B
Here the problem is with a frame 5 twin shaft machine's second stage nozzle with speedtronic Mark V TMR as its control system.
With all the outgoing cables to the servo valve to the field isolated I found a difference in the polarity in the servo commands between <R> ,<S> and <T> cores. The values measured are +10VDC in <R> and <S> cores and -10VDC in <T> core because of this one coil for servo valve is inversed in the field to get the right feedback.
Would like to know from experts the reasons for this difference, because of the above issue the servo current is quite high for all the coils in the Autocal page.
An immediate response would be highly appreciated.
Brian
With all the outgoing cables to the servo valve to the field isolated I found a difference in the polarity in the servo commands between <R> ,<S> and <T> cores. The values measured are +10VDC in <R> and <S> cores and -10VDC in <T> core because of this one coil for servo valve is inversed in the field to get the right feedback.
Would like to know from experts the reasons for this difference, because of the above issue the servo current is quite high for all the coils in the Autocal page.
An immediate response would be highly appreciated.
Brian