ARE Series Chargers
RS-759, Rev. 11
3-3
TROUBLESHOOTING CHART continue
Problem
Possible Causes
Solution
G. Excessive electrical noise or
ripple.
1. Loose filter connections.
a.
Check wiring and bus bars for loose
or corroded connections.
2. Open filter capacitor.
a.
Check filter capacitors.
3. Open power diode.
a.
Check power diodes.
4. DC cable routing (excessive noise).
a.
Check broken cable ties.
5. Improperly sized battery.
a.
Check battery rating.
H. Oscillations or poor regulation.
1. Loose connection.
a.
Inspect circuit boards, connectors,
and wiring for loose contacts.
2. Defective triac.
a.
Replace triac.
3. Component failure in control board.
a.
Replace control board.
4. Open power diode.
a.
Check power diodes. Replace as
required.
5. Resonant capacitor not grounded.
a.
Check AC capacitor case to ground
with ohmmeter.
I. Low output current.
Note:
Panel AM may be open or
defective. Check with portable
meter.
1. Loose connection.
a. Inspect wiring.
2. Open power diode.
a.
Check power rectifier diodes.
Replace as required.
3. Unit in current limit.
a.
Current limit control improperly
set.
b.
Defective control board.
Replace.
J. Acoustic noise.
1. Loose laminations.
a.
Check air gap areas of power
transformer and control reactor
with insulated screwdriver.
2. Cabinet vibration.
a. Check welds and bolted joints.
3.3
CHECKING COMPONENTS
Caution:
Before attempting any of the following tests, be sure to disconnect both the AC power and the
battery, and discharge filter and resonant capacitors, if required.
NOTE: Replace defective components with exact duplicates only. See Section 4, Parts List.
FUSES:
Fuses should be removed and then checked with an ohmmeter. A good fuse will show zero
resistance; and open fuse will show infinite resistance. Any ohmmeter scale can be used when checking
fuses.
DIODES:
First, remove at least one connection to the diode, and then check using an ohmmeter to
measure resistance, first cathode to anode and then anode to cathode. A good diode will show low
resistance one way and very high resistance the other way. A shorted diode will show no or very low
resistance both ways. An open diode will show a very high resistance both ways. Suggested scales for
these checks are either X10 or X100.
CAPACITORS:
First, isolate capacitors and then check with an ohmmeter. Proper scale range will vary
as to type of meter and capacitor size. Start with highest range and work down. Reverse leads each time.
If the capacitor is good, it will show a deflection towards zero resistance initially, then a steady increase
toward infinite resistance. If, however, the capacitor is shorted, it will show zero resistance. If the
capacitor is open, it will read infinite resistance.
RESONANT TRIAC:
Remove one triac connection, being careful not to remove gate wire and check
with an ohmmeter. A good triac will indicate high resistance in both directions. To check for turn on of
the triac, do the following: with one lead still disconnect, connect the positive lead of an analog ohmmeter
to the anode of the triac and the negative lead to the cathode. The triac should read open or high
resistance. Connect the gate to the anode with a jumper. A low resistance reading indicates that the triac
is turning on.
Содержание ARE Series
Страница 27: ...ARE Series Chargers RS 759 Rev 11 4 8 FIGURE 4 3 MBC 3420B CABINET ASSEMBLY 24 CABINET 208 240 480 VOLT INPUT...
Страница 39: ...ARE Series Chargers RS 759 Rev 11 4 20 FIGURE 4 11 CONNECTION DIAGRAM FOR ARE 24 INCH CABINET 208 240 480 VAC...
Страница 40: ...ARE Series Chargers RS 759 Rev 11 4 21 FIGURE 4 12 CONNECTION DIAGRAM FOR ARE 30 INCH CABINET 120 208 240 VAC...
Страница 41: ...ARE Series Chargers RS 759 Rev 11 4 22 FIGURE 4 13 CONNECTION DIAGRAM FOR ARE 30 INCH CABINET 208 240 480 VAC...
Страница 42: ...ARE Series Chargers RS 759 Rev 11 4 23 FIGURE 4 14 CONNECTION DIAGRAM 36 INCH CABINET 120 208 240 VAC...
Страница 43: ...ARE Series Chargers RS 759 Rev 11 4 24 FIGURE 4 15 CONNECTION DIAGRAM FOR ARE 36 INCH CABINET 208 240 480 VAC...
Страница 45: ...ARE Series Chargers RS 759 Rev 11 4 26 FIGURE 4 17 SCHEMATIC DIAGRAM FOR ARE 24 INCH CABINET 208 240 480 VAC...
Страница 46: ...ARE Series Chargers RS 759 Rev 11 4 27 FIGURE 4 18 SCHEMATIC DIAGRAM FOR ARE 30 INCH CABINET 120 208 240VAC...
Страница 47: ...ARE Series Chargers RS 759 Rev 11 4 28 FIGURE 4 19 SCHEMATIC DIAGRAM FOR ARE 30 INCH CABINET 208 240 480VAC...
Страница 48: ...ARE Series Chargers RS 759 Rev 11 4 29 FIGURE 4 20 SCHEMATIC DIAGRAM FOR ARE 36 INCH CABINET 120 208 240 VAC...
Страница 49: ...ARE Series Chargers RS 759 Rev 11 4 30 FIGURE 4 21 SCHEMATIC DIAGRAM FOR ARE 36 INCH CABINET 208 240 480 VAC...
Страница 51: ...ARE Series Chargers RS 759 Rev 11 4 32 FIGURE 4 22 SCHEMATIC DIAGRAM FOR ARE CONTROL BOARD...
Страница 68: ...ARE Series Chargers RS 759 Rev 11 5 15 FIGURE 5 14 BLOCKING DIODE ASSEMBLY...
