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I.B. 8926-1

THE MOTOR CONTROL CENTER

Although the Cutler Hammer Freedom 2100 Motor Con-
trol Center may be joined to existing Five Star, Series
2100, and Advantage installations using the same splice
bar kits common to both.  Units designed for the Free-
dom 21 00 can be mounted in Five Star Series and Se-
ries 21 00 sections, but the opposite is not recommended,
because Five Star and Series 21 00 units may lack ter-
minal blocks and sufficient interrupting capacity.  The
Freedom 2100 MCC may be joined to existing Cutler-
Hammer Freedom Unitrol and Fl 0 Unitrol MCC’s with a
special splice bar kit, but units are not interchangable.

CONTROL CENTER NOMENCLATURE

The numbers shown in parentheses in the following text
refer to the balloon legends in Figure 2.

The Cutler Hammer Freedom 21 00 Motor Control Center
consists of one or more totally enclosed, dead front, free
standing structural assemblies (1 7) 90 inches high which
are compartmentalized to house individual control units.
(2) With control units mounted in the front side only, the
structure may be 16 or 2l inches deep.  For mounting
units back-to-back, the structure is 21 inches deep.  Steel
covers (7) enclose the structure at the top, sides and at
the rear of front-mounted-only structures.

Each control center contains a main horizontal bus sys-
tem (9) mounted at the top and extending across the
length of the control center.

A vertical bus system (8) installed in each vertical sec-
tion is connected to the horizontal bus to feed the indi-
vidual control units. (6) The vertical bus is isolated by a
full height barrier. (14) An optional labyrinth barrier pro-
vides both isolation and insulation.  An automatic shut-
ter is included with the labyrinth barrier system to cover
the stab openings for each control unit.

At the top of each section, a door provides ready access
to the top horizontal wireway (11) and ground bus (10).
The horizontal wireway is isolated from the bus systems
by steel barriers (12) which can be removed for installa-
tion and maintenance operations.  Adequate space is
provided for control wiring and top cable entry.

At the bottom of each section, a door (18) provides ready
access to the bottom horizontal wireway,  (19) and neu-
tral bus (if provided).  The bottom of each section is com-
pletely open to provide unrestricted bottom entry of ca-
ble and conduit.  Channel sills may be installed across
the bottom of the control center if specified, and an op-

tional bottom plate may also be specified.
A vertical wireway 8 inches deep, (16) extending the full
90 inch height of the control center is located to the right
of each unit compartment.  This wireway is covered by
two hinged doors (15) and contains cable supports to
secure wire bundles and cables.  The vertical wireway
joins the horizontal wireway at top and bottom to pro-
vide unobstructed space for interwiring.

Each vertical section provides space to mount up to six
controller units (2) with a minimum height of 12 inches,
in increments of six inches, for a total of 72 inches of
usable space.  Controllers through NEMA Size 5 are
drawout type (except reduced-voltage starters).  These
drawout unit assemblies are a completely self-contained
package consisting of a steel enclosure, operating han-
dle and electrical components.  The drawout assembly
slides into its compartment on guide rails (1 3) to pro-
vide easy withdrawal and reinsertion andto ensure pre-
cise alignment of the unit stabs with the vertical bus.
Each drawout unit is held in place by a single quarter-
turn latch (3) which can only be engaged when the unit
stabs are fully mated with the vertical bus.  Each unit
has a separate door, (1) held closed by a minimum of
two quarter-turn fasteners.

The operating handle on the controller unit (4) moves
vertically.  In the ON or TRIPPED positions, the handle
interlocks with the unit door to prevent its opening.  In
this position, authorized personnel can open the door by
turning the defeater mechanism screw.  (21)With the unit
door open and the operating handle in the ON position,
another interlock to the divider pan prevents removal of
the unit.  This same interlock prevents insertion of the
unit unless the handle mechanism is in the OFF posi-
tion.  To ensure that units are not energized accidentally
or by unauthorized personnel, the handle mechanism
can be padlocked in the OFF position.

Part 1

GENERAL INFORMATION

Fig. 1 Nameplate

Содержание Freedom 2100

Страница 1: ...allation and Maintenance Manual This electrical control equipment is designed to be in stalled operated and maintained by adequately trained workmen These instructions do not cover ll details vari ati...

Страница 2: ...p cable entry At the bottom of each section a door 18 provides ready access to the bottom horizontal wireway 19 and neu tral bus if provided The bottom of each section is com pletely open to provide u...

Страница 3: ...m of three padlocks is provided on each handle The device panel 6 is mounted on the drawout unit It will accommodate up to six pilot devices The overload reset button 20 is mounted on the unit door Fi...

Страница 4: ...that the control center has been mishandled or shipped on its back or side remove the drawout units and make a complete inspection of the internal structure bus bars insulators and unit compo nents fo...

Страница 5: ...out and or tagged out of service Where it is not feasi ble to de energize the system the following precau tions should be taken A Persons working near exposed parts that are or may be energized shoul...

Страница 6: ...leveling each section and bolting the frames together if they are separated If necessary secure the MCC to walls or other supporting surfaces Do not depend on wooden plugs driven into holes in masonry...

Страница 7: ...ith the MCC attached to one end of shipping section Refer to Figure 4 This method provides the most convenient access to the bolts and eliminates the need to remove the horizon tal bus barriers in tha...

Страница 8: ...the MCC the kit is shipped with four bolts per phase an appropri ate quantities of related hardware For a single bus bar per phase the hardware is used as shown in Figure 6 for either 16 or 20 deep e...

Страница 9: ...Where the MCC is supplied in a Type 3R enclosure for an outdoor application apply roof splice caps at each shipping block junction to maintain the enclosure integrity Fig 9 Quadruple Bar Splice Kits...

Страница 10: ...Control Center set up for splice to Freedom Unitrol of F10 Unitrol Fig 11 Splice Plates Attached to Freedom 2100 Horizontal bus and Ground Bus at Top Fig 12 Horizontal bus Splice Freedom unitrol On Le...

Страница 11: ...change the wire or lugs accordingly If crimp lugs are used crimp with the tools recommended by the manufacturer Use care in stripping insulation to avoid nicking or ring ing the metal All field wirin...

Страница 12: ...and from these unit blocks along with load wiring through Size 3 to master terminal blocks located at the top o bottom of the structure See Figure 16 Master terminal blocks can be either fixed or draw...

Страница 13: ...eneral rule allow the disconnect means and overcurrent protection to be located in the MCC pro vided the feeder taps from the transformer are sufficiently short and other requirements are met MAIN DIS...

Страница 14: ...line connections sufficiently and tighten the lugs correctly Each incoming line compartment is equipped with a two piece spreader bar located about nine inches from the conduit entry Use this spreade...

Страница 15: ...Bimetallic ambient compensated operated Trip free mechanism Electrically isolated NO NC contacts pull RESET button to test Overload trip indication Single phase protection UL listed CSA certified and...

Страница 16: ...ter clockwise one setting at a time until the breaker trips in starting and then adjust upward one setting position This will insure that the circuit will open instantly on any current above the moto...

Страница 17: ...the motor nameplate FLA full load amps B Tighten the heater pack mounting screws securely per r e c o m m e n d e d torque values listed below Heater Pack Numbers Recommended Torque H2001B thru H2017B...

Страница 18: ...5 45 6 H2020 45 7 51 2 56 7 62 1 H2021 62 2 69 7 77 1 84 6 H2022 84 7 94 9 105 115 H2023 106 118 131 144 H2024 A B C D MAXIMUM RATINGS NEMA SIZE AMPERES SIZE AMPERS 0 18 1 27 F 32 Use 75 C copper con...

Страница 19: ...47 H2008B A B C D FLA rating marked on heater pack multiplied by a transfomation ratio For motor FLA values not listed turn the dial clockwise for higher or counterclockwise for lower ratings Magnetic...

Страница 20: ...s prior to energizing 9 Manually exercise all switches circuit breakers and other operating mechanisms to make certain that they are properly aligned and operate freely 10 Test any ground fault protec...

Страница 21: ...allation unscrew prior to unit withdrawal Pull apart terminal blocks in the vertical wireway must be disengaged see Figure 27 and page 10 and wiring from the unit to other units to master terminal blo...

Страница 22: ...When the unit is withdrawn free of the linkage a spring automatically moves the shutter to its closed po sition See Figure 31 and Figure 4 With the control unit removed the shutter should com pletely...

Страница 23: ...lank door 2 Position the new unit door over the open space to ensure the hinges and latches are aligned If the spaces differ the hinges and latches on the struc ture must be re located to match the un...

Страница 24: ...trical equipment refer to the applicable drawings covering the specific motor control center MCC and any other related inter connection drawings Follow any instructions which may be given for each dev...

Страница 25: ...est ter minated with a crimp type lug that is attached to the con trol component When screw type lugs marked CU AL are used with aluminum wire joint should be checked for tightness every 200 operation...

Страница 26: ...Page 26 I B 8926 1...

Страница 27: ...as follows A Place a 020 inch feeler gauge between the arma ture and magnet with the armature held tightly against the magnet B Check continually in each phase i e determine if circuit from terminal t...

Страница 28: ...ig 39 Normal Service Wear Fig 40 End of Service Life ABNORMAL WEAR CONDITIONS Contact Appearance Cause Curling and Separation Curling is usually a result of service that produces very high heat of Cor...

Страница 29: ...pen the switch or if visual inspection after opening indicates deterioration beyond normal wear and tear such as overheating contact blade or jaw pitting insulation breakage or charring the switch mus...

Страница 30: ...to service Before returning the controller to service checks must be made for the tightness of elec trical connections and for the absence of short circuits grounds and leakage All equipment enclosur...

Страница 31: ...rsing F204 F206 F207 Full Voltage Reversing F214 F216 F217 Reduced Voltage Autotransformer Type F604 F606 F607 Reduced Voltage Part Winding Type F704 F706 F707 Reduced Voltage Closed Transition Star D...

Страница 32: ...Page 32 I B 8926 1 Part 11 PLAN VIEWS...

Страница 33: ...Page 33 I B 8926 1...

Страница 34: ...s Size 5 non reversing and reversing vacuum I L 16999 Size 6 non reversing and reversing vacuum I L 17088 Metering IQ Data Plus TD 17195 Circuit Breakers Series C F frame I L 29ClOl Series C J frame I...

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