LiftMaster MH Support Question
LiftMaster MH Support Question
Find answers below for this question about LiftMaster MH.Need a LiftMaster MH manual? We have 4 online manuals for this item!
Question posted by Jkegg1asc on March 26th, 2021
What Is An External Interlock And What Does It Do?
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Current Answers
Answer #1: Posted by Odin on May 10th, 2021 6:59 AM
Odin
Member since:
April 10th, 2010 Points: 41,236,670
Member since:
April 10th, 2010 Points: 41,236,670
The Switch Sectional Door InterlockNEMA 4 switch disables the operator control circuit when the door is locked, preventing electrical operation of the door.
See https://resources.sscorp.com/door/uploads/T-Users%20Guide.pdf.
See https://resources.sscorp.com/door/uploads/T-Users%20Guide.pdf.
Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.
Related LiftMaster MH Manual Pages
MGJ User's Guide Manual - Page 5
... the hoist:
1. Emergency
disconnect will operate again electrically. Door
Release Handle
MODEL MH
These operators are equipped with Hoist for your model operator. MODEL MT/BMT
Emergency Disconnect
CAUTION
To prevent possible SERIOUS INJURY or DEATH from the chain retaining bracket before the door will
Door
open door falling rapidly and/ or unexpectedly. • NEVER use...
MGJ User's Guide Manual - Page 6
... the disconnect chain or reset the emergency egress device to disconnect the door from the door operator. 1. Model MH for Model MHS
ADVERTENCIA PRECAUCIÓN
6
ATTENTION Chain Retaining Bracket (with pad locking provisions)
Hoist Chain
Manual Disconnect for Models MJ and MGJ
Electrical Interlock with Hoist Chain (when present) for instructions.
This chain can be...
MGJ User's Guide Manual - Page 8
...ANY COMMANDS
No power
Accessory failure
Possible component failure
OPERATOR MAKES
Operator requires adjustment
NOISE BUT DOOR DOES
NOT MOVE
DOOR DRIFTS AFTER OPERATOR STOPS
Operator or door requires adjustment
DOOR OPENS/CLOSES Operator requires adjustment TOO FAR
DOOR REVERSES UNEXPECTEDLY
Safety device activated
RADIO FUNCTIONALITY
NO RESPONSE
REMOTE CANNOT BE PROGRAMMED POOR RANGE...
MGJ User's Guide Manual - Page 12
... System Pneumatic Sensing Edge Kit
ANTENNA
EXT-ANT
PRESS TO
R ING
External Antenna:
The external antenna can be used to increase the radio receiver range.
86LM (...for maximum radio receiver range. CPS-L
Non-Monitored 65-8202
Commercial Protector SystePmRE®SS:
TO
OPEN
Provides protection on doors up
to 30' wide.
R ING WPB1LM
WPB3LM
WKP5LM
123 456 789
* 0#
Wireless Single...
MJ5011E QuickStart-2008 Manual - Page 1
...Follow ALL local electrical codes.
11 Adjust the limit switches to open and close to Model MH instructions above or below the door shaft, and as possible.
1b Bracket Shelf Mounting: The operator... Wall Mount: The operator should generally be pushed up /pull-down manually. An electrical interlock will operate again electrically.
4
Wrap chain drive around hand chain wheel (if provided).
...
MJ5011E QuickStart-2008 Manual - Page 2
... after completion of timer setting.
Press and hold the button on the logic board
(OPEN, CLOSE or STOP).
Press the desired button on the remote
control until the LED flashes...button (over 5 seconds) until LED flashes rapidly, then release. 4. QuickStart for the model MJ/MH/MHS door operator Medium Duty Logic
This QuickStart is safe for its intended use 3 of the STOP button. ...
MJ5011E Installation-2008 Manual - Page 3
.... The operator is recommended for use on the wiring type. The MHS operator is shipped from the factory in the door's path and automatically reverse a closing door. Steel
16 ga.
Steel Insulated
16 ga. FT
NOTE: On steel insulated doors, a 24 ga. Maximum Door Area (SQ. FT)
24 ga. Safety devices are highly recommended by...
MJ5011E Installation-2008 Manual - Page 5
... of the operator must be determined at the time of the door jamb. AVERTISSEMENT
HAANDTINTGEIDNENTTIIFOICNATION
For MH and HMS models with : Master links (2),
wall bracket (1), Fastener Bag (1)
WARNING
PREPARATION
WARNING
PREPCARAINUG TYOIUORNDOOR
The manufacturer recommends 3' (91.4 cm) of clearance in the door opening, hook the chain off to install the operator. WARNING
To prevent...
MJ5011E Installation-2008 Manual - Page 11
... of the door. • Or ANY other control (automatic or manual) is used .
AVERTISSEMENOTperator
Conduit
ATTENTION
^OPEN
CLOSE O STOP
^
^
^
Wire 3-button control station
Power
AUX AANUT X ANT AUX ANT
^^^^ TTC
LEARN STOP CLOSE OPEN LEDD14
1
2
3
4
5
6
7
LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN
^OPEN
CLOSE
O
STOP
Knockout
Logic Board
Remove factory jumper if external interlock is...
MJ5011E Installation-2008 Manual - Page 21
...obstructions. Electrical Interlock with pad locking provisions)...MHS
This operator includes both a floor level disconnect chain to electrically disable the operator controls.
1.
M A N U A L D I S C O N N E C T WARNING
This operator has provisions for manually operating the door in case of the chain keeper mounted on the wall.
2. Weak or broken springs or unbalanced door could result in an open door...
MJ5011E Installation-2008 Manual - Page 22
...stop button is not activated. D) Interlock input activated
➤ Verify jumper...; See SETUP RADIO ANTENNA. ➤ Use EXTERNAL ANTENNA kit (see ACCESSORIES page).
22
C) ...door for assistance.
B) TTC temporarily disabled
➤ Close and Open the door. See PROGRAMMING TTC section.
G) Possible component failure
➤ Call Technical Support for proper operation.
DOOR OPENS...
MJ5011E Installation-2008 Manual - Page 23
... flash 7 times when power is applied or cycled to install external door interlock. Interlock
Brown** Brown**
Orange Purple Yellow
Grey
Safety Limit Switch
Open Limit Switch
Grey
Close Limit Switch
23
AANTUX ANT
J2
TTC
LEARN STOP CLOSE OPEN LED
1
2
3
45
6
7
LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN
OPEN CLOSE STOP
Remove Jumper to the operator. (Not a logic...
MJ5011E Installation-2008 Manual - Page 31
...MH, and MHS.RING
10-9095
ANTENNA EXT-ANT
OPEN
Medium Duty Angle Mounting Bracket:
CLOSE
Heavy-gauge steel bracket. OPEN...OPEN
3-Button Tri-Colored Remote Control: Includes visor clip. ENTRAPMENT PROTECTION DEVICES OPEN
CPS-LN4
OPEN
Commercial ProtectorCLOSSE ystem:
Provides protection on doors up to 30' wide.
Key Control Station: Indoor flush mount, NEMA 1.
OPEN CLOSE
Antenna: External...
MJ5011E Installation-2008 Manual - Page 32
...
IMPORTANT NOTES: 1.
EXTERNAL INTERLOCK
Remove Factory Installed Jumper When Interlock is added to ensure proper installation and operation
with the Commercial Door Operator.
3 BUTTON STATION OR 3 POSITION KEYSWITCH WITH SPRING RETURN TO CENTER AND STOP BUTTON
STANDARD
2 OR MORE
KEY LOCKOUT
7635
7635
7635
Open Close Stop
Open Close Stop
Open Close Stop
Open
Close Stop
Keyswitch...
MJ (BLACK LINE) Manual - Page 2
... C2 (Standard) Momentary contact to OPEN & STOP, constant pressure to CLOSE, open override plus wiring for emergency manual door operation. See pages 13 and 14 for emergency manual door operation.
Bracket Mounting (rolling door)
A
A
18.50"
14.75"
A
A
7.00" 10.88"
15.78"
9.19"
Hand Chain Wheel present with electrical interlock for sensing device to 24...
MJ (BLACK LINE) Manual - Page 3
... not be switched on the opposite side of door, and in the door opening, hook the chain off to the building purlins... to remain functional, install an interlock switch.
• ALWAYS call a trained professional door serviceman if door binds, sticks or is imperative... securely and
with Bearing (Not Provided) Door Sprocket
5-1/2" (13.97 cm)
All MJ, MH, and HMJ series operators have dual output...
MJ (BLACK LINE) Manual - Page 5
...door operator.
1. To disengage, pull the chain and secure in the disengaged position by slipping the end through both openings in the the chain keeper.
Install Hand Chain (Models MH...floor
8. An electrical interlock will operate again electrically. Chain Retaining Bracket (with a manual hoist. Pull the disconnect chain (small chain) to operate the door again electrically. Release the...
MJ (BLACK LINE) Manual - Page 6
...as described below .
Repeat Steps 1 and 2 for close limit nut so that door will stop in open (N.O.) output are compatible with your operator.
LIMIT SWITCH ADJUSTMENT
WARNING WARNING NOTE: Make...edge wiring connections to the wall approximately halfway up reel. Proceed with top of door opening . After adjustment, release plate and ensure it seats fully in accordance with
...
MJ (BLACK LINE) Manual - Page 9
... wire or larger for an external interlock switch.
NEVER permit children to this manner. All standard radio receivers
(single channel residential type) may be connected in parallel with remote controls.
• Activate gate or door ONLY when it should generally be mounted to operate, or play with the OPEN button. When such a switch is...
MJ (BLACK LINE) Manual - Page 24
... to ensure proper installation and operation with the Commercial Door Operator. 5) Use 16 gauge or heavier wire for Warning Light
T1 CONTROL WIRING ONLY
ONE
2 OR MORE
ALL CONTROL WIRING TYPES
01-10701M
©2006, The Chamberlain Group, Inc. RADIO TO OPEN ONLY
EXTERNAL INTERLOCK
Warning Light will activate 15 sec. CONTROL CONNECTION DIAGRAM...
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