Daikin PE-ADDA200 Service And Installation Manual page 46

ALARM
HEX DEC
A4.2H A4.2 D2D
A4.3H A4.3 communication
No VFD current
A4.4H A4.4
produced
D2D
A4.5H A4.5
communication
Motor
A.5.0.H A5.0
temperatu re
too high
Radiator
A.5.1.H A5.1 temperatu re
too high
A5.2 Capacitors
A.5.2.H
overcurrent
Motor thermal
probe not
A.5.4.H A5.4
connected
Run with
A.5.5.H A5.5 T.radiator too
high
Daikin Applied Europe S.p.A
SERVICE and INSTALLATION MANUAL
Compressor Inverter PE-ADDA200
DESCRIPTION
One slave VFD goes in alarm
Try to understand why the slave is in alarm
The VFD output current, filtered with
Check the connection wires on the motor side, in particular on the
100ms time constant, after a time
terminals. If the motor phase are correctly connected could be a
set in P243 didn't reach the
regulation problem .
minimum value admitted (set in
P244, def. 5% of VFD nominal
value).
Check the cables for drive to drive communication
D2D communication issue
PTC is being used and its Ohm
value (d41) has breached the
safety threshold (P95).
radiator. If -273.15 is displayed, the electrical connection towards
The radiator temperature (d25) is
higher than the maximum
(P118).
The estimated current capacitors
exceed the maximum value admitted
Thermal probe not detected
the presence.
RUN with Trad>P119
Page 46 of 51
CORRECTIVE ACTION
Check the motor and the its PTC thermal probe
Check the temperature reading on d25 and then check the
the radiator heat probe has been interrupted. If the reading is
correct and the motor is overheating, check that the VFD cooling
circuit is intact. Check the fan, its power unit, the vents, and the
air inlet filters on the cabinet. Replace or clean as necessary.
Ensure that the ambient temperature around the VFD is within
the limits permitted by its technical characteristics.
Check parameter P118 is set correctly.
Check for correct cooling of the radiator (refrigerant injection)
Check the capacitors and the working point
Verify the presence of the connection of the thermal probe
(ptc) wired on CN6
Check the radiator temperature (d25). Check for correct
cooling of the radiator (refrigerant injection)
Rev. 0.3
REMARK
Contact FACTORY