Series EA Electric Actuators Low Torque, Medium Torque, and

Series EA Electric Actuators Low Torque, Medium Torque, and
Series EA Electric Actuators
Low Torque, Medium Torque,
and Spring Return
1321-IN-003-0-13
© Copyright Eurotherm Limited 2011
August 2011
For use with VB-7000 and VB-9000 Series valve bodies from Invensys Eurotherm
and many other commercially available rotary shaft valve bodies with crank arm
and HVAC and combustion air dampers.
Used for two position, floating, and proportional control of dampers and valves in industrial
applications. Typical applications are heat treat furnaces, ovens, heat recovery systems,
water or oil cooling systems.
Features
•
•
•
•
•
•
1
Proportional Actuators with Built-in Feedback Potentiometers
Spring Return and Non-spring Return Models Available
24 Vac, 120 Vac and 240 Vac Models Available
Die Cast Housings with Four 1/2” conduit Openings
Oil Immersed Motor and Gear Train
SPDT Auxiliary Switch Standard
Introduction
Actuators of this family may be easily identified by referring to the part number shown on the
nameplate on top of the gear case. The date of manufacture stamped on the case is a four
digit number. The first two represent the week of the year, the last two represent the year.
These actuators meet the requirements of both damper control and valve control applications
where it is desirable to move the load in either direction, or to stop it at any point in the stroke.
All models contain feedback slidewires for true position-proportional control.
Actuators are shipped without mounting hardware or linkage. In damper applications, crank
arms, connectors, link rods and mounting brackets will be required. In valve applications,
valve bodies and AV type linkages will be required.
Before installing the actuator, look for bent or broken parts or oil leaks. Actuators should be
connected to a power supply to check operation prior to installation.
Instruction Manual
Low/Medium Torque Actuators
The actuator should be operated in ambient temperature of -40 °F to 136°F (-40°C
to 58°C). Input is 28 watts and 50 VA. All standard actuators include a 100 ohm
feedback potentiometer. The active winding of the potentiometer is either 180 or
90 angular degrees, as defined by the model number code selection.
2
Specifications
Actuator Inputs
Input Control Signals: Refer to the actuator part number for input control signal capability of your specific
actuator model.
Floating Control : Requires one SPDT switch with floating position (center off) rated at 0.9 amps @
24 Vac, or two SPST switches rated at 0.9 amps @ 24 Vac.
Two Position: SPDT requires snap acting switch rated a 0.9 amps @ 24 Vac (no center off
position) SPST can be used with certain spring return actuators. Switch must be
rated to handle actuator power requirements.
Current/Voltage/
Potentiometer: Requires Model 658 or Model 659 position converter. See part number for
ranges.
Connections: Coded screw terminals.
Actuator Outputs
Power Requirements: Refer to the actuator part number to determine power requirements.
Torque: Refer to the actuator part number to determine torque rating.
Nominal Damper Area: Actuator Torque
lb.-in (N-m)
50
(5.6)
60
(6.8)
130 (14.7)
220 (24.9)
450 (40.9)
Parallel Blade
sq. ft. (m2)
28
(2.6)
33
(3.1)
72
(6.7)
122 (11.3)
250 (23.2)
Opposed Blade
sq. ft. (m2)
36
(3.3)
42
(3.9)
92
(8.5)
157 (14.6)
322 (29.9)
Note: Damper ratings are nominal and based on standard (not low leakage) at 1”
(25.4 mm) W. C. differential pressure across the damper in the closed position
and 2,000 FPM (ten m/s) velocity in the full open position.
Stroke: Refer to the actuator part number to determine degrees of rotation.
Auxiliary Switch: Electrical Rating
Running
Locked Rotor
Non-inductive
120 Vac
5.8 amps
34.8 amps
12
240 Vac
2.9 amps
17.4 amps
6
Environment
Ambient Temperature Limits: Shipping and storage:-40°F to 160°F (-40°C to 71°C)
Operating:
-40 °F to 136°F (-40°C to 58°C)
Humidity: 5 to 95% RH, non-condensing
Protection: NEMA 1. NEMA 4 for actuators with code 37 in field 7,8.
Page 2
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1321-IN-003-0-13
Low/Medium Torque Actuators
3
Model Number
Model E A
Field No. 1 2
3 4
-
5
6 7
Fields 1, 2. Model Series
EA - Base Model
Fields 3, 4. Base Model
Travel
Time
Torque
Limits
(seconds)
(lbs/in; N-m)
Low Torque; Non-Spring Return
21*90°
12
50; 5.6
22*180°
25
50; 5.6
23 90°
12
50; 5.6
24 180°
25
50; 5.6
Low Torque; Spring Return
41 90°
45
50; 5.6 (cw)
42 180°
90
50; 5.6 (cw)
44 180°
90
50; 5.6 (ccw)
Medium Torque; Non-Spring Return
51 90°
12 (adj)
60; 6.8
52 180°
25 (adj)
60; 6.8
53 90°
12
60; 6.8
54 180°
25
60; 6.8
55 90°
40 (adj)
220; 24.9
56 180°
80 (adj)
220; 24.9
57 90°
40
220; 24.9
58 180°
80
220; 24.9
60 90°
65
450; 50.9
61 180°
130
450; 50.9
Fields 5, 6. Input
Note: Model 658A is a current to position converter;
model 659A is a resistance to position converter.
Input Signal Converter Model
00 - Contact
11 4 to 20 mAdc 658A-00001
12 4 to 12 mAdc 658A-00002
13 12 to 20 mAdc 658A-00003
14 2 to 12 mAdc 658A-00004
15 2 to 7 mAdc 658A-00005
16 7 to 12 mAdc 658A-00006
19 Other, Special 658A-00008-000-X-XX**
31 Slidewire 659A-00000
The following codes are rain tight input converters mounted
to the series EA. To order the series EA weather resistant,
you must select cover option 37 (fields 7, 8).
Rain T ight Converters:
21 4 to 20 mAdc 658A-00011
22 4 to 12 mAdc 658A-00012
23 12 to 20 mAdc 658A-00013
24 2 to 12 mAdc 658A-00014
25 2 to 7 mAdc 658A-00015
26 7 to 12 mAdc 658A-00016
29 Other, Special 658A-00018-000-X-XX**
41 Slidewire 659A-00010
**Consult factory.
1321-IN-003-0-13
8
9
-
10 11 12
-
13
-
14 15
Fields 7, 8. Options
00 - None
37 - NEMA 4 weather resistant cover. This option must
be included if rain tight converter is ordered.
Non-Spring Return Actuators Only
Options 01 through 07 cannot be combined with rain tight
converters.
01 - Two auxiliary SPDT switches
02 - Four auxiliary SPDT switches
03 - Rear shaft
04 - 100 Ω rear slidewire
05 - 100 Ω rear slidewire with two switches
06 - 1000 Ω rear slidewire
07 - 1000 Ω rear slidewire with two switches
31 - One 100 Ω rear slidewire, weather resistant
32 - Two 100 Ω rear slidewires, weather resistant
33 - Three 100 Ω rear slidewires, weather resistant
Field 9. Motor Voltage/Frequency
0 - 120 Vac 60 Hz
1 - 120 Vac 50 Hz (n/a with EA52, 54)
3 - 240 Vac 60 Hz (n/a with EA21, 23, 24, 41)
4 - 240 Vac 50 Hz (n/a with EA21, 23, 41, 53, 58)
5 - 24 Vac 60 Hz (n/a with EA21, 23, 41, 51, 53, 54 or
658A or 659A)
Fields 10, 11. Transformer
Non-Spring Return Actuators Only
00 - None
01 - Built-in 120 – 24 Vac (n/a with 658A or 659A)
02 - Built-in 240 – 24 Vac (n/a with 658A or 659A)
Field 12. Feedback Slidewire
0 - 100 Ω
1 - 135 Ω
2 - 500 Ω
3 - 1000 Ω
Fields 13, 14, 15. Special
0-00 - None
*Note: Models EA21 and EA22 do not include end of
travel limit switches or an auxiliary switch.
Invensys Systems, Inc. 44621 Guilford Drive Suite 100, Ashburn, VA, 20147, USA
(+1 703) 724 7300
Page 3
Low/Medium Torque Actuators
4
Installation
CAUTION!
Disconnect the power supply (line power) before
installation to prevent injury and equipment damage!
Make all connections in accordance with the wiring diagram
and in accordance with national and local electrical codes.
Use copper conductors only!
CAUTION!
Do not exceed the ratings of the devices!
Avoid locations where excessive moisture, corrosive fumes,
or vibration is present!
Note: If, after wiring is completed, the actuator shaft does not turn in the desired
direction, invert leads to terminals 2 & 3, and to 7 & 8 of the actuator
terminal block!
Make all electrical connections in accordance with the job wiring diagram and in
compliance with national and electrical codes. Power wire selection is shown
below. When multiple 24 Vac actuators are powered from the same transformer,
the actuators must be in phase; connect the same transformer lead to the “G”
terminal on all actuators and the same transformer lead to the “H” terminals on all
actuators.
Power
AWG
Maximum Run
24 Vac
14
115ʼ
(35 m)
24 Vac
12
180ʼ
(55 m)
24 Vac
10
285ʼ
(87 m)
120 Vac
14
810ʼ (247 m)
120 Vac
12
1275ʼ (388 m)
120 Vac
10
2040ʼ (622 m)
240 Vac
14
3340ʼ (1018 m)
Line voltage units include a barrier which separates the line voltage terminals from
the low voltage. On line voltage actuators, Class I circuits must be used for
connections to power terminals (L1, L2) and auxiliary switch terminals (1, 5, 6) On
24 Vac actuators, Class II circuits may be used for connections to power terminals
(G, H) and auxiliary switch terminals (1, 5, 6) if the auxiliary switch terminals are
connected to 24 Vac or are not being used. Class II circuits may be used in the
low voltage compartment to make connections to control circuit terminals (X, 2,
3) and potentiometer terminals (4, 7, 8).
Damper Mounting Do not mount low torque actuators upside down. Do not mount adjustable speed
units with output shaft up, or with speed adjustment screw pointing up. Other
actuators may be mounted in any position, although the upright position is
recommended.
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1321-IN-003-0-13
Low/Medium Torque Actuators
Damper Linkage Assembly
CAUTION!
The damper must not be mechanically stopped
before the actuator has reached its electrical limit of travel
or permanent damage can occur to the actuator!
1. During installation of the linkage assembly, place the primary controller in the
manual mode to drive output high or low. Or, control the actuator manually
as shown in Figure 11 on page 13.
2. Mount the actuator in an appropriate position near the damper. Actuator must
be linked to the damper so that it can complete its full stroke. Damper rod that
is too long is not rigid enough for good control and damper rod that is too short
makes it difficult to adjust the linkage.
AM 132
Ball Joint
Linkage Connector
3. Attach a ball joint (linkage connector) to the actuator and damper crank arms
at the correct position in the crank arm slot depending on the application. See
Figure 1. A 180°rotation damper actuator provides the best close-off at the
end of stroke and the best controllability (turn down ratio).
4. Typically the damper should be linked for an angular rotation of less than 90°
that provides the required flow (typically 60°). This provides the optimum
close-off and controllability.
Ball Joint Position,
180° Rotation Actuators
Damper
Actuator
Damper
Rotation
Arm
Arm
90°
2-1/4” (1)
3-1/8” (2)
80°
2”
3-1/8” (2)
70°
1-3/4”
3”
60°
1-1/2”
3”
(1) = Prick point. (2) = End of slot.
Ball Joint Position,
90 ° Rotation Actuators
Actuato r
Dampe r
Arm
Arm
3-1/8” (2)
3-1/8” (2)
2-3/4”
3”
2-1/2”
3”
2-1/4” (1)
3-1/8” (2)
Prick Point
1
2
3
Figure 1. Slot provides adjustment from 7/8” to 3-1/8”.
5. With the actuator powered, manually position the actuator to the position that
is required for the closed position of the damper. Rotate the damper to its midstroke. Install the crank arms on the damper shaft and the actuator so that
crank arms are parallel. The crank arm on damper shaft should be secured
to the shaft and the crank arm on the actuator should be free to rotate.
6. Attach the push rod to the ball joint connectors on both crank arms and tighten
the ball joint screws only thumb tight.
1321-IN-003-0-13
Invensys Systems, Inc. 44621 Guilford Drive Suite 100, Ashburn, VA, 20147, USA
(+1 703) 724 7300
Page 5
Low/Medium Torque Actuators
7. Rotate by hand the crank arm on the actuator to drive the linkage and the
damper shaft through its full stroke to ensure proper damper action.
8. Return the damper to its closed position and tighten to secure the actuator
crank arm.
9. While pushing the damper closed, tighten the ball joint screws to secure the
damper rod.
10. Run the actuator back and forth through its full stroke and check for proper
damper and linkage operation. Adjust linkage if required.
CAUTION!
If the crank arm does not provide proper travel, reset the linkage.
Never attempt to turn the actuator shaft with a wrench or crank;
this may damage the actuator!
Figure 2. Typical Actuator Mounting Positions.
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1321-IN-003-0-13
Low/Medium Torque Actuators
90 ° Ac tuators
180 ° Actuators
Figure 3. Typical Damper Linking.
Note: If, after wiring is completed, the actuator shaft does not turn in the desired
direction, invert leads to terminals 2 & 3, and to 7 & 8 of the actuator
terminal block!
1321-IN-003-0-13
Invensys Systems, Inc. 44621 Guilford Drive Suite 100, Ashburn, VA, 20147, USA
(+1 703) 724 7300
Page 7
Low/Medium Torque Actuators
Valve Installation
Install all globe type valves with pressure under seat except where a flow direction
arrow on the valve body indicates otherwise. For best control, three way valve
applications should be designed to use mixing valves.
Preferred mounting is with valve stem upright, but can be mounted in other positions.
Valve assemblies using an adjustable speed actuator should never be mounted
upside down or with front (indicator side) of actuator facing up.
Actuator
1
Nylon Bushing
2 3
Plunger Assembly
2
Front Cover
2 3
4
Plunger Cam
2 4 5
Indicator
2
3
Mounting Bracket
2
Indicator Screw
2
3
Stem Extension
3
2
Connecting Pin
2 3
Cover Screws (2)
2 3
Mounting Screws (3)
2
Stem Locknut
2 3
Packing Nut
1
Mounting Nut
1
4
Valve Body
1
3
1 Not included in AV Kits.
2 These items are included in AV-391
and AV-393 Linkage Kits.
3 Included in AV-390 Common Parts Kit.
4 Included in AV-91 and AV-93 Cam,
Plunger, and Stem Extension Kit.
5 Use cam marked "7" for 1/2" to 1-1/4"
VB-9XXX. Use cam marked "77" for
1/2" to 2" VB-7XXX.
Figure 4. Typical Valve/ActuatorAssembly Components.
Note: Information for linkage kits to Barber-Colman Series VB-7000 and VB-9000
valves is available as accessory information in document 1322-IN-007-0-XX. Linkage to other valve bodies of similar stem stroke and collar size may be achieved by
adjustment of these linkage kits.
Valves are normally factory assembled and tested prior to shipment, but when
necessary to assemble the valve, proceed as follows:
Page 8
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1321-IN-003-0-13
Low/Medium Torque Actuators
1) Apply power to L1 and L2 (G and H for 24 Vac). Install a jumper from terminal
2 to X. Run actuator shaft to clockwise end of rotation (short tooth of output
shaft at 9 oʼclock). Remove jumper when position is obtained.
2) Slip Nylon bushing on actuator shaft.
3) Place plunger cam in plunger assembly with point of cam down, then slip the
cam on the actuator shaft. It is imperative that the point of the cam be
downward to assure proper correlation between actuator direction of rotation
and the valve closed position.
4) Screw stem lock nut and stem extension down to bottom of threads on stem.
5) Remove the valve packing nut and bracket nut from valve and place bracket
on valve body. Replace the valve bracket nut, packing nut, and tighten. Place
actuator on mounting bracket while at the same time aligning plunger
assembly over the stem extension. Fasten actuator to the mounting bracket
with the three 1/4-20 screws provided.
6) Adjust plunger spring compression: stem length should be such that the disc
seats before the actuator reaches the end of its closing stroke. Remainder
of travel is taken up in plunger spring compression and should amount to
approximately 1/16”. This provides pressure on disc in closed position and
tends to compensate for disc and seat wear. On three way valves, spring
compression should be provided on both upper and lower seats.
Spring
Compression
Plunger Spring
Housing
Stem Extension
Valve Open
Valve Closed
Connecting Pin
Stem Lock Nut
Valve Stem
Figure 5. Stem/Plunger
7) Push down on the valve stem to make sure the disc is on the valve seat.
8) Turn the stem extension up into the bottom of the plunger assembly until hole
line up with the holes in the plunger assembly. Then turn the stem extension
two complete turns further in the same direction.
9) Run actuator partly open by placing a jumper between terminals 3 and X and
raise valve stem until the connecting pin can be inserted through the plunger
and stem extension holes together. Tighten stem lock nut against stem
extension.
10) Place front cover over plunger assembly and fasten to the actuator with the
self-tapping screws provided. Install position indicator to end of actuator shaft
by aligning the key in the indicator with the notch in the plunger arm. Then
fasten in place with the provided screw.
Checkout
1321-IN-003-0-13
After the system has been installed, the following checks for proper operation may
be used:
1) Set controller to call for process variable decrease. Check actuator rotation
to insure correct direction.
2) Set controller to call for process variable increase. Check actuator rotation
to insure correct direction.
Invensys Systems, Inc. 44621 Guilford Drive Suite 100, Ashburn, VA, 20147, USA
(+1 703) 724 7300
Page 9
Low/Medium Torque Actuators
5
Run/Adjust
Looking at the front of the actuator (the shaft facing you), a 4 mAdc input signal will
cause the actuator to rotate CW (closed between terminals 2 and X). With a 20 mAdc
input signal, the actuator will rotate CCW (closed between 3 and X)
Actuator variations are shown in Figure 6. Line voltage proportional actuators without
optional transformers are designed to be driven directly from position-proportioning
temperature controllers, contacts from manual position switches, or current or
resistance to position converters.
Line voltage proportional actuators can be purchased with a built-in transformer to
supply low voltage to external circuits for a paralleling relay or position indicator.
All actuators in this series utilize a reversible shaded pole motor with two shading
coils. The field of the motor is typically energized continuously. Shorting either
shading winding (X-2 or X-3) will cause the motor to run in the appropriate direction.
In spring return models, interruption of power to the field will cause the motor to drive
to the selected end of stroke (fully CW or CCW, depending on model)
AUXILIARY SWITCH
(see note 3)
X
1
2
3
4
100 Ω
POT
CW
CCW
24 V Red
CCW
6
7
8
L1
L2
FIELD COIL
Blu
e
5
MOTOR
TRANSFORMER
(OPTIONAL)
0V
12 V
REMOVABLE JUMPER
(GREEN WIRE)
LIMIT
SWITCHES (except low torque, non spring
return actuators do not have
limit switches)
CW
SHADING
COILS
NOTES:
1) Open circuit shading coil voltage = 24 Vac (supplied by actuator).
2) Transformer secondary leads must be removed from terminals 7 and 8 if actuator is
operated by a current or resistance converter, or external temperature controller.
3) Some low torque non-spring return models available without built-in auxiliary switch.
Figure 6. Internal Wiring
5.1
End of Travel
Limit Switch Adjustment
Terminal
Block
Plate
Access
Hole
Limit & Aux.
Switch Block
Terminal
Block
You can adjust the
Aux. Switch
Adj. Disk
high end (CCW) of
Potentiometer
travel limit switch by
Wiper Arm
inserting a screwDrive
Disc
driver through the
Figure 7.
access hole in the
Top View
terminal block plate
to the notched cam near the front of the
actuator. Turn the cam clockwise – as
seen from the front of the actuator – to
Potentiometer
Feed-Through
Motor &
increase the length of rotation; turn the
Resistance Card
Terminal Block
Pinion Assy.
cam counter-clockwise to decrease. Each
Figure 8. Exploded View
click of the cam represents about 3°
Page 10
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Limit
Switches
Gear
Train
Speed
Adjustment
(Optional)
Cams
1321-IN-003-0-13
Low/Medium Torque Actuators
change. Attempting to adjust for more than the nominal rotation rating in degrees
will cause the slidewire (potentiometer) wiper to exceed its travel end limits and
affect calibration. Different slidewires are furnished for 90° or 180 °models.
The clockwise, low end of travel limit switch (middle switch) is fixed and cannot
be field adjusted. If the actuator terminal block plate is ever removed, it is
imperative that it be replaced in its original position. If this is not done, the
clockwise limit switch setting may change slightly as the switches themselves are
anchored to the underside of the terminal block plate. Rotation is stopped when
the switch cam follower rides up a lobe of its cam.
On valve actuators, it is important that the plunger cam and indicator point straight
down at the clockwise end of the actuator rotation. Minor adjustments in the
clockwise limit switch can be made to accomplish this by loosening the top plate
and shifting it slightly in the screw slots until the proper location is attained.
5.2
Auxiliary Switch Adjustment
The adjustable, built-in SPDT auxiliary switch is actuated by the cam nearest the back of the actuator. It is
factory set to switch near the CW end of the actuator
rotation. Terminal 1 of the common of the switch is made
to terminal 5 from the CCW end of rotation until the
switch point, then terminal 1 is made to terminal 6 for the
rest of the stroke.
To adjust the switch point of the auxiliary switch, follow
the steps shown below.
Figure 9. Adjusting
Auxiliary Switch
Note: If, through mis-adjustment or damage, actuator travel has been increased
beyond 180°, the auxiliary switch may, depending on its switch point, operate
twice in a given stroke.
1. Remove the top cover of the actuator.
2. The actuator should be powered and positioned to desired point in actuator
stroke for the auxiliary switch to operate.
3. The access hole for the auxiliary switch adjustment is located in the terminal
plate of the actuator, near terminal 1.
CAUTION!
Disconnect the power to the actuator at the power terminals (H and G or
L1 and L2) plus the auxiliary switch terminals (1, 5, 6) More than one
disconnect may be required!
5. Turning the cam CW (as seen from the front of the actuator) increases the
length of actuator rotation. Each click of the cam represents about 3° change
in actuator rotation.
6. After adjusting the cam, check the rotation by shorting actuator terminal X to
terminal 3 to drive the actuator to its new CCW limit setting.
7. If the travel is not what is desired, repeat steps 2 through 6 until desired results
are obtained.
1321-IN-003-0-13
Invensys Systems, Inc. 44621 Guilford Drive Suite 100, Ashburn, VA, 20147, USA
(+1 703) 724 7300
Page 11
Low/Medium Torque Actuators
5.3
Speed Adjustment (Optional)
You can adjust the timing speed of some models of medium torque actuators with
the slotted adjustment screw on the lower left side of the front housing. Turn the
screw clockwise to decrease the speed. Total timing can be decreased to about
1/10 the normal. For example, an actuator whose timing is normally 25 seconds
to travel full open can be increased to approximately 250 seconds. Take care not
to turn the adjustment screw too far clockwise as this will stall, but not damage,
the actuator. If stalling occurs, turn the screw counter-clockwise until the motor
resumes operation. The total adjustment is normally 3-1/2 turns.
6
Maintenance
Minimum maintenance is required since the motor and gear train are submerged
in oil for continuous lubrication and cooling. If necessary to refill the actuator with
oil (refill capacity 1 to 1-1/4 pints), always use immersion oil which is available in
quart containers (BYZP-195). For best performance, oil level – with actuator
upright – should be up to the edge of the oil fill hole which is located in the front
case of the actuator. In this case, lay the actuator on its back when refilling with
oil.
7
External Wiring
A primary controller with current output driving either a Model 658 Current to
Position Converter, or a retransmitting slidewire driving a Model 659 Resistance
to Position converter can be used to control an EA Series Actuator as illustrated
in Figures 13 and 14. Also, see wiring table on last page.
Terminal X is the shading coils common connection and is normally connected to
case ground with a green wire jumper. This jumper may be removed if the control
instrument requires that the input connections to the electric actuator be isolated
from ground. Normally, the jumper should remain connected.
Note: Feedback slidewire
connections not shown.
Call for decreased heat closes C to L and
shorts X to 2 for CW rotation. Call for
increased heat closes C to H and shorts
X to 3 for CW rotation.
Controller contacts must be isolated
from all other circuits, and from ground.
Low voltage supplied
by actuator
B
R
C
4
2
7
X
H
L
6
C
Primary
Controller
8
L2
5
Actuator
1
L1
7
X
8
6
L2
5
3
4
3
2
1
L1
1
Temp rises closes C to B for CW rotation
Temp drop closes for C to R for CCW rotation
1 = Line Voltage
Figure 11. Two Position Control by an On/Off
Temperature Controller or Thermostat.
1
1 = Line Voltage
Figure 10. Position Control
Page 12
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1321-IN-003-0-13
Low/Medium Torque Actuators
Low voltage supplied
by actuator
CCW
CW
4
3
2
Orange
Note:
Wiring color codes
apply to Model 658A.
Model 658B shown.
7
X
Brown
Wht-Blu
Blk-Blu
1
8
6
L2
5
L1
+
Short X to 2 for CW rotation
Short X to 3 for CCW rotation 1
1 = Line Voltage
7
X
L2
5
4
3
2
Red-Yel
Input signal Black
from primary
Red
controller
8
6
Yellow
-
L1
1
4 7 8 x 2 3
1
COM 120 240
Figure 12. Manual Control of a
Proportional Actuator
ZERO
Violet
Blue
Blk-Wht
Line
1 voltage
D.B. SPAN
Model 658B
Current to Position Converter
1 = Line Voltage
Figure 13. Current Input Control
Auxiliary Potentiometer
100 to 1000 Ohm Retransmitting Slidewire
CCW
CW
L2
X
2
3
4
7
8
+
-
Normal
Black- White – 240
Blue – 120 Vac
Violet
Red-Yellow
Black-Blue
White-Blue
Brown
Yellow
Orange
Red
Black
Yellow
Reverse
Vac
Brown
Wht-Blu
Blk-Blu
White-Blue
Black-Blue
Red-Yel
Red
No.
L1
Orange
Orange
Yellow
1
8
6
L2
5
- 4 7 8 x 2 3
COM 120 240
Violet
Blue
Blk-Wht
7
X
N.C.
+
4
3
2
ZERO
1
L1
1
D.B. SPAN
Model 659B
Wiring , Normal Direction:
Increased input or call for heat: x to 3 closes causing CCW rotation
Decreased input or call for cooling: x to 2 closes causing CW rotation.
Wiring , Reverse Direction:
Increased input or call for heat: x to 2 closes causing CW rotation
Decreased input or call for cooling: x to 3 closes causing CCW rotation
Note:
658A and 659A wire colors shown for normal direction
658B and 659B terminal strips shown on case outline
See table on last page for more information.
Figure 14. Slidewire Resistance Input Control
1321-IN-003-0-13
Invensys Systems, Inc. 44621 Guilford Drive Suite 100, Ashburn, VA, 20147, USA
(+1 703) 724 7300
Page 13
Low/Medium Torque Actuators
8
Mounting Dimensions
Spring Return
Only
7”
(178 mm)
4-3/16”
(106 mm)
1/2” Conduit Knockouts
(Two Each Side)
3-7/8”
(97 mm)
8-1/8”
(206 mm)
4”
(102 mm)
6-5/16”
(160 mm)
1-13/16”
(46 mm)
17/64” (6.7 mm)
Dia. Holes
5-3/8”
(136 mm)
2”
(51 mm)
15/16”
(24 mm)
4-3/4”
(121 mm)
2-3/8”
(60 mm)
1-1/2”
(38 mm)
1-7/16”
(36 mm)
2-1/4”
(57 mm)
1-5/8”
(41 mm)
Figure 15. Mounting Dimensions, EA Actuator
Page 14
www.eurotherm.com
1321-IN-003-0-13
Low/Medium Torque Actuators
6-13/16"
(173 mm)
Two 1/2" Conduit
Knockouts
5-3/8"
(136 mm)
4-1/8"
(105 mm)
2"
(51 mm)
Spring Return
Only
1/4"
(6 mm)
4-13/16"
(122 mm)
2-9/16"
(65 mm)
3-7/8"
(96 mm)
7"
(178 mm)
4-3/16"
(106 mm)
7"
(178 mm)
658A
or
659A
3-7/8"
(97 mm)
8-1/8"
(206 mm)
4"
(102 mm)
1-13/16"
(46 mm)
6-5/16"
(160 mm)
17/64" (6.7 mm)
Dia. Holes
4-3/4"
(121 mm)
7-1/2"
3-1/8"
(79 mm)
2"
(51 mm)
15/16"
(24 mm)
3-1/8"
(79 mm)
2-3/8"
(60 mm)
1-1/2"
(38 mm)
1-7/16"
(36 mm)
2-1/4"
(57 mm)
1-5/8"
(41 mm)
Figure 16. Mounting Dimensions, EA Actuator with Converter
1321-IN-003-0-13
Invensys Systems, Inc. 44621 Guilford Drive Suite 100, Ashburn, VA, 20147, USA
(+1 703) 724 7300
Page 15
Current Converter and Resistance Converter Wiring
Model 658 Using the connections shown in the table below, increasing input causes CCW actuator
rotation. To reverse actuator rotation, invert leads at actuator terminals 7 & 8, and 2 & 3.
A special option (65 or 66 in fields 14, 15 of the converter model code) is available on Model
658A that provides an extra (white) wire for activation of the purge option used on a burner
control. A dry contact closure between the purge wire and the input + (red) wire will drive the
actuator full open to provide 100% flow for air purge of a gas burner. Converters with special
option 65 are wired for mounting on the left side of the actuator; converters with option 66 are
wired for the right side of the actuator.
Model 659 Using the connections shown in the table below, CW rotation of slidewire (or potentiometer)
causes CW actuator rotation. To reverse actuator rotation, invert leads A & B
Note: All references to direction of rotation are determined by looking at actuator output shaft.
Converter
Actuator Terminal Numbers
Terminal Number
Wire Color
Model 658/659B Model 658/659A
Low, Medium Torque
(EA2X, 4X, 5X, 6X)
4
Brown
4
7
Yellow
7
8
Orange
8
X
Red-Yellow
X
2
Black-Blue
2
3
White-Blue
3
COM
Violet
L2
120 Vac
Blue
L1
240 Vac
Black-White
L1 (see motor voltage rating)
+
Red
-
Black
n/a
White
Remote Slidewire or Potentiometer
(with Model 659 Resistance Converter)
Model 658: Connect to positive output
terminal of controller. (See purge option below).
Model 659: Connect to wiper of remote
slidewire or potentiometer (See below)
Model 658: Connect to negative output
terminal of controller.
Model 659: Not connected.
Model 658A: Purge option:(special 65 or 66),
dry contact that closes to red lead.
CCW
CW
A
B
7
Actuator
+ 659B or red lead from 659A
8
Actuator
© Copyright Eurotherm Limited 2011
Page 16 of 16
Invensys Systems, Inc. 44621 Guilford Drive Suite 100, Ashburn, VA, 20147, USA
(+1 703) 724 7300
1321-IN-003-0-13
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