Shenzhen Hpmont Technology Co., Ltd.
Chapter 6 Function Introduction
HD31 Series User Manual V1.1
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Ref. Code
Name Description
Setting Range [Default]
P00.13
Breaking delay of pump 1 contacotr
0.000 - 5.000 [0.020s]
P00.14
Touching delay of pump 1 contactor
0.000 - 5.000 [0.200s]
Used during the pump switch process. It is used for the mechanical delay close and open of the contactor.
And more importantly, it's used to avoid the remanence effect. This effect occurs during the process of
variable frequency switching to power frequency. Remanence effect may cause the switch fail.
•
P00.13 is the duration of HD31 from sending a command of free stop (send an instruction to disconnect
HD31 drive contactor simultaneously) to close the normal drive contactor.
•
For pumps over 45kW which require to switch from variable frequency to power frequency, P00.13 can
effectively reduce the switching current and improve successful switching.
•
P00.14 is the duration from sending a close command of inverter drive contactor to the output moment
of HD31. It allows for the mechenical delay of the contactor before starting the next variable frequency
pump.
P00.15
Switch circle of power frequency pump
0 - 9999 [0h]
P00.16
Switch circle of variable frequency pump
0 - 9999 [0h]
Switch between power frequency pumps: When there are one power frequency pump in running status
and one that is waiting, the switch will occur only when the running pump meets P00.15.
Switch between variable frequency pumps: When there are one variable frequency pump in running status
and one that is waiting, the switch will occur only when the running pump meets P00.16.
•
P00.15 and P00.16 = 0, the switch function is valid.
P00.17 Dormancy
enable
0 - 4 [0]
0: No dormancy.
1: Constant pressure dormancy.
2: Specified pressure dormancy.
3: No flow dormancy1.
4: No flow dormancy 2.
Note: F00.21 and F00.22 support specified pressure dormancy (it's dormant when the setting frequency meets
lower limit frequency).
P00.18
Pressure tolerance of dormancy awakening
0.0 - 100.0 [10.0%]
P00.19
Delay time of dormancy awakening
0.0 - 3600.0 [5.0s]
P00.17 = 0: dormant function is invalid.
•
P00.17 = 1: when the system meets the condition of reducing pump, provided that there is no power
frequency pump or variable frequency pump that runs with power frequency, the system enters dormant
status. Mmeanwhile, is will start a dormant pump if there is one in the system.
•
P00.17 = 2: when feedback pressure > setting pr setting pressure × P00.20, and surpass setting
time of P00.22, the system stops all running pumps and enters dormant status.
•
P00.17 = 3: when only one inverter existed in the system, feedback pressure > setting pr setting
pressure × P00.20 and output frequency is smaller than P00.23 for certain time, (if it is starting procedure,
the time will be P00.24, others will be P00.22. if no special requirements, can set P00.22 = P00.24), system
will sleep.
•
P00.17 = 4: when only one inverter existed in the system, feedback pressure > setting pr setting
pressure × P00.20 and output frequency is smaller than no-flow power or output frequency is smaller
than P00.23 for a certain time (P00.22), system will sleep.
In dormant status, when feedback pressure < setting pressure - setting pressure × P00.18, and exceeds
setting time of P00.19, the dormancy is awakened. While if P00.17 = 1 , the dormant pump is disconnected.
When dormant is awakened, HD31 drive pump is preferably added if there is any waited in the system. If
there is power frequency pump waiting, it is added directly.
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