DAB PUMPS PWM 203, Instruction For Installation And Maintenance

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ENGLISH
67
1. GENERAL INFORMATION
Inverter for three-phase pump designed for the pressurisation of hydraulic systems and also optionally for flow measurement .
The inverter maintains the pressure value in a hydraulic circuit constant by varying the rpm of the electric pump; the inverter is
switched on and off by sesnors according to hydraulic requirements.
There are a wide range of operating modes and optional accessories. By means of the various possible settings and availability of
configurable inputs and outputs, operation of the inverter can be adapted to meet the requirements of all systems. 6 SIGNIFICATO
DEI SINGOLI PARAMETRI specifies the various settable values: pressure, protection cut-out trip, frequency of rotation, etc.
In this manual the pump will also be referred to in the abbreviated form "inverter", when dealing with common characteristics.
1.1 Applications
Possible applications include:
- homes
- apartment blocks
- camp sites
-
swimming pools
- farms
- well water supply
- irrigation for greenhouses, gardens, agriculture
- re-use of rainwater
-
industrial systems
1.2 Technical specifications
Table 1 shows the technical specifications of the products in the range referred to in this manual.
Technical specifications
PWM 203 PWM 202 PWM 201
Inverter power
supply
Voltage [VAC]
(Tol +10/-20%)
220-240 220-240 220-240
Phases 1 1 1
Frequency [Hz] 50/60 50/60 50/60
Current [A] 25,0 18,7 12,0
Inverter output
Voltage [VAC] 0 - V alim. 0 - V alim. 0 - V alim.
Phases 3 3 3
Frequency [Hz] 0-200 0-200 0-200
Maximum current[A rms] 11,0 9,0 6,5
Minimum pump current [A rms] 1 1 1
Max. power output [kVA] (400
Vrms)
3,3 2,3 1,4
Mechanical power P2 3 CV / 2,2 kW 2 CV / 1,5 kW 1,3 CV / 1 kW
Mechanical
specifications
Unit weight [kg]
(excluding packaging)
6,3
Maximum dimensions
[mm](WxHxD)
173x280x180
Installation
Work position Any
IP protection rating 20
Max. ambient temperature [°C] 50
Max. section of lead accepted by
input and output terminals [mm²]
4
Min. diameter of cable accepted
by input and output cable glands
[mm]
6
Max. diameter of cable accepted
by input and output cable glands
[mm]
12
Control and Pressure regulation range [bar] 1 – 95% full scale without press.