HID312 Series High Performance Variable Frequency Drive for Water Supply System
frequency range: 5.5kw-315kw/380v/660v
Product Introduction
HID312 series VFD is a kind of constant pressure variable frequency drive which combine frequency changing system and intellegent water supply system and which is specialized in water supply system. It includes normal live water supply system and fire fighting water supply system and could achieve the controlling of as many as 4 sets of motors through the setting up of various functions like frequency variability, power frequency, sleeping of each VFD.
Application Field
Water supply system for living buildings
Water supply system for fire fighting emergency
Constant pressure oil supply system
Function Features
1. Be equipped with the function of real-time clock, thus could meet free constant pressure water supply demand, saving water and power.
2. Various pumps rotate in a regular period, which could prevent pump's rusting or working too long, enhancing service life of equipment.
3. Each pump have the function of recording and handling problems by quiting working mode automatically without affecting other pumps, thus convinent for maintaining.
4. Flexible logical control of accumulating and decreasing pumps and PID control algorithm ensure a smooth switch among the pumps.
5. Manual soft starting system and inspection functions make sure that the clients could check the working states of pumps.
6. Improved motor protecting function could set up the rated current for as many as 7 sets of pumps.
Technical Parameters
Items | Specification | |
Control Performance | Frequency control range | 0~300Hz |
Output frequency precision | 0.01Hz | |
Frequency resolution preset | Digital set: 0.01Hz Analog set: AD Conversion precision for 1‰ | |
Control method | Open loop V/F control | |
Torque boost | Manual torque adjustable; auto full frequency torque boost | |
Start torque | 1Hz-150% rated torque | |
Over load capacity | G:150% rated current 60s;180% rated current 1s | |
P:120%rated current 60s;150%rated current 1s | ||
Textile swing frequency control | A variety of triangular wave frequency control function | |
Fixed length control | Rated length control | |
Timing Control | Set time range | |
Function Description | Acceleration-deceleration curve | Straight line or S line acceleration-deceleration; four kinds of acceleration-deceleration time; 0.1~3200.0s constant adjustment |
Point start function | Point start frequency: 0.00~50.00hz; point start acceleration-deceleration: 0.1~3200.0s constant adjustment | |
Standard function | Multi-point V/F wave; manual toque boost, jump frequency; carrier frequency auto adjustment; DC brake; DC stop; self start after voltage recover; auto fault reset; simple one with two water-supplying; 16 digital speed running; simple PLC operation; swing frequency for textile; close loop PID adjustment control | |
Control features | Auto torque boost; auto speed difference compensation; auto stable output voltage; speed track start; acceleration over current hold-up; constant speed over current frequency reduction; deceleration over voltage hold-up; auto energy saving operation | |
Operation order channel | 3 control modes:keypad ,terminal, series communication control | |
Frequency source option | Digital set, analog voltage set, analog current set, series communication set, available to switch | |
Input terminal | 6 digital input terminals, extendable to 10 loops,40 custom function, compatible with PNP or NPN input; one of them can do high frequency pulse input (0~50kHz); 2 analog input terminals, receive voltage signal 0-10V or current signal 0-20mA; extendable to 3 loops. 0.4~1.5kW without expansion interface | |
Output terminal | 2 open-collector output, 22 custom functions; extendable to 3 loops 2 relay output, 22 custom function; extendable to 3 loops 2 analog output, 13 custom function; can output voltage signal 0-10V or current signal 0-20mA 1.1.1 1.1.2 1 high frequency pulse output (0 ~ 50kHz), 13 custom functions 1.1.3 0.4~1.5kW without expansion interface | |
Protection function | Over voltage protection; under voltage protection; over current protection; modular protection; radiator over temperature protection; motor over load protection; external fault protection; input power abnormal; output phase loss ;EEPROM abnormal; relay abnormal | |
Operation ambient | Protection level | IP20 |
Installation | Well installed in cabinet, no dust, no corrosive gas, no flammable gas, no oil fog, no steam, no drop water, no direct sun light | |
Ambient temperature | -10°C~+40°C(derating use if ambient temperature higher than 40 degree, maximum is 50 degree. 1% derating every 1 degree higher than 40 degree. | |
Altitude | 0~2000 m, derating use above 1000 m, rated output current reduce 1% every 100 m higher | |
Relative humidity | 20%~90%RH( no condensation) | |
Vibration | <5.8m/s^2(0.6g) | |
Stock temperature | -25°C~+65°C | |
