Rectifier MCSU-4 - Page 62

Installation, Operation and Technical Manual Rectifier Technologies
158-1872-01 58 19-Feb-14
AC Frequency high level; if the AC source frequency is
higher than this value, the MCSU-4 will report an AC Freq
Fail alarm
1ph AC fhi Alarm
55.0Hz
AC frequency low level; if the AC source frequency is lower
than this value, the MCSU-4 will report an AC Freq Fail
alarm
1ph AC flo Alarm
45.0Hz
AC current sensor rating for 1 phase monitor; the rating for
the sensors used (current transformers) must be entered in
this screen.
1ph AC FS Curr.
100A
6.6.4.2 Three Phase AC Monitoring
When the three phase monitoring module is used in the system, the relevant screens are
activated by programming to “On” the 3 ph AC Monitor. If programmed to “Off” neither the
monitoring nor the programmable parameter screens shown below will be displayed.
Entry point to 3 phase AC monitor sub-menu when this
auxiliary is switched On. If it is switched Off the next screen
will be shown and the rest of the menu items will be hidden.
3-ph AC Monitor
Press ENTER
Displayed when this auxiliary is switched Off.
3-ph AC Monitor
Off
Displayed when this auxiliary is switched On.
3-ph AC Monitor
On
AC voltage high level; if any one of the three phases is
higher than the level programmed here, the MCSU-4 will
report an AC Volt Fail alarm;
3ph AC Vhi Alarm
260V
AC voltage low level; if any one of the three phases is lower
than the level programmed here, the MCSU-4 will report an
AC Volt Fail alarm;
3ph AC Vlo Alarm
192V
AC Frequency high level; if the AC source frequency is
higher than this value, the MCSU-4 will report an AC Freq
Fail alarm
3ph AC fhi Alarm
55.0Hz
AC frequency low level; if the AC source frequency is lower
than this value, the MCSU-4 will report an AC Freq Fail
alarm
3ph AC flo Alarm
45.0Hz
AC current sensor rating for 3 phase monitor; the rating for
the sensors used (current transformers) must be entered in
this screen.
3ph AC FS Curr.
100A