Controls And Indicators - Marconi LORAIN RHM800E50 Manual

Before placing the rectifier into ser-
vice. refer to Table 3-l and note the
factory settings of the overvoltage
shutdown circuit and the high and low
settings are acceptable, the rectifier
may be placed into service. If read-
justment of these circuits is required
to meet customer requirements, fol-
low tie appropriate adjustment proce-
dure referenced in Table 3-1 before
placing the rectifier into service.
Adjustment
Overvoltage
Shutdown
Low voltage
Table 3-l. Shutdown and Alarm Levels
4. OPERATfON
4.1 Normal Start and Stoo: The rectifier may be
started or stopped locally by pfacfng the HVSD and
POWER controls to the ON or OFF position, respec-
tively.
4.2 Remote Start and Stoo: If remote starting and
stopping control is .desired. allow the HVSD and
POWER controls on the front panel to remain in fhe ON
position. Applyins or removing positive battery at teimi-
4.3 Startina After AC Power Failure: The rectifier
restarts automatically following commercial AC power
failure if the HVSD and POWER conbuls are in the ON
position and positfive battery is applied to TB3 terminal
16 at the time of power restoration.
Adjustment
Factory
Procedure
Setting
Pam. No.
55VDC
5.10
I
5.6
5.7
unless an autihy power supply is
power supply is a
Procedure 9 in Chapter 7. Tl?OUBLESHOOTlNG. for
a procedure in this event

Controls and Indicators

4.4 The following controls and light emining diode
indicators control the operation and indicate the status
of the rectffier. All controls and indicators are located on
the rectiiier front panel unless otherwise noted.
HVSD Circuit Breaker: This circuit breaker
operates in conjunction with the POWER
I
switch for starting and stopping the rectifier
and normally remains in the ON position.
The circuit breaker contains a trip coil which
is energized in case of a high output voltage
condition, thereby releasing the AC input
contactor which removes AC input power.
POWER Switch: This rocker switch. located
adjacent to the HVSD circuit breaker, is used
to start or stop the rectifier by pfacfng it to
the ON or OFF position, respectively.
connect link inserts into a mating receptacle
located at the upper right portion of the rear
panel inside the rectifier. Access is gained
by opening the meter and control panels.
The link serves as a convenient method for
connecting or disconnecting me battery to or
from the output circuits of the rectifier.
FLOAT/EQUALIZE Switch: When this switch
is fn the FLOAT position, sufficient voltage is
provided to maintain the battery in a fully
charged con&ion while supplying load
demands. When this switch is pfaced in the
EQUALIZE position. the rectifier output volt-
age is increased to equaliie me charge of all
battery cells. Refer to Paa. 4.6.
POWER ON IndicatoC: Illuminates when the
AC input voltage is present and the HVSD
and POWER controls are placed in the ON
position.
Section 4367
failure. the
connected to
If an cuuciliary
connected to TBI. refer to Test
Page 7