KBR multicomp F144-MS-1V1C1TI6DO6RO-3 - Page 37

Rev. 1.00
22586_EDEBDA0253-0318-1_EN
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KBR multicomp F144-3 6DO/6RODescription of the display window
 Switching interval (default setting for thyristor stages 50 msec, setting range
50 to 9999 msec, for contactor stages 8 sec, setting range 0 to 10 sec). This val-
ue de nes the time the controller is idle between two switching operations.
 Alarm cos phi (default setting ind. 0.92, setting range ind. 0.70 to 1.0): This
value is connected to the message PFC too small. If this value is not reached
after the alarm delay has elapsed, despite all stages being switched on, the
message PFC too small is displayed.
 Attenuation Q
miss
(default setting 0, setting range 0 to 9): This value de nes
the attenuation of the display and control behavior to prevent rapid parame-
ter changes if compensation power is missing.
 Attenuation U (default setting 0, setting range 0 to 9): This value de nes the
display attenuation to prevent rapid parameter changes of the measuring
voltage.
 Attenuation I (default setting 0, setting range 0 to 9): This value de nes the
display attenuation to prevent rapid parameter changes of the measuring
current.
NOTE
Due to the default settings on the discharge time (20ms) and switching interval
(50ms) for thyristor stages, an attenuation set later on (default setting 0) does
not have any e ect. The attenuation value set is only applied if the capacitor
discharge time and the switching interval of the stages is greater than100 ms.