1.1 Main functional features
1.1.1 Include 3 sets of main pumps & a set of small pump, it
has multiple controlling mode and meets all kinds of complex
requests of water supply.
1.1.2 It has timing change pump function so that each pump’s
working time is equal, and extend pump’s working life.
1.1.3 It not only has 8 periods of pressure control but arbitrary
pressure setting and time & power on-off function in each
period as well.
1.1.4 Sleep function and auxiliary small pump function, save enery
and reduce the cost, extend machine’s life.
1.1.5 It has negative and positive feedback function, it can be
used in water supply, but also can be used in pump water and keep
1.1.6 It has over-pressure, low water-level, sensor breaks, VFD
fault alarm functions etc.
1.1.7 Feedback can connect to passive remote pressure gauge, active
voltage and current type of transmitter.
1.1.8 Feedback components’ power of 0-24V can be modified, strong
1.1.9 Feedback signals can be selected, it is more convenient to
connect with outer.
1.1.10 Standard of 0-10V output voltage, or it can be change to any
voltage values, more flexible.
1.1.11 If inverter faults, you can choose automatically transffered
frequency to work. (pressure range control)
1.1.12 Relay fault output function is optional.
1.1.13 Strong adaptability, it is suitable to all kinds of
different brand inverters.
1.1.14 Digital signal is adopted photoelectric isolation.
1.1.15 With complete key function.
1.2 Technique Standards
Table 1-1 Technique standards
|Program||Description of Program|
|Input power specification||Single phase 220VAC±15%, 50Hz/60Hz|
|Digital input signal||Level signal,low level is actual,5mA|
|Digital output signal||Max load currentI≤50mA|
|DC output power 1||5V/100mA,10V/50mA,24V/30mA|
|DC output power 2||10V/10mA,|
|Reply’s output signal||Contact rating:250VAC/3A,30VDC/1A|
|Analog input signal||10V/10bit|
|Analog output signal||10V/10bit|
|Humidity||20～90%RH,No condensation of water droplets|
Wenzhou Ziri Electrical Technology Co.,Ltd
main products: VFD (Variable frequency drive; AC drive, frequency
converter); Soft starter; VFD cabinet, Soft starter Cabinet;
Constant voltage water supply controller