Installation Instruction
990.40.101 Rev. C
January 2012
Installation Instructions Positioners Series II
Read these instructions completely before attempting to install calibrate or troubleshoot the positioner.
* Before starting check the kit to ensure that all parts are
available and the MOD card control signal is the same
as required for the application.
* There are two versions:
1. 4-20mA Control signal
2. 0-10V Control signal
1
1
1
1
3
3
1
Drive pinion (large
Potentiometer pinion (small)
Potentiometer spacer
Potentiometer 10K
Print spacer
Spacer/screw
Positioner card
Used on EL:
55
100-1600
*
*
*
*
*
*
*
*
*
*
*
*
Mechanical Installation.
Remove actuator cover (1) and dial (2).
1. Remove actuator cover (1) and dial (2).
2. Mount potmeter (6) on motor top plate using lock nut and spacer
(5).
3. Slide potmeter pinion (small pinion, 4) over potmeter-shaft and
tighten screw.
4. Slide drive pinion (large pinion, 3) over indicator shaft.
5. Ensure that end of travel limit switches have been set correctly.
For direct action: Set the actuator in the close position.
Turn the potentiometer fully CCW and then about 20° CW then
tighten drive pinion fixing screw.
For reverse action: Set the actuator in the open position. Turn
the potentiometer fully CW and then about 20° CCW then tighten
drive pinion fixing screw.
6
Potentiometer setting
Span
Zero
Limitswitch
and rotor
Motor
Fail Action jumpers
19 20 21 48 49 44 46
Indication shaft
Fig. 3
MOD board assembly
Re-transmit output
Command signal
6a.For EL35/55 only;
Insert three print spacers (9) into motor top plate and place
positioner board over indicator shaft so that 3 spacers locate correctly into three holes in circuit board. Now press into place.
6b.For EL100 up to EL1600;
Place positioner board over indicator shaft and mount to motor
top plate using 3 screws and plastic spacers (9) (the screws
engage with 3 nuts welded to top motor plate).
7. Connect three potentiometer leads to positioner terminals (see
fig 11.5):
For direct action: 19-Blue
20-Black
For reverse action: 19-Yellow 20-Black
21-Yellow.
21-Blue.
8. 1 phase: Remove links from 2-10 and 3-7.
3 phase: Disconnect 7 and 10 from the contactors.
9. IMPORTANT! Check or set the voltage switch, on the positioner
board, to the actual power supply voltage (see fig 11.4).
Feedback potentiometer
Fig. 5
Electrical connections and settings
Fail Action Setting
1. All signal wires are to be free of electrical noise and interference.
It is recommended that all signal wires be run in shielded cable.
2. If unit gives a 20 mA reading at closed valve position or a 4 mA
reading at open valve position, check potentiometer wiring (direct
action).
3. If unit moves towards closed position when a higher command
signal (or visa versa) is given, check motor wiring (direct action).
4. If unit does not move to the fully open or closed position, check
zero, span and alignment settings.
5. If actuator is closed, and it is not possible to adjust the zero’ trimmer so that a 4mA reading is achieved, re-install the potentiometer and make sure that the clockwise angle is between 10° and
20°.
1 Default setting: When the jumper is set at J2 and J3, the positioner is set to fail-safe. This means that if the input is disconnected the actuator will stay at its last position.
2 When the jumpers are set at J1 and J4, the positioner is set
to fail to 4mA. This means that if the input is disconnected the
actuator will go to the 4mA position (‘Close’ for direct and ‘Open’
for revers action).
For reverse action, fail to close is not possible.
To achieve a proper functioning of the positioner, this setting has to
be made, even though the signal may not be required.
37 40 41 43 42 50 45 51 45
4-20mA
220 V supply
voltage setting
110 V supply
voltage setting
1. Apply power to the unit (terminals 11 and 12). Check voltage
selector switch.
2. Connect a milli-amp meter (preferably digital) to terminals 44 (-)
and 46 (+).
Deadband setting
Voltage selector switch setting (not on 3 Phase)
Wiring diagram see drawing nr.:
Actuator
Phase
EL 55
1
EL100-1600
1
EL100-2500
3
Drw.
990.40.025
990.40.030
990.40.031
3. Normally the ‘Deadband’ is set so that the actuator will not track
variations of less than ±0.5% in the process control signal.
Minimum deadband setting (fully ccw) is usually satisfactory, but
if the actuator seems to hunt it may be necessary to use a higher
deadband setting (turn ‘Deadband’ trimmer clock wise (CW) for
higher setting).
All rights reserved. Copyright © Emerson Process Management. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.El-O-Matic.com or from your nearest Valve Automation Center:
America’s: +1 813 630 2255 (fax +1 630 9449) Europe: +31 74 256 10 10 (fax +31 74 291 09 38) Asia/Pacific: +65 626 24 515 (fax +65 626 80 028) Copyright © 2009 Emerson Electric Co.
w w w . e l - o - m a t i c . c o m
4. Connect a variable milli-amp source to terminals 48 (+) and
49(-), and apply a 12 mA current.
5. The actuator should now move to an intermediate position. Adjust the ‘Alignment’ trimmer so that a 12 mA reading is achieved
on the meter connected to terminals 44 and 46.
6. Turn the actuator to the fully closed position (just before limit
switch trips) and adjust the ‘Zero’ trimmer so that a 4 mA reading
is achieved.
7. Turn the actuator to the fully open position ( just before limit
switch trips) and adjust ‘Span’ trimmer so that a 20 mA reading is
achieved.
8. Because the zero and span trimmers affect one another, it may
be necessary to alternate between the max. and min. signal
once or twice more and ‘fine tune’ the zero and span controls
until the correct reading is achieved.
9. If the output signal is not required the meter should be replaced
by a wire link.
Important notes:
Output signal setting.
10.Make connections as shown on the wiring diagram.
Fig. 2
Deadband
Alignment
Top motor
Fig. 4
About 20°
clockwise
4-20mA
5
19 20 21 48 49 44 46
Fully counter
clockwise
37 40 41 43 42 50 45 51 45
4
9
Electrical Installation.
Fig. 1
Alignment of in- and output signals.
3
16
plate
Pos Qty Description
3
4
5
6
9
9
16
MOD 4-20mA
Reverse action
1 The MOD-Board can also be used for revers action. This means
that a 4mA signal is the ‘Open’ and 20mA is the ‘Closed’ position.
2 To set the actuator for revers action, make the connections as
shown on the wiring diagrams. Except the wiring of the limit
switches, the motor and the potentiometer (see table (‘Connections for revers action).
Connections for reverse action
Wiring of :
To Mod Board:
2
Motor
3
4
7
Limit switches
10
yellow
Potmeter
black
blue
43
42
41
51
50
19
20
21
Installation Instruction
990.40.101 Rev. C
January 2012
      
4A 4 37 40
M
SC
COM
NO
NC
COM
NO
COM
NC
NO
NC
NO
NC
LIMIT SW.2
OPEN
FEEDBACK POT
NO


NC

LIMIT SWITCH 6
LIMIT SWITCH 4 LIMIT SWITCH 5

 
 



   




IMPORTANT
Each actuator must be powered through its own
individual switch or relay contacts to avoid
cross feed between two or more actuators.
LIMIT SWITCHES SHOWN IN MID STROKE
KIT OPTIONS, LC _ 2LS _ SC , ONLY ON ORDER
KIT OPTIONS SHOWN IN DOTTED LINES
         

* 1 NO WIRE BY SPEEDCONTROL SC
* 2 WITHOUT LOCAL CONTROL
LCPOTMETER TO TERMINAL 19, 20, 21 MOD
INPUT 4-20 mA TO TERMINAL 48, 49, MOD





































*6
0
LIMIT SWITCHES SHOWN IN MID STROKE
I
N
T
E
R
N
A
T
I
O
N
A
L
All rights reserved. Copyright © Emerson Process Management. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.El-O-Matic.com or from your nearest Valve Automation Center:
America’s: +1 813 630 2255 (fax +1 630 9449) Europe: +31 74 256 10 10 (fax +31 74 291 09 38) Asia/Pacific: +65 626 24 515 (fax +65 626 80 028) Copyright © 2009 Emerson Electric Co.
w w w . e l - o - m a t i c . c o m





 




 


  
  
 





  





  





















 









 







 
 





LIMIT SWITCHES SHOWN IN MID STROKE
          

 


   

2 LS
LOCAL-REMOTE LC CLOSE-O-OPEN LIMIT SWITCH 3





    



    
 












67
BLUE
GREEN
YELLOW
66

S
SPEED CONTROL LIMIT SW.1
CLOSE
65
COM
NC
0
MOTOR 1
64
COM
COM
NO
63
WHITE
62
RED
27
BLACK
26
GREEN
25
BLUE
24
WHITE
BLACK
75
RED
74
YELLOW
WHITE
73
23
 





22
YELLOW
71 70
72
WHITE
21
WHITE
BLUE
20
YELLOW
19
10
BLACK
9
BLUE
WHITE
8
GREEN
7
YELLOW
6
RED
BLACK
BROWN
BROWN
BROWN
BROWN
PURPLE
C
5


*2
4
3
BLACK
2
BLUE
1
-




+
AUX. BOARD LC
11

49
48
 

BROWN
69
 




68




*2


61
HEATER
10W




60
49
BLACK
12
59
48




21
BLUE
*1
20


 

19



51








45
SC 37
 










 



50
12
BLACK
45
-

11
40
BLACK
41
43
37
MOD CONTROL SERIES
+
BLUE
42
46
44
BLACK
-
+
LIVE
SC 40
YELLOW
ACTUATOR WIRING
CONNECT A MILLIAMPMETER
OR JUMPER WIRE



NEUTRAL
      
 


+

INPUT
4-20mA
INCOMING POWER
BROWN
FIELD WIRING
-



OUTPUT
4-20mA



          

 
         






 



































