INSTALLATION AND
MAINTENANCE MANUAL
IMPORTANT INSTALLATION INSTRUCTIONS
WARNING – To reduce risk of severe injury or death:
1. READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
WARNING – To reduce risk of injury or death:
READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS
SAVE THESE INSTRUCTIONS
MODEL:
2950
2950B
Models 2950, 2950B as manufactured by:
Automatic Devices Company, Allentown, PA 18103
Table of Contents
Section
Description
Page
1A
Warranty
1
1B
Loss or damage
2
1C
Description
3
2
Machine Installation and start-up
3
3
Cable Attachment
6
4A
Lubrication
7
4B
Adjustments
7
4C
Cleaning
8
5
Troubleshooting and repair
8
5
Procedure for manual operation (loss of power)
13
Curtain Machine Instruction Manual
ADC Track Mounted Curtain Machines
IMPORTANT SAFETY INSTRUCTIONS
WARNING – To reduce risk of injury or death:
READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Note: Standard machines are designated as Models 2918 and 2917.
Machines equipped with friction brakes are designated as Models
2928B and 2917B. The control boxes of the 2928 & 2928B and 2917 &
2917B are NOT interchangeable. The control boxes and baseplates of
the machines are stamped with matching serial numbers. BE
CERTAIN TO MATCH THE CORRECT CONTROL BOX WITH THE
CORRECT MACHINE BY VERIFYING THAT THE SERIAL NUMBERS
MATCH.
1. General Information
1. INTRODUCTION
1A. WARRANTY:
(a) Our equipment is guaranteed against defective material and workmanship for a
period of one year from date of shipment, provided however that any claim for
defective material or workmanship must be made in writing received by us within the
appropriate warranty period, and the material or equipment claimed to be defective
returned to us whose liability under this guarantee shall be restricted to the
replacement or repair of defective materials and workmanship. In no event will we
honor any claim for special or consequential damages, nor will we accept backcharges for work performed on our equipment.
(b) If any modifications or alterations are made to our equipment without our prior
approval in writing, our warranty automatically becomes invalid.
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 1
(c) Our guarantee against defective material and workmanship applies only to the
normal and conventional use and application of our equipment, as operated or
capable of operation on our plant testing facilities. The guarantee does not apply to
unusual, unique, untested or unconventional use and application.
(d) Commodities not manufactured by us are warranted and guaranteed only to the
extent and in the manner warranted and guaranteed to us by the manufacturer, and
then only to the extent we are able to enforce such warranty or guarantee.
(e) We will not guarantee the satisfactory operation of our curtain machinery when
used with curtain track not of our manufacture.
(f) We will not be held responsible for the failure of our equipment to operate
properly at the point of installation unless all information, instructions and drawings
requisite to the installation of our equipment and to existing job site conditions are
furnished to us in writing prior to our formally acknowledging the order. The above
warranty provisions will not apply if it is concluded by us that our equipment was not
properly installed and that without our prior approval alterations and/or modifications
were made to approved shop drawings supplied by us and/or to the job site,
subsequent to the submissions of the aforementioned information, instructions and
drawings.
(g) The giving of or failure to give any advice or recommendations by us shall not
constitute any warranty by or impose any liability upon us.
(h) No liability whatsoever shall attach to us until said products have been paid for.
(i) In the interest of improving the operation, appearance and production of our
equipment, we reserve the right to make design changes at any time without giving
prior notice to the trade.
1B. LOSS OR DAMAGE:
Even though most shipments are delivered in perfect condition, there is always the
possibility of loss or damage. In order to eliminate the possibility of inconvenience
and possible additional expense, we urge that you carefully follow these
suggestions: When a shipment is delivered to the carrier their agent receipts for it in
good condition. It is securely packed; otherwise, they would not accept it and
according to the terms on the Bill of Lading, a legally binding contract, the carrier
agrees to deliver it to you in the same perfect condition. If these goods are
damaged, they should not be accepted until the carrier's agent has noted on the
Freight Bill which he will give you, the nature and extent of the damage. He is
required to do this. In the same manner, if any goods are lost in transit, have
shortage noted on the Freight Bill by agent. The agent's opinion that carrier is not
responsible does not bar your claim. He is required to refer your claim to his Claim
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 2
Dept.
Concealed Damage: If there should be damage or loss of such a nature that it could
not be detected until the goods were unpacked, have the transportation company's
agent call AT ONCE and make inspection. Require him to give you a written
"Concealed" Bad Order Report, stating the condition of the goods when examined.
It is his duty to do this, and you should insist upon it. If he fails to inspect on
request, notify by mail within 15 days of delivery and keep a copy of your letter.
We are always willing to handle claims for loss or damage in shipment if the above
instructions are complied with. Write us immediately supplying us with an inspection
report.
1C. MACHINE DESCRIPTION:
This curtain machine utilizes a single phase AC motor, either split phase or capacitor
start, connected to a right angle gear reducer. On “B” models a friction brake is
added to the motor or between the motor and the gear reducer. The brake is
designed to provide more accurate stopping than a standard machine. A doublegrooved cable wheel, which is used to operate the curtain track cable, is mounted on
the output shaft of the gear reducer. The wheel is NOT driven by the gear reducer
output shaft. The wheel is driven via a cast metal driving dog located above the
wheel. The driving dog is keyed to the gear reducer’s shaft and provides power to
the drive wheel via a thumb screw threaded through the driving dog and into the
drive wheel. IN THE EVENT OF A POWER FAILURE, THE THUMB SCREW CAN
BE REMOVED THEREBY FREEING THE WHEEL FROM THE GEAR REDUCER
ALLOWING MANUAL OPERATION OF THE TRACK SYSTEM. NOTE THAT
POWER MUST BE SHUT OFF AND LOCKED OUT ACCORDING TO OHSA
REGULATIONS PRIOR TO ATTEMPTING TO REMOVE THE THUMB SCREW.
Track mounted limit switches are furnished with the machine which signal the end of
travel for both directions to the machine’s control circuit. A magnetic reversing
contactor, control relays, disconnect switch, overload protective breaker and control
switches are mounted in or on a sheet steel control enclosure which is remotely
located from the track mounted machine. One (1) three-button remote control
station is provided with the machine, additional stations are available upon request.
2. MACHINE INSTALLATION AND START-UP
2A. MOUNTING:
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 3
This curtain machine is designed to be attached to the end of the track using the
mounting device provided on the machine’s base. The machine MUST be
supported by an overhead structural member at the support points provided on the
machine, the curtain track DOES NOT support the weight of the machine.
2B. WIRING:
WARNING – MACHINE MUST BE PERMANTLY WIRED TO ITS
POWER SOURCE. POWER SOURCE, REMOTE CONTROLS, AND
LIMIT SWITCHES MUST BE WIRED IN ACCORDANCE WITH LOCAL
AND NATIONAL ELECTRICAL CODES.
ALL CLASS 2 (LOW VOLTAGE) CIRCUITS FROM AND TO MACHINE
MUST USE CABLE TYPE CL2, CL2P, CL2R, OR CL2X OR OTHER
CABLING WITH THE APPROPRIATE ELECTRICAL, MECHANICAL
OR FLAMMABLILITY RATINGS OR PER THE NEC.
Provide correct size service for current rating of machine, as indicated on
nameplate. A separate branch circuit for each machine is recommended.
Track mounted limit switches must be wired to the machine before the machine is
operated. See wiring diagram provided with machine for connection of track
mounted limit switches.
Control wiring should be sized according to the type of machine being used. These
machines are designed such that the control switches engage electrical relays and
thus the maximum in rush voltage is limited 85 VA or less for most machines. These
machines are supplied with a low-voltage control circuit (LVCS) which lowers the
control voltage of the machine to 24 Vac.
Note: Some machines have Class 2 control circuits and must be wired according to
NEC standards for Class 2 circuits.
All curtain machines must be grounded. A labeled ground terminal is provided for
this purpose within the control enclosure.
Make certain that proper voltage is connected to unit. Do not use an extension cord
to provide power to the unit since this will result in a voltage drop to the machine
which may cause erratic operation. Check the identification plate of the machine for
voltage requirements.
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 4
2C. START-UP:
Before applying power, make certain that all parts are free moving and that, if the
output wheel rotates, it will not accidentally engage some nearby object or person.
It is suggested that, if possible, initial start-up be made without cables attached to
the machine so that problems will not be created if erratic operation is encountered.
If the operating cables from the track are connected to machine, be sure that the
master carriers in the track are not attached to the operating cables, or are in a
location in the track that will enable them to move without binding or causing
damage.
With power applied, and unit either clear of obstructions or connected to cables in a
manner which will allow free movement, press either the "OPEN" or "CLOSE" pushbutton. The motor should start and the wheel of the machine should rotate.
Pressing the "STOP" push-button (red) of the should stop all movement. Unit
should operate in opposite direction of initial movement when remaining push-button
is pressed after machine has stopped. Electrical interlocks prevent reversal while
machine it is operating.
If the machine appears to be operating normally, and complete installation is to be
made at this time, limit switches can be adjusted at this time. Note that during
testing of the limit switches, the machine can be stopped at any time by pressing the
STOP button of the remote or local control station.
1.
The machine is supplied with 2 limit switches, one (1) for the OPEN
direction and one (1) for the closed direction. Limit switch control
direction is determined by the terminals that the switch is wired to in
the control box.
2.
One of the Master Carriers supplied is equipped with a tripping arm
which is used to activate the roller arm of the limit switches.
3.
The limit switches attach to the track via the track clamps provided
with the switch.
4.
To adjust the limit switches, locate the switches on the track such that
the master carrier tripping arm will engage the roller of the CLOSED
limit switch when the curtain is at its closed location. Locate the
OPEN limit switch such that its tripping arm will engage the OPEN
limit switch roller when the curtain is in its open location. Note that the
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 5
curtain will coast after the machine shuts off. The amount of coast
depends on the model track used with the machine and the weight of
the curtain. Allowance must be made for this coast when positioning
the limit switches.
5.
With the track mounted limits in position and tested, the machine can
be run to its full OPEN and CLOSED positions.
If the unit operates satisfactorily in both directions, it is ready to be connected to
cords from track.
3. CABLE ATTACHMENT
3. GROOVED WHEEL DRIVE:
1.
2.
3.
4.
5.
6.
7.
Install and wire the limit switches at the fully closed position of the track
system and the fully open position of the track system. Note that the
limits should be positioned such that the curtain is not fully compacted
when the master carrier reaches the limit switch as the carrier will coast
after the switch is activated. Check the position of the switch by manually
operating the master carrier until it activates the switch. Note the location
of the single carriers, they should not be compressed.
Place coil of cable on floor below the machine end of the track system.
Thread one end of cable through the machine side master carrier cable
clamp nearest the center overlap of the track system, but do not tighten
the cable clamps at this time.
Thread cable through the cable guides on the dead-end half of the
systems and then around the dead-end pulley
With cable now going around the dead end pulley, thread it through the
remaining side of the cable guides on the dead-end pulley side of the
track system and through the cable clamps of the master carrier located
on the dead-end half of the track system, but do not tighten the cable
clamps at this time.
Continue with the cable to the machine and wrap the cable around the
bottom groove of the double-groove drive wheel, then around the tensionidler pulley of the machine, and finally around the top groove of the drive
wheel and out toward the track again.
Thread the cable through the cable guides of the machine half of the track
system. Note that you may need to provide slack to the cable in order to
feed it around the drive system of the machine.
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 6
8.
9.
10.
11.
12.
Thread the cable through the closest (remaining) cable clamp of the
machine side master carrier. Allow approximately 10” of excess cable
and tighten this cable clamp.
Remove as much slack from the track system as possible by pulling on
the remaining unsecured end of cable at the machine side master carrier.
Make sure to check the cable at the machine and assure that it is fully
seated in the drive wheel grooves and that no excess slack is present at
the wheel or idler pulley.
With all slack removed from the system, tighten the remaining cable
clamp of the master carrier located in the machine half of the track
system. Allow approximately 10” of excess cable and cut off remaining
cable.
Operate the machine to the full CLOSED position. Only the master
carrier that has been tightened should move. When the machine shuts
off, slide the un-tightened master carrier into position at the center overlap
and tighten the cable clamps of the carrier.
Operate the system several times and make sure it is operating correctly.
If it is, the excess cable can be cut from the master carriers. Note, do not
cut the cable right at the cable clamp. Leave at least 2 to 3 inches of
excess so that cable slack can be removed in the future.
4. MAINTENANCE
4A. LUBRICATION:
Lubricate motor as per instructions on motor nameplate.
Gear reducer is factory filled with 600W super cylinder oil. During average service,
the reducer can be considered to be permanently lubricated. If, for some reason,
additional lubricant is required, it can be added through an opening at the top of the
reducer. Also be sure to remove power prior to performing maintenance on the
machine.
4B. ADJUSTMENTS:
All wire-centered cable stretches and slack must be removed from the system
periodically. To remove slack, clamp gripping type pliers to one of the cut ends of
cable located at the track master carrier. With the cable end secured, loosen the
cable clamp of the master carrier and pull out the excess slack from the system.
With slack removed, re-tighten the master carrier cable clamp.
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 7
Note: The machine operator for this type of system is designed to produce a
significant amount of friction on the operating line. Be sure to check the cable slack
both before and after the machine. It may be necessary to work the cable slack out
by feeding it around the machine’s drive wheel.
This machine is equipped with an adjustable tension pulley to add additional tension
to the operating line if needed. Note this device applies tension to a taught
operating cable only. All slack must be removed from the system at the master
carriers before this device is adjusted. The device is adjusted be threading the nut
of the device’s assembly to move the pulley wheel away from the main drive wheel,
thus applying additional tension to the system.
4C. CLEANING:
With power off, remove debris and foreign objects from vicinity of curtain machine,
from between motor and base, motor and frame, and from vicinity of drum. Lowpressure air or a vacuum cleaner can be used for this purpose.
With power off, remove cover from control enclosure. Remove dust and dirt with
low- pressure air or vacuum cleaner, being careful not to damage any internal parts.
Check and tighten all connections and mounting screws. Replace cover.
5. TROUBLESHOOTING AND REPAIR
It is assumed that the troubleshooting and repair will be performed by individuals
with a basic knowledge of electricity, motor controls, with the ability to follow the
wiring diagrams enclosed, and who will take the precautions required when working
with exposed electrical connections.
In order to perform the procedures listed, basic hand tools plus measuring and
indicating equipment are required. A clamp-on type volt-amp-ohmmeter tester with
accessories will provide the necessary indication and measurements. Before
proceeding with any of the checks listed below, make certain that all connections are
tight and any obviously defective or broken parts are replaced. Also make certain
that track is operating freely and that cables are in good condition.
When ordering replacement parts for this curtain machine, please give a description
of the part and also provide the model number and serial number of the machine.
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 8
5A. SYMPTOM: MACHINE WILL NOT START
Possible Cause:
Incoming Power Off
Disconnect Switch Off
Circuit Breaker Tripped
Suggested remedy:
Check with meter, or test light.
Check and reset switch.
Check track system for problems or bound
components. If none found, reset breaker.
Control Fuse Loose or Blown
Tighten cap, or replace fuse.
Broken Fuse Holder
Replace
Jumper “X” (see wiring diagram) removed Check and install jumper or remote control
from terminals 3 & 4 and no remote control station.
station is installed.
Faulty remote switch wiring
Check remote wiring with electrical meter.
Faulty ESR board
Check board for electrically open or
damaged components.
Check relay
contacts (should be NC).
Both limit switches activated
Check track mounted limit actuator arm
positions. If actuators in correct position,
check internal connections of limit switches.
(Power Removed)
Defective “STOP” button
Check with meter (power removed). Should
be NC.
5B. SYMPTOM: MACHINE RUNS IN ONE DIRECTION ONLY
Possible Cause:
Defective pushbutton (one direction)
Defective interlock at contactor
Limit switch activated
Defective contactor coil
Faulty ESR board
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Suggested remedy:
Check with electrical meter.
Check contactor and electrical interlocks
with electrical meter. Replace contactor if
jammed.
Check track mounted limit switches.
Reset actuator arm of limit. If actuator in
correct position, check internal wiring of
limit switch (power removed).
Check continuity of contactor coils. If
defective, replace contactor.
Check board for electrically open or
damaged components.
Check relay
Page - 9
Foreign material in contactor
contacts (should be NC).
Replace contactor (Power Removed)
5C. SYMPTOM: MOTOR RUNS BUT OUTPUT SHAFT DOES NOT TURN
Possible Cause
Drive wheel set screw loose
Faulty gear reducer
Faulty motor
Suggested Remedy
Check and tighten (power removed)
Check and replace (power removed)
Check and replace (power removed)
5D. SYMPTOM: NOISY MACHINE
Possible Cause
Dry motor bearing
Suggested Remedy
Inspect bearing ends of motor and lubricate
if port available. If no port available, motor
will need to be replaced.
Dry gear reducer
Inspect oil level of gear reducer. Examine
oil for contamination or metal shavings.
Replace gear oil if contaminated or fill if level
low. Use only recommended gear oil.
Faulty idler pulley assembly
Check and replace (power removed)
Loose machine mounting bolts
Check all mounting hardware. Tighten or
replace as needed.
Machine mounted against hollow ceiling, Change location of machine or fill area
wall, or object.
machine is attached to or near to deaden
area.
5E. SYMPTOM: MACHINE STARTS BUT WILL NOT PULL LOAD
Possible Cause
Suggested Remedy
Wrong incoming voltage or voltage drop on Check with electrical meter. Wiring may be
start up.
wrong gauge, run may be too long, or
dedicated power source may be needed.
Extension cord providing power to the Replace with permanent wiring according
machine.
National Electrical Code standards.
Dry gear reducer
Check oil level of reducer. Check oil for
contamination. Replace oil or fill reducer to
factory level. (power removed)
Defective motor capacitor
Check capacitor for physical damage.
Check amperage load on start-up and run
cycles. Amperage should drop after motor
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 10
Track system assembled incorrectly
Defective parts in track
gets up to speed. Replace capacitor.
(power removed). Not capacitor may have
residual charge. Discharge prior to removal.
Check track system and track installation
instructions. Correct as needed.
Replace any defective or worn track
components. (power removed)
5F. SYMPTOM: CIRCUIT BREAKER TRIPS
Possible Cause
Wrong incoming voltage or voltage drop.
Defective motor
Machine undersized for application
Incorrect or faulty wiring
Suggested Remedy
Check with electrical meter and correct.
Check motor capacitor for physical damage.
Check starting and running amperage.
Amperage should drop after motor gets up
to full speed.
Check load of system and contact factory for
machine rating.
Check wiring at terminal strip. If machine
wiring is faulty, return machine to factory for
repair.
5G. SYMPTOM: FUSE BLOWS
Possible Cause
Faulty remote control switch wiring
Loose connection in control box
Wrong fuse being used
Defective mechanical interlock
Foreign material in contactor
Suggested Remedy
Check wiring with electrical meter. Correct
as needed. Note machine supplies its own
control power, no external control power
signal should be present.
Check wire connections in control box
(power removed) and tighten as needed.
Check and replace correct size and type
fuse.
Check and replace contactor if jammed.
(power off)
Check and clear debris. Replace contactor
if needed.
5H. SYMPTOM: MACHINE WILL NOT STOP AT LIMIT SETTING
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 11
Possible Cause
Faulty remote switch wiring
Suggested Remedy
Permanent connection exists between
terminals 1 & 3 or 4, or 2 & 3 or 4. Correct.
Faulty limit switch
Check track mounted limit switches. Reset
actuator arm of limit. If actuator in correct
position, check internal wiring of limit switch
(power removed).
Faulty or misaligned master carrier tripping Check and align with limit switch actuator
arm
arms.
Limit switch wires not correctly connected
Check limit wiring (power removed). Limit
wires should be connected to the NC side of
the switch.
“OPEN” and “CLOSE” inputs activated Check automation outputs or remote
simultaneously.
stations and correct.
5I. SYMPTOM: MOTOR OVERHEATS
Possible Cause
Suggested Remedy
Wrong incoming voltage or voltage drop on Check with electrical meter. Wiring may be
start up.
wrong gauge, run may be too long, or
dedicated power source may be needed.
Extension cord providing power to the Replace with permanent wiring according
machine.
National Electrical Code standards.
Dry gear reducer
Check oil level of reducer. Check oil for
contamination. Replace oil or fill reducer to
factory level. (power removed)
Dry motor bearings
Inspect and lubricate if ports available
(power removed). Replace if ports not
available.
Defective motor
Check capacitor for physical damage.
Check amperage load on start-up and run
cycles. Amperage should drop after motor
gets up to speed. Replace capacitor.
(power removed). Not capacitor may have
residual charge. Discharge prior to removal.
Loose connection in control box
Check wiring at terminal strips and in
machine control box (power removed).
Tighten as needed.
Incorrectly assembled curtain track
Check track system and track installation
instructions. Correct as needed.
Defective parts in track
Replace any defective or worn track
components. (power removed)
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 12
5J. SYMPTOM: MOTOR STOPS PREMATURELY
Possible Cause
Suggested Remedy
Wrong incoming voltage or voltage drop on Check with electrical meter. Wiring may be
start up.
wrong gauge, run may be too long, or
dedicated power source may be needed.
Extension cord providing power to the Replace with permanent wiring according
machine.
National Electrical Code standards.
Defective STOP button or problem with Check with electrical meter for continuously
STOP loop wiring
closed circuit (power removed).
Faulty limit switch.
Check track mounted limit switches. Reset
actuator arm of limit. If actuator in correct
position, check internal wiring of limit switch
(power removed).
Incorrectly assembled curtain track
Check track system and track installation
instructions. Correct as needed.
Defective parts in track
Replace any defective or worn track
components. (power removed)
5.K PROCEEDURE FOR MANUAL OPERATION IN THE EVENT OF A
LOSS OF ELECTRICAL POWER:
1. Shut off electrical power source at nearest disconnect and lock-out the
disconnect according to OSHA lock-out regulations.
2. Unscrew thumb screw of driving dog located on top of the machines drive wheel
(track level) until it is completely free of the machine’s drive wheel.
3. Operate the track system manually to the desired location.
4. When power is restored, leave disconnect locked out and manually operate the
track system until the thumb screw hole in the drive wheel lines up with the
thumb screw hole in the driving dog.
5. Screw the thumb screw into the drive wheel until it is properly seated.
6. Restore power to the system and operate. Limits do not need to be adjusted
since they are a direct strike type.
Machine Manual - Large Machines
Automatic Devices Company
2121 South 12th Street
Allentown, PA 18103
Phone: 610-797-6000
Page - 13
Installation Photos
Photo 1
Machine Strung
Photo 2
Master Activating Limit
Photo 3
Cable at Machine Side Master Carrier
Photo 4
Top View of Strung Machine
Note
orientation of
limit switch
actuators
To center
overlap of
track system
Photo 5
Limit switch location
(Shown on 2800 track)
Master
Carrier
Actuator
Arm
To machine
end of track