iG5A, product manual - H2flow

8.21 2 Phase PWM driveGroup Display Parameter Name Setting Range Default UnitFunctionGroup 2H48 PWM controlling mode0: NORMAL PWM1: 2 phase PWM1 0 ~ 2 0 Heat loss and leakage current from inverter can be reduced when H48 is set to 1(2 phasePWM) according to the ratio of load.8.22 Cooling fan controlGroup Display Parameter Name Setting Range Default UnitFunctiongroup 2H77 [Cooling fan control] 1 0 ~ 1 0• Control the On/ Off of the cooling fan to cool the Inverter heatsink. When it is set to 0:-. Cooling fan begins to operate when power ON.-. Cooling fan is stopped when inverter main circuit voltage becomes low voltage due to power off. When it is set to 1:-. Cooling fan begins to operate when power is turned ON with operating command ON.-. Cooling fan is stopped when operating command is turned Off with inverter output shut off.-. Cooling fan keeps operating when heat sink temperature exceeds a certain limit regardless ofoperating command.-. Used when frequent Run/Stop or quite stop is required. This may make the cooling fan lifelonger.8.23 Operating mode select when cooling fan trip occursGroup Display Parameter Name Setting Range Default UnitFunctiongroup 2H78[Operating mode whencooling fan trip occurs]- 0 ~ 1 0 -I/O groupI54[Multi-function outputterminal select]18 0 ~ 19 12 -I55 [Multi-function relay select] 18 0 ~ 19 17 -• Select 0 or 1 in H78 code.• If H78 code is set to 0 (continuous operation), alarm can be output in I54 or I55. 0: continuous operation when cooling fan trip occurs.-. Operation is not stopped regardless of cooling fan trip.-. When I54 or I55 is set to 18 (cooling fan fault alarm), fault alarm signal can be output usingMulti-function output terminal or Multi-function relay.8-28