Shenzhen Hpmont Technology Co., Ltd. Chapter 5 Function Introduction
HD3N-TC Series Inverter User Manual V1.0 ―55―
5.2.15 F19: Function-boost Parameters
Cooling fan (F19.07 - F19.08)
Ref. code Name Description Setting Range [Default]
F19.07 Fan control 0 - 2 [0]
F19.08 Fan control delay time 0.0 - 600.0 [60.0s]
Defines the control mode of cooling fan. With overheat protection, the fan runs all the time.
0: Auto stop.
• The fan runs all the time when inverter is running. After inverter stops for the time set by F19.08, the
fan continues running if overheat protection is activated.
1: Immediate stop.
• The fan runs all the time when inverter is running and stops when inverter stops.
2: Runs all the time when power on.
• The fan runs all the time when inverter is powered on.
Stall overvoltage function (F19.18 - F19.19)
During running process of inverter, it will encounter DC busbar voltage increase and overvoltage
protection due to load inertia. DC busbar voltage may increase because of sudden increase /
decrease of load during dec process.
Ref. code Name Description Setting Range [Default]
F19.18 Overvoltage suppression gain 0.000 - 1.000 [0.000]
0: Forbid stall overvoltage.
0.001 - 1.000: Enable stall overvoltage.
• When inverter is running, it detects busbar voltage and compares it with F19.19, if busbar voltage >
F19.19, inverter will increase output frequency to avoid large load feedback.
• If F19.18 is too small, it can not effectively supress increase of busbar voltage.
• If F19.18 is too large, output frequency will fluctuate even system oscillates; to avoide this problem,
increase duration of dec process.
Note: If stall overvoltage; asts for more than 1 minute, inverter reports stall overvoltage (E0007), and stops
output.
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