-
tating.
The pi ton rod perform a linear motion,
either pulling or pu hing, when the female
threaded gear wheel i turned via the motor
gear.
 
 

1.3.1 lectrical equipment
The electrical equipment i located under-
neath the removable hou ing cover.
In addition to the torque witche
D -S1 and
D -S2
a well a three travel witche
W -S3,
S4
and S5 , the actuator can be equipped with
the following witching element and mea ur-
ing in trument :
– One travel witch
W -S6
– Two potentiometer POT R1 and POT R2
– One electronic po ition tran mitter SR
–One
positioner
The axial movement of the actuator tem i
tran ferred via adju ting lever and lider to
the driving lever. The driving lever then pro-
duce a proportional rotary motion via gear
wheel a a mea ure for the two
R1
and
R2
potentiometer or the
ESR
po itioner. The cam
di c located on the axi of the gear wheel
operate the witche
WE-S3, WE-S4, WE-S5
and
WE-S6 .
- D -S1, D -S2, W -S3
DE-S1 witche off the motor depending on
the torque when the actuator tem extend
(final control element "CLOSED") .
DE-S2 witche off the motor depending on
the torque when the actuator tem retract
(final control element "OPEN"), provided that
the final control element can be ubjected to
load in "ON" po ition.
WE-S3 witche off the motor depending on
the travel when the actuator tem retract
(final control element "ON"), provided that
the actuator tem ha completed it travel a
indicated in the ordering text.
- W -S4, W -S5, W -S6
The travel witche
W -S4
,
W -S5
and ome-
time
W -S6
are not adju ted. If required,
they can be adju ted/retrofitted a limit or
ignal witch ( ee ection "7 Adju tment and
calibration").
Fig. 2
⋅
Function of witche and potentiometer ,
travel tran mi ion
NOT !
The switching points of D -S1 and D -S2 are
factory default and cannot be modified.
!
"# 

- POT R1, POT R2, SR
The actuator can be equipped with two
potentiometer
POT R1
and
POT R2
or
- with the Type SAM -20 to SAM -52 - with a
position transmitter SR
that ha an output
ignal of 4 (0) to 20 mA.
Both ver ion enable the analog remote tran -
mi ion of the valve travel.
The potentiometer and the electronic po ition
tran mitter are adju ted to the required travel.
They can be readju ted ( ee ection "7 Adju t-
ment and calibration").
- Positioner
In combination with three-pha e ynchronou
a.c. or brake motor for 230 V, 50 Hz, a
po-
sitioner
may already be in talled a factory
default ( ee ection "9 Po itioner").
Input ignal :
− 4 (0) to 20 mA
or
− 0 to 10 V
When the actual value deviate from the et
point, a manipulated variable i generated to
control the actuator.
Fig. 3
⋅
Switche and potentiometer
Fig. 4
⋅
Po itioner
 $
 "#

2 Technical data
Table 1 ⋅ Mechanical data
Type SAM ... -01 -10 -11 -12 -13 -20 -21 -22 -23
Nominal thrut kN223.54.56681215
Rated travel mm 30
Speed of
re pon e mm/min 15 17 ⋅ 25 ⋅ 50 17 34 13.5 ⋅ 25 ⋅ 50 13.5 22 ⋅ 40
Tran it time at rated travel 120 106 ⋅ 72 ⋅ 36 106
53 133 ⋅ 72 ⋅ 36 133 82 ⋅ 45
Adju ted travel mm 15
Tran it time 60 53 ⋅ 36 ⋅ 18 53
26 67 ⋅ 36 ⋅ 18 67 ⋅ 40 22.5
Mounting po ition Arbitrary, however, motor not vertically u pended.
Actuator tem No mechanical limit top , anti-rotation device: tongue and groove
Handwheel Side-mounted handwheel
Connecting thread M 30 x 1.5
Degree of protection IP 65 according to DIN 40050
Perm. ambient temperature −20 to +60 oC
Table 2 ⋅ lectrical data
lectrical connection In ide terminal trip or terminal trip in terminal box, attached to
actuator or a compact witch
Connected load Single-pha e a.c. 230 V, 50 Hz ⋅ Three-pha e a.c. 400 V, 50 Hz
Operating mode acc. to VDE 0530
Part 1, ection 4 Duty cycling S4 -30% ED-600 c/h
Power consumption
Type SAM ... Actuator -01 -10 -11 -12 -13 -20
-30
-21
-31
Speed of re pon e [mm/min.] 15 17 ⋅ 25 50 17 ⋅ 34 13.5 ⋅ 25
Nominal
current [A]
Motor 230 V~/50 Hz 0.029 0.16 0.18 0.16 ⋅ 0.18 0.1 ⋅ 0.225
Motor 400 V~/50 Hz 0.015 0.11 0.08 0.11 ⋅ 0.08 0.062 ⋅ 0.11
Motor type Synchronou motor
Temperature monitor Not required, only on reque t

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Mechanical data
-30-31-32-33-40-41-42-50-51-52
6 8 12 15 15 20 25 15 20 25
60 120
13.5 ⋅ 25
50
13.5
22 ⋅ 40 25 ⋅ 50 25 ⋅ 50
266 ⋅ 144
72 144 ⋅ 72 288 ⋅ 144
30 60
133 ⋅ 72
36 72 ⋅ 36 144 ⋅ 92
Arbitrary, however, motor not vertically u pended
No mechanical limit top , anti-rotation device:
tongue and groove
Side-mounted handwheel
M 60 x 1.5 M 100 x 1.5
IP 65 according to DIN 40050
−20 to +60 oC
lectrical data
In ide terminal trip or terminal trip in terminal box, attached to
actuator or a compact witch
Single-pha e a.c. 230 V, 50 Hz ⋅ Three-pha e a.c. 400 V, 50 Hz
-22
-32
-23
-33
-23
-33
-20
-30
-21
-31
-22
-32
-23
-33
-40
-50
-41
-51
-42
-52
13.5 22 50 40 25 ⋅ 50
0.145 0.225 0.7 0.7 0.66 ⋅ 0.93
0.85 0.11 0.29 0.29 0.4 ⋅ 0.7
Synchronou motor A ynchronou motor 1)
Not required, only on reque t Bimetallic-element witch
1) Actuator attached to a po itioner require a brake motor
Duty cycling S4 -30% ED-600 c/h
 '
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Table 2 ⋅ lectrical equipment
Switching and signalling equipment
Torque witche
D - ...
Switch
DE-S ...
Two witche
S1 and S2
⋅
Max. 250 V AC
Travel witche
W -...
Switch
WE-S ...
One witch
S3
in opening or clo ing direction
Two witche
S4 and S5
to ignal intermediate or final po ition
Switch
S6
a ignal witch (optional) 1)
Load co ϕ = 1: max. 5 A ⋅ co ϕ = 0.8: max. 3 A ⋅ Lightbulb : max. 2 A
Potentiometer
R
Potentiometer
R ...
One or two potentiometer
R1 and R2
: 110 Ω, 200 Ω, 1 kΩ
Load Max. 1.5 W ⋅ Slider current max. 30 mA
Electronic po ition tran mitter
SR
2)
Connection Four-wire/three-wire connection Two-wire connection
Supply voltage UH18 to 30 V DC 18 to 30 V DC
Max. load RL50 ⋅ (UH− 2.5) Ω50 ⋅ (UH− 12) Ω
Output ignal 0 to 20 mA or 4 to 20 mA 4 to 20 mA
Current con umption Max. 30 mA
Electronic po itioner 3)
Input and output ignal 4 (0) to 20 mA or 0 to 10 V
Heating re i tor With temperature monitor ⋅ 24/110/230 V DC/AC ⋅ 15 W
1) Only for Type SAM-20 to -50: Provided S6 i connected, only one potentiometer (R1) can be
connected in plug-type connection .
2) Only for Type SAM-20 to -52, optionally with potentiometer R1/R2 or po ition tran mitter ESR
3) Only for brake motor or ynchronou motor for 230 V, 50 Hz; for three-pha e a.c. motor , external
rever ing contactor are required.
 
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