Daikin VRV IV-S RXTQ-TAVJU Series Service Manual page 62

Protection Control
According to the current limit of direct current
Existing DC power limit
requirement.
Limited
OR
15 seconds
No DC power limit
requirement continuously
for 3 minutes.
According to the set value of direct current confirmed inverter second current limit
Set value of inverter secondary current drop
When the outdoor air temperature is 38°C (100.4°F) or more, inverter secondary current is limited to values
falling below the curve shown in the graph below.
Inverter secondary current (A)
9.50
9.00
When the outdoor air temperature is lower than 38°C (100.4°F), the inverter secondary current value is limited to
a maximum of 9.5 A.
49
Not limited
Inverter upper limit frequency:
1-step down from current
compressor frequency
• 10 seconds
Matching
•
frequency
Current step maintained
Inverter upper limit frequency:
1-step up from current
compressor frequency
Range of DC power limit
4.60 4.90 5.20
Compressor stopped
OR • No DC power limit requirement.
Compressor upper limit : Maximum frequency
•
Existing DC power
limit requirement.
Without conditions
Inverter secondary current
5
= – × (DC power – 4.9) + 9.5
9
5.50 5.80
SiUS331604E
DC power
6.10 (kW)
Functions and Control