Daikin Sky Air Advance RZA200D7Y1B Service Manual page 88

3 | Components
Service manual
88
a
a Faston connector
4 Connect the Faston connectors to the Inverter Analyzer (SPP number
2238609).
a Inverter checker
b Faston terminal U
c Faston terminal V
d Faston terminal W
5 Turn ON the power of the unit.
6 Activate power transistor check mode by applying field setting 2-18=2.
Result: If all 6 LEDs on inverter checker module blink, then it means that the
transistors on the inverter PCB switch correctly.
7 To exit the power transistor check mode, set 2-18=1.
Result: 2 LEDs on inverter checker module for V phase will indicate the
discharge status of the DC voltage.
8 Wait until the LEDs are OFF before disconnecting U, V and W connections
from the inverter checker.
9 Turn OFF the unit via the circuit breaker.
DANGER: RISK OF ELECTROCUTION
Confirm the rectifier voltage is below 10 V DC before proceeding, see
rectifier voltage" [
10 Disconnect the Inverter Analyzer from the Faston connectors.
11 Connect the Faston connectors to the wire terminals U, V and W of the
compressor.
a
a
4 135].
e 2 LEDs for phase U
f 2 LEDs for phase V
g 2 LEDs for phase W
"To check the
RZA200+250D7Y1B
Sky Air Advance-series
ESIE19-13A – 2020.05