If initialising is carried out (par. H-03 Restore Factory Settings), the programmable parameters of the frequency converter return to their default settings.

Intermittent Duty Cycle

An intermittent duty rating refers to a sequence of duty cycles. Each cycle consists of an on-load and an off-load period. The operation can be either periodic duty

or none-periodic duty.

keypad

The keypad makes up a complete interface for control and programming of the frequency converter. The is detachable and can be installed up to 3 metres from

the frequency converter, i.e. in a front panel by means of the installation kit option.

lsb

Least significant bit.

MCM

Short for Mille Circular Mil, an American measuring unit for cable cross-section. 1 MCM ≡ 0.5067 mm

msb

Most significant bit.

On-line/Off-line Parameters

Changes to on-line parameters are activated immediately after the data value is changed. Changes to off-line parameters are not activated until you enter [OK]

on the keypad.

PID Controller

The PID controller maintains the desired speed, pressure, temperature, etc. by adjusting the output frequency to match the varying load.

RCD

Residual Current Device.

Set-up

You can save parameter settings in four Set-ups. Change between the four parameter Set-ups and edit one Set-up, while another Set-up is active.

SFAVM

Switching pattern called Stator Flux oriented Asynchronous V ector M odulation (par. F-37 Adv. Switching Pattern).

Slip Compensation

The frequency converter compensates for the motor slip by giving the frequency a supplement that follows the measured motor load keeping the motor speed

almost constant.

Logic Controller (LC)

The LC is a sequence of user defined actions executed when the associated user defined events are evaluated as true by the LC.

Thermistor:

A temperature-dependent resistor placed where the temperature is to be monitored (frequency converter or motor).

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