Daikin RQYQ140-180PY1, Руководство по обслуживанию, Страница: 60 / 231

Detailed Control Functions SiBE341001
51 Function
2.6.4 Inverter Protection Control
Inverter current protection control and inverter fin temperature control are performed to prevent tripping due to a
malfunction, or transient inverter overcurrent, and fin temperature increase.
★
In the case of multi-outdoor-unit system, each INV compressor performs these controls in the following sequence.
[Inverter overcurrent protection control]
★
Perform the following control of integrated as well as multi units for each INV compressor.
[Inverter fin temperature control]
★
Perform the following control of integrated as well as multi units for each INV compressor.
INV. Comp.:
1 step down / 10 sec. INV. Comp.:
1 step up / 20 sec.
• INV. current value > 14.7 A
• After 10 sec.
&
INV. current value < 14.7 A
continues for 20 sec.
INV. current value > 16.1A continues for
260 seconds.
Restart standby
(3 times per 60 min. at max.)
Stop due to malfunction
(L8 displayed)
4 times per 60 min.
Normal operation
Inverter current value
>14.7A • Inverter current value < 14.7 A
• INV upper limit frequency = max (210 Hz)
&
INV. Comp.:
1 step down / 10 sec. INV. Comp.:
1 step up / 3 min.
• Tfin > 84˚C
• After 10 sec.
&
Tfin < 81˚C
continues for 3 min.
Tfin > 93˚C
Restart standby
(3 times per 60 min. at max.)
Stop due to malfunction
(L4 displayed)
4 times per 60 min.
Normal operation
Tfin > 84˚C • Tfin < 81˚C
• INV upper limit frequency = max (210 Hz)
&