Addition / Replacement Procedures; Addition Or Replacement Of A Rectifier - Liebert 1500 User Manual

Table 39 Fault diagnosis
Fault symptom
LOP lamp lit
HVSD lamp lit
LVD lamp lit
AUX 1 lamp lit
AUX 2 lamp lit
BOD lamp lit
ACO lamp lit
EQL lamp lit
Rectifiers are not sharing the
load
Meter display is OFF
5.3

Addition / Replacement Procedures

5.3.1

Addition or Replacement of a Rectifier

WARNING
!
PRECAUTIONS SHALL BE TAKEN TO AVOID SERVICE
INTERRUPTIONS
WHEN INSTALLING A RECTIFIER, THE FLOAT AND EQUALIZE
VOLTAGES MUST BE SET ACCORDING TO THE TYPE OF
BATTERIES USED WITH THE SYSTEM. FAILURE TO SET
THESE VOLTAGES PROPERLY MAY RESULT IN BATTERY
UNDERCHARGING OR OVERCHARGING AND/OR BATTERY
DAMAGE.
WARNING
!
PROTECTING PERSONNEL AGAINST ELECTRICAL SHOCKS
INPUT VOLTAGES TO THE RECTIFIERS ARE AT A
DANGEROUS LEVEL. ENSURE THAT THE CIRCUIT BREAKERS
ARE LOCKED IN THE OFF POSITION AT THE AC SERVICE
PANEL BEFORE ATTEMPTING TO WORK ON THE RECTIFIERS.
DANGEROUS VOLTAGES MAY STILL BE PRESENT AT THE
TERMINALS EVEN IF THE RECTIFIERS ARE OFF. USE A
VOLTMETER TO VERIFY FOR THE PRESENCE OF SUCH
VOLTAGES. DO NOT SWITCH CIRCUIT BREAKERS TO ON
UNTIL INSTRUCTED TO DO SO IN THE APPROPRIATE
PROCEDURE.
Add a rectifier as described in the following procedure for a Helios Rectifier 100/48 or as in the
Adding a Helios Rectifier 200I/48 or 200E/48 procedure, whichever is applicable.
40 Maintenance
Loss of one or more phases in the AC supply
High voltage shutdown condition initiated by the controller
Low voltage disconnect condition initiated by the controller
User defined alarm condition
When a Battery Disconnect Unit is present, this lamp will indicate that a
battery disconnect alarm is ongoing.
User defined alarm condition
Low discharge voltage condition
Incorrect BOD level adjustment
ACO switch has been operated during an alarm condition which is still
ongoing
The equalize function has been activated
Incorrect float or equalize adjustment on one of the rectifiers
Sense leads opened on one rectifier
Share mode incorrectly set
Open meter fuse
Meter and display failure
Meter and display rotary switch in the OFF position
Possible causes