Fairford HFE1 Soft Starter Basic Guide

Hfe
Digital Soft Starters
FA I R F O R D
Soft Starters and Energy
Optimising Soft Starters
ELECTRONICS
HFE-1
10 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.
Two LED’s on the front of the unit indicate when the
POWER supply is connected and 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 disconnected.
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 adjustment of the product or circuit design, or from mismatching of a soft starter to a motor.
page 1 M-1945-F 110404
Mechanical Details
MOUNTING
Power on LED
Energy saving LED
The module must be fixed to a vertical surface. To
ensure free air movement a minimum clearance of
40mm must be maintained above and below the unit.
ramp time
Jumper Functions
J1 Energy saving/
optimising
J1 - Enables Energy Saving
J2 - Fit when using with refrigeration
J3 - Remove if motor has a
“Potential relay”
J2 Fridge mode
J3 Optimise 2
50mm x 195mm mounting
centres - Ø5.5mm holes
or 2 off 5.5mm open slots
on 195mm pitch
50
Power
L
MN
ML
Electrical connections
Max. Torque 4lbs-inch
0.5 Newton Metre
178
195
206
~218 overall
N
Saving
29
68
64
29
68
46
- Motor Live
- Supply Live
MN ML
- Motor Neutral
L
- Supply Neutral
- Earth/Ground
- Earth/Ground
N
page 2 M-1945-F 110404
2 off M16 Euro index cable
glands suitable for Ø4mm
to Ø10mm cable.
Use 21mm spanner to
tighten glands.
Cable cross section
0.75mm² to 2.5mm²
WIRING
The soft starter is normally inserted into the circuit between the motor and whatever switchgear
is normally used for isolation or switching. The unit can also be fitted before switchgear so that
it can be installed in the supply to equipment which has it’s own mechanical control.
This feature allows for easy installation on equipment such as refrigeration where the need to
disturb internal wiring is avoided.
Supply Live
Motor Neutral
L
MN M L
Motor Live
Supply Neutral
Earth/Ground
Earth/Ground
N
in
Ma ding
win
Motor connected for
Capacitor Start - Run
Au
w i n xiliary
din
g
Earth/Ground
Neutral
Live 110/230V~
Typical connection
for the HFE.
Extra starting torque
may be needed for
loads which have a
Connect Start Capacitor
particularly ‘sticky’
to Supply live for
High Torque or Heavy starting
starting characteristic.
This can be achieved by
rearranging the internal
connection of the
starting capacitor,
Centrifugal or voltage bringing the connection
switch controls
out and to the supply
Start
start Capacitor
side of the starter as
Cap
shown.
Run
Cap
The terminations are made with industry standard cage clamp screw terminals directly onto the
circuit board on all units.
The incoming power supply is connected to the terminals marked ‘L’ and ‘N’. For EMC compliance it is important that the line circuit is connected to L and the neutral circuit to N. Outgoing
connections from the HFE are taken from the terminals marked ‘LM’ and ‘NM’ to the motor or
load input terminals (see diagram). Ensure that a good connection is made to the earth
terminals provided.
Fuses or other type of short-circuit protection are required for protection against a cable or
motor terminal box fault. These must be fitted externally and on the supply side of the unit. See
“Specifications” section for recommended fuse type and cut-out device.
Operation
Set the ramp time potentiometer to midway to approx 2 seconds and start the system. If the
motor turns instantly when the soft starter is energised and accelerates satisfactorily then no
further adjustment is required. If the rate of acceleration is too great stop the unit and turn the
ramp time potentiometer clockwise then restart. Adjust anti–clockwise for a shorter ramp time
setting to increase the rate of acceleration. The motor should turn instantly when the soft starter
is energised. If not, rearrange the connection of the starting capacitor as shown in fig 1
For running currents up to and including 10 Amps the unit is rated for continuous duty.
Start currents must never exceed 60A.
page 3 M-1945-F 110404
STARTING
Rating Table
Load
Amps
(Ie)
Utilisation
Category
5
AC53a
10
Start
Duty
Up to
Starts/Hr
3
99%
60
15
2
99%
60
30
4
99%
60
40
3
99%
10
Current
(Amps)
Time
(Secs)
10
Max fuse
rating
*22x58mm
class gR/aR
Cut-out device
20A
32A
AC53a
10A MCB
Trip Characteristic
Type "C"
* 13A fused plug may be used but not for more than load amps 5A at duties as
indicated in Rating Table
The rated
operational
current
Continuous
connection
10A
:
Allowed start
current (X Ie)
Allowed start
time (S)
time on
load (%)
Equally spaced
starts/Hr
AC–53a : 4 – 3 : 99 – 10
SPECIFICATIONS
Pedestal Voltage
Start Time:
Terminations:
Fixed at ~15%.
Continuously variable from ½S -5S.
Cage clamp terminals suitable for 0.75mm2 (18 awg)
to 2.5mm2 (12 awg)Solid or stranded
Ambient Temperature:
0°C to 40°C without derating.
Enclosure:
IP20 with standard cover:
Rated Operational Voltage:
Ue: 110 to 230V ac (–15% +10%), 50/60Hz
Recommended cut–out device:
10A rated MCB, Trip Characteristic “C“.
Rated insulation voltage:
Ui: 250V.
Rated impulse withstand voltage:
Uimp: 4kV (1.2/50µs).
Short circuit co–ordination:
Type 1 , Iq: 5kA when protected by recommended Fuse
Fuse Type:
See rating table.
Design standards: IEC 60947–4–2: “AC Semiconductor Motor Controllers and Starters”.
Fairford Electronics Limited, Bristow House, Gillard Way,
Lee Mill Industrial Estate, Ivybridge, Devon PL21 9GG, UK
TEL: + 44 (0) 1752 894554
EMAIL: sales@fairford.co.uk
Document No. FD194510-F
FAX: + 44 (0) 1752 897145
WEB: www.fairford.co.uk
page 4 M-1945-F 110404
© Fairford Electronics Ltd 2011
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