hpmont HD31 Series User manual

V1.6 2021.03
HD31 Series
Aqua Inverter
User Manual
HD31 Series Aqua Inverter

FOREWORD
Thank you for purchasing HD31 Series AQUA Inverter Manufactured by Shenzhen
Hpmont Technology Co., Ltd.
This user manual describes how to use HD31 series inverters and their installation
wiring, parameter setting, troubleshooting and daily maintenance etc.
Before using the product, please read through this user manual carefully. In addition,
please do not use this product until you have fully understood safety precautions.
Note:
Preserve this manual for future.
Due to product upgrade or specification change, and for the purpose of
improving convenience and accuracy of this manual, this manual’s contents may
be reveised.
If you need the user manual due to damage, loss or other reasons, please contact
with the regional distributor of our company or directly contact our company
Technical Service Center.
The user should read this manual carefully when using it for the first time.
If you still have some problems during use, please contact our company Technical
Service Center.
Email address: [e-mail]

Connectoion with Peripheral Devices
Three-phase AC power supply
MCCB
Contactor
AC input reactor
(accessory)
EMI filter
EMI filter
AC output reactor
(accessory)
Motor
HD31
Braking resistor
(accessory)
DC reactor
(accessory)

Version and Revision Records
Time: 2021/3
Version: V1.6
Revised Chapter Revised Contents
Chapter 2 • Add P05.06 (water supply fault status display and clearing)

CONTENTS
Chapter 1 Safety Information and Precautions.................................................................................................... 1
1.1 Safety Definition ............................................................................................................................... 1
1.2 About Motor and Load..................................................................................................................... 1
1.3 About HD31 ....................................................................................................................................... 2
Chapter 2 Product Information............................................................................................................................... 5
2.1 Model.................................................................................................................................................. 5
2.2 Nameplate.......................................................................................................................................... 5
2.3 Rated Value ........................................................................................................................................ 6
2.4 Technical Data ................................................................................................................................... 6
2.5 Parts of Inverter................................................................................................................................. 8
Chapter 3 Mechanical Installation.......................................................................................................................... 9
3.1 Precautions ........................................................................................................................................ 9
3.2 Installation Site Requirement......................................................................................................... 9
3.3 Installation Direction and Space Requirements ........................................................................ 10
3.4 Dimensions and Weight................................................................................................................. 11
3.5 Install and Dismantle Keypad....................................................................................................... 12
3.6 Dismantle Plastic Cover ................................................................................................................. 13
Chapter 4 Electrical Installation............................................................................................................................ 15
4.1 Precautions ...................................................................................................................................... 15
4.2 Peripheral Accessories Selection.................................................................................................. 15
4.2.1 Wiring Specifications of Input and Output .......................................................................................15
4.2.2 Power Terminal Lug................................................................................................................................... 16
4.3 Main Circuit Terminals and Wiring ............................................................................................... 16
4.3.1 Supply and Motor Terminal.................................................................................................................... 17
4.3.2 Supply and Motor Connection.............................................................................................................. 18
4.4 Control Board and I/O Board......................................................................................................... 19
4.4.1 Control Board Terminal ............................................................................................................................20
4.4.2 I/O Board Terminal..................................................................................................................................... 21
4.4.3 Modbus Communication Terminal......................................................................................................21
4.4.4 Jumper ........................................................................................................................................................... 22
Chapter 5 Keypad.................................................................................................................................................... 23
Chapter 6 Function Introduction.......................................................................................................................... 25
6.1 Group d: Display Parameters ........................................................................................................ 26

6.1.1 d00: Status Display Parameters.............................................................................................................26
6.1.2 d02: Water Supply System Status.........................................................................................................29
6.2 Group F: General Parameters........................................................................................................ 30
6.2.1 F00: Basic Parameters ...............................................................................................................................30
6.2.2 F01: Protection of Parameters ............................................................................................................... 35
6.2.3 F02: Run/Stop Control Parameters....................................................................................................... 36
6.2.4 F03: Acc. and Dec. Parameters...............................................................................................................39
6.2.5 F04: Process PID Control.......................................................................................................................... 41
6.2.6 F05: External Setting Curve Parameters............................................................................................. 44
6.2.7 F08: Asyn. Motor Parameters ................................................................................................................. 46
6.2.8 F09: V/f Control Parameters....................................................................................................................48
6.2.9 F13: Asyn. Motor 2 Parameters.............................................................................................................. 50
6.2.10 F15: Digital I/O Terminal Parameters.................................................................................................52
6.2.11 F16: Analog I/O Terminal Parameters ...............................................................................................58
6.2.12 F17: SCI Communication Parameters ...............................................................................................60
6.2.13 F18: Display Control Parameters ........................................................................................................61
6.2.14 F19: Function-boost Parameters ........................................................................................................63
6.2.15 F20: Fault Protection Parameters ....................................................................................................... 71
6.2.16 F23: PWM Control Parameters.............................................................................................................75
6.3 Group P: Special Parameter for Multi-pump Water Supply ..................................................... 76
6.3.1 P00: Water Supply Logic Parameter.....................................................................................................76
6.3.2 P01: Water Supply Pump Parameter.................................................................................................... 80
6.3.3 P02: Water Supply PID Parameter.........................................................................................................82
6.3.4 P03: Water Supply AIO Function Parameter .....................................................................................84
6.3.5 P04: Water Supply Fault Protection Parameter................................................................................86
6.3.6 P05: Water Supply Time Parameter......................................................................................................87
Chapter 7 Application Reference.......................................................................................................................... 89
7.1 Take One-to-Six Inverter as an Example...................................................................................... 89
7.2 Debug for Switching between VF and PF ................................................................................... 92
Chapter 8 Troubleshooting ................................................................................................................................... 93
Chapter 9 Accessories............................................................................................................................................. 97
9.1 Keypad Installation Assembly ...................................................................................................... 97
9.2 Reactor Selection............................................................................................................................ 97
9.3 Braking Resistor and Braking Unit ............................................................................................... 98

Appendix A Parameters ......................................................................................................................................... 99
Appendix B Modbus Communication Protocol ...............................................................................................137

1
Safety Information and Precautions
2
Product Information
3
Mechanical Installation
Electrical Installation
5
Keypad
6
Function Introduction
7
Application Reference
8
Troubleshooting
9
Accessories
A
Parameters
4
B
Modbus Communication Protocol

Shenzhen Hpmont Technology Co., Ltd. Chapter 1 Safety Information and Precautions
HD31 Series User Manual V1.6 - 1 -
Chapter 1 Safety Information and Precautions
1.1 Safety Definition
Danger: A Danger contains information which is critical for avoiding safety hazard.
Warning: A Warning contains information which is essential for avoiding a risk of damage to products or other
equipements.
Note: A Note contains information which helps to ensure correct operation of the product.
1.2 About Motor and Load
Compared to the Industrial Frequency Running
The HD31 series inverters are voltage-type frequency inverters and their output is PWM wave with
certain harmonic wave. Therefore, the temperature, noise and vibration of the motor will be a little
higher than that at industrial frequency running.
Constant Torque at Low-speed Running
When HD31 drives a standard motor at low-speed running for a long time, the output torque rating
will become worse due to the motor cooling is less effective. In that case, we suggest to choose
variable frequency motor.
Thermal Protection of Motor
When choosing adaptive motor, HD31 can effectively implement thermal protection of motor.
Otherwise it must adjust the motor protection parameters or other protection measures to ensure that
the motor is at a safe and reliable running.
Running above the Rated Frequency of Motor
If the motor runs exceeding its rated frequency, the noise will increase. Pay attention to the motor
vibration as well as ensure the motor bearings and mechanical devices to meet the requirement of
running speed range.
Lubrication of Mechanical Devices
At long time low-speed running, provide periodical lubrication maintenance for the mechanical
devices such as gear box and gear motor and so on to make sure the drive results meet the site need.
Danger
Warning
Note
1

Chapter 1 Safety Information and Precautions Shenzhen Hpmont Technology Co., Ltd.
- 2 - HD31 Series User Manual V1.6
Mechanical Resonance Point of Load
Set the skip frequency (F05.17 - F05.19) to avoid the load device or the motor mechanical resonance
point.
Start and Stop HD31
User should use the control terminal to start and stop HD31.
It is strictly forbidden to use contactor or other switches on the input side of HD31 to start and stop
directly, or it will damage the device.
Check the Insulation of the Motor
After the motor is used for the first time or stored for a long time, the insulation of the motor needs to
be checked. Poor insulation can damage HD31.
Note:
Use a 500V Mega-Ohm-Meter to test and the insulation resistance must be higher than 5Mohm.
Load and Negative Torque
In the case of increasing load, negative torque often occurs. If HD31 is prone to over-current or over-
voltage fault trip, you should consider setting appropriate brake unit parameters.
Requirement for Leakage Current Protector RCD
Since the device generates high leakage current which goes through the protective grounding
conductor, please install B type leakage current protector RCD on one side of the power supply.
When choosing RCD, the user needs to consider the ground leakage current that may occur during
transient and steady states during startup and operation. It is recommended to choose either special
RCD that can suppress the higher harmonics, or general RCD with a large residual aftercurrent.
Warning for Ground Mass Leakage Current
The device generates mass leakage current, so users need to confirm the reliable grounding before
connect to the power supply. The grounding should comply with the local relative IEC standard.
1.3 About HD31
No Capacitor or Varistor on the Output Side
Since HD31 output is PWM wave, it is strictly forbidden to connect capacitor for improving the power
factor or varistor for lightning protection to the output terminals so as to avoid HD31 fault trip or
component damage.
Contactors and Circuit Breakers Connected to the Output of HD31
If circuit breaker or contactor needs to be connected between HD31 and the motor, be sure to operate
these circuit breakers or contactor when HD31 has no output, so as to avoid any damage to HD31.
Running Voltage
HD31 is prohibited to be used beyond the specified range of running voltage. If needed, please use
suitable voltage regulation device to change the voltage.

Shenzhen Hpmont Technology Co., Ltd. Chapter 1 Safety Information and Precautions
HD31 Series User Manual V1.6 - 3 -
Capacitor Energy Storage
When the AC power supply is cut off, capacitor of HD31 sustains deadly power for a while. So to
disassemble HD31 that is powered, please cut off the AC power supply for more than 10 minutes,
confirm the internal charge indicator is off and the voltage between (+) and (-) of the main circuit
terminals is below 36V.
Generally, the internal circuit enables the capacitor to discharge. However, the discharge may fail in
some exceptions. In these cases, users need to consult Hpmont or our regional distributor.
Lightning Surge Protection
HD31 internal design has lightning surge overcurrent protection circuit, and has certain self-protection
capacity against the lightning.
Altitude and Derating
In area where altitude exceeds 1000 meters, HD31 should be derated since the heatsink efficiency will
be reduced because of the thin air.
For every 100 meters of altitude increase, the output current rating is reduced by 1%. I.e. for the
altitude of 4000m, derated rate is 30% for rated current of HD31. Figure 1-1 is the derating curve of
rated current and the altitude.
Figure 1-1 Derating curve of rated current and altitude
70%
100%
1000m 4000m
Altitude
Rated current of HD31
1

Shenzhen Hpmont Technology Co., Ltd. Chapter 2 Product Information
HD31 Series User Manual V1.6 - 5 -
Chapter 2 Product Information
2.1 Model
2.2 Nameplate
HD31-4T7P5-P
Product Series
Power Supply Voltage
380 - 460VAC = 4
Three-phase input = T
Input Phase
Power
Fan and pump = P
Product Type
FWD LOCK
REV ALM LO/RE
HZ AVRPM %
MODEL: HD31-4T7P5P
7.5kW
POWER:
3PH 380-460V 19A 50/60Hz
INPUT:
11kVA 0-460V 17A 0-400Hz
OUTPUT:
1.00
Version:
Product model
Motor power
Input specification
Output specification
Software version
Serial number
2

Chapter 2 Product Information Shenzhen Hpmont Technology Co., Ltd.
- 6 - HD31 Series User Manual V1.6
2.3 Rated Value
Refer to section 3.4 Dimensions and Weight (on page 11) for size information.
Model Motor
(kW)
Rated Capacity
(kVA)
Rated Input
Current (A)
Rated Output
Current (A) Size
HD31-4T2P2P 2.2 3.4 7.3 5.1 F2
HD31-4T3P7P 3.7 5.9 11.9 9.0 F2
HD31-4T5P5P 5.5 8.5 15 13 F2
HD31-4T7P5P 7.5 11 19 17 F2
HD31-4T011P 11 16 28 25 F3
HD31-4T015P 15 21 35 32 F3
HD31-4T018P 18.5 24 39 37 F4
HD31-4T022P 22 30 47 45 F4
HD31-4T030P 30 39 62 60 F5
HD31-4T037P 37 49 77 75 F5
HD31-4T045P 45 59 92 90 F6
HD31-4T055P 55 72 113 110 F6
HD31-4T075P 75 100 156 152 F6
HD31-4T090P 90 116 180 176 F7
HD31-4T110P 110 138 214 210 F7
HD31-4T132P 132 167 256 253 F7
2.4 Technical Data
Electrical
Input voltage Three-phase: 380 - 460V, 50/60Hz
Fluctuating within ±10%, imbalance rate <3%
Input frequency 50/60Hz ± 5%
Output voltage 0 - input voltage
Output frequency 0.00 - 400.00Hz
Performance
Control mode V/f, SVC
Max. current 120% rated output current for 5 minutes
135% rated output current for 35 seconds
Run command Keypad; Terminals; Communication
Speed setting Digital; Analog; Communication
Speed resulotion Digital setting: 0.01Hz
Analog setting: 0.1% × Max. frequency
SVC
Speed control accuracy: ±0.5%
Speed control range: 1:100
Torque control response <200ms
Start torque: 180% rated torque / 0.5Hz
Torque control accuracy ±5%

Shenzhen Hpmont Technology Co., Ltd. Chapter 2 Product Information
HD31 Series User Manual V1.6 - 7 -
Protection Functions
Stall overvoltage Bus voltage can auto-control against overvoltage fault
Auto-limit current
protection Output current can auto-limit against overcurrent fault
Overload pre-alarm and
alarm Overload early pre-alarm and protect
Load loss protection Load loss alarm function
Input and output voltage
phase loss protection Input and output voltage phase loss auto-detect and alarm function
Braking fault protection Braking detection and alarming function
PID commands and
feedback loss detection PID can auto-identify whether loss the setting and feedback or the alarm function
Power output grounding
fault protection Power output grounding fault protection is valid
Power output short circuit
protection Power output short circuit protection is valid
Input and Output
Analog power supply +10V, Max. current is 100mA
Digital power supply +24V, Max. current is 200mA
Analog input
AI1 (control board): Voltage 0 - 10V
AI2 (control board): -10 - +10V/0 - 20mA (selectable voltage/current)
AI3, AI4 (I/O board): -10 - +10V/0 - 20mA (selectable voltage/current)
Analog output AO1, AO2: 0 - 10V/0 - 20mA (selectable voltage/current)
Digital input DI1 - DI6 (control board); DI7 - DI9 (I/O board)
DI6 can be selected for high-frequency input
Digital output DO1, DO2
DO2 can be selected for high-frequency output
Relay output R1A/R1B/R1C (control board), R2A/R2C - R10A/R10C (I/O board)
Contact rating: 250VAC/3A or 30VDC/1A
Keypad
LED display
5 LEDs display, 5 unit indicators, 5 status indicators
Setting frequency, output frequency, output voltage, output current, motor speed,
output torque, switching value terminal, status parameter, program menu parameter
and fault code etc.
LCD display Optional [HD-LCD], display contents in Chinese or English
Parameter copy Both LED and LCD keypad can achieve quick parameter copy
Communication
SCI communication RS-485 interface; Terminal
2

Chapter 2 Product Information Shenzhen Hpmont Technology Co., Ltd.
- 8 - HD31 Series User Manual V1.6
Environment
Run temperature
-10 - +40℃, Max. 50℃, air temperature fluctuation is less than 0.5℃/min
The derating value of the output current of HD31 shall be 2% for each degree
centigrade above 40℃. Max. allowed temperature is 50℃
Storage temperature -40 - +70℃
Applicable place Indoor, preventing from direct sunlight, no dust, corrosive, flammable gases, oil mist,
water vaper, dripping or salt etc.
Altitude Less than 1000 meters, otherwise should be derating use
Humidity Less than 95%RH, non-condensing
Vibration resistance It is 3.5m/s2in 2 - 9Hz, it is 10m/s2(IEC60721-3-3) in 9 - 200Hz
Protection class IP20
Pollution level Level 2 (dry, non conducting dust pollution)
Accessories
Bus communication
PROFIBUS option (HDFB-PROFIBUS-DP)
Device Net option (HDFB-Device Net)
CAN option (HDFB-CAN)
About keypad
LCD keypad (HD-LCD)
Mounting base to keypad (HD-KMB)
1m/2m/3m/6m extension cable to keypad (HD-CAB-1M/2M/3M/6M)
Power unit Dynamic braking unit (HDBU)
2.5 Parts of Inverter
Fan cover
Keypad
Upper cover
Lower cover
Mounting hole
Middle enclosure
Bottom enclosure
Certification
Nameplate
Size F2 - F4 Size F5 - F7
Connection holes of power terminal
Connection holes of control terminal

Shenzhen Hpmont Technology Co., Ltd. Chapter 3 Mechanical Installation
HD31 Series User Manual V1.6 - 9 -
Chapter 3 Mechanical Installation
3.1 Precautions
• Do not install if HD31 is incomplete or impaired.
• When conveying HD31, please employ suitable tools according to its weight. Avoid scratching the product.
Caution: Rolling and falling may cause injury.
• Make sure that HD31 is far from explosive and flammable things.
• Do not do wiring operation until power supply is cut off for more than 10 minutes, the internal charge indicator of
HD31 is off and the voltage between (+) and (-) of the main circuit terminals is below 36V.
• It is required not only carry the keypad and the cover but also bottom enclosure of HD31.
• Do not let wires, screws or residues fall into HD31 when installing.
3.2 Installation Site Requirement
Ensure the Installation Site Meets the Following Requirements:
•Do not install in a place exposed to direct sunlight, humidity, or water droplets;
•Do not install in flammable, explosive, corrosive gas and liquid places;
•Do not install in places with oily dust, fiber and metal powder;
•Be vertical installed on fire-retardant material with a strong support;
•Make sure adequate cooling space for HD31 so as to keep ambient temperature between
-10 - +40℃;
•Install at where the vibration is 3.5m/s2in 2 - 9Hz, 10m/s2in 9 - 200Hz (IEC60721-3-3);
•Install at where the humidity is less than 95%RH and non-condensing location;
•Protection level of HD31 is IP20 and pollution level is 2 (dry, non-conducting dust pollution).
Note:
1. It needs derating use if running temperature exceeds 40
℃
. The derating value of the output current of
HD31 shall be 2% for each degree centigrade. Max. allowed temperature is 50
℃
.
2. Keep ambient temperature between -10 - +40
℃
. It can improve the running performance if install at
location with good ventilation or cooling devices.
Danger
Warning
3