Rockwell Automation 7712 User Manual

OneGear™ Motor Control Center Full-voltage Non Reversing Starter (7.2 kV)

Bulletin 7712 Installation Instructions

Important User Information

IMPORTANT

Read this document and the documents listed in the Additional Resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.

Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required to be carried out by suitably trained personnel in accordance with applicable code of practice.

If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.

Identifies information that is critical for successful application and understanding of the product.

Labels may also be on or inside the equipment to provide specific precautions.

SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.

ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

Allen-Bradley, Rockwell Software, Rockwell Automation, and TechConnect are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

Chapter 1

Equipment Overview Overview ................................................................................. 1-1

Chapter 2

Chapter 3 Overview ................................................................................ 3-1

Cabinet Handling Instructions ................................................ 3-2

Overhead Lifting Method ................................................. 3-2

Rod and Pipe Rollers ........................................................ 3-3

Fork Lift Truck ................................................................. 3-4

Shipping Skid Removal .................................................... 3-4

Overview .................................................................................. 2-1

Unpacking and Inspecting

Transportation and Handling

Chapter 4 Equipment Installation 4.1 Removal of Overhead Lifting Brackets .................... 4-1

4.2 Open MV Door .......................................................... 4-2

4.3 Removal of the Contactor Cart .................................. 4-3

4.4 Remove Inter Compartment Barrier .......................... 4-7

4.5 Remove Bottom Conduit Cover ................................ 4-9

4.6 Final Product Placement and Joining of Adjacent Units . 4-9

4.6.1 Mechanical Connections between Enclosures . 4-11

4.6.1.1 Joining Incoming Breaker to Starter ........... 4-15

4.6.1.2 Joining Incoming Section to Starter ........... 4-16

4.6.1.3 Joining Section to Section .......................... 4-17

4.7 Floor Anchoring ...................................................... 4-18

4.8 Connecting to Load Terminals ................................ 4-19

4.9 Ground Bus Linking ................................................ 4-20

4.10 Main Bus Linking .................................................... 4-21

4.11 Placing the Contactor Back Into the Starter ............. 4-25

Chapter 5 Procedure ................................................................................ 5-1

Standard Plenum Assembly Procedure

Appendix A Torque Values Torque Values for Hardware .................................................. A-1

7712-IN001B-EN-P – June 2013

ii Table of Contents

7712-IN001B-EN-P – June 2013

Chapter 1

Equipment Overview

Overview The OneGear™ Bulletin 7712 controller is a one-high full voltage non-

reversing starter. The starter comes with the following standard items:

• Drawout Vacuum Contactor

• Main Power Rated Fuses

• Low Voltage Control Panel with low voltage controls

Figure 1.1 shows an overview of a typical Motor Control Center complete

with two Bulletin 7712 units and a Bulletin 7791 incoming line unit. Refer to project documentation for speciﬁ c conﬁ guration details and dimensions.

Incoming Cabinet (Bulletin 7791)

Starter Cabinet (Bulletin 7712)

531,5

[20.92]

350,0

[13.78]

381,5

[15.02]

Note: This dimension includes the end side sheet of metal.

Starter Cabinet (Bulletin 7712)

Figure 1.1 – Typical Bulletin 7712 OneGear™ One-High Starter

All cabinets are shipped individually or as part of a shipping split. This

document describes the handling and installation of the starter and with Incoming Breaker, Incoming Section and Joining Section-to-Sections.

Installation and connection instructions for switchgear cabinets, that are

adjacent to each other is covered by the respective manufacturer’s documentation and is not included in the scope of this document.

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1-2 Equipment Overview

7712-IN001B-EN-P – June 2013

Chapter 2

Unpacking and Inspecting

Overview Before leaving the factory, the controller has been tested mechanically and

electrically.

Immediately upon receiving the controller, remove the packing and check

for possible shipping damage. Report any damage immediately to the claims ofﬁ ce of the carrier.

After unpacking, check the items received against the Bill of Lading to

ensure that the nameplate description of each item agrees with the material ordered. Inspect the controller for physical damage as stated in the Rockwell Automation Conditions of Sale.

All claims for breakage and damage, whether concealed

Remove all packing material, wedges or braces from within the controller.

I M P O R T A N TI M P O R T A N T

or obvious, must be made to the carrier by the customer as soon as possible after receipt of the shipment. Rockwell Automation will render reasonable assistance in the securing of adjustment for such damage claims.

If any part of the equipment will not be installed when it is unpacked, it should be stored in a clean dry place. The storage temperature must be between -20 °C (-4 °F) and 75 °C (167 °F) with a maximum humidity of 95% non-condensing.

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2-2 Unpacking and Inspecting

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Chapter 3

Transportation and Handling

Overview The controller sections are shipped on wooden skids bolted to the cabinetry.

Lifting angles are installed at the top of the cabinetry . The controller sections must be maintained in the upright position during any handling.

Ensure that the load rating of all lifting equipment is

sufﬁ cient to safely raise the controller sections. Refer to the packing slip for shipping weights.

Round rollers can be used to assist in moving the equipment to the installation

site. Once at the ﬁ nal site, rollers can be used to place the sections in their desired position.

Care must be exercised when using either a forklift or the

pipe rolling technique for positioning purposes to ensure that the equipment is not scratched, dented or damaged in any manner. Always exercise care to stabilize the controller during handling to guard against tipping and injury to personnel.

It cannot be stressed how important it is that the customer

I M P O R T A N TI M P O R T A N T

installation duties are performed correctly. Any errors will likely cause delays in commissioning or damage to the equipment.

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3-2 Transportation and Handling

Cabinet Handling Instructions When lifting the Bulletin 7712 OneGear™ cabinet, the lifting instructions

speciﬁ ed below must be followed.

Overhead Lifting Method

1. Verify that the front/back lifting channels and the middle cosmetic channels are all installed and that the connecting hardware is tightened to the cabinet.

2. Verify that the four (4) lifting clips have corresponding internal lifting clips installed and connected. Lifting clip holes are 30 mm.

3. Figure 3.1 is only for lifting demonstration purpose. The lifting parts may be different depending on customers’ decision and availability of the lifting hardware. Verify shipping weight and capacity of lifting equipment.

4. As shown in Figure 3.1, the angle between the slings and horizontal must be 45° or more (70° is ideal).

5. The centre to centre distance of the two lifting points of the lifting angle or beam is to be 882 mm +/- 150 mm (34” +/- 6.0”).

Figure 3.1 – Overhead Lifting of Motor Control Center

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Transportation and Handling 3-3

Rod or Pipe Rollers

This method is only suitable when there are no inclines and the controller

is being moved on level ﬂ oor.

Boards 50 mm X 152 mm (2” x 6”) or equivalent and at least 300 mm

longer than the controller must be placed under the shipping skid, as shown in Figure 3.2.

Carefully ease the shipping skid over the rollers until the equipment weight

is borne on the rollers.

The controller can be rolled to its desired location. Steady the load to prevent

tipping.

Minimum 50 mm x 152 mm (2 in. x 6 in.)

Figure 3.2 – Rod or Pipe Rollers

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3-4 Transportation and Handling

Fork Lift Truck

A single fork lift truck may be used, extreme caution must be exercised.

1. Insert the forks into openings of the shipping skid from the rear of the controller.

2. Carefully balance the controller on the forks and apply safety straps.

Shipping Skid Removal

Internal access is required to remove the wooden shipping skid from the

Motor Control Center cabinets. External angle brackets attached to the enclosure are used to attach the enclosure to the wooden skid.

Remove the angle brackets and the associated hardware.

When the enclosure is lifted by overhead means the wooden skid can be

removed.

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Equipment Installation

Chapter 4

4.1 Removal of Overhead Lifting Brackets and Channels

Before joining to adjacent equipment, it is necessary to remove the lifting angles, spacer, washer and bolt.

(2) Lifting Angles

Spacer, Washer and Bolt

Figure 4.1 – Removal of Lifting Bracket

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4-2 Equipment Installation

4.2 Open MV Door Insert the supplied key into MV door. After the door is unlocked, lift the

door handle up to open the MV door.

Lifting the door handle up unlatches the door allowing it to be opened. DO

NOT force open the doors.

Insert supplied key and turn to unlock door handle

Figure 4.2 – Unlocking Door Handle

Figure 4.3 – Lifting Door Handle

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Equipment Installation 4-3

Remove shipping bracing between contactor cart and structure. Inspect for

shipping damage.

Figure 4.4 – View of Contactor Cart with open door and packing materials removed

4.3 Removal of the Contactor Cart

Just below the contactor cart door, there are two pin holes that will receive

the pins on the service cart.

Roll service cart up to enclosure and ensure that the cart platform is at the

same elevation of rails on service cart and enclosures are equal.

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4-4 Equipment Installation

Aligning Holes for

Tapered Pin

Latching Bracket

Lever Handle

Figure 4.5 – Securing Service Cart to Front of the Cabinet

Tapered Pin

Ensure that the cart pins are securely inserted into the enclosure. On the

front of the cart is a locking key that must be engaged to ensure that the service cart does not come away when the contactor is being removed from the starter.

Insert cart latch key into the cart latch disengagement and turn the key

clockwise a quarter turn, approximately. Visually ensure latch is disengaged from rail.

The service cart must be securely engaged to the starter

ATTENTION

or there is a possibility that the contactor may fall onto the ﬂ oor when the contactor is being removed from the starter. This could result in damage to the contactor and/ or injury to persons.

7712-IN001B-EN-P – June 2013

Equipment Installation 4-5

Disengage cart latch

Figure 4.6 – Contactor Cart Latch

Grab handle, keeping key engaged, and ﬁ rmly remove contractor cart from

enclosure onto the service cart.

Figure 4.7 – Contactor Cart Removal Handle

A clear space of 1300 mm is required in front of the

I M P O R T A N TI M P O R T A N T

equipment to facilitate removal of the contactor cart is required.

I M P O R T A N TI M P O R T A N T

This method of removing the contactor cart is only

valid if the equipment is installed on a level ﬂ oor. If the equipment is installed on an elevated platform, alternate means are required. Consult factory for details.

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4-6 Equipment Installation

Figure 4.8 – Contactor Cart Removal

Figure 4.9 – Contactor Cart Completely Removed

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Equipment Installation 4-7

Figure 4.10 – Barrier Assembly with Contactor Cart Removed

4.4 Removal of Inter Compartment Barrier

Figure 4.11 – Removing Barrier Assembly Bolt

Remove bolt that is retaining the barrier assembly between contactor cell

and load terminal cell.

Bolt Securing

Barrier Assembly

Pull aside gasket from the front of the cabinet ﬂ ange to enable removal of

barrier.

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4-8 Equipment Installation

Figure 4.12 – Setting Aside Gaskets So Barrier Assembly can be Removed

Slide and remove barrier assembly from out of front of the cabinet.

Figure 4.13 – Removal of the Barrier Assembly

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Equipment Installation 4-9

4.5 Removal of Bottom Conduit Cover

At the front of the enclosure on the ﬂ oor, you will ﬁ nd the bottom conduit

cover. There are four bolts holding the cover in place. Remove these four bolts and remove cover.

Remove four bolts

from conduit cover

Figure 4.14 – Bottom Conduit Cover

The starter should now be placed in its ﬁ nal service location. It is important

4.6 Final Product Placement and Joining of Adjacent Units

to ensure the MV MCC lineup is in the proper position as the load cables are to go through the bottom conduit cover. It is also important that the ﬁ nal installation location for the starter lineup is at a certain minimal distance from obstructions (e.g. walls and support columns). Refer to Figures 4.16 and 4.17.

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4-10 Equipment Installation

Control Wire Conduit Opening

1300 mm

Dimensions = inches [mm]

Figure 4.15 – Distance from Obstructions at the Front of Starter Lineup

50 mm

150 mm

Load Cable Conduit Opening

Dimensions = inches [mm]

Control Cable Conduit Opening

Mounting Holes for 0.50 [12] dia. anchor bolts

Figure 4.16 – Distance from Obstructions at the Sides/Back of Starter Lineup

I M P O R T A N TI M P O R T A N T

The channels and external lifting lugs must be removed

prior to mating to any adjacent switchgear components.

7712-IN001B-EN-P – June 2013

I M P O R T A N TI M P O R T A N T

The equipment must be placed on a ﬂ at and level concrete

base that can withstand the weight of the equipment.

Equipment Installation 4-11

4.6.1 Mechanical Connections between Enclosures

For ﬁ nding the mechanical connection bolts in the front of the structure,

remove low voltage wire duct cover from the front of the contactor cart section, and load cable compartment. The covers are held in place by two bolts each. Each section has these covers that need to be removed.

Low Voltage wire duct cover

in Contactor Compartment

Figure 4.17 – Low Voltage Wire Duct Cover

Inside these LV wire ducts, you will ﬁ nd the bolts needed to connect each

section together.

Connecting bolts

for front of the cabinet

Figure 4.18 – Mechanical Mounting Bolts in the Contactor Compartment

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4-12 Equipment Installation

In order to ﬁ nd the mechanical connection bolts on the back of the structure,

remove the back panel to get access to the main buss compartment. Remove the bolts from the bus compartment panel.

Figure 4.19 – Back Access of the Starter

Once removed, you will now see the access to the bus bar compartment.

This compartment also needs to be removed.

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Equipment Installation 4-13

Figure 4.20 – Back Access Bus Bar Compartment

Once removed, you will now see the exposed bus bars.

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4-14 Equipment Installation

Figure 4.21 – Exposed Bus Bar Compartment

Looking just inside the Bus Bar Compartment, there will be a series of nuts

attached to the side of the cabinet. Once the adjoining cabinets are positioned in their ﬁ nal resting location, the cabinets can be secured together with the bolts provided via the cabinet securing bolts (19 ft-lbs/26 N·m).

Connecting bolts for

the front of the cabinet

Figure 4.22 – Cabinet Securing Bolts at the Back of Bus Bar Compartment

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Equipment Installation 4-15

4.6.1.1 Joining Incoming Breaker to Starter

Place the breaker and starter beside each in their ﬁ nal position. Ensure that the two units are in the correct position such that the joining

holes in one cabinet match the opposite bolt hole connections.

Incoming Breaker

(2) Front Junction Points

inside LV panel

(2) Front Junction Points

inside MV panel

Figure 4.23 – Joining Incoming Breaker to Starter

Starter Cabinet

Connecting bolts to seal around bus opening

(4) Rear Junction Points

Front flange faces

Figure 4.24 – Aligning Incoming Breaker to Starter

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4-16 Equipment Installation

4.6.1.2 Joining Incoming Section to Starter

Place the incoming section and starter beside each other in their ﬁ nal position.

Ensure the two units are in their correct position such that the joining holes

in one cabinet match the opposite bolt hole connections.

Starter Cabinet

Incoming Cabinet

Connecting bolts to seal around bus opening

(2) Front junction points

inside LV panel

(7) Rear junction points

(5) Front junction points

inside MV panel

Figure 4.25 – Joining Incoming Section to Starter

7712-IN001B-EN-P – June 2013

Equipment Installation 4-17

4.6.1.3 Joining Section to Section

Place the sections beside each other in their ﬁ nal position.

Ensure the two units are in their correct position such that the joining holes

in one cabinet match the opposite bolt hole connections.

Connecting bolts to seal around bus opening

(2) Front junction points

inside LV panel

(5) Front junction points

inside MV section

Figure 4.26 – Joining Starter to Starter

(7) Rear junction points

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4-18 Equipment Installation

4.7 Floor Anchoring Take out front and back lag bolts. Then drill through these holes into the

ﬂ at and level concrete ﬂ oor. The anchor holes accommodate 12 mm (.50”) hardware. Secure to 75 ft-lb/102 N·m.

Remove bolts from

front anchoring

bolt holes

Figure 4.27 – Front of Cabinet Anchor Bolt Location

Remove bolts from

back anchoring

bolt holes

Figure 4.28 – Back of Cabinet Anchor Bolt Location

ATTENTION

The cabinet must be securely attached to the ﬂ oor or

there is a risk that the starter could fall over.

7712-IN001B-EN-P – June 2013

Equipment Installation 4-19

4.8 Connecting to Load Terminals

Load Terminals U, V, X

Figure 4.29 – Load Terminals at the Front of the Cabinet

With the starter in the ﬁ nal location, and the load cables are now inside the

starter, connect the load cables to the load terminals of the starter. Secure to 75 ft-lbs/102 N·m.

S H O C K H A Z A R DS H O C K H A Z A R D

Load cables must be securely attached to the starter load

terminals to reduce the impact of electrical arc at this location.

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4-20 Equipment Installation

4.9 Ground Bus Linking

Figure 4.30 – Ground Bus Links at the Front of the Cabinet

Slide bus links between sections in the slot. Secure the ground bus link

together with the adjoining section. Secure to 37 ft-lb/51 N·m.

S H O C K H A Z A R DS H O C K H A Z A R D

The ground bus links must be properly secured to ensure

the entire MV MCC line up is properly grounded.

7712-IN001B-EN-P – June 2013

Equipment Installation 4-21

4.10 Main Bus Linking After placing the starters in their ﬁ nal location, the best way to access the

main bus bars are through the top of the starter line up.

Place a ladder at the front of the starters and climb up to the top of the

starter section.

ATTENTION

You may ﬁ nd that you actually have to climb onto the

top MCC lineup. Please be aware that there are arc vents at the top that cannot have any force applied to them or they will fall in.

Arc Vents

Some of the bolts

securing top plate

Figure 4.31 – Top View of Cabinet from Front of the Starter

All 16 bolts securing the top plate must be removed before the top plate can be removed.

Once all 16 bolts have been removed, ﬂ ip back the hinged plate to make it

easier to remove the top plate.

7712-IN001B-EN-P – June 2013

4-22 Equipment Installation

Figure 4.32 – Open Top Plate Flap

Remove the top plate while ensuring that the arc vents are not damaged

when you remove the top plate.

Figure 4.33 – Top Plate Removed

7712-IN001B-EN-P – June 2013

Equipment Installation 4-23

Once the top plate is off, you will see a partition barrier that will easily

slide up and out of the cabinet.

Figure 4.34 – Inside View of MV Power Compartment

(with Partition Barrier removed)

Once removed, you will easily be able to access the bus bar assembly. The top

bus bar is phase A, the next, phase B and the bar at the bottom is phase C.

Figure 4.35 – Phase A, B, and C Bus Bar Connections

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4-24 Equipment Installation

Remove the two bolts securing the risers from phase B and C connections.

Starting from Phase C, slide the bus bar link from the left hand cabinet into

the right hand cabinet. Secure the bus bar link to the right hand cabinet bus bar and then to the left hand cabinet bus bar with the linkage hardware

provided. Secure the bolts to the speciﬁ ed torque value (37 ft-lb/51 N·m). . Next, slide the bus bar link from either the left or right cabinets for Phase B.

Secure the bus bar link to the right hand cabinet bus bar and then to the left

hand cabinet bus bar with the linkage hardware provided. Secure the bolts

to the speciﬁ ed torque value (37 ft-lb/51 N·m).

Next, slide the bus bar link from the left hand cabinet into the right hand

cabinet for Phase A. Secure the bus bar link to the right hand cabinet bus

bar and then to the left hand cabinet bus bar with the linkage hardware

provided. Secure the bolts to the speciﬁ ed torque value (37 ft-lb/51 N·m).

S H O C K H A Z A R DS H O C K H A Z A R D

All bus links should be securely attached to avoid risk of

electrical arc.

Figure 4.36 – Phase A, B, and C Bus Bar Connections

The ﬁ nal bus bar links should look like Figure 4.29.

Once the bus bars are connected properly, reverse the procedure from above.

1) Reinsert the partition barrier.

2) Replace the top cover plate.

3) Secure the top cover plate with the 16 bolts that were removed from before. Secure to 11 ft-lb/14.5 N·m.

7712-IN001B-EN-P – June 2013

Equipment Installation 4-25

4.11 Placing the Contactor Back into the Starter

Upon completion of 4.10, the whole starter must now be placed back

together as it originally was.

1) Re-install the Barrier Assembly from step 4.1.4.

2) Re-install the contactor cart from step 4.1.3.

3) Re-close the MV door from step 4.1.2.

W A R N I N GW A R N I N G

Failure to re-install all components to their original

functional state may lead to personal injury or death, property damage, or economic loss.

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4-26 Equipment Installation

7712-IN001B-EN-P – June 2013

Chapter 5

OneGear™ Standard Plenum Assembly Procedure

Procedure The following is an illustrated procedure for assembling the standard plenum

to OneGear™ cabinetry.

1. Use drawing 81021-288 as a general guideline for ﬁ xing the panels. This assembly drawing should be supplied with the order.

2. Identify the right materials necessary for this operation (see following ﬁ gures).

• Connecting brackets assembly to ABB switchgear, qty. 1 (81021-288-92/93)

• 7712/7719 Plenum assembly, qty. 2 (81021-288-91)

• OneGear connecting brackets assembly, qty. 1 (81020-288-91)

• If a 7712 or 7791 is ordered there will be an extension and end components included (81021-288-60/62, 81021-288-61, and 81021-28885/86/89/90)

• Hardware (M8 HHCS - 29107-304-04, Flat washer 19 mm (0.75”) OD, Flat washer 28 mm (1.125”) OD, Lock washer, M6 self-tapping screws 29171-640-01 for extension)

• 25 mm (1”) Gasket and silicone tube

Figure 5.1 – Components for plenum assembly

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5-2 OneGear™ Standard Plenum Assembly Procedure

3. Install the switchgear gas duct per manufacturer’s instructions (e.g. ABB UniGear type ZS1 – Standard Gas Duct Assembling Procedure).

4. Locate the ABB connecting adapter plate (81023-965-51/52) for connecting to the switchgear using M8 hardware (see Figure 5.2a).

Figure 5.2a – Attaching adapter plate to switchgear

5. Locate the front inner bracket (81021-958-51) for connecting to switchgear temporarily using M8 hardware (see Figure 5.2b).

Figure 5.2b – Attaching front inner bracket

6. Apply gasket to the bottom ﬂ ange of all front and rear assemblies (refer to Figure 5.3).

7712-IN001B-EN-P – June 2013

OneGear™ Standard Plenum Assembly Procedure 5-3

Figure 5.3 – Gasket location

7. Locate the mounting holes on top of the OneGear™ unit to mount the front and rear assembly (shown in Figure 5.4).

Mounting Holes (Rear)

Mounting Holes (Front)

Figure 5.4 – Mounting location for plenum

8. Take the rear plate (81021-070-01/02) of 7712/7719 plenum assembly, position it as shown in Figure 5.5a, and connect it to the adapter plate and OneGear top plate using the rear inner bracket (81021-961-51) and M8 hardware (M8 HHCS, 28 mm [1.125"] OD ﬂ at washers and lock washer).

7712-IN001B-EN-P – June 2013

5-4 OneGear™ Standard Plenum Assembly Procedure

Figure 5.5a – Attaching rear inner bracket and rear plate

9. Locate the top inner bracker (81021-959-51/52) for connecting to switchgear temporarily using M8 hardware (see Figure 5.2b).

Figure 5.5b – Attaching top inner bracket

10. Take the front plate (81021-068-01/02) of 7712/7719 plenum assembly, position it as shown in Figure 5.5c, and connect to OneGear top plate using M8 hardware (M8 HHCS, 28 mm [1.25"] OD ﬂ at washers and lock washer).

7712-IN001B-EN-P – June 2013

OneGear™ Standard Plenum Assembly Procedure 5-5

Figure 5.5c – Starter Plenum mounted on top of cabinet

11. Attach the outside backet (81023-075-02) at the front using M8 hardware (M8 HHCS, 19 mm (0.75”) OD ﬂ at washers and lock washers). Refer to Figure 5.6.

Figure 5.6 – Attaching front outer bracket

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5-6 OneGear™ Standard Plenum Assembly Procedure

12. Remove the temporary fastened hardware from Step 5; the front inner bracket should stay in place as a result of Step 11.

13. Attach the outer side bracket that is on an angle (81023-075-01) at the front of the plenum using M8 hardware (M8 HHCS, 19 mm [0.75"] OD ﬂ at washers and lock washer). Refer to Figure 5.7.

Figure 5.7 – Attaching front outer bracket on angle

14. Remove the temporarily fastened hardware from Step 9; the top inner bracket should stay in place as a result of Step 13.

15. Attach the top outer side bracket (81023-075-04/05) at the top of the plenum using M8 hardware (M8 HHCS, 19 mm [0.75"] OD ﬂ at washers and lock washer). Refer to Figure 5.8.

7712-IN001B-EN-P – June 2013

Figure 5.8 – Attaching top outer bracket

OneGear™ Standard Plenum Assembly Procedure 5-7

At this point, the OneGear™ SMC plenum should be completely attached

to the switchgear equipment. Apply silicone to gaps or holes located at bends and corners. Continue with installation of the OneGear™ plenum components.

16. Temporarily attach the inner rear and front bracket (81021-715-51) and top inner bracket (81021-716-51) using M8 hardware as shown in Figure 5.9.

Figure 5.9 – Attaching top, front and rear inner bracket

17. Take front and rear plates of 7712/7719 plenum assembly, position it as shown in Figure 5.10, and connect it OneGear top plate using M8 hardware (M8 HHCS, 28 mm (1.125”) OD ﬂ at washers and lock washer).

Figure 5.10 – Starter plenum mounted on top of cabinet

18. Attach the outside bracket (81021-272-02) at the front and rear using the M8 hardware (M8 HHCS, 19 mm (0.75”) OD ﬂ at washers and lock washer). Refer to Figure 5.11.

7712-IN001B-EN-P – June 2013

5-8 OneGear™ Standard Plenum Assembly Procedure

Figure 5.11 – Attaching front and rear outer bracket

19. Remove the temporary fastened hardware (only for front and rear inner bracket) from Step 16; the front and rear inner bracket should stay in place as a result of Step 18.

20. Attach the outer side bracket that is on an angle (81021-272-01) at the front and rear of the plenum using M8 hardware (M8 HHCS, 19 mm (0.75”) OD ﬂ at washers and lock washer).

21. Remove the rest of temporary fastened hardware from Step 16; the top inner bracket should stay in place as a result of Step 20.

22. Attach the top outer side bracket (81021-272-03) at the top of the plenum using M8 hardware (M8 HHCS, 19 mm (0.75”) OD ﬂ at washers and lock washer). Refer to Figure 5.12.

Figure 5.12 – Attaching top, front and rear outer bracket

7712-IN001B-EN-P – June 2013

5-9 OneGear™ Standard Plenum Assembly Procedure

Two sections of the OneGear™ plenum should now be fully installed . Apply

silicone to gaps or holes located at bends and corners.

23. If a Bulletin 7712/7791 product is ordered, an end plate (81021-28889/90) and extension with screen will be required (81021-288-60/62, and 81021-288-61). Install the end plate with M8 hardware.

If an end plate is ordered with no exit hole, it must be

I M P O R T A N TI M P O R T A N T

installed ﬁrst or it will be very difﬁcult to attach to the top plate, see Figure 5.13.

Figure 5.13 – One Gear unit on the end (7712)

24. Attached the extension to the end plate using M6 self-tapping screws. Subsequent extensions are attached using M8 hardware.

For Bulletin 7712and 7791 equipment, switchgear is provided on both

sides of the SMC. Therefore, Steps 4-15 will need to be repeated using the switchgear front and rear assembly.

7712-IN001B-EN-P – June 2013

5-10 OneGear™ Standard Plenum Assembly Procedure

7712-IN001B-EN-P – June 2013

Torque Values for Hardware

The following table contains the recommended torquing values for hardware required to fasten electrical connections (bus-bus or bus-ﬂ exible bus links).

Appendix A

Hardware

M6 6.0 4.4

M8 14.0 11.0 M10 29.0 21.0 M12 50.0 37.0 M16 124.0 91.0

Recommended Torque

N· m Lb.ft.

7712-IN001B-EN-P – March 2013