Effective June 2009
Instructional Leafl et
IL03901001E
DS6 series soft start controllers
Introduction
Eaton’s Cutler-Hammer
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DS6 solid-state soft
start controller is an electronic, self-contained
panel- or enclosure-mounted motor soft-starting
device. It provides three-phase induction motors
with a smooth start, both mechanically and elec-
trically. The DS6 line uses four silicon-controlled
rectifiers (SCRs) that are connected in a full wave-
power bridge on two phases. The voltage and cur-
rent applied to the motor are controlled by varying
the SCR conduction period. This, in turn, controls
the torque developed by the motor. After the
motor reaches speed, a bypass contactor is ener-
gized to bypass the SCRs. The DS6 is designed
to fulfill the industrial service requirements of
applications such as chiller starters, pump panels,
and machine tools. This device meets all relevant
specifications set forth by UL
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508, IEC 60947-4-2,
CE, C-Tick, and CSA
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.
This leaflet covers basic installation and setup. No
publication can take into account every possible
situation. If you require further assistance with any
aspect of this product or a particular application,
contact Eaton.
Inspection
General
Upon receipt of the unit, verify that the catalog
number and unit options stated on the shipping
container match those stated on the order/
purchase form.
Inspect the equipment upon delivery. Report any
carton damage to the carrier prior to accepting the
delivery. Have this information noted on the freight
bill. Eaton is not responsible for damage incurred
in shipping.
Unpacking
Remove all packing material from the unit. Be
sure to remove all packing material from the
lug location.
Check the unit for any signs of shipping damage.
If damage to the product is found after unpacking,
report it to the freight company. Retain the pack-
ing materials for the carrier to review.
Verify that the unit’s catalog number and options
match those stated on the order/purchase form.