Cutler Hammer, Div of Eaton Corp DS6 Product Flyer
DS6 Series Soft start controller
Compact design, high functionality
for soft starting applications
With a focus on small size and ease of installation,
Eaton’s DS6 line of reduced voltage solid-state soft
start controllers is designed to meet your needs for
reliable and efficient soft starting. Designed to control
the acceleration and deceleration of three-phase
motors, the DS6 Series is available for current ranges
from 40 to 180 amps.
Why choose soft starting?
Because soft starting
minimizes shock to mechanical
components, the life of your
system is extended, increasing
reliability and lowering costs.
Less shock to products on
conveyors and material handling
equipment also reduces the
costs associated with damage
to handled products. Lower
inrush current causes less stress
on electrical components and
junctions further maximizing
system life. The use of a soft
starting device reduces slippage,
squealing and stretching –
leading to an extended belt
life of 2-6 times that of a
traditional across the- line
starter. An extended life means
reduced downtime and lower
maintenance costs.
Small size makes upgrading
easy
The smallest soft start controller
in its performance class, the
DS6 is the perfect option for
upgrading existing systems
that may currently be using
wye-delta, autotransformers,
or across-the-line NEMA and
IEC starters. Now you can get
the benefits of soft starting
without having to change
enclosure sizes or add additional
assemblies—saving you time
and money.
Operation
The DS6 is designed to be wired
in the three phase line feeding
the three motor input leads
as is done for normal acrossthe-line starting. It uses Silicon
Controlled Rectifiers (SCRs) to
ramp the voltage to the motor,
providing smooth acceleration
and deceleration of the load.
After the motor is started, the
internal run bypass contactor
closes, resulting in the motor
running directly across-the-line.
The internal run bypass contactor
significantly reduces the heat
generated as compared to
non-bypass starters, thereby
reducing enclosure sizes and
cooling requirements and
maximizing the life of all the
devices in the enclosure. The
simple addition of an overload
relay, Eaton’s XTOB, C306 or
C396 types, gives the DS6
soft start controller overload
protection, while limited control
wiring makes installation quick
and easy.
Voltage Ramp Start
This start method provides
a voltage ramp to the motor,
resulting in a constant torque
increase. This most commonly
used form of soft start mode
allows you to set the initial
voltage value and the duration
of the ramp to full voltage
conditions.
Bypass contactor(s) close after
ramp time has elapsed.
• Adjustable initial voltage
30–92% of full voltage
• Adjustable ramp time 1–30
seconds
Bypass
100%
Speed
Start Run
Time (Seconds)
Soft Stop
Allows for a controlled stopping
of load. Used when a stop-time
that is greater than the coast-tostop time is desired. Often used
with high friction loads where a
sudden stop may cause system
or product damage. Setting the
soft stop time to a value of 0
turns off this feature.
• Soft stop time = 0–30
seconds
Stop RampStart Ramp
100%
Speed
Run Soft Stop
Time (Seconds)
Features and Benefits
• Smallest soft start controller
in its performance class
• Run bypass mode greatly
reduces the internal heating
created by the power
dissipation across the SCRs
• LED displays device status
and provides fault indication
• Variable ramp times
and voltage control
(torque control) settings
provide unlimited starting
configurations, allowing
for maximum application
flexibility
• Soft stop control suits
applications where an abrupt
stop of the load is not
acceptable.
• Soft acceleration and
deceleration reduces wear on
belts, gears, chains, clutches,
shafts and bearings.
• Minimizes the peak inrush
current’s stress on the power
system
• Minimizes peak starting
torque to diminish mechanical
system wear and damage
• 24 Vdc control module
enhances personnel and
equipment safety
Adding an overload relay provides the needed overload protection.
Eaton Corporation
Electrical Sector
111 Superior Avenue
Cleveland, OH 44114
United States
877-ETN-CARE (877-386-2273)
Eaton.com
© 2009 Eaton Corporation
All Rights Reserved
Printed in USA
Publication No. PA03901002E
June 2009
PowerChain Management is a registered
trademark of Eaton Corporation.
All other trademarks are property of their
respective owners.
Loading...