Regada Rematic STR 1PA, Installation, Service And Maintenance Instructions, Page: 39 / 65

STR 1PA, STR 2PA 37
•
After 6 months from putting of EA into operation and once a year it is recommended to
check
tightening of fixing screws between the EA and the valve. (Tighten the screws with the cross system.)
•
While connecting and disconnecting of the EA check the tightness of cable glands –
those with damaged sealings should be replaced by new ones of the approved type!
•
Keep the EA clean and take care about removing impurities and dust. The cleaning has
to be performed regularly according to the operation possibilities and requirements.
4.3 Troubleshooting
At failure of power supply the EA stops in the position where it was before the failure. If needed
the EA can be set only with the manual control (the hand wheel). After restoration of power the EA is
prepared for operation.
In case of failure of any element of the EA it can be changed by a new one. Entrust the change
to a service centre.
In case of an EA failure, which cannot be eliminated directly in operation, follow instructions for
under-guaranty and after-guaranty service.
Note: If the EA requires dismantling follow the chapter "Dismantling".
The EA electronics makes possible to identify some failures of the electric actuator. The control
unit blicking LED ERROR indicates the failure (Fig. 6) or the error is displayed on the LED (Fig. 1) , or
the LCD display (Fig. 7) . The list of errors and warnings and the way for identifying a given error as
well are presented in the separate attachment No 74 1053 02.
The list of errors and warnings compiled by the producer is presented in
table 4 . A change to the list of
errors and warnings in the EA is only possible within a service intervention, through the program
installed in a PC.