installation and instruction manual

INSTALLATION AND INSTRUCTION MANUAL
MGT
IMPORTANT: READ THIS MANUAL CAREFULLY BEFORE INSTALLING THE OPERATOR
Note:Place installation manual in an accessible place near the operator. For future reference record:
Model #
Serial #
Date #
Wiring Diagram #
WARNING
DO NOT CONNECT TO POWER SUPPLY WHILE INSTALLING, SERVICING OR ADJUSTING
THE ELECTRIC OPERATOR
2
IMPORTANT SAFETY INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF SEVERE INJURY OR DEATH, READ AND FOLLOW ALL INSTRUCTIONS.
1. Never allow children to operate or play with or near door.
2. Check to see that the operator is proper for the type, size of door and frequency of use per the operator
specifications.
3. If the door system is near a residential area, or pedestrian traffic is expected near the door system, additional
equipment such as electric reversing edges, photocells, or similar devices must be installed as part of the
system to prevent entrapment.
4. Reversing devices appropriate to the application must be installed as part of the system.
5. Outdoor or easily accessible controls must be of the security type to prevent unauthorized use of the system.
6. Place controls far enough from the door so that a user cannot touch the door when operating the controls.
7. Controls should be placed so the user has full view of the door when operating.
8. Always keep moving door in sight and away from people or vehicles until it is completely open or closed. NO
ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
9. If a person is trapped under the door, push the “OPEN” control button or use the emergency floor level
disconnect mechanism.
10. Do not overtighten a clutch to compensate for a damaged door.
11. Test door and service monthly. If adjusting limit travel, retest the door opener. Failure to adjust the door may
cause death or injury.
12. KEEP DOORS PROPERLY BALANCED. See owner's manual. An improperly balanced door could cause
severe injury. Have a qualified service person make repairs to cables, spring assemblies and other hardware.
13. Use emergency manual operation mechanism only when operator has been electrically disconnected.
14. If possible, use the emergency release only when the door is closed. Use caution when using this release
with the door open. Weak or broken springs may cause the door to fall rapidly, causing injury or death.
15. You are responsible for assuring that the owner of the door system understands its basic operation and
safety. In particular, be sure the owner/end-user understands the location and operation of the manual
disconnect.
16. Point out to the owner/end-user of the door system that children or pets should not be allowed to play on or
near the door or any part of the system, and that the safety instructions supplied with this operator are the
responsibility of the owner/end-user.
17. Leave the installation and maintenance manual for this operator as well as any additional information
supplied with this operator or other components of the door system with the owner/end-user
18. If you have any questions about the safety of the door operating system, do not install this operator.
WARNING
IMPORTANT: PLEASE READ CAREFULLY THE ANNEX INSTALLATION MANUAL WHEN OPERATOR IS
SUPPLIED WITH AN ELECTRONIC CONTROL BOARD.
3
TABLE OF CONTENTS
Page
SPECIFICATIONS………………………………………………………………………………………………4
PRODUCT APPLICATION……………………………………………………………………………………..5
DELIVERY OF OPERATOR ...................................................................................................................5
HARDWARE ...........................................................................................................................................5
INSTALLATION.......................................................................................................................................6
OPERATOR START-UP AND TESTING GUIDE .................................................................................18
TROUBLE-SHOOTING GUIDE ............................................................................................................19
SCHEDULED MAINTENANCE.............................................................................................................21
MGT EXPLODED VIEW………………………………………………………………………………………22
MGT SINGLE PHASE ELECTRICAL DIAGRAM…………………………………………………………..23
MGT 3 PHASE ELECTRICAL DIAGRAM…………….…………………………………………………… 24
NOTES……………………………………………………………………………………………………….25-27
4
SPECIFICATIONS
GENERAL
SUPPLY VOLTAGE………………….. 115, 230 VAC single phase 208, 460, 575 VAC three phase
CONTROL VOLTAGE………………. 24VAC class 2 transformer, 2 amp fuse type ACG
MOTOR………………………………
Continuous duty motor 1/2HP, 3/4HP, 1HP & 1.5HP
OPERATOR OUTPUT SPEED……… 103.5 RPM
WEIGHT (net)………………………… 126 lbs (approx), 56.8 kg
STANDARD WIRING TYPE…………… C2 momentary contact to open and stop and constant pressure to close.
DIMENSIONS
5
THE TROLLEY OPERATOR (MGT)
IMPORTANT: UPON CMPLETION OF OPERATOR INSTALLATION, THIS MANUAL MUST BE GIVEN
TO THE END-USER
PRODUCT APPLICATION
The model MGT heavy duty trolley operator is designed for use on standard lift overhead sectional garage
doors. All MGT door operators are designed and constructed in accordance with UL and CSA standards.
DELIVERY OF OPERATOR
Upon delivery of your heavy duty trolley operator, inspect the unit immediately for transport damage. Verify that
you have received all the hardware requested with your order (Table 1). Other items may be present, such as
radio controls or other types of optional equipment, if ordered. If any item is missing or if there is evidence of
damage, call the transport company first.
* Check to make sure that the available power supply to be connected to the operator is of the same voltage,
frequency, phase and amperage as indicated on the nameplate
of the operator.
HARDWARE
TABLE1
QTY
PART #
1
1
1
1
1
2
1
1
6
1
1
1
11
2
2
9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
STANDARD PARTS LIST FOR MGT TROLLEY OPERATOR
DESCRIPTION
3-button open/close/stop push-button station
Door lifting arm assembly
Set of trolley tracks (door height + 2’6”(0.75m))
Front end bracket
Front idler
Trolley tracks spacer c/w 3/8” x 3/4” bolts & 3/8” lock washers
Carriage
#41 chain package (2 x door height + 5’6”(1.65m)) w/connecting link
Hex head bolt 3/8-16unc x 1 ¼”
Hex head bolt 3/8”-16 x 2 ¼”
Take-up bolt 3/8” x 2 ½”
Eye bolt 1 3/8” x 3”
Hex nut 3/8-16unc
Nylon lock nut 10-32unc
Hex head cap screw 10-32unf x 1”
Lock washer 3/8”
Figure 1
Hardware
6
INSTALLATION
All heavy-duty trolley operators are tested and adjusted at the factory. They are factory set in the fully closed
position before being placed in a box for shipping. When installing your unit, please note that the cams are resting
on the close limit switches located on the Close side of the cam-shaft.
IMPORTANT INSTALLATION INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF SEVERE INJURY OR DEATH, READ AND FOLLOW ALL INSTALLATION
INSTRUCTIONS.
1. Installation of this door operator must be done by a qualified installer.
2. Insure that the door is properly installed and works freely in both directions. Do not install the operator until all
door problems have been corrected. If necessary, oil all moving parts (chains, rollers, guides, etc.).
3. Remove all old accessories (locks, bolts, etc.) before installing door operator.
4. Do not connect the operator to a source of power until instructed to do so.
5. Locate control push-button station within sight of the door, at a minimum height of 5 ft. (1.53 m) so small
children cannot reach it, and away from all moving parts of the door.
6. Ensure that emergency release tag is attached to emergency quick release disconnect arm (Figure 2).
Figure 2
Emergency release tag
WARNING
STAND CLEAR OF DOOR AND VERIFY THAT DOORWAY IS CLEAR, THEN PULL EMERGENCY
RELEASE DISCONNECT LEVER TO DISCONNECT OPERATOR FOR MANUAL OPERATION OF DOOR.
7
INSTALLATION OF MGT OPERATOR
IMPORTANT NOTE: THIS OPERATOR MUST BE INSTALLED A MINIMUM OF 8 FT (2.4 m) ABOVE FLOOR.
Before the operator is installed, ensure that door has been properly aligned and is working smoothly.
It is advisable to assemble the operator to the trolley tracks on the floor prior to installation.
1. Bolt the tracks to the operator using bolts provided (Figure 3).
Figure 3
Assembling operator and tracks
2. Place carriage on rails and slide to forward position, making sure that the chain eye bolt is facing the
operator (Figure 4).
Figure 4
Inserting carriage in tracks
3. Attach front idler and rail spreaders as shown in Figure 5.
Figure 5
Front idler and spreaders
4. Attach chain to the take-up bolt with the provided chain links to the rear of the carriage (Figure 6). Run
chain around front idler and continue around drive sprocket on operator. Loop chain through eyebolt.
Pass the chain through the eye-bolt and pull until taught. Now pass the 2 hardened Allen screws through
the chain pitches and fasten with 2 nylon locking nuts. Chain can then be tightened by adjusting the takeup bolts in carriage. Properly adjusted chain should sag approximately 3” (7.6 cm) at halfway point on
tracks.
8
Figure 6
Note:
Installing chain
All trolley operators are designed to mount directly over the center of the door, and the operator tracks
should clear the door by approximately 2.5" (6.4 cm). If it is not possible to mount the operator exactly
centered, it is possible to install it slightly off center for torsion spring doors.
5. Establish center line of door by measuring door width and marking a vertical line on the wall directly above
the door.
6. Open the door manually to determine the high arc (highest point) of door travel (see Figure 7). Using a
carpenter's level draw a line so that it will intersect with the vertical line determined earlier.
HIGH ARC POINT
Figure 7
Highest arc of travel
7. The wall mounting bracket has three bolt holes for mounting the front end of the trolley tracks. The bracket
should be attached to the wall with these holes 2.5" (6.4cm) above the high arc of door (Figure 8). Wood
blocking or angle iron framework may be installed on the wall to provide for the attachment of the front
bracket.
Figure 8
Wall mount bracket
9
8. After securing the wall mounting bracket, allow the motor to rest on floor and raise the front end of the rails
and secure (but not tighten) with 5/16” bolts and nuts (Figure 9). If torsion hardware is preventing the rails
from lining-up with the wall bracket, secure temporarily with cord.
Figure 9
Installing tracks on wall bracket
9. Hoist rear of operator using block & fall or other suitable means above level of horizontal door tracks and
temporarily secure in place using rope or chain. Tighten front end bracket bolts.
10. Carefully open door by hand and move rear of operator so that it is directly over center of door, with
approximately 3" clearance between door and bottom of operator rails (Figure 10).
Figure 10 Adjusting height of operator
11. Hanging brackets may now be affixed from ceiling to operator (Figure 11). Two or more holes are provided in
frame of operator for this purpose. Take care that unit remains centered over door during installation of
hangar brackets. After vertical drops are made and secured, side braces should be installed.
12. Approximately 5 feet (1.5 m) from forward end of rails, locate set of 3/8" holes for angle iron braces to secure
rails. Two drops pieces should be installed at this point to further strengthen installation (Figure 11).
Figure 11 Location and installation of hangers and side braces
10
13 Close door. Connect door arm to carriage using 3/8" x 2-1/4" bolt furnished. Fasten door bracket to arm
and position on door as shown in Figure 12. Mount door bracket to center of door in such a way that the
door bracket is also in line with the top rollers on the door.
Figure 12 Installing door arm to door
13. Door arm should always lean vertical (Figure 13).
Figure 13 Position of door arm
11
MINIMUM SUGGESTED WIRE SIZE FOR CONTROL CIRCUIT
The control circuit operates at 24 VAC. Due to the resistance in the wire used to carry the control circuit voltage, it
is important to use the appropriate wire size with respect to the distance between the operator and the pushbutton station.
Below is a chart (TABLE 1) indicating the minimum recommended wire size with respect to the total distance
between the operator and the push-button station. DO NOT exceed the maximum distance. If there are
several push-button stations in series you must ADD all these distances before selecting the appropriate wire
gauge for your operator.
If the wire gauge is not suitable for the distance, problems in operation will be encountered such as chattering
relays and contactor, premature wear of the contacts and possible tripping of the motor's thermal protection.
If a greater distance is required, a long distance interface module is suggested (consult factory).
When large gauge wire is used, a separate junction box will be needed for operator power connection (not
supplied).
All power wiring to the operator should be installed by a qualified electrician and may vary with respect to conduit
size and type as specified in the National Electrical Code, Article 430, allowing 5% voltage drop. Power must also
be connected in accordance with local codes.
Minimum suggested
Wire gauge (AWG)
TABLE 1 WIRE SIZE vs. DISTANCE
24 VAC CONTROL WIRING
Maximum distance between operator and all
Push-button stations feet (meters)
22
20
18
16
14
12
50 (15)
100 (30)
150 (45)
250 (75)
350 (105)
450 (135)
WIRING OF THE MGT OPERATOR
Do NOT connect any accessory controls until the limit switch adjustments have been completed and the operator
is functioning properly.
Refer to the electrical diagrams on pages 23 and 24, the wiring specifications in TABLE 1 and the terminal input
connections of Figure 22.
NOTE: For wiring of operators with Electronic Control Board, please consult the specific manual.
WARNING
EXERCISE CAUTION WHEN OPERATING MACHINE. THE DRIVE CHAIN AND LIMIT CHAIN, WHEN
EXPOSED AND TURNING, COULD CAUSE SEVERE INJURY.
NOTE: Wiring diagrams are found on the inside of the control box cover. If the diagram is faded or damaged, call
the factory for a replacement. DO NOT INSTALL ANY WIRING OR ATTEMPT TO RUN THIS
OPERATOR WITHOUT CONSULTING THE WIRING DIAGRAM.
12
Main Power Supply
Power to the operator is of the permanent connection type. Connect according to local electrical code. Ground the
unit using the ground lug inside the control box.
For single phase operators, connect the power supply to terminals L (line) and N (neutral) on the main terminal strip.
For three phase operators, connect the power supply to terminals L1, L2 and L3 on the main terminal strip.
Three phase
power
supply
Single
phase power
supply
Ground
Ground
Figure 14 Power supply connection
WARNING
GROUND THE UNIT CORRECTLY USING THE COPPER GROUND LUG LOCATED INSIDE THE
OPERATOR CONTROL BOX.
Note:
All other connections on the terminal strip (1 to 9) are low voltage class II 24 VAC.
1. External interlock between terminals 1 and 2. A jumper is factory installed between these two terminals. If
an external interlock is used (such as interlocking between two doors), remove the jumper between 1 and 2
and wire the interlock between these two terminals.
Interlock Device With
Normally Close Contact
Jumper
Figure 15 External interlock
2. A 3 button push-button station (open/close/stop) can be wired to terminals 2, 3, 4 and 5. Two push-button
stations can be wired to these same terminals by following the wiring diagrams on pages 22 and 23.
Stop
Open
Close
Figure 16 Three button push-button station
3. Three terminals are provided for the wiring of a radio-control receiver. Terminal #9 is Ground, #7 is 24 VAC
(common) and #8 is the relay contact provided by the radio-control receiver to activate the door to open or
close. Furthermore, terminals 7, 8 and 9 are doubly available on the terminal strip inside and on a separate
small terminal strip located on the side of the unit. This terminal makes it convenient to wire-up a standard
single button radio receiver on the side of the unit. When the transmitter is activated, the door will open to the
fully open position. From the fully open position, the door will close. If transmitter is activated while closing,
the door will reverse to the fully open position.
13
NOTE:
It may be required to reverse connections to 7 and 9 for other types or radio receivers
(Allstar, Linear, Pulsar ...).
Receiver
24 V a. c.
Contact
Ground
Figure 17 Radio-control
4. A single button open/close door device can be wired to terminals 7 and 8 to behave in the same way as
the radio control receiver.
Figure 18 Single button device
NOTE:
If several control devices are to be used, connect one and check for proper operation before
connecting the next device.
5. A reversing edge can be wired up to terminals 3 and 6. These terminals can also be used for any other
reversing devices such as loop detectors and photocells.
Normally open
contact
Figure 19 Reversing edge or other device
IMPORTANT: Upon completion of all wiring connections, readjust limits as mentioned in section 20 using
"Open", "Close" and "Stop" buttons.
LIMIT SWITCHES
WARNING
TO AVOID THE DANGER OF POSSIBLE DAMAGE TO THE DOOR AND OPERATOR, LIMIT SWITCHES
MUST BE ADJUSTED TO THEIR APPROXIMATE POSITIONS BEFORE MANUALLY OPERATING THE
DOOR OR BEFORE APPLYING POWER TO THE OPERATOR.
There are 4 limit switches. Two are used as end of travel, one is for radio-control or one-button operation
and one is for reversing devices. These switches are activated by the rotary cams travelling on a threaded
shaft (Figure 20)
•
The Open limit switch is the end of travel in the open position. Adjust the cam so that the door stops in the open
position at the desired location.
•
The Advanced Open limit switch is used for radio-control and for a one-button (open/close) feature. This limit
switch is set to be activated slightly before the "Open" limit switch when opening.
•
The Close limit switch is the end of travel in the closed position. Adjust the cam so that the door stops in the
closed position at the desired location.
14
•
The Advanced Close limit switch is used in the operation of the reversing edge or other reversing devices. This
limit switch deactivates any reversing devices slightly before the door reaches its closed position to prevent the
door from reversing when fully closed.
Advanced Open
Limit switch
Close limit
switch
Figure 20 Limit switches
ADJUSTMENT OF LIMIT SWITCHES
1.
Open the cover of the electrical enclosure.
2.
Electrically raise the door to the desired Open position and stop with the “Stop” button.
WARNING
NEVER PLACE HANDS OR TOOLS INSIDE OPERATOR OR NEAR DRIVE MECHANISM UNLESS
POWER IS OFF.
3.
Depress the travelling cam retaining bracket and rotate the Open cam (Figure 21).
Note: Turning the cam towards the center of the shaft increases door travel.
Turning the cam towards the switch decreases door travel.
4.
Manually rotate the Open cam until it depresses the Open limit switch sufficiently so as to hear the
switch click.
5.
Release retaining bracket. Make sure that the bracket engages in the slots of both limit cams after each
adjustment.
6.
Electrically lower the door to a nearly closed position and repeat steps 3 through 5 with the Close cam.
Press down on cam
retaining plate to
rotate
Rotate cams to
desired positions
Figure 21 Adjusting the limit cams
15
OPTIONAL CONTROL ACCESSORIES
• Radio Controls: Consists of a radio receiver unit and remote transmitters. These controls consist of an RF
signal being emitted on a "pulse" basis to a mated receiver tuned to the same "pulse" rate. Once the receiver
accepts the code, a relay is activated closing a set of contacts.
•
Photo-electric units: Can be used as opening and reversing devices. An infra red light is emitted from the
control to a reflector and back. If, during closing travel of the door, the light beam is broken, the door will
reverse to the fully open position.
•
Digital Keypad: Consists of a control head which is pedestal mounted. Similar to a telephone touch pad it
allows the selective coding of a four number series. Once the programmed series of numbers is received in
their set order, a relay closes and completes a circuit.
•
Card Reader: A magnetic-mechanical device which accepts sealed and coded cards. The cards trigger
magnets to raise in the cartridge head, releasing a lock mechanism which allows a deeper insertion of the
card. The card then contacts a switch that closes the circuit.
•
Key Switch: Momentary contact will open door. Can be wall or post mounted for interior or exterior use.
Figure 22 Terminal Input Connections
CONNECTION OF A REVERSING EDGE DEVICE
IMPORTANT NOTE: If the door is controlled by any device other than a constant pressure push-button station, a
reversing edge must be connected.
CAUTION: Connect reversing device appropriate to installation.
Connection and installation of a reversing edge device is provided with the edge (see also Figure 23). Any such
device that uses a normally open contact may be connected to terminals 3 and 6 on the low voltage terminal block
(Figure 19). When the door comes in contact with an object during downward travel, the circuit will cause the motor
to reverse the door to the fully open position. In addition, there is a cut-off limit switch (advanced close limit switch)
that will de-activate the reversing edge during the last few inches of the door's downward travel.
16
Reversing edge
location
Figure 23 Reversing Edge
CLUTCH ADJUSTMENT
1. Loosen clutch set screws (Figure 24 A).
2. Back off clutch nut until there is insufficient tension on clutch spring to permit clutch to drive door (Figure
24 B).
3. Tighten clutch nut gradually until there is just enough tension on spring to permit operator to move door
smoothly, but allow clutch to slip if door is obstructed.
4. When clutch is properly adjusted it should be possible to stop door by hand during travel.
5. Be sure to tighten clutch set screws each time operator is tested for clutch adjustment and that it is
locked in place on completion of adjustments.
WARNING
THE FRICTION CLUTCH IS DESIGNED TO PROTECT VEHICLES AND DOOR HARDWARE AGAINST
DAMAGE. IT IS NOT INTENDED TO PROTECT PEOPLE. ALL DOORS SERVING PERSONNEL ARE TO BE
FITTED WITH AN APPROPRIATE REVERSING DEVICE OR REVERSING EDGE TO PREVENT INJURY OR
DEATH.
If an automatic reversing device is desired, several types are available as accessories. Consult your dealer for a
recommendation.
Figure 24 A
Allen
Key
Figure 24 B
Set screw
&
Clutch nut
Key is
supplied
Reducer
Figure 24 Reducer adjustment
BRAKE ADJUSTMENT
•
The brake is factory set. However, after extensive use the brake may need to be adjusted.
•
In order to obtain best performance and maximum life, the brake must be adjusted for:
Proper clearance between the brake band and the brake drum when the solenoid is
energized.
Correct brake tensioning when the solenoid is de-energized.
17
TO ADJUST THE BRAKE SYSTEM:
1. Remove the solenoid cover.
2. Slightly unscrew the pivot nut (Figure 25)
3. To adjust the brake band tension, move the adjustment lever. To increase tension, move the lever away from the
motor. To decrease tension, move the lever toward the motor
4. Tighten the pivot nut
5. Check clearance but manually holding the solenoid plunger. The brake drum should rotate easily by hand.
6. After adjustment is done, re-install the solenoid cover.
Pivot nut
Lever adjustment
Figure 25 Brake system
MANUAL OPERATION OF MGT OPERATOR
The MGT operator is equipped with trolley release disconnect mechanism to operate the door manually, if
necessary. To manually operate the door:
1. Pull the disconnect chain downwards and disconnect trolley arm from carriage (Figure 26)
WARNING
DOOR ARM IS RELEASED FROM TROLLEY CARRIAGE WHEN DISCONNECT CHAIN IS PULLED. TO AVOID
BEING STRUCK BY DOOR ARM, DO NOT STAND DIRECTLY UNDER DOOR ARM WHEN PULLING CHAIN.
2. Operate the door manually (by hand).
3. To return to electrical operation merely re-attach trolley arm to carriage by pulling on trolley disconnect
chain while re-inserting arm onto carriage (Figure 26)
18
WARNING
DO NOT ATTEMPT TO DISENGAGE THE OPERATOR WHILE OPERATOR IS RUNNING. DO NOT ATTEMPT
TO MANUALLY FORCE A MALFUNCTIONING DOOR TO OPEN OR CLOSE.
2. Disconnect trolley
arm from carriage
1.Pull the disconnect
chain
Figure 26 Disconnecting arm from carriage
OPERATOR START-UP AND TESTING GUIDE
This guide is a procedure you can follow to test every feature of your door operator.
If a 3 button push-button station is wired to the operator, disconnect it and then place a normally-close
contact between terminals 2 and 3 to simulate a "Stop" push-button (use a spare limit switch or any such
device). Interrupting the power between these terminals will stop the operator.
Using a small wire jumper, momentarily jump (short-circuit) the following terminals:
A. Momentarily jump terminals 3 and 4.
The door will open instantly. Allow it open completely.
B. Momentarily jump terminals 3 and 5.
The door will close instantly. Allow it close completely.
C. Momentarily jump terminals 7 and 8.
The door will open instantly. Allow it to open completely.
D. Momentarily jump terminals 7 and 8.
The door will close instantly. While closing, go to step E.
E. Momentarily jump terminals 7 and 8 again.
The door will reverse to open. Allow it to open completely.
F. Momentarily jump terminals 7 and 8.
The door will close. While closing, go to step G.
G. Momentarily jump terminals 3 and 6.
The door will reverse to open. Allow it to open completely.
H. Momentarily jump terminals 7 and 8 again.
The door will close. Allow it to close completely.
I.
Momentarily jump terminals 3 and 6.
The door should remain still.
This procedure can be repeated using the radio-control terminal strip located on the outside of the control box by
using terminals "24VAC" and "CONTACT" instead of terminals 7 and 8.
19
The following trouble-shooting guide (TABLE 2) will help you identify the source of the problem given a particular
symptom.
TABLE 2 TROUBLE-SHOOTING GUIDE
SYMPTOM
PROBABLE CAUSE
SUGGESTED ACTION
Door will not
respond
to
"open" or "close"
push-buttons.
Motor has overworked and the
overload thermal protection has
tripped.
Circuit breaker tripped (if used).
Fuse is blown.
Door will
respond
"open"
command,
will respond
"close"
command.
not
to
but
to
Door will not
respond to
"close"
command, but
will respond to
"open"
command.
Door moves in
wrong direction
with
a
three
phase motor
Door closes by
itself
and
operator
does
not shut-off at the
end of closing
travel.
Door opens by
itself
and
operator
does
not shut-off at the
end of opening
travel.
Door
coasts
when stopped at
any position.
Sensing
edge
does not reverse
door.
Transformer defective.
Defective "stop" push-button.
Loose connection in one of the
push-buttons.
Defective "open" or "close" pushbutton.
Defective "open" push-button.
Defective "open" limit switch.
Loose wire on "open" push-button,
"open" limit switch or coil of open
contactor.
Reset the overload protection: press reset button located
on the side of the unit for a single phase operator or inside
the control box for a three phase operator. Is the door
unbalanced?
Reset circuit breaker.
Replace fuse. If control circuit fuse keeps blowing:
Disconnect all external devices. Leave power terminals
connected. (Remove power to power terminals). Run the
operator artificially by using jumpers and shorting out the
appropriate terminals as indicated in the Start-Up and
Testing Guide. Then reconnect the various external
devices one by one until you find the one causing the short
to ground.
OR: If you have an ohm-meter, use it to check all
incoming wires for continuity to ground. The meter should
read infinity in all instances. If there is conduction between
any control circuit wire and ground, this indicates a leak to
ground and this is why the control circuit fuse blows when
power is applied.
In some cases, the trouble is intermittent: i.e. the fuse only
blows at certain times. This problem is more difficult to
detect, but again: disconnect all wires going to external
devices, and run the operator: if the fuse does not blow,
this indicates that the trouble resides outside the operator.
Replace.
Replace.
Verify, tighten or replace.
Replace.
Replace.
Replace
Verify, tighten or replace.
Defective "close" push-button.
Loose wire on close push-button,
close limit switch or coil of close
contactor.
Replace.
Verify, tighten or replace.
Incorrect phasing.
Interchange any two power leads.
"close" contactor is defective.
Verify and replace.
"close" limit switch defective
Verify and replace.
"open" contactor is defective.
Verify and replace.
"open" limit switch is defective.
Verify and replace.
Brake pad is worn out or requires
adjustment.
Replace or adjust.
Pneumatic hose broken, electrical
wiring not connected.
Contact a qualified installer.
20
SYMPTOM
PROBABLE CAUSE
Reversing
devices will open
the door when
the
door
is
closed.
When
door
closes it reverses
to fully open after
it hits the floor.
The advanced close limit switch is
defective.
The advanced close limit switch is
not being engaged by travelling cam.
Radio-control
does not function
or hesitates for
10
seconds
before working.
It is normal for a radio receiver to
take up to 10 seconds to "warm-up"
before being fully operational.
Therefore, when applying power for
the first time, the radio-control will
take 10 seconds before becoming
fully operational.
Motor
hums,
starts
when
spun.
Motor fails to
shut off at fully
closed or opened
positions.
Capacitor defective.
Motor turns but
door does not
move.
Motor hums or
does not run.
Limit switches do
not hold their
setting.
Radio-control
opens
and
reverses
the
door, but when
the door is fully
opened,
will
close the door a
little and bounce
back to the open
position
again.
Door cannot be
closed except by
the "close" pushbutton.
The advanced close limit switch is
defective.
The advanced close limit switch is
not being engaged by travelling cam.
A "Close" command is being given.
Defective limit switch.
Limit cams are not adjusted.
Limit drive chain broken.
Loose sprocket on limit shaft.
Limit shaft does not rotate.
Sprocket key is missing.
Drive chain is broken.
Clutch is slipping.
Door locked or jammed.
Dead phase (three phase supply).
Brake does not release.
Loose drive or limit chain allows
chain to jump sprocket teeth.
Limit cam retainer not engaging slots
in limit cams.
Limit cams are binding on shaft
threads which allows them to jump
position on retainer.
The Advanced Open limit switch is
insufficiently advanced from the full
Open limit switch. The contact of the
radio-control receiver is maintained
for 1.5 seconds when a command is
issued by the radio transmitter.
Therefore, when the door is fully
opened, and a pulse is sent from the
transmitter, the receiver maintains
the contact closed for 1.5 seconds. If
the door has closed and the
Advanced Open limit switch has
returned to its normal state, the
reversing relay will be activated, and
the door bounces back to the open
position.
SUGGESTED ACTION
Replace.
The advanced close limit switch needs to be adjusted just
slightly ahead of the end of travel Close limit switch.
Replace.
The advanced close limit switch needs to be adjusted just
slightly ahead of the end of travel Close limit switch.
Check "Close" push-button or any closing device for shortcircuit.
Check protocol code pins of the transmitter and receiver:
they must be the same. Press on the transmitter and listen
to the receiver: you should hear a faint click. The
transmitter battery may be dead or your receiver may need
servicing. To test for radio-control function, short out
momentarily terminals 7 and 8 on the terminal strip.
Operator should function normally. Have the radio-control
verified: the mini-relay inside the receiver may be
defective.
Replace
Operate limit switch manually while door is moving. If door
does not stop, replace switch.
Verify and adjust.
Replace.
Tighten set screw.
Verify and replace accordingly.
Replace.
Replace.
Adjust clutch tension.
Verify manual operation of door.
Check power supply, fuses on each phase.
Check wires to brake solenoid. Verify and adjust brake
tension.
Adjust chain to proper tension
Be sure retainer is in slots of BOTH cams.
Lubricate shaft threads. Limit cams should turn freely.
Adjust the Advanced Open limit switch by bending the
switch arm away from the Open limit switch arm and more
towards the travelling cam.
21
SCHEDULED MAINTENANCE
Inspection and service should be performed anytime a malfunction is observed or suspected.
WARNING
WHEN SERVICING - ALWAYS DISCONNECT OPERATOR FROM POWER SUPPLY
MECHANICAL
The door area should always be kept clear of dirt, rocks or any other substance to insure proper
operation.
•
EVERY 3 MONTHS
- Check and adjust the clutch, if necessary.
EVERY 6 MONTHS
- Lubricate all moving parts, Bushing are oil impregnated and are lubricated for life.
- Verify that all mechanical parts function properly.
- Manually operate the door. If the door does not open or close freely, correct the cause of
the malfunction.
ONCE A YEAR
- Inspect all bolts and screws and tighten if necessary.
- Check for any excessive slack in chains and adjust or replace them if necessary. The limit
switches may have to be reset after a chain adjustment.
- Inspect the door for wear and damage.
- Run the operator a few cycles:
Make sure that the door rollers are rolling smoothly on the track.
Listen to the motor: The motor should hum quietly and smoothly.
Verify that the limit operates quietly and smoothly: investigate any unusual
noise.
- Verify that the mooring bolts are holding the unit securely.
- Inspect the unit for evidence of corrosion.
ELECTRICAL
WARNING
BEFORE OPENING THE CONTROL BOX COVER, DISCONNECT OPERATOR FROM POWER SUPPLY
•
Inspect the wiring compartment and remove any dirt from the control units.
•
Verify all the grounding wires and terminations for corrosion. Be particularly careful to check the ground wires.
•
Check the terminal strip to insure that all the screws are tight.
•
Verify that the security systems installed on the operator are fully operational.
•
Verify the voltage at the input terminals while the operator is running. The voltage must not drop more than
10% momentarily. If the voltage drop is too deep when running, the relays may chatter, the contact points will
wear prematurely and may eventually weld. Verify the power terminations for corrosion.
•
Verify the current consumption of the unit with an amp-meter. The value of current should be consistent with
the name-plate specifications. Investigate any anomaly.
22
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24
25
NOTES
26
NOTES
27
NOTES
28
Customer Service Technical Support
US Toll Free Number: 1-866-776-7372
CAN Toll Free Number: 1-800-361-2260
BOOK016 REV B 02/28/2002
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