J+J J4C S20 Handbook

FAQS
HANDBOOK_90
The actuator moves and then stops. The operang LED flashes red or green (see status LED).
»» High torque on the valve due to not removed end stops or solids in the valve. Valve must be checked!
»» Model size of the actuator is too small.
The actuator is in posion „open“ but the valve is closed or half opened.
»» Actuator is mounted on the valve with a wrong angle. Dismount, turn the actuator in manual mode to
correct angle, mount it.
The limit switches for end posion feedback do not work.
»» Check the wiring. Check the adjustment of the cams so that they trigger shortly before reaching the end
posion.
»» In load-free interrogaon of the limit switch, soot is formed inside. Actuator with gold contact switches
are to be used.
The actuator moves, but the valve does not.
»» The connecon between actuator and valve is damaged or incorrectly dimensioned.
For other malfuncons, please contact our technical service department.
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J+J J4C S20 Specifications

General

Brand	J+J
Model	J4C S20
Category	Controller
Language	English