Fairford HFE-30 Basic Manual

Hfe
Digital Soft Starters
HFE-30 30 Amp @ 110-230 Volts

APPLICATION

HFE Energy Saving soft starters are designed to
control single phase AC motors. Operation is fully
automatic, a low starting voltage is applied to the
motor as soon as the supply is switched on. The
internal automatic ramp control immediately takes
over and raises the voltage progressively, causing
the motor to accelerate smoothly.
At the end of the ramp period, the motor is operated
in Energy Saving mode and the HFE continuously
regulates the voltage to match mechanical load.
Energy consumption at light loads is reduced, motor
winding and case temperatures are lowered, motor
life is extended, noise levels are reduced and power
factor is improved.
The LED in the unit indicates when the unit is
ENERGY SAVING. As energy consumption is
reduced the ENERGY SAVING LED flashes at a
slower rate.
The HFE remains in circuit until the supply is discon-
nected. The HFE automatically resets and is ready for
the next start.

Safety at Work

ISOLATE FROM THE SUPPLY BEFORE WORKING ON THE UNIT OR MOTOR
It is the responsibility of the installer and user to ensure that this equipment is installed,
operated and maintained in accordance with the Health and Safety at Work Act in the
United Kingdom and all applicable legislation, regulations and codes of practice relevant to
your location.
Only qualified personnel should install this equipment, after first reading and understanding
this document. The installation instructions must be followed, and any questions or doubt
must be referred to the supplier of the equipment.
The system may be configured to allow for auto restart controlled from contacts on the
motor side of the unit. Users and operators must always take all necessary precautions to
prevent damage to equipment and especially to prevent the risk of injury to personnel
working on or near the motor and driven equipment.
The manufacturer does not assume any liability, express or implied, for any consequences
resulting from inappropriate, negligent or incorrect installation, application, use or adjust-
ment of the product or circuit design, or from mismatching of a soft starter to a motor.
F A I R F O R D
E L E C T R O N I C S
page 1 M-2025-F 081007
Soft Starters and Energy
Optimising Soft Starters