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INTRODUCTION ...............................................................
GENERAL
These are the Operating Instructions for the
MICROMASTER Eco and MIDIMASTER Eco
and are to be used for quick and simple
commissioning only.
For more details and the complete
parameter list for specific applications
consult the Eco Reference Manual on our
website (details available on back page).
The Eco range of inverters comprises variable
frequency inverters for controlling the speed of
fans and pump motors. The Eco can also be
programmed to manage many other motor
functions and limits. These functions are set
by parameters which are programmed using
the keypad.
TYPES OF SYSTEM
CONTROL
The MICROMASTER and MIDIMASTER Eco
inverters are normally controlled using the
keypad or input/output terminals. However,
there is an option for remote operation using
the RS485 D-type connection on the front
panel, see the Eco Reference Manual for
further details.
The output frequency and hence the motor
speed can be controlled by digital or analog
inputs. The digital inputs can be programmed
to control the motor speed by means of:
• frequency set points, using the
keys
• fixed frequencies, via binary inputs
• motorized potentiometer function
The analog inputs can be programmed for
voltage or current input in conjunction with DIP
selector switches.
Closed loop process control, using a standard
Proportional, Integral, Derivative (PID) control
loop function can be selected. This control is
set-up using DIP selector switches and analog
input 2. A 15V, 50 mA supply is provided to
power the feedback transducer.
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