Metra Electronics Metra Electronic Lock User manual
Lock Installation Manual
Contents
Electronic Lock Components 1
Electronic Lock Description 1
Mounting Screw Information 1, 8
Lock Wiring 2
Locker Door Hinge Selection 2
Electronic Lock Positioning 3
Locker Numbering
-Preparing for Electronic Lock wiring of Lockers 3
Electronic Lock wiring preparation 4
Preparing to crimp the Flat Ribbon cable 5, 6
-Crimping tool & crimp connectors 5
-Crimping the Flat Ribbon cable 6
Mounting the Electronic Lock body 7-16
-Metra Centralised Lock 7
-Metra RFID DOT Lock 11
Adjusting the Door Ejector spring force on the Electronic Lock body 17
Electronic Lock Centralised - Technical drawing 18
Electronic Lock RFID DOT - Technical drawing 19
Cable entry hole drilling guide for Electronic Lock 20
1
Electronic Lock Components.
•Lock Body
•Strike (Grey plastic block)
•Strike loop (Stainless steel wire loop)
Image of Electronic Lock: Image of Strike and Strike loop:
Electronic Lock Description.
The Electronic Lock body is mounted inside the Locker, while the Door Strike is mounted on the Locker door.
Each Electronic Lock is connected to the Locker Controller electronics board(s) by way of a six wire flat ribbon cable.
Mounting Screws.
Use Pan Head screws only.
No Countersunk screws are to be used.
Damage to the lock can occur and this is not covered under warranty, if the wrong type of screws are used.
Stainless Steel PH2 screws are recommended for harsh environments or Zinc plated for office areas.
•32 mm 6g for Front of lock (x2)
•25mm 6g for Rear of lock (x2)
•16mm 6g for Strike –Mounted to locker door (x2)
•4mm Washers for Strike screws (x2)
2
Lock Wiring.
•Flat ribbon cable (six way)
•Six pole connectors for flat ribbon cable
Image of Six pole connector crimped to flat ribbon cable:
Locker Door Hinge selection.
Select hinges that are of good quality, that will not shift position easily during use.
–i.e. Hinges that won’t drop out of alignment.
If the hinges have a return spring, it should be weak and not prevent the door from ejecting when unlocked.
Therefore any “Snap Locked” Sprung hinges are not suitable.
No Snap Locked Hinges Some Spring Free hinges may be suitable;
Suitable hinges are “Leaf” types;
3
Electronic Lock Positioning.
The position of the Metra Electronic Lock, in a locker should be closest to the spot where users are handling the doors;
For example:
Locker doors with handles;
-The Electronic Lock should be mounted centrally behind the handle, so that the Door Strike receives the most
amount of force to properly close and lock the locker door.
Locker doors without handles;
-Usually the Electronic Lock would be mounted centrally [in the vertical plane]
-Some doors such as “L” or “Z” shaped doors may require the Electronic Lock to be mounted closer to the area of
the door with most mass.
Locker Numbering –Preparing for E-Lock wiring of lockers.
The Locker wiring should start at the Top LHS of the locker bank/carcass, then run Down to the last locker equipped with
an E-Lock, then across to the next row of lockers starting again at the top, working down. Please see image below;
* Note: The numbers are the “Logical locker numbers” each number refers to the Lock/cable number and the position
That the cable is plugged into on the controlling electronics board.
Normally, each locker carcass would be constructed of a single vertical row of lockers, ganged together to form the
Locker bank. This allows for the routing of cables in channels and future maintenance.
The physical locker numbers can be from 1 >> 9999
4
Electronic Lock wiring preparation.
1. The cable lengths can be calculated by:
[Depth of carcass + 100mm (extra cable for lock)] + [Distance to centre of Control cabinet + 500-1000mm] = Total
* Note: The cable lengths may need to be increased for the Top and Bottom lockers to account for slightly longer
lengths of cable required, as they should be bundled at the centre locker in the Locker carcass.
Lock wiring - Should have approx. 100mm of cable slack.
Control Cabinet –Lock wiring should be 500-1000mm of cable
Pulled through slot.
5
2. Mark each end of the cable sequentially, starting at the Top LHS locker, moving down, then across Top RHS etc.
The cables should start at # 1 and finish at the last logical Locker number.
In the example on the following page (Page 4), i.e. 1 through 32.
(RED numbers are the logical Locker numbers, NOT the actual locker numbers)
If there were say, 48 lockers in the Locker bank, the cables would be marked 1 through 48, etc.
3. Each individual Locker carcass should have it’s cables bundled together with electrical tape or similar, spaced a
reasonable distance apart and also close to the end of cable bundle. The Cable bundle should then be coiled up
and taped to the top of the Locker carcass.
4. Label each Locker carcass to help identify it’s mate, so as not to mix up carcass’s during installation.
Preparing to crimp the flat ribbon cable.
5. Locate the Metra 16x6 crimp tool and connectors.
6. The crimp connectors have a small moulded triangle indicating Pin 1.
7. Insert the crimp connectors into the rear of the Metra crimp tool.
Once inserted the crimp tool should look like this. –The crimp connectors can only be inserted one way.
*Note: Be careful not to squeeze the handle until the cable is inserted, as the connectors are easily crimped
And can result in unusable connectors. (Once crimped the connectors can’t be opened easily)
6
8. The Flat six cable needs to be cut to the desired length.
(approx. 100mm excess at the Lock for maintenance purposes and 500-1000mm at the control cabinet)
i.e. The cable lengths can be calculated by:
[Depth of carcass + 100mm (extra cable for lock)] + [Distance to centre of Control cabinet + 500-1000mm] = Total.
* Note: The cable lengths may need to be increased for the Top and Bottom lockers to account for slightly longer
lengths of cable required, as they should be bundled at the centre locker in the Locker carcass.
9. The flat cable should be inserted into the connector so that the RED stripe is aligned to the
Triangle marked on the connector and the RED line marked on the Metra 16x6 Crimp tool as shown below.
Make sure the cable is perpendicular to the cable and not on an angle.
10. Now squeeze the Metra crimp tool’s handle to crimp the flat ribbon cable to the connector.
–A click should be heard.
11. Once the flat ribbon cable has been successfully crimped to the connector, trim off the excess cable with a knife
or cutters. –Take necessary safety precautions and use appropriate PPE if using a knife to trim the cable.
7
12. If crimping either end of the same flat cable, make sure the connectors align as shown below.
*Note: The connectors must be aligned in the same direction on the flat cable, otherwise the Electronic Lock will
not function.
Mounting the Electronic Lock Body.
1) Centralised Locks.
•Firstly connect the crimped Flat ribbon cable to the Lock Body. –see below.
•Insert then slide the crimped connector into the Electronic Lock, as shown.
•Make sure the connector is all the way down inside the Electronic Lock, with the connector keyway facing out.
* Make sure the cable is oriented correctly
•The Lock can now be mounted to the inside of the Locker cabinet, push the excess flat cable back into the Cable
Entry hole, taking care not to damage the flat cable.
8
•Next, the Lock Body should be mounted first and then the door strike.
•There is a single type of Lock Body and it can be used for both Left and Right opening locker doors.
•(The lock is simply flipped over, as the mounting holes allow this)
•The Lock Body is usually placed on the side of the locker, or for very narrow lockers the Lock Body can be placed at
either the top or bottom of the locker.
•Use the following mounting screw information, to attach the Lock Body to the locker cabinet wall and mounting the
strike to the locker door.
•(For HPL or similar materials, it is best to tap 4mm threads or use threaded inserts, to mount the Lock Body and
Strike)
Mounting Screws
Use Pan Head screws only.
No Countersunk screws are to be used.
Damage to the lock can occur and this is not covered under warranty, if the wrong type of screws are used.
Stainless Steel PH2 screws are recommended for harsh environments or Zinc plated for office areas.
•32 mm 6g for Front of lock (x2)
•25mm 6g for Rear of lock (x2)
•16mm 6g for Strike –Mounted to locker door (x2)
•4mm Washers for Strike screws (x2)
Mounting the Electronic Lock Body. –Continued.
13. The Electronic Lock body should be mounted so that the front face of the lock is slightly proud or flush with the
front face of the Locker carcass. If rubber bumpers are used, the Lock body must be moved further out.
The Electronic Lock body MUST NOT BE BEHIND THE FRONT FACE OF THE LOCKER CARCASS.
OK –Electronic Lock body is flush with the front
face of the locker carcass.
Locking is possible
9
Mounting the Electronic Lock Body. –Continued.
•The electronic Lock body should be mounted first and then the Door strike.
•Make sure the crimped flat ribbon cable is connected properly to the Electronic Lock.
•Push the Electronic Lock against the inner locker wall and push/fold the excess flat ribbon cable into the cable
entry hole, being careful not to damage the cable.
•Using the appropriate screws, firmly screw the Electronic Lock body to the locker carcass wall.
Being careful to not to overtighten the screws, as this can damage the Electronic Lock, by deforming it.
Damage to the Electronic Lock by overtightening the screws is not covered under warranty.
OK –Electronic Lock body is slightly proud of
the front face of the Locker carcass.
Locking is possible
WRONG!! –Electronic Lock body is behind
the front face of the Locker carcass.
The Locker door strike cannot fully engage
into the Electronic Lock body.
Locking is NOT possible!
10
11
2) RFID DOT Locks.
The lock body should be mounted first and then the door strike accordingly. The body is placed on the locker side (for very
narrow doors can be also top or bottom). Drillings should be done in accordance with the drawing and the screw type.
Insert the connector, fold the extra wire (see “wiring”) and screw the lock to the locker carcass.
NOTE:
Do not over-tighten the screws as they can deform the lock. This may stop it from working and such damages are NOT
covered by warranty!
OK –Lock tip is even with
the inner plane of the
door. The door will reach
the lock tip.
Locking is possible.
OK –Lock tip is over the
inner plane of the door.
The door will reach the
lock tip.
Locking is possible.
WRONG! –Lock tip is
behind the inner plane of
the door and the door
CANNOT reach the lock tip.
Locking is NOT possible.
12
NOTE:
If the edge of the locker door is not overlapping the inner edge of the locker compartment for at least 6mm, a spacer for
the lock is required. As a space, different solutions are possible. The space can also be used to hide the connection
cable.
OK OK WRONG!
•Procedure
Step 1:
Mounting holes for the electronic lock should be predrilled in the factory according to the specifications in appendices
and according to the requirements described in the chapter. Note: If the lockers are contructed from HPL (or similar)
then metal threaded inserts will be required to be pressed into the pre-drilled holes for the screws to engage
with.
13
Step 2:
Fix the lock in place with 4x screws. NOTE: screws are not supplied by Metra Australia.
Step 1:
Mounting holes for the door strike should be predrilled in the factory according to the specifications in appendices and
according to the requirements described in the chapter. Note: If the lockers are contructed from HPL (or similar) then
metal threaded inserts will be required to be pressed into the pre-drilled holes for the screws to engage with.
14
Step 2:
For easier mounting, first stick the plastic cover over the metal pin to the plastic base as shown below.
Step 3:
First fix the strike with two screws. Use washers between the screw and plastic strike body. Then fix the front cover
including the antenna and the protective plastic. Use the right length (according to the door thickness) self-tapping screws.
When screw is tightened its head should be in line with the base. NOTE: Screws are not supplied by Metra Australia.
Consult with Metra Australia before choosing the screws.
15
NOTE: If the lockers are precisely made and quality hinges are used, the strike position does not vary from one to another.
According to strike position in the first locker, all remaining can be positioned the same just on optical evaluation to speed-
up the assembly procedure. Final corrections can be done during functional test of the locker if needed.
•Final Operational test of the locker.
Final check of the locker and mounting should be done after the lock is operational and connected to the control card or
test unit.
Place the Metra mounting jig on the loop and firmly close the
door to position the strike and then tighten the screws. Do not
over-tighten the screws, the wire loop should still move freely.
Remove the mounting jig.
CORRECTLY TIGHTEND SCREWS.
Try moving the wire loop left and right in the mount. If correctly
tightened, the wire loop should be able to move..
16
•Electronic Lock set-up.
These works are typically carried out by Metra Australia technicians and are listed here for reference only.
MEW controllers have at least two operating modes: Construction and normal.
Enter the construction mode of operation. Consult the appropriate MEW Controller Technical Manual for details.
Check 1:
Press the ejector to check the operation. The motor should
operate swiftly. If not, check the wiring or loosen the screws
slightly..
Check 2:
Close the doors. When closed and locked, the doors should
have a fraction (~1mm) of “free movement”under the
spring.
First reset the indexes on the connected Electronic RFID DOT
locks by pressing and holding the Parameters Request button
for more than 8 seconds (until the second acoustic signal is
generated). When you release the button, three short acoustic
signals are generated and all connected electronic RFID DOT
locks will start to blink rapidly indicating that the indexes were
erased.
Carry out re-indexing as per Technical manual and carry out final
test.
17
Adjusting the Door Ejector spring force on the Electronic Lock body.
Depending on the door size and hinge types, the Lock Door ejector spring force may need to be increased or decreased.
The Door Ejector is an important part of the Electronic Lock and should be able to push the Locker Door open when
unlocked.
For the great majority of Locker hinges and Locker Doors, the default factory set spring force is adequate.
However if the Locker Doors are very small, or large and heavy, the Door Ejector spring force may need to be adjusted.
This is achieved by screwing in a 2.5/16 mm long self-tapping countersunk screw into position “A” or “B” on the Electronic
Lock. –Make sure the screw head is flush and not protruding. - See below.
18
Electronic Lock –Centralised: Technical drawing.
Overhead view of Electronic Lock Body & Strike
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