Brookfield Industries NB-500 User manual

brookfield industries, Inc.
Commercial I Industrial Door Operator Manual
CE
SWINGING AND SLIDING DOOR OPERATORS FOR LEAD
SHIELDED DOORS
041 ER re
t
C
(
1
1
(
1
0
T
1
0
)
US
osTeo
For Operator Model Numbers:
NB-500
y
NB-
100
0
y
NB
-2
00
0
y
N
B
-2
0
0
0
H
D
y
NB-4000
y
and
NB
-41
00
99 West Hillside Ave.
Thomaston, CT 06787
Phone: [phone]
Fax: [phone]
www.brookfieldindustries.com
[e-mail]

brookfield industries, inc.
NB-4000
COMMERICAL/INDUSTRIAL
SLIDING
DOOR OPERATOR
MANUAL
(7th Edition 9/1/09)
7th edition incorporates all UL 325 revisions dated 8/29/09 and ETL/c Listing
US Patent No. 6,177,771 B1

Table of Contents
•Important Instructions for Installation
•Important Safety Instructions
•Overview
•Installation Instructions
•Installation Instructions for Emergency Hand wheel
•GT-01 DAU Instructions
•I/O Diagnostics
•Door Position Setup Instructions
•Drawings: NB-1061K-AA-2, NB-4000-A-2, NB-4000-AA, NB-4000-BB, NB-
4000-CC and NB-4000-21
•Terminal Strip Hookup Legend (Power Supply and Class 2 Voltages)
•Wiring Diagrams
•Parameters for NB-4000 Sliding Door Operator
•Maintenance Intervals
•Safety Systems and Battery Backup Test Intervals
•Limited Warranty
•Sliding Door Operator Troubleshooting

WARNING!
IMPORTANT INSTALLATION INSTRUCTIONS
IMPROPER INSTALLATION CAN LEAD TO SEVERE INJURY OR
DEATH
READ AND FOLLOW ALL INSTRUCTIONS
•Commercial/Industrial Sliding Door Operator shall be installed more than 8’ above the floor
•Install only on a properly operating and balanced door within the rated values for door weight, door width and
operating forces as stated on the ratings label
•Do not connect door operator to source of power until instructed to do so
•This door operator shall be installed and serviced by a qualified technician, electrician or electrical maintenance
person familiar with its operation and the potential hazards involved.
•Any person performing installation or service on this product shall read this manual first. Proper installation includes
following all steps outlined in the Installation Instructions and the settings specified under the Parameters section.
•Assure all electrical wiring and grounding is installed as specified in this manual and as required by any local codes.
Proper installation can also reduce the risk of electrical shock, fire or explosion.
•Locate activation switches or push button stations: (a) within sight of the door, (b) at a minimum height of 5’ so small
children cannot reach and (c) away from moving parts of the door.
•Install the Entrapment Warning Placard next to the activation switches in a prominent location
•As described in this manual, the Stop command controlled by the motor drive is not intended to be a fail safe or
Emergency Stop (E-Stop) since it does not prevent the motor drive from malfunctioning. This can only be
accomplished by disconnecting the AC power to the operator (terminals L1 and N).
•This door operator is to be a permanent or “hard” wired connection to the supply voltage. The electrical contractor
shall install a dedicated breaker or line switch to disconnect each ungrounded pole of the door operator from the
supply voltage. Each ungrounded pole shall have a minimum of 3mm contact separation.
•If this model is equipped with a manual release, disengage pin(s) between door and door operator before manually
moving the door.

WARNING!
IMPORTANT SAFETY INSTRUCTIONS
IMPROPER USAGE CAN LEAD TO SEVERE INJURY OR DEATH
READ AND FOLLOW ALL INSTRUCTIONS
•Commercial/Industrial Sliding Door Operator for trained traffic* use only. The manufacturer of this product does not
include external safety devices as a standard feature.
•External safety devices are required on this door operator. Refer to the Terminal Strip Hookup in this manual for proper
wiring and to the owner’s manual of the external safety device manufacturer for proper installation and use.
•No person shall perform any service or activate this door operator unless they have been properly trained in its safe
usage and have read the owner’s manual.
•Never let children operate or play with door controls.
•Before activating this door operator, check the following:
1. Assure that all personnel are clear of the path of this operator and the door that it is attached to.
2. Assure that all fingers, hands, feet, limbs and articles of clothing are clear of all moving parts and pinch points.
•Personnel should keep away from a door in motion and keep the moving door in sight until it is completely closed or open.
NO ONE SHOULD CROSS THE PATH OF A MOVING DOOR.
•Test the door’s safety features at least once a month. After adjusting either the force, speed or the limit of travel, retest
the door operator’s safety features. Failure to do so may cause severe injury or death.
•KEEP DOORS PROPERLY OPERATING AND BALANCED. Refer to door manufacturer’s manual. Have repairs done
by trained technicians.
•Prior to performing any service on this product (including the replacement of any fuses or circuit breakers), disconnect the
operator from the supply voltage.
•For continued protection against fire, replacement fuses or circuit breakers shall be of the same type and ratings as those
being replaced.
*Defined in ANSI 156.10 as a controlled group of people trained in the safe use and operation of a particular door installation.
SAVE THESE INSTRUCTIONS

Overview
The NB-4000 Commercial/Industrial Sliding Door Operator has been designed, tested
(over 500,000 cycles) and manufactured by brookfield industries, inc. for linear
accelerator sliding doors weighing up to 30,000 lbs with a maximum travel of 60” and
horizontal operating forces up to 700 lbs and linear speeds not to exceed 4.5 in/sec. If any
one of the following: horizontal operating force, weight, travel, speed or cycles exceeds the
rated value, please contact the Engineering Department for further evaluation.
The NB-4000 is designed to be mounted directly to the top or front of the same horizontal
beam that supports a linear motion system. The NB-4000 can also be modified for wall
mounted applications, such as those used in bottom roller supported doors.
This power open/power close electro-mechanical operator with its state of the art
components, make it the strongest, most reliable and easiest to install in the industry today.
Refer to the Terminal Strip Hookup for all open, partial open, close, stop and External
Safety Device inputs, which are all Class (2) 24VDC normally open momentary contact
(except the stop input, terminal #10, which is a normally closed input). Power supply
hookups for both Class (2) 24VDC, 110VAC and 230VAC(European installations) are also
indicated. The PLC then processes all this information, in addition to many other features
for proper control of these heavy lead doors. This door operator is patented under US
Patent No. 6,177,771 B1.
The NB-4000 Commercial/Industrial Sliding Door is compliant with UL 325 Section 30.2
External Entrapment Protection (Fail Safe/Self-Monitoring) providing all External Safety
Devises are wired and installed per this manual.
We are Authorized to Mark the NB-4000 with the ETL (US and Canada), and CE markings
from Intertek Testing Services to assure compliance with UL 325(Control No. 3011624),
FCC Part 15 (Emissions) and the following International Standards: EN 60335-1 and -2
(Safety), EN 61000-6-2 (Immunity), EN 61000-6-4 (Emissions), CAN/CSA-C22.2 and ICES-
003. The “listing” reports specifically refer to the heavy commercial/industrial doors
associated with linear accelerator rooms.
Logic Control:
This Operator offers the latest technology in PLC (Programmable Logic Control). The
following (3) modules snap to a DIN rail base:
CPU (Central Processing Unit)- processes and stores data in its internal register such as
door position presets, inputs from pushbutton stations and outputs to motor controls. This
extremely compact unit houses (8) LED 24 VDC inputs and (6) LED outputs with (3) isolated
commons.

Analog/Digital Converter- converts the analog signal of the Rotary Position Transducer to
a digital value.
Class (2) 24 VDC Power Supply- converts 110 supply voltage to Class (2) 24VDC power
to operate the CPU, A/D converter, Rotary Position Transducer and presence sensors.
These plug-in modules with LED make diagnostics and replacement of parts easy and quick
to perform.
Interface with the PLC is necessary to adjust Door Position Presets in the field. This is
accomplished by plugging in an 8- Pin Phoenix connector to the back of the Data Access
Unit (DAU) and a round female connector into the side panel of the operator. The DAU is a
hand held, touch screen device that is purchased separately.
The CPU has been programmed to adjust on the fly, such door position presets as Back
Check, Full Open, Latch Check and Full Closed. In addition, we’ve included a Partial
Open preset as required on most Linac Doors in the marketplace today.
Input commands to be processed by the PLC, are done so by making the appropriate
connections on the Terminal Strip Hookup. By connecting separate normally open
(SPST) switches between terminals 1 and 14 to open, terminals 1 and 13 to partially open,
terminals 1 and 12 to close and a normally closed (SPDT) switch to terminals 1 and 10 to
stop the door, provides the customer discrete control of each input from a momentary
contact push button station (not included). These commands can also be activated by
presence sensors, or control mats. Reversing the direction of the door while it’s moving
(dynamic) can be accomplished by simply pressing the appropriate switch to change
direction.
The NB-4000 features momentary contact Input commands for External Safety Devices
that comply with Entrapment Protection of UL 325 Section 30.2(Fail Safe/Self-
Monitoring). These devices are door mounted, 4-wire reversing edge contact type
sensors that reverse the door while closing. Note: The door will not be allowed to close
unless these sensors are correctly wired per this manual. When installing contact type
sensors, assure that they are properly secured to the leading edge of the door and that a
sufficient quantity of sensors are properly spaced and are of adequate length to assure safe
operation. Momentary contact Input commands and a low voltage Class (2) power
supply are also provided for additional (redundant) sensors, such as non-contact type
presence sensors that are frame mounted. brookfield industries does not manufacture
nor do we include External Safety Devices with any of our door operators. In order to
assure that external safety devices are properly installed and adjusted correctly, refer to the
owner’s manual for that particular devise. For proper wring, refer to Terminal Strip
Hookup and the Wiring Diagram included in this manual.
The Stop command (normally closed terminal #10) will stop the door in any position when
activated but it will not prevent a motor drive from malfunctioning nor is it a true emergency
stop. Emergency Stop (E-Stop) can only be accomplished by disconnecting AC
power to the operator (Terminal L1 and Terminal N).

A 24 volt, 14Ah Battery Backup System with a float charger is included that will
automatically open the door at design loads anytime power is interrupted. This assures that
the same level of safety is provided at all times in order to reduce the chance of personal
injury.
The NB-4000 features the same Absolute Position Feedback Control system and
software as other brookfield industries, inc. door operators. There are no limit or
proximity switches to adjust or install for any of the door positions under normal operation.
Simply adjust the door’s positioning presets as required by interfacing with the PLC via a
hand held Data Access Unit (purchased separately).
A Rotary Position Transducer attached to the worm gear output shaft provides the
position of the door. As the door changes position, the output signal from the transducer
varies in value. This signal, once converted to a digital value, is stored in the CPU for
further processing. This devise does not need to be “homed” or reset if there is a power
loss or electrical noise nor does it need to go through “learn speed” after power up or after
adjustments have been made.
Motor Control:
The NB-4000 uses a state of the art Regenerative (4-Quadrant) 90 VDC Motor Control.
This provides the best assurance that the door’s high inertia characteristics will not
“overhaul” (or “freewheel”) the motor; thus, resulting in controlled door motion. The NB-
4000 now features a multi-speed board that attaches to the top of the motor control. The
logic panel is greatly simplified with the elimination of the external speed pots and the
associated wiring. The new multi-speed board features control of (4) independent speeds.
The NB-4000 now has the flexibility of controlling separate creep close speeds (Preset 1)
and creep open speeds (Preset 2) as well as close speeds (Preset 3) and open speeds
(Preset 4). The motor control also features additional trimpots, which greatly improve the
performance of the drive and motion profile of such heavy doors. The DB (Dead Band)
trimpot sets the amount of main speed trimpot rotation to initial output voltage and controls
the amount of delay before regeneration starts. If not properly set, the motor may oscillate
or continue to hum. The RESP (Response) trimpot adjusts the dynamic response of the
system; therefore, increasing this setting will increase response time( if set too high ,
unstable operation may result). The IR Comp trimpot determines the amount in which the
motor speed is held constant as the motor load changes. For example, if set too low, the
motor may not obtain the desired speed fast enough or not at all. If set too high, the motor
may oscillate. The RCL (Reverse Current Limit) trimpot and FCL (Forward Current Limit)
trimpot adjusts the armature current limit or motor torque in their respective directions.
When properly set, the operator will have sufficient torque to operate in both directions,

while at the same time limiting the current to the motor. This will prevent damage to any of
the mechanical components of the door operator (also eliminates the need for unreliable
and hard to adjust manual slip or electromagnetic clutches).
The MAX (maximum speed) trimpot adjusts the voltage or speed of the motor in the forward
and reverse directions. The FACC (Forward Acceleration) trimpot adjusts the acceleration
time in the forward direction as a function of the maximum rated motor speed. It also
controls the Reverse Deceleration time. The RACC (Reverse Acceleration) trimpot adjusts
the acceleration time in the reverse direction as a function of the maximum rated motor
speed. It also controls the Forward Deceleration time.
Overload Protection for the DC motor is provided by using the appropriate line fuse to the
110VAC power supply of the motor control (see wiring diagram) and by the proper setting of
the Reverse Torque and Forward Torque trimpots, which controls the amount of DC
current to the motor in both directions.
Drive Train:
The NB-4000 is an electro-mechanical, power open/power close sliding door operator,
which converts rotary motion from a 56C, 3/4 HP 90VDC, 1750 RPM Motor and 6.3:1 In
Line Reducer to linear motion via a 1” diameter x 1” lead Precision Ball
Screw/Nut Assembly. The ball screw shaft is supported by a unique Rigid End Block
+Tensioning System. These blocks support the ball screw shaft in the most rigid
configuration of end fixity or what is referred to in engineering terms as the fixed end-fixed
end mode. The (2) precision bearings used in each support block are designed specifically
for ball screws and are positioned in such a manner that places the ball screw shaft in
tension only, no matter what direction the load is applied in. This design allows the ball
screw to operate at the highest possible speeds and forces without exceeding what is
known as the critical column strength or the critical rotational speed.
The ball nut assembly features a grease fitting for periodic maintenance and is equipped
with end wipers to keep grease in and dirt out of the nut assembly.
Supply Voltage:
115 VAC, +/- 10%, 50/60 Hertz, single phase. Motor control and power supply are
equipped with in-line circuit breakers. Surge protection and filtering of the supply voltage is
featured to protect door operator components and to assure reliable performance
(immunity) as well as minimizing RF noise (emissions).
For European installations we offer a 230 VAC single phase to 115 VAC step down, 1.5
KVA transformer. The transformer and surge protection are housed in a NEMA 1 enclosure
ready to be field wired from the supply voltage to the door operator.

Manual Operation:
In case of loss of power, manual operation shall be less than 50 lbs to open per UL 325
29.3. This is accomplished by engaging a flexible shaft into the rear shaft of the motor via a
remote control cable. A lever arm, which activates the remote control cable, and a 7”
diameter hand wheel, which is connected to the flexible shaft, are contained in a NEMA 1
box. Approximate opening time, while manually operating the hand wheel, is about 2.5
minutes. Important: the flexible shaft shall not be engaged to the motor unless power
to the operator has been interrupted.
Battery Backup (standard):
When power is interrupted, and if the door is in any position other than fully open, the
battery backup will be activated and provide low voltage DC power directly to the motor.
The system is designed to open the door once for each power interruption at a constant
speed. This system is not designed to open and close the door repeatedly. A float
charger is included to provide a constant charge on the battery. These components are
installed in a NEMA 1 box with a test switch that will interrupt power and allow for testing the
system. Also included is an end of travel limit switch, which must be installed so that it
disconnects power to the motor when the door is fully open. (this limit switch is only for use
in battery backup mode and not for normal operation).
This is a redundant system and does not replace or substitute any requirements of UL 325
section 29.3 Interruption of Power for manual operation.
Assure used batteries are disposed of at the appropriate drop off center.

brookfield NB-4000 Door Operator Installation Instructions
Although each Door Operator has been fully inspected and tested prior to shipment, assure that no
physical damage has occurred during shipping and handling. Premature failure of the ball screw/nut
assembly may occur if it’s not installed properly.
1. Drill and tap mounting holes for the beam and carriage per layout on drawing NB-4000-AA.
Position NB-4000 Door Operator on top of beam per drawings NB-4000-BB or on side of beam
per NB-4000-CC.
2. Install (8) 1/8” slotted and tabbed shims at each beam mounting bolt. This will allow for 1/8” minus
adjustment, if necessary. Properly tighten the (8) 3/8” x 16 mounting bolts and lock washers.
3. Mount Ball Nut Attachment Bar (1” x 4” aluminum) to the carriage with (8) 3/8” x 16 socket head
cap screws and assure they are properly tightened.
4. Measure the height from the Rigid End Blocks to the machined surface of the linear motion
system. This dimension is shown as DIM. B on drawing NB-4000-BB or NB-4000-CC at each end
of the ball screw. Now measure DIM. A, the distance from the Ball Nut Mounting Block to the
machined surface. The difference between DIM A and DIM B, shall not exceed 1/8”. If required,
adjust the height of the Rigid End Blocks with the shim pack included.
5. Measure the height from of the Ball Nut Attachment Bar at (2) locations, DIM C and DIM D (see
NB-4000-BB and NB-4000-CC). The difference between DIM C and DIM D shall not exceed 1/16”
(shim as required).
6. Check lateral alignment of ball screw centerline with the centerline of the linear motion system.
Over the 116.25” distance, the maximum deviation shall not exceed 1/8” off the linear motion
centerline (see NB-4000-AA).
7. Check lateral alignment of ball nut attachment bar (1” x 4”) to the centerline of the linear motion
system by employing the same techniques as previously mentioned for the ball screw. The
maximum deviation across the attachment bar length shall not exceed 1/16” for bars 28” long and
less (see NB-4000-AA).
8. Install Emergency Hand wheel NEMA 1 box and flex shaft as indicated on NB-4000-21.
9. Caution: To prevent risk of serious injury, assure source voltage has been disconnected and all
“Lock-Out” Safety Procedures have been strictly adhered to.
10. Caution: Hookup 115VAC supply voltage (230VAC supply voltage for European installations) and
grounding per Terminal Strip Hookup the applicable Wiring Diagram and/or local codes.
11. Connect DC motor leads to Class (2) 24VDC positive battery post.
12. Connect all Class (2) (24) VDC inputs per the Terminal Strip Hookup and the Wiring diagram
including required External Safety Devices (not included with operator) that comply with the
Entrapment Protection of UL 325 Section 30.2 (Fail Safe/Self-Monitoring).
13. These devices are door mounted, 4-wire reversing edge contact type sensors that reverse the
door while closing. Note: The door will not be allowed to close unless these sensors are
correctly wired per this manual. When installing contact type sensors, assure that they are
properly secured to the leading edge of the door and that a sufficient quantity of sensors are
properly spaced and are of adequate length to assure safe operation.
14. Attach the limit switch provided for battery backup end of travel mode. This should be between 1-2”
past the fully open position, when properly adjusted. Assure adequate clearance exists between
the door carriage and the door operator mounting plates, once the limit switch has been activated.
15. Connect the (2) unattached leads to the positive terminal of the battery.
16. Disconnect “Lock-Outs” and turn on power supply breakers.
17. All PLC and motor control settings have been preset by brookfield industries, inc.; however, we
recommend these values be double-checked with the Parameter for NB-4000 sheet supplied.
18. Assure external speed “Pots” are set to the 10-20% range activating the operator.

19. Assure all Safety Instructions and Warnings have been followed.
20. Activate Open, Partial Open and Close Commands.
21. Adjust Open, Partial Open and Close speed “Pots” clockwise to the 65%-70% maximum setting.
22. Adjust Creep “Pot” until a smooth stop has been obtained (20-30% range).
23. Adjust PLC door position factory presets as required. Refer to the Door Position Setup and DAU
Instructions and the NB-4000 Parameters sheet if necessary.
24. Be prepared to hit stop button in case any obstacles are encountered.
25. For fine tuning of door position presets, it may be helpful to note that for every 1” of linear travel the
change in digital values viewed from the Data Access Unit is approximately 34; therefore, for 57” of
travel the change in values 1938.
26. Check and adjust, if necessary, the trimpot settings (refer to the Parameter sheet) on the Motor
Control.
27. Check operation of the battery backup system by disconnecting operator from the AC source. The
door, if in motion or stopped, should automatically open once power is disconnected.
28. Check operation of all other safety devices.
29. Operate the door several times assuring all inputs, such as open, close, partial open and stop
features function properly. Make the necessary adjustments to the factory preset door positions as
required.

12
Instructions for Installation
Remote Actuator Cable to the Emergency Handwheel Flex Shaft
(Revised 6/8/2006)
1. If this is a new installation, skip down to step #7.
2. If upgrading to remote disconnect, go to step #3.
3. Mount Emergency Handwheel box to the wall, run cables to the back
end of the motor.
4. Unbolt 5/16”-18 bolts from gear reducer, place aside.
5. Place the attachment plate for the remote actuator beneath the upper
mounting plate of the gear reducer.
6. Bolt the remote actuator attachment plate and the gear reducer to the
upper mounting plate using 5/16”-18 x 1 !” bolts. DO NOT TIGHTEN.
7. Remove detent screw from square hole bushing on shaft extension
of motor.
8. Attach remote actuator cable block to attachment plate with "”-20 x
1 3/4” Allen head cap screws. DO NOT TIGHTEN.
9. Using lever in the emergency handwheel control box, gently pull
lever towards you and turn the handle until the #” square end of the
flex shaft is inserted into the square hole bushing on the back of the
motor; and cable lever locks into place.
10.Tighten the "”-20 screws on the remote actuator cable block.
11.Tighten upper mounting plate screws.
12.To release lever, push red button in on the emergency handwheel
lever and push forward towards the back of the box until it locks in
place.
13.Test 3 or 4 times by releasing and re-engaging and rotating the
motor each time.
***Caution***
Before using door operator, assure that the flex shaft is fully
disengaged by pushing lever arm forward until it is locked in place and
closing the door on Nema 1 box.

GT-01 DAU Instructions
GT-01 Touch Screen
2. A “Please Wait” logo message will flash for a few seconds and then a selection
screen will show.
1. Plug the eight prong Phoenix Connector into GT-01. For operator series before
ʻG,ʼuse the black cable, plug the opposite ROUND end into the PLC unit on the
operator. For ʻGʼseries and above, use the gray cable and plug the opposite
ROUND end into the receptacle on the end cover of the operator (right side).
3. For GT-01 software prior to Ver. 3, the screen in Fig. 3 will display. Choose either
ʻStandardʼor ʻMain/Subʼoperator. For Ver. 3 of the GT-01 software, the screen in
Fig. 4 will display. For Main/Sub, select ʻLead Door ʻor
ʻFollow Doorʼon the next screen (Fig. 5), then skip to step 5.
Fig. 2
Fig. 3 Fig. 4
Fig. 5
4. Selecting Standard will give you the screen shown in Fig. 6. Choose the appropriate
serial number series of the operator, to get to the first preset screen (Fig. 7)
Fig. 6 Fig. 7

5. Youʼll be given a display of the first three user presets (Fig. 7). To edit a preset,
simply touch the preset number.
6. A keypad will then display for entering the new preset (Fig. 8). Enter the desired
value and touch the ENTER (bent arrow) key to set the value. Press ESC to
cancel and go back to the preset list.
7. Press ʻNextʼ(Fig. 7) to display the remaining user presets or ʻBackʼto return
to the previous screen.
Note: Real Time Door Position (RTDP) is always displayed on both preset screens
Fig. 8
I/O Diagnostics for Series ʻiʼOperators and Above only
Selecting the ʻI/O Diagʼbutton from main screen (Fig. 4), will bring you to the
screen in Fig. 9. ʻOutputsʼwith display the screen in Fig. 11.
Fig. 9
Select ʻInputsʼto display the Input
Diagnostic Screen (Fig. 10).
Fig. 10
The buttons down the left
side, represent an actual
input to the PLC. All
standard Operator functions
can be tested using these
buttons.
The lamps down the
right side of the
screen indicate
when an actual
ʻhardʼinput is being
read by the PLC.
E.g., if a Wall Switch or
other device is sending an
input, the applicable lamp
will be lit.
The lamps down the right side
of the screen indicate when
the PLC is sending the
corresponding Output to the
motor control.
The serial number series referred to in these instructions is the starting letter of the Operators Serial Number.
NOTE: When using the newer GT-01 Software with an older PLC, or vice-versa, the initial startup of the GT-01 may be longer than usual and/or may
display an error on the screen, it will then clear and go to the initial screen shown in either Fig. 3 or Fig. 4

Door Position Setup Instructions
1. The factory settings represented in above diagram are a starting point and may
need to be adjusted for each application depending on installation and environment
variables.
2. Initiate a signal to have the operator close the door (Close button). Insure that the
Creep speed pot is set so that the door doesn’t “slam” into the frame. Operator will
move closed at high speed then go into Creep and stop. Adjust the Full Close value
lower or higher so that the door stops in the desired position.
3. Check position of door when fully open. Adjust Back Check and Full Open if
necessary.
4. Adjust the Partial Inhibit value to the desired position to allow required access
through doorway.