Rectifier RT9- 24V - Earth Leakage Detector - MUIB3 and MUIB5 Only

Installation, Operation and Technical Manual Rectifier Technologies
158-1872-01 73 19-Feb-14
Battery 1 Current screen appears after pressing BATT.
Pressing ENTER brings up the next screen.
Battery 1
12A
Battery cell status: Battery 1, Cell 01, cell voltage 2.225V
which is deviating +12% from the average cell voltage of the
battery string.
Battery1 Cell01
2.225V +12%
Battery 1, Cell “mm”, Cell voltage “n.nnnV” which is
deviating “±pp%” from the average cell voltage of the
battery string. Use INC and DEC to view other cells.
Battery1 Cellmm
n.nnnV ±pp%
6.12 Earth Leakage Detector - MUIB3 and MUIB5 only
Note: This function is only available on 110V and 220V versions of MCSU-4 software and
with special software for 24V and 48V systems. The parameters appear after the Batt
Rated xxAh item in the Battery Menu screens.
The MUIB3/5 interface boards have a circuit that is designed to monitor any imbalance in
the positive and negative DC bus voltage with respect to earth. With no external leakage
current paths from the floating system the positive and negative voltage rails should be at
equal potential about earth. When an external leakage current is present, the value of the
current is displayed by the MCSU-4. As well, an alarm level can be programmed as shown
below.
Earth leakage current: display shows the leakage current to
earth in mA;
E Leak I
0.2mA
Earth leakage current alarm threshold: this can be set in the
range 1.0 to 9.5 mA.
E Leak Alm
5.0mA