When the alarm zone of a Ruiji RJ intelligent electric actuator shows a F-05 to F-15 code, match it against four groups: signal alarms (F-05 lost 4-20mA signal, F-06 simultaneous open/close signals, F-13 phase loss), ESD alarms (F-08 closing, F-09 opening, F-10 ESD signal still present), torque alarms (F-11 closing over-torque, F-12 opening over-torque), and position alarms (F-07 internal position error, F-14/F-15 no position change detected while closing/opening). Over-torque alarms clear by moving a short distance in the opposite direction, resetting the torque value, or re-powering; "no position change" alarms set a direction inhibit that must be cleared by reset. The full code table and the RJ wiring diagram are below.
Ruiji RJ actuator wiring diagram: terminals 1-8 and 17-25 are standard functions, 9-16 are optional (specified at order)
| Code | Meaning | Actuator response | Clearing |
|---|---|---|---|
| F-05 | 4-20mA control signal lost | Acts per item 7 "signal-loss action" of the working settings; monitor relay de-energized | Restore signal |
| F-06 | Remote open and close signals present simultaneously | Motor stopped | Correct signal |
| F-07 | Internal error detected by position sensing | Motor stopped | Auto-resets after about 1 second |
| F-08 | ESD close operation in progress | — | — |
| F-09 | ESD open operation in progress | — | — |
| F-10 | ESD control signal still present | All other electrical operation (local or remote) ineffective | Withdraw the ESD signal |
| F-11 | Closing torque exceeded setting (close over-torque) | Motor stopped; flag set inhibiting closing direction | Move a short distance toward open / reset close torque setting / re-power |
| F-12 | Opening torque exceeded setting (open over-torque) | Motor stopped; flag set inhibiting opening direction | Move a short distance toward close / reset open torque setting / re-power |
| F-13 | Phase loss detected via position sensing | Motor stopped | Restore three-phase supply |
| F-14 | No position change detected while closing (blockage / electric clutch not engaged / position potentiometer faulty) | Motor stopped; monitor relay de-energized; closing direction inhibited | Reset to clear the inhibit |
| F-15 | No position change detected while opening (blockage / electric clutch not engaged / position potentiometer faulty) | Motor stopped; monitor relay de-energized; opening direction inhibited | Reset to clear the inhibit |
F-05 (lost signal) is the most common: when the 4-20mA command signal is lost, the actuator does not simply stop — it moves according to the preset "signal-loss action" (item 7 of the working settings), while the monitor relay drops out to tell the control system. F-06 means remote open and close commands arrive together, pointing to a miswired or disturbed signal loop. F-13 is phase loss detected through the position sensor, stopping the motor to protect it.
F-08 and F-09 are status indications — an ESD close/open stroke is in progress — not faults. F-10 deserves attention: as long as the ESD signal remains, any other electrical operation, local or remote, is ineffective. This is intentional safety interlocking; withdraw the ESD signal before attempting any other operation.
After an over-torque trip the motor stops and a direction-inhibit flag is set. Any one of three actions clears it: move a short distance in the opposite direction; re-set the over-torque protection value for that direction; or re-power the actuator. If over-torque recurs frequently, check for a jammed valve or a torque setting set too low — do not just reset and force it.
F-07 is an internal position-sensing error that auto-resets after about one second — occasional occurrences can be observed; frequent ones warrant checking the position feedback circuit. F-14/F-15 ("running but no position change") points to three possibilities: a blocked valve, the electric clutch not engaged (manual/electric changeover incomplete), or a faulty position potentiometer. After ruling out mechanical causes, check the potentiometer and counting mechanism. These alarms also de-energize the monitor relay and inhibit the affected direction until reset.
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