OUT-93
DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
U-V
60-150V(AC)
U-W
60-150V(AC)
V-W
60-150V(AC)
P-N
DC 310V
+
~
~
+
~
~
_
~
+
_
~
• Rectifier (1 & 2)
Tester prods
Rectifier
Measurement’s result
Resistance (direct measurement)
Resistance (inverted prods)
Infinity (
h
)
About 500
Ω
About 500
Ω
Infinity (
h
)
Infinity (
h
)
Infinity (
h
)
_
Inverter Module
Measurement’s result
Voltage values on Rectifier (1 & 2), on Inverter Module and other components
a) Rectifier (1 & 2). Input: 220-230V (AC). Output: 310V (AC)
b) Inverter Module (3-Phase). Terminals U, V, W: see Table below.
Resistance values on Rectifier (1 & 2)
a) By using a Tester, carry out the measurements on both Rectifiers, as it is shown in the Table below. Check
if detected values correspond to reference values.
b) If LED on each Rectifier does not light up, the component is faulty (it must be replaced).
c) Photo-couplers PC817, PC851. Control side: +5V. AC side: < 24V AC.
d) Terminals S (signal line) and N (Power supply phase) on terminal blocks: voltage variable between 0~24V.
