![Magellan Power MCRII Series Скачать руководство пользователя страница 11](http://html1.mh-extra.com/html/magellan-power/mcrii-series/mcrii-series_operation-and-maintenance-manual_689698011.webp)
OPERATION AND MAINTENANCE MANUAL
SINGLE PHASE MCRII SERIES BATTERY CHARGER
Rev: 1.15
22/08/2018
Doc: MAN-1P_MCRII
Page 11 of 36
Australian Technology
–
Australian Made
64 Bushland Ridge, Bibra Lake, WA 6163 P: +61 8 9434 6621 F: + 61 8 9434 6623
(A2) de-energises if an alarm condition is detected. The common alarm signal also
drives a buzzer located on the Microcontroller Board (A3). The buzzer sounds for any
alarm condition and will stay on for the duration of the alarm. The buzzer can be
muted by depressing the
Mute button on the front panel.
The Microcontroller Board provides voltage and current control references to the
Interface Board via a D/A converter. These references are compared with voltage
and current feedback signals. The output signal from the error amplifier is fed to the
SCR Firing Circuit (A1) where it is compared with a reference ramp synchronised to
the mains. The output of the comparator then controls a high frequency oscillator to
fire the thyristors through a pulse transformer.
All metering functions are generated by the Microcontroller (A3) from filtered inputs
obtained from the Interface Board (A2). These signals are routed through the CPU
’s
analogue inputs and are displayed on the graphical LCD display.