Vfd Heatsink High/Low Temperature - Vfdnav Service Software Required; Motor High Temperature - Vfdnav Service Software Required; Dc Bus Under/Over Voltage - Vfdnav Service Software Required - Daikin PE-ADDA200 Service And Installation Manual

9.4 VFD Heatsink High/Low Temperature – VFDNav service software required
VFD heatsink temperature is constantly kept at 40°C by refrigerant cooling. In case of malfunctioning or abnormal
operation, temperature may rise or drop to dangerous values. A warning and a successive alarm protect the
inverter, according to the following thresholds:
Level Description
VFD Rated Temperature
1 VFD Low Temperature
2 VFD High
Warning
3 VFD Start
Temperature
4 VFD High Temperature Alarm

9.5 Motor High Temperature - VFDNav service software required

A PTC sensor immersed in motor windings is connected to the VFD. Depending on PTC resistance value, the
inverter can detect a high motor temperature, or a PTC sensor disconnected.
Level Description
1 VFD PTC threshold
2 VFD PTC warning threshold

9.6 DC Bus Under/Over Voltage - VFDNav service software required

At no load, DC Voltage should be around 1.4*VLL, where VLL is line voltage. This may be reduced to 1.25 during
operation. However, line fluctuation and voltage unbalance may cause further variation of the voltage in the dc
link. Out of these limits, an abnormal condition must be detected. There are different levels of alarms, detailed
below:
Level Description
1 Min DC Bus Voltage
4 DC Bus for forced
mains off
DC Undervoltage
DC Overvoltage
2 Max DC Bus Voltage
*Values set by Microtech III according to line voltage supply settings.
Daikin Applied Europe S.p.A
SERVICE and INSTALLATION MANUAL
Compressor Inverter PE-ADDA200
Tab. 10
Parameter
P159
P234
Temperature P235
Inhibit P119
P118
Tab. 11
Paramet
er
P95
P236
Tab. 12
Paramet Value
er (D24)
P106 400V
P97 430V
P232 470V*
P233 620V*
P107 800V
Page 41 of 51
Value
(D25)
40°C -
-10°C Warning. VFD stopped by MTIII.
50°C Warning.
60°C VFD doesn't start
60°C A5.1 Alarm. VFD Stops.
Value (D41)
A5.0 Alarm. VFD Stops.
.
Action
VFD Stops. A10 Alarm
VFD Stops. If D24 > P106 within 300 ms, VFD is
restarted automatically. Otherwise A10 Alarm
warning. VFD stopped by MTIII.
warning. VFD stopped by MTIII.
VFD Stops. A11 Alarm
Rev. 0.3
Action
Action