CENTURION SYSTEMS D 10 User manual

SLIDING GATE OPERATORS
Centurion Systems (Pty) Ltd
www.centsys.com
D10 SMART / D10 TURBO SMART /
D20 SMART
INSTALLATION MANUAL

After-sales
multi-language
Technical Support
Manufactures to
international
quality standard
ISO 9001:2015
100%
testing of
products
In-house
R&D
development
team
Centurion Systems (Pty) Ltd reserves the right to make changes to the product described in this
manual without notice and without obligation to notify any persons of any such revisions or changes.
Additionally, Centurion Systems (Pty) Ltd makes no representations or warranties with respect to
this manual. No part of this document may be copied, stored in a retrieval system or transmitted in any
form or by any means electronic, mechanical, optical or photographic, without the express prior written
consent of Centurion Systems (Pty) Ltd.
1986 1990 1995 1999 Today
Sales and technical support
to Africa, Europe, Asia,
the Americas, Australia
and the Pacic
Call Centre Operating Times
Monday to Friday
07h00 to 18h00 GMT+2,
Saturdays
08h00 to 16h30 GMT+2
Company Prole
ISO 9001:2015

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Contents
1. INTRODUCTION
1.1. Important Safety Information
1.2. Lightning Protection
1.3. Theft Protection
2. SPECIFICATIONS
2.1. Physical Dimensions
2.2. Technical Specications
3. PRODUCT IDENTIFICATION
4. REQUIRED TOOLS AND EQUIPMENT
5. NEW SITE INSTALLATION PREPARATION
5.1. General Considerations for the Installation
5.2. Endstops
5.3. Guide-rollers and Anti-lift Brackets
5.4. Starting and Running Forces
5.5. Cabling Requirements
6. LUBRICATION
7. OPERATOR INSTALLATION
7.1. New Site Installations
7.1.1. Locating an Initial Reference Point
7.1.2. Minimum Clearances
7.1.3. Locate the Operator's Position
7.1.4. Foundation Plate Installation
7.2. Retro-t Installations (Existing Sites)
7.3. Conduit and Cable Length
7.4. Preparing the Operator for Installation
7.4.1. Removing the Charger
7.4.2. Removing the Gearbox Trim and Battery Tray assembly
7.4.3. Removing the Control Card
7.5. Mounting the Gearbox
7.6. Routing the Cables
7.7. Manual Override
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7.8. Height Adjustment
7.9. Mounting the Rack
7.9.1. Fitting Steel Rack to the Gate
7.9.2. Finalising the Height Adjustment
7.9.3. Placing the Gearbox Mounting Washers, Spring Washers and Lock Nuts
7.10. Re-assembling the Operator
7.10.1. Placing the Gearbox Trim and Charger back into Position
7.10.2. Placing the Control Card back into Position
7.10.3. Reconnecting the Harnesses to the Control Card and Charger
7.11. Installing the Origin Sensor and Marker
7.11.1. Installing the Origin Sensor
7.11.2. Mounting the Origin Marker
7.11.3. Mounting the Origin Marker onto the Steel Rack
8. COMPLETING THE INSTALLATION
8.1. Fitting the Batteries
8.2. Accessory Installation and Storage
8.3. Wiring the Control Card on its Default Settings
8.3.1. Closing Infrared Beam Wiring (i5 Infrared Beams)
8.3.2. Closing Infrared Beam Wiring (Photon Infrared Beams)
8.3.3. External Radio Receiver and Loop Detector Wiring
8.3.4. G-ULTRA to D10 SMART / D10 Turbo SMART / D20 SMART Wiring
8.4. Commissioning the System
8.5. Apply Warning Decal
9. GENERAL MAINTENANCE
9.1. Gate Maintenance
9.2. D10 SMART / D10 Turbo SMART / D20 SMART Maintenance
10. INSTALLATION HANDOVER
11. WARRANTY INFORMATION
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CONTENTS
Icons used in this manual
This icon indicates tips and other information that could be useful during the
installation.
This icon denotes variations and other aspects that should be considered during
installation.
This icon indicates warning, caution or attention! Please take special
note of critical aspects that MUST be adhered to in order to prevent
injury.

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INTRODUCTIONSECTION 1
1. Introduction
The D10 SMART is a heavy duty sliding gate operator designed to open and close industrial
sliding gates weighing up to 1000Kg.
The D10 Turbo SMART is perfectly suited for sites with lighter gates requiring a high
number of operations per day, and can reach almost double the speed of the standard
D10 SMART for increased security. However, it is not suitable for gates weighing more than
250kg, as the inertia generated by heavier loads might prove detrimental to the gearbox
at such high speeds. Refer to Table 2 under Section 2.2. - "Technical Specications" for
derating speeds on heavier gates.
A die-cast aluminium gearbox, coupled to a powerful 24V DC motor and switch-mode
charger, makes the D10 SMART / D10 Turbo SMART the automatic choice for townhouse
complexes and oce parks.
The system operates o two 12V / 7.2 - 8Ah batteries housed inside the operator using a
switch-mode charger to maintain the battery in a fully-charged state. The batteries provide
critical power failure protection.
A non-contact Hall Eect Sensor ensures reliability and positional accuracy. The Hall Eect
Sensor is highly resistant to dust, oil, dirt and insect ingress, thereby ensuring that the D10
SMART / D10 Turbo SMART opens and closes gates reliably and accurately.
For industrial sites with large, heavy gates and high trac volumes, the D20 SMART oers a
powerful and reliable automation solution that can move gates weighing up to 2000kg.
This formidable operator has been designed to withstand the most demanding operating
conditions and work dependably in any environment thanks to its rugged die-cast aluminium
gearbox and potent DC motor. In addition, its sophisticated electronics and motor control
circuitry ensure that it moves smoothly with pinpoint stopping, further adding to the unit’s
reliability and longevity. Complementing its tough mechanical build, award-winning SMART
technology makes the D20 SMART as intelligent as it is solid.
Advanced features of the D10 SMART / D10 Turbo SMART / D20 SMART logic
controller include:
• Interactive graphic user interface via a smartphone application
• Automated setup of gate endpoints (limits)
• Independently-adjustable motor speed in both opening and closing directions
• Fail-safe collision detection and auto reverse (adjustable sensitivity)
• Smooth, adjustable start/stop (ramp-up/ramp-down)
• Multiple operational modes
• Selectable, adjustable Autoclose
• Pedestrian (partial) opening
• Positive Close Mode
• Independent safety inputs for opening and closing beams
• Automatic beam test for both opening and closing beams
• Advanced lightning/surge protection
• Onboard NOVA code-hopping radio receiver with full channel-mapping capability
(Limited to 1500 NOVA remotes with multiple buttons per remote)

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1.1. Important Safety Information
ATTENTION!
To ensure the safety of people and possessions, it is important that
you read all of the following instructions.
Incorrect installation or incorrect use of the product could cause
serious harm to people.
The installer, being either professional or DIY, is the last person on
the site who can ensure that the operator is safely installed and that
the whole system can be operated safely.
INTRODUCTIONSECTION 1
Warnings for the Installer
CAREFULLY READ AND FOLLOW ALL INSTRUCTIONS before installing the
product.
• All installation, repair, and service work to this product must be carried out by a
suitably-qualied person
• This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety
• Do not activate your gate unless it is in view and you can determine that its area of
travel is clear of people, pets, or other obstructions
• NO ONE MAY CROSS THE PATH OF A MOVING GATE —
always keep people and objects away from the gate and its area of travel
• NEVER LET CHILDREN OPERATE OR PLAY WITH THE GATE CONTROLS
• Secure all easily-accessed gate opener controls in order to prevent unauthorised use
of the gate
• Do not in any way modify the components of the automated system
• Do not install the equipment in an explosive atmosphere: the presence of ammable
gases or fumes is a serious danger to safety
• Before attempting any work on the system, turn o electrical power to the operator
and disconnect the batteries
• The Mains power supply of the automated system must be tted with an all-pole
switch with contact opening distance of 3mm or greater; use of a 5A hydraulic
breaker with all-pole circuit breaker is recommended
• Make sure that an earth leakage circuit breaker with a threshold of 30mA is tted
upstream of the system
• Never short-circuit the battery and do not attempt to recharge the batteries with
power supply units other than that supplied with the product, or manufactured by
Centurion Systems (Pty) Ltd

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INTRODUCTIONSECTION 1
• Make sure that the earthing system is correctly constructed and that all metal parts of
the system are suitably earthed
• Safety devices must be tted to the installation to guard against mechanical
movement risks such as crushing, dragging and shearing
• Always t the warning signs visibly to the inside and outside of the gate
• The installer must explain and demonstrate the manual operation of the gate in case
of an emergency and must hand over the User Guide/Warnings to the user
• The installer must explain these safety instructions to all persons authorised to use
this gate, and be sure that they understand the hazards associated with automated
gates
• Do not leave packing materials (plastic, polystyrene, etc.) within reach of children as
such materials are potential sources of danger
• Dispose of all waste products like packing materials, worn-out batteries, etc.,
according to local regulations
• Always check the obstruction detection system, and safety devices for correct
operation
• Neither Centurion Systems (Pty) Ltd, nor its subsidiaries, accepts any liability caused
by improper use of the product, or for use other than that for which the automated
system was intended
• This product was designed and built strictly for the use indicated in this
documentation; any other use, not expressly indicated here, could compromise the
service life/operation of the product and/or be a source of danger
• Everything not expressly specied in these instructions is not permitted
WARNING! WARNING! WARNING! WARNING! WARNING!
MOVING GATE CAN CAUSE SERIOUS INJURY OR DEATH!
KEEP CLEAR! GATE MAY MOVE AT ANY TIME!
DO NOT ALLOW CHILDREN TO OPERATE THE GATE OR PLAY IN THE
NEAR VICINITY OF THE GATE.
KEEP CLEAR!
GATE MAY MOVE AT ANY TIME!
SAFETY
FIRST

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The electronic controller utilises the same proven surge protection philosophy that is
used in all our products. While this does not guarantee that the unit will not be damaged
in the event of a lightning strike or power surge, it greatly reduces the likelihood of such
damage occurring. The earth return for the surge protection is provided via the mains
power supply earth and/or earth spike located next to the operator.
While care has been taken in the design of the D10 SMART / D10 Turbo SMART /
D20 SMART to prevent unauthorised removal (theft) of the unit, an optional steel theft-
deterrent cage is also available for added peace of mind. In addition, the system boasts
novel theft and break-in protection via an integral vibration sensor that can be connected
to a sound bomb or third party alarm system, or linked to an armed response company.
INTRODUCTIONSECTION 1
1.2. Lightning Protection
1.3. Theft Protection
In order to ensure that the surge protection is eective, it is essential
that the unit is properly earthed.
If a theft-deterrent cage is required, be sure to leave enough clearance from
pillars, etc. (Section 7.1.2. - "Minimum Clearances").

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SPECIFICATIONSSECTION 2
FIGURE 1. D10 SMART / D10 TURBO SMART / D20 SMART PHYSICAL DIMENSIONS
2. Specications
2.1. Physical Dimensions
2.2. Technical Specications
295mm
390mm
205mm28mm
64mm
1. The current values can be used to determine current consumption for battery life backup calculations.
D10 SMART D10 Turbo SMART D20 SMART
Input voltage 90V - 240V AC +/-10% @ 50Hz1
Current consumption (mains) 250mA
Battery charger current
output 1.8A@ 27.4V +/-1%
Maximum number of
operations per day 7503,6
Duty cycle - Mains present2,3 45% 25% 45%
Motor power supply Battery-driven
(Standard Capacity - 2x 12V 7.2Ah)
Current consumption
(motor at rated load) 8A 10A 9A
Input / Output sink currents (Max. accessory current draw)
I/O 1-4 100mA (12/24V)
I/O 5 and 6 3A (12/24V) 10sec Pulse
Motor push force - starting 40kgf 24kgf 52kgf
Motor push force - rated 30kgf 18kgf 39kgf
Gate mass - maximum 1000kg 250kg 2000kg
Gate length - maximum 50m 50m 25m
Gate speed (varies with load) Up to 26m/min4Up to 45m/min8Up to 18m/min4
Manual Override Lockable with key release
TABLE 1

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SPECIFICATIONSSECTION 2
2.2. Technical Specications Continued
TABLE 1 CONTINUED
TABLE 2
1. Can operate o a solar supply; consult your local dealer for assistance
2. Based on 25°C ambient temperature and unit not in direct sunlight
3. Based on a motor push force of less than 50% of rated (Starting and Running forces)
4. Gate opening and closing speeds can be congured to run slower depending on the requirements of individual installations
5. Can increase battery capacity for longer standby times
6. Based on 4m gate, excluding all accessories
7. Multiple buttons per remote can be used
8. Refer to the table below for D10 Turbo SMART’s recommended gate speed for specied gates masses
1. If a D10 Turbo SMART is used on a gate over 250Kg, the speed must be reduced according to the table above
to ensure that the gate can be safely stopped in an emergency.
2. Cenurion Systrems (Pty) Ltd recommends the use of a D10 SMART for gates weighing over 500KG.
D10 SMART D10 Turbo SMART D20 SMART
Operations in standby
(7.2Ah Batteries)
Operating Mode
Power
saving
15m/
min
15kgf
Normal
26m/
min
15kgf
Power
saving
15m/
min
9kgf
Normal
45m/
min
9kgf
Power
saving
15m/
min
20kgf
Normal
18m/
min
20kgf
Half day3,5,6 118 63 189 130 101 55
Full day3,5,6 93 50 150 104 80 45
Collision Sensing Electronic
Operating temperature
range -15°C to +50°C
Onboard receiver type Code-hopping multichannel receiver with
selective add and delete
Receiver code storage
capacity 1500 Remotes7
Receiver frequency 433.92MHz
Degree of protection IP54
Mass of unit packed (with
standard kit, but excl. rack and
battery)
13kg 13.5kg 13kg
Packaging dimensions (with
standard kit, but excl. rack and
battery)
350mm wide
x 282mm deep
x 470mm high
Fuse Protection Type Rating
Main Control Card Serviceable 25A
Aux. Supply Resetable Fuse 24V 3A (10sec Pulse)
Charger (Mains Supply) Non-serviceable 3A slow-blow
RECOMMENDED SPEEDS AND GATE MASSES FOR THE D10 TURBO SMART1
Max Speed (m/min) Gate Mass (Kg) Max Speed (m/min) Gate Mass (Kg)
45 250 29 6002
41 300 27 7002
36 400 25 8002
32 500 24 9002
23 10002

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PRODUCT IDENTIFICATIONSECTION 3
3. Product Identication
FIGURE 2. PRODUCT IDENTIFICATION
1
2
3
7
8
9
10
12
11
13
15
16
17
18
19
3
22
21
20
6
5
4
14
1. D10 SMART/ D10 Turbo SMART /
D20 SMART Cover
2. DX Control Card
3. 7.2Ah 12V Battery1
4. M10 Nut
5. Spring Washer
6. Gearbox Mounting Washer
7. Cable Shield
8. Hex Height Adjustment Bolt (x4)
9. Die-cast Aluminium Gearbox
10. Foundation Plate
11. Override Cam
12. Release Handle
13. Camlock
14. Gearbox Trim
15. Cable Trunking
16. Earth Harness
17.
Switch-mode Charger 27.4V 1.8A
18. Battery Harness
19. Power Supply Harness
20. Top Battery Stabiliser
21. Accessory Retaining Door
22. Accessory Tray
1. Batteries are not supplied with the D10 SMART / D10 Turbo SMART / D20 SMART.

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REQUIRED TOOLS AND EQUIPMENTSECTION 4
4. Required Tools and Equipment
FIGURE 3. REQUIRED TOOLS AND EQUIPMENT
Ratchet and
Socket set
(12mm and 17mm)
with extensions
Crimping tool
and Pin lugs
Masonry drill bits
Connector
block
Angle grinder
Pin punch
6mm
Hacksaw
Spirit level
Marking
pen/chalk
Extension cord
Soldering
iron
Safety equipment
(goggles, gloves, etc.)
Welding machine
(including consumables)
and safety equipment
Measuring
tape
G-clamps
(x2)
Electric Drill
Screwdrivers
6mm Phillips
3.5mm Flat
Hammer
Smartphone
with app
installed
Pliers

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NEW SITE INSTALLATION PREPARATIONSECTION 5
5. New Site Installation Preparation
5.1. General Considerations for the Installation
Always recommend the tment of additional safety equipment such as safety edges
and safety beams, for additional protection against entrapment or other mechanical
risks.
Check that no pipes or electrical cables are in the way of the intended installation.
Check that enough space is available for the gate operator, specically for the
release handle, and removal of the Gearbox Trim (See Section 7.1.2. - "Minimum
Clearances").
Check for loose, sandy soil if installing a foundation, as the soil condition may require
a larger foundation.
Never t the operator on the outside of the gate, where the public has access to it.
Install the gate operator only if:
• It will not pose a hazard to the public
• There is sucient clearance to a roadway and/or public thoroughfares
• The installation meets all municipal and/or local authority requirements once completed
• The gate mass and application are within the operator specications
• The gate is in good working order, meaning:
• that it opens and closes freely;
• does not move on its own if left in any position;
• it can be installed to have sucient clearance between moving parts when
opening and closing to reduce the risk of personal injury and entrapment;
• Pushbuttons or key-switches, when required, must be positioned so that the gate is in
line-of-sight of the user

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5.2. Endstops
5.3. Guide-rollers and Anti-lift Brackets
Fit opening and closing endstops capable of stopping the gate at rated speed. Refer to
the specications at the beginning of this manual for the operating speed.
Make H1>H2 to ensure gate will not jump over the endstop.
Guide-rollers must be installed to ensure that the gate is held vertical. For improved
safety, t additional support posts to prevent the gate from falling over should the
guide-rollers fail.
To prevent unauthorised access, t anti-lift brackets as shown.
The gap between the anti-lift bracket and the gate must be less than 5mm.
FIGURE 4. FITTING ENDSTOPS
FIGURE 5. FITTING GUIDE-ROLLERS
Opening and closing endstops are mandatory and must be tted to
prevent death or accidental injury as the operator uses and conrms
these limits during operation.
Endstop
Endstop
Ø16mm
H1 H2
Ensure that the gate cannot be lifted o the motor pinion with the anti-lift
bracket tted.
GAP <5mm
GAP <5mmGAP <5mm
GAP <5mm
Additional
support post
Guide-rollers and
Anti-Lift Bracket
Side view of gate and dierent
Guide-roller options
NEW SITE INSTALLATION PREPARATIONSECTION 5

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5.4. Starting and Running Forces
NEW SITE INSTALLATION PREPARATIONSECTION 5
Test the starting force of the gate as per Figure 6. Use a pull scale in both directions to
determine the maximum amount of pull force required to set the gate in motion.
Determine the running force of the gate by continuing to pull on the scale with just
sucient force to keep it running.
Read and note the maximum value in kgf (kilogram-force) shown on the scale.
Where possible, determine the gate mass.
Our warranty will be void if the pull force and / or gate mass exceeds the below operator
specications:
D10 SMART
• Starting force - 40kgf
• Running (rated) force - 30kgf
• Maximum gate mass - 1000kg
D10 Turbo SMART
• Starting force - 24kgf
• Running (rated) force - 18kgf
• Maximum gate mass - 250kg
D20 SMART
• Starting force - 52kgf
• Running (rated) force - 39kgf
• Maximum gate mass - 2000kg
FIGURE 6. STARTING AND RUNNING FORCES
Pull Scale

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5.5. Cabling Requirements
NEW SITE INSTALLATION PREPARATIONSECTION 5
FIGURE 7. CABLING REQUIREMENTS
Legend
1. MAINS SUPPLY CABLE: 90V - 240V AC mains cable via double-pole mains
isolator-switch (3 core L.N.E. 1.5mm2SWA)1,2
2. Optional intercom cable from motor to dwelling
(n1 + 6 core30.22mm2multi-strand shielded cable)
3. Optional intercom cable from motor to entry panel
(n2 0.22mm2multi-strand shielded cable)
4. Optional but recommended infrared safety beams
(3 core 0.22mm2multi-stranded)4
5. Optional access control device (3 core 0.22mm2multi-stranded)
6. Optional pedestrian key-switch (2 core 0.22mm2multi-stranded) OR
7. Optional keypad (3 core 0.22mm2multi-stranded)4
8. Optional external radio receiver (3 core 0.22mm2multi-stranded)5
9. Optional pillar lights (3 core LNE SWA, size according to power requirements)6
10. Optional ground loop for free-exit
(1 core 0.5mm2multi-stranded – silicone coated)7
n1 means the number of cores required by an intercom
n2 means the number of cores required by an intercom
1. Possibly increase cable thickness if pillar lights are installed.
2. Type of cable must adhere to municipal bylaws but typically SWA (steel wire armoured) cable is recommended.
The armouring provides excellent screening, which gives better protection against lightning – earth one end of the screening).
3. Allows for all features such as pedestrian opening, status LED, etc., to be operated from the intercom handset inside the dwelling.
Number of cores and type of cable could vary depending on brand of access control system being used.
4. Wireless accessories are available. Please refer to www.censys.com for further information.
5. For optimum range, an external receiver can be mounted on the wall.
6. Requires an external relay
7. Consult manufacturer of loop detector for specic details.
5
6
4
1
2
3
8
9
9
10
7

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LUBRICATIONSECTION 6
6. Lubrication
The internal gearset of the D10 SMART / D10 Turbo SMART / D20 SMART is
lubricated by means of an oil bath.
The D10 SMART / D10 Turbo SMART / D20 SMART is supplied with oil in
its gearbox and does not require routine oil changes.

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OPERATOR INSTALLATIONSECTION 7
7. OPERATOR INSTALLATION
7.1. New Site Installations
7.1.1. Locating an Initial Reference Point
When installing the D10 SMART / D10 Turbo SMART / D20 SMART, it is
important to take note of the information found in Sections 7.1.1. and 7.1.2.
when determining the position of the Foundation Plate, and the height of the
D10 SMART / D10 Turbo SMART / D20 SMART in relation to the gate that is
to be automated.
Once the point which protrudes the furthest has been found, this will be the
reference point to be used when nding the optimum position for the
D10 SMART / D10 Turbo SMART / D20 SMART.
FIGURE 8. FINDING A REFERENCE POINT
Firstly, it is necessary to establish a reference point. To do this, manually open and close
the gate so that it moves past a stationary point (i.e. a vertical spike), and determine
which part of the gate (including its wheels) protrudes the furthest towards where the
D10 SMART / D10 Turbo SMART / D20 SMART will be installed. Refer to the
examples shown below.
Check for wheels, palisade, uprights, etc. that could potentially collide
with the pinion.
Foundation
for D10 SMART /
D10 Turbo SMART
/ D20 SMART
GATE MOVEMENT
Gate Rail
Edge that
protrudes
the furthest
(Reference Point)
Warped Gate
Palisade
GATE MOVEMENT
Gate Rail
Edge that
protrudes out
the most
(Reference Point)
Gate
Palisade
GATE MOVEMENT
Foundation
for D10 SMART /
D10 Turbo SMART
/ D20 SMART
Gate Rail
Edge that
protrudes
the furthest
(Reference Point)
Gate
Palisade
GATE MOVEMENT
Gate Rail
Edge that
protrudes out
the most
(Reference Point)
Gate
Palisade
GATE MOVEMENT
Foundation
for D10 SMART /
D10 Turbo SMART
/ D20 SMART
Gate Rail
Edge that
protrudes
the furthest
(Reference Point)
Gate
Palisade
Possible
Collision
GATE MOVEMENT
Gate Rail
Edge that
protrudes out
the most
(Reference Point)
Gate
Palisade
Foundation
for D10 SMART /
D10 Turbo SMART
/ D20 SMART
GATE MOVEMENT
Gate Rail
Edge that
protrudes
the furthest
(Reference Point)
Gate
Palisade
Gate Wheel
Possible
Collision

page 19 www.centsys.com
Gate Rack
OPERATOR INSTALLATIONSECTION 7
7.1.2. Minimum Clearances
Below are site plan examples illustrating the minimum clearances required when
installing the D10 SMART, D10 Turbo SMART or D20 SMART.
FIGURE 9. MINIMUM CLEARANCES - SIDES
FIGURE 10. MINIMUM CLEARANCES - FRONT
120mm
175mm
Pillar
Foundation
Trench
Trench
Gearbox
Trim
Trench
Most
extreme
path of
the Override
Lever
Gate Rack
Pillar
Theft-deterrent Cage D10 SMART / D10 Turbo SMART
/ D20 SMART
Foundation
20mm (Minimum)
40mm and above(Ideal)
20mm (Minimum)
40mm and above(Ideal)

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OPERATOR INSTALLATIONSECTION 7
D10 SMART - Steel Rack
FIGURE 11. STEEL RACK ABOVE PINION
1. Includes 3mm clearance required between rack and pinion
2. Distance between bottom of the Foundation Plate and bottom edge of the Rack Tooth
If there is space to mount the rack underneath without fouling the ground as the
gate moves, the following are the pros and cons:
Pros
• The rack is more hidden from view
• It provides a very eective anti-lift bracket
• It ensures that, since the gate beds in, the rack does not drop onto the
pinion, loading the operator unnecessarily
Cons
• Rack teeth face up vertically, potentially collecting dirt
• Could require the use of a custom bracket
To ensure that the operator does not protrude into the driveway, install the base plate at
least ush with the driveway entrance.
It is typical to mount the rack above the pinion as shown in Figures 11, 13 and 15.
However, Figures 12, 14 and 16 shows the rack mounted underneath.
7.1.3. Locating the Operator's Position
The measurements given below are based on the rack supplied by
Centurion Systems (Pty) Ltd and are to be used as guidelines only.
5mm
25mm
91mm
121mm1,2
176mm1
25mm
(Typical Steel
Rack Width)
Flat bar welded
to Foundation Plate
and rail
Concrete Foundation
(Recommended to allow for adjustment)
Minimum space from edge
of Foundation Plate to
reference point of edge that
protrudes the furthest.
(Section 7.1.1.)
Foundation Plate
50mm
The principles of installation on a Steel Rack is to position it in the middle of the
output pinion with the operator fully forward on the slots.