OPERATION AND MAINTENANCE MANUAL
THREE PHASE MCRII SERIES BATTERY CHARGER
Rev: 1.6 03/08/2010 Doc: MAN-3P_MCRII_REV1.6.Doc Page 27 of 29
Magellan Powertronics
68 Cocos Drive, Bibra Lake, WA 6136 Tel: 08 93346621 Fax: 08 94346623
7.7 Testing Mains Fail Alarm
Simulate a mains failure by isolating the charger at the AC supply distribution board. After a
delay the
Mains Fail
LED will be lit. Check that the mains fail relay on the Relay board A4
(if fitted) has de-energised and that its contacts (see Schematic Diagram) have changed over.
Also check that the common alarm relay has de-energised and that buzzer is sounding. Ensure
that the buzzer can be muted by pressing the
Alarm Mute
key. The mute function can be reset
by pressing the
Reset
key.
Restore mains.
7.8 Testing DC Low Alarm
Disconnect the battery from the charger. Decrease the Float voltage (See User Adjustable Set
Point Instruction Sheet) to a setting just below the DC Low level. The
DC Low
Alarm will be
indicated on the LCD panel after the user programmable alarm delay has expired. Also check
that the DC Low relay on the Relay board A4 (if fitted) have de-energised and that its
contacts (see Schematic Diagram) have changed over, and check that the Common Alarm
relay on the Interface Card has de-energised and that buzzer is sounding. Ensure that the
buzzer can be muted by pressing the
Alarm Mute
key. The mute function can be reset by
pressing the
Reset
key. Now adjust the Float voltage set point to 5 % above the DC Low
alarm set point and ensure that the alarm can be reset.
Readjust the Float voltage to the level shown on the test report and reconnect the battery.
7.9 Testing DC High Alarm
Disconnect all loads from the charger. Increase the Float voltage (See User Adjustable Set
Point Instruction Sheet) to a setting just above the DC High level. The
DC High
Alarm will
be indicated on the LCD panel after the user programmable alarm delay has expired. Also
check that the DC high relay on the Relay board A4 (if fitted) have de-energised and that its
contacts (see Schematic Diagram) have changed over, and check that the Common Alarm
relay on the Interface Card has de-energised and that buzzer is sounding. Ensure that the
buzzer can be muted by pressing the
Alarm Mute
key. The mute function can be reset by
pressing the
Reset
key. Now adjust the Float voltage set point to 5 % below the DC High
alarm set point and ensure that the alarm can be reset.
Readjust the Float voltage to the level shown on the test report.