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WIRING DIAGRAMS 

We recommend a fused independent supply for each actuator and it is very important that the power supply earth connection is made to prevent 
the current-free voltage on the non-live pin preventing the actuator working. This current-free voltage disappears as soon as the motor runs, but 
in non-earthed systems it can stop the J3C from working. 

The position confirmation switches are volt  free and can have a different voltage applied than the power supply voltage  e.g. 220V/1ph power 
supply, 24VDC for position confirmation.  For ease, the schematic below shows the same voltage for both power and position confirmation.  See 
notes at the bottom of this page regarding use of the volt fee contacts (end of travel confirmation).

 

Function options with the J3C electric actuator: 

J3C ON-OFF ELECTRIC ACTUATOR   

Standard  function  is  power  open,  power  close.  Stays  put  on 
loss of external power. Power remains on at all times. 

 

J3C FAILSAFE ELECTRIC ACTUATOR      

Fails to pre-set position on loss of external power. 

Power  open,  power  close,  fails  to  pre-set  ‘safe’  position  on 
loss of external power using internal industrial trickle charged 
rechargeable  NiCad  battery.    Can  be  set  to  fail  close  or  fail 
open on loss of external power.  The  failsafe electric actuator 
moves to the position command applied at the time external 
power is restored. 

J3C MODULATING ELECTRIC ACTUATOR   

Movement proportional to input signal 

Power is applied continuously. Movement of valve 
actuator  is  then  controlled  by  an  internally  fitted  
digital  positioner  and  is  proportional  to  changes 
supplied  in  an  input  control  signal.  This  input 
signal  is typically  0-10VDC,  or  4-20mA.  An output 
signal  is  supplied  as  standard  providing  closed 
loop control.  Fails closed on loss  of  control  signal 
(or see configuration options below), stays put on 
loss of external power. 

Configuration options: 

1) 

Closes on loss of control signal 

2) 

Opens on loss of control signal 

3) 

Stays put on loss of control signal

 

IMPORTANT NOTES 

EXTERNAL POWER SUPPLY/ COMMAND SIGNALS, AND POWER SUPPLY SIZING 

 

The J3C electric actuator is designed to have continuous (not pulsed) external power applied at all times. It’s internal thermostatic anti-condensation 

heater uses the external power to function, so switching off the power at end of travel switches this protection off. Damage caused by the effects of 
condensation is not covered by our warranty as we provide protection against it as standard. 

It is imperative that the power supply has sufficient 

capacity to drive the J3C  electric actuator. Ensure that safety factor of 3 is used to cover inrush on start-up, and for increased draw over time as the 
brushed DC motor wears.

 

Another issue with using the end of travel confirmation signals to switch off the command signals is that as they are set around 5 degrees ahead of 
the final motor stop position (fully open, or fully closed), if used to switch off the power, the valve will not reach the final motor stop positions. 

J3C FAILSAFE MODULATING ACTUATOR   

Combination of failsafe & modulating kits above:  Uses battery failsafe system and digital positioner plug and  play function conversion kits to provide fail to 
safe position function on loss of external power in a modulating application. 

Page 10 

J3C MODULATING and FAILSAFE MODULATING WIRING  

 

② 

③ 

① 

N/- 

L/+ 

 

VAC/VDC

 

External Power 

4-20mA or 

0-10VDC 

Input 

Output 

4-20mA or 

0-10VDC 

Do not connect 

③ 

① 

② 

Control Signal I/O 

L/+ 

N/- 

N/- 

Note: Above dotted line is 

customer supplied 

Position Confirmation 

CLOSE 

OPEN 

 

VAC/VDC

 

② 

③ 

① 

L/+ 

N/- 

N/- 

CLOSE 

OPEN 

② 

③ 

① 

N/- 

L/+ 

OPEN 

CLOSE 

 

VAC/VDC

 

Note: Above line above is customer supplied 

External Power 

Position Confirmation 

 

VAC/VDC

 

J3C ON-OFF & FAILSAFE WIRING 

(Same connection for either) 

② 

③ 

① 

Содержание H140

Страница 1: ...AFE and or MODULATING plug and play function conversion kits J3C140PPK A4 IOM MAIN Rev 1 Aug 17 Models 140 300 FAILSAFE AND OR MODULATING FUNCTION CONVERSION J3C FAILSAFE ACTUATOR WITH BSR PLUG PLAY K...

Страница 2: ...tion The user friendly BSR failsafe plug and play function conversion kit is quick and easy to install and can be configured on installation to send the J3C electric actuator to either the closed posi...

Страница 3: ...tment on site The J J electric actuator range is guaranteed for 12 months from date of despatch from the manufacturer against all types of manufacturing and material defects Actuators that have failed...

Страница 4: ...nto the base as described above with the battery wires at the top as shown in Photograph 2 Secure the first battery with the plastic plate and screw from the plastic bag as indicated There are 2 pegs...

Страница 5: ...Secure with screw from plastic bag as indicated in the yellow ring in Photograph 4 Photograph 4 Photograph 5 Step 5 Fit the black plastic jumper as shown in Photograph 5 onto the main circuit board fo...

Страница 6: ...pen Jumper Jumper Jumper Jumper Consumption in one 90 degree operation under battery power 15 1mA 15 1mA 253 7mA 25 7mA Battery charge 37mA h 37mA h 37mA h 37mA h Weight of BSR kit 0 38kg 0 38kg 0 38k...

Страница 7: ...e feedback gear aligns with the corre sponding slot in the plastic shaft Ensure the plug and socket connection between the main PCB and the DPS PCB is firmly made Step 3 Secure the DPS PCB with the se...

Страница 8: ...ction on the DPS circuit board selecting either 4 20mA or 0 10V control For reverse acting applications where the control input signal response reverses eg 4mA open and 20mA closed and fails to open p...

Страница 9: ...ory default Jumper fitted in position NC Fails closed on loss of input control signal Actuator fully Closed Actuator opening by input signal Actuator fully Open Actuator closing by input signal Actuat...

Страница 10: ...loss of control signal or see configuration options below stays put on loss of external power Configuration options 1 Closes on loss of control signal 2 Opens on loss of control signal 3 Stays put on...

Страница 11: ...ial execution on request 140 170 F07 F10 22 17 F12 x 22 star 300 350 F07 F10 22 17 F12 x 22 star WEATHERPROOF RATING The J3C electric actuators have an ingress protection rating of IP67 which gives th...

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