Shenzhen Hpmont Technology Co., Ltd.
Chapter 6 Function Introduction
HD31 Series User Manual V1.1
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45
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6.2.11
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 [30.0s]
Defines the control mode of cooling fan. With overheat protection, the fan runs all the time.
0: Auto stop.
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The fan runs all the time when HD31 is in running status. After HD31stops 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 HD31 is in running status and stops when HD31stops.
2: Runs all the time when power on.
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The fan runs all the time when HD31 is powered on.
Restart after power failure (F19.16 - F19.17)
When terminal sets running command, this function decides whether HD31 starts automatically or
not and the delay time for restart when HD31 restarts after power failure.
Ref. Code
Name Description
Setting Range [Default]
F19.16
Restart after power failure
0,1 [0]
0:
Disabled.
1: Enabled. In the terminal two-wire control mode and suddenly power failure during running process, when
HD31 is powered on again and the terminal is still enabled, it will wait certain time defined by F19.17 and
then restart with speed tracking mode.
F19.17
Delay time for restart after power failure
0.00 - 10.00 [2.00s]
Protection of stall overvoltage (F19.18 - F19.19)
During Dec, the actual decrease rate of motor may < output frequency due to the load inertia. At this
time, the motor will feed the energy back to HD31, resulting in voltage rise on the DC bus. If no
measure is taken, HD31 will trip due to overvoltage.
Ref. Code
Name Description
Setting Range [Default]
F19.18 Stall
overvoltage
0,1 [1]
0: Disabled. Braking unit and braking resistor are recommended to be installed if F19.18 is set as 0.
1: Enabled. During the Dec, HD31 detects the bus voltage and compares it with F19.19.
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If the detected bus voltage > F19.19, HD31 will stop reducing its output frequency. When detect again, if
the DC bus voltage < F19.19, the Dec continues.
Note: Stall overvoltage > 1 minute, HD31 will alarm E0007 fault, meanwhile stops output.
F19.19
Stall overvoltage point
0 - 1200 [740V]
If the stall overvoltage point is set a little lower, Dec time should be comparatively longer.
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