WIRING & OPERATING THE ACTUATOR FOR MODULATING
AND FAILSAFE MODULATING FUNCTION
J3 & J3C SERIES: MODULATING & FAILSAFE MODULATING FUNCTION
J3/ J3C / J3CS MODULATING ELECTRIC ACTUATOR
Movement of the actuator is proportional to input signal
Power is applied continuously. Movement of valve actuator is then controlled by an internally fitted digital position-
er 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), but 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 (Fail freeze)
J3/ J3C / J3CS FAILSAFE MODULATING ELECTRIC ACTUATOR (same wiring as modulating version)
Combination of failsafe & modulating above:
Uses battery failsafe system and digital positioner to provide fail to safe position function on loss of external power.
J3 & J3C SERIES: ACTUATOR COVER & DIN PLUG IDENTIFICATION
Models: 20, 35, 55, 85
❷ ❸
❶
DIN Plug No
❶
❷
❸
DIN PLUG IDENTIFICATION
Models: J3-H, J3-L, J3C-H, J3C-L, J3CS
Colour
Grey plug & base
Black plug & base
Black plug & base
End of travel confirmation
Step by Step Wiring Diagram
J3 & J3C
Modulating Electric Valve Actuators
Models: 140, 300
❶
Connection
External power
Control signal (I/O)
J3 J3C Modulating Wiring Step by Step Rev 0 AVS
❷
❸
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