ZENER VARIDRIVE SOLUTIONS
ZENER ECODRIVE® 8000
IM00130
P a g e
| 9
20/07/2018 3:59 PM
Application – Constant Pressure Control
The ECODRIVE is configured to provide a constant
pressure using an integral PID controller. The
ECODRIVE monitors the pressure and adjusts the
motor/pump speed to achieve the set pressure.
The ECODRIVE will operate the pump at the speed
required to achieve constant pressure. If the solar
energy is not sufficient to maintain this pressure the
system can be configured to operate at a lower
pressure or switch off.
When the solar energy or the speed reaches a
minimum level (ie. ‘SOLAR LO’) for a preset time
(‘qualifying time’) the ECODRIVE will switch off. When
there is insufficient voltage from the solar array the
ECODRIVE will completely shut down.
When there is sufficient solar energy the ECODRIVE will
re-power and can be configured to automatically
restart the pump.
The ECODRIVE with an option board fitted provides a
24VDC DC loop power supply for a pressure
transducer.
Additional protection for bore level, no flow or external
over pressure can be included.
Bore/Well Level Protection:
An optional bore level protection is also available to prevent dry running the pump. When a low level is detected the
ECODRIVE will stop the pump and restart after an adjustable time period.
Irradiance Sensor:
When operating from Solar only, an irradiance sensor is optional. Without an irradiance sensor the ECODRIVE monitors the
DC bus voltage and adjusts the motor speed accordingly. In a dual supply arrangement and an AC supply is used, an
irradiance sensor is required.
Dual Supply / AC Power:
During periods of ‘Lo Solar’ or no sunlight, the ECODRIVE can provide an output to connect the GRID or generator supply to
continue to operate. This may be finely tuned to achieve no interruption during changeover as the solar is always
connected.
Configuration / programming:
To guide you through the setup/programming for this application refer to the following pages:
Supply & Motor Wiring
Page 13
Earthing:
Page 18
Control wiring:
Page 19
Preliminary checks:
Page 25
Programming /setup:
Solar only Solar OR AC Aux Supply Page 36
Diagram 4b: Simple Pressure Control
Содержание ECODRIVE 8000
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