Installation Instructions
Motorized Electric Latch Retraction (MELR)
With Optional M91 Bolt Monitor, M92 Touchbar Monitor, and M93 Trim Monitor Connection
ED4000, ED5000 Series Exit Devices
This product can expose you to lead which is known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.
or in part without the express written permission of ASSA ABLOY Access and Egress Hardware Group, Inc. is prohibited.
MELR
ED4000, ED5000 Series Exit Devices
Installation Instructions
| TOC | Table of Contents | |
|---|---|---|
| 1 | Overview4 | |
| a | Functions4 | |
| b | Installation Notes5 | |
| c | Hinge Requirements5 | |
| d |
Wire Gauge Chart
5 |
|
| e | Power and Contact Ratings5 | |
| f | Wire Cover Installation6 | |
| g | Wire Locations and Positions7 | |
| h | DIP (Dual Inline Package) Switch Settings8 | |
| i |
ElectroLynx Wiring System
9 |
|
| 2 |
Power Mode
10 |
|
| a | Power Mode Installation 10 | |
| b | Power Mode Wiring 12 | |
| c | Configuration Instructions DIP Switch Settings 13 | |
| d | LED Signaling 13 | |
| e | Power Mode Troubleshooting 14 | |
| 3 | Timer Mode 15 | |
| a | Timer Mode Installation 15 | |
| b | Timer Mode Installation Wiring 16 | |
MELR
ED4000, ED5000 Series Exit Devices
Installation Instructions
| TOC | Table of Contents, continued | |
|---|---|---|
| c | Timer Mode Adjustment (Onboard Timer) 19 | |
| d | Configuration Instructions DIP Switch Settings 20 | |
| e | LED Signaling Chart 21 | |
| f | Timer Mode Troubleshooting 21 | |
| 4 | Optional M93 Trim Monitor Switch 23 |
Installation Instructions
1 Overview
The Corbin Russwin Motorized Latch Retraction (MELR), see Figure1, works with the ED4000 and ED5000 Series exit devices to provide remote-controlled latch retraction option. It is compatible with the following:
- M91 Bolt Monitor Switch: Provides indication of the position of the latch bolt. Used with security systems to monitor the latch bolt. Also used to activate automatic door operators upon latch retraction.
- M92 Touchbar Monitor: Provides indication of the pushbar being depressed. Used as a request to exit to shunt alarm systems, release electromagnetic locks or monitor egress.
- M93 Trim Monitor Switch: Provides indication of the device being operated from the outside. Used as a request to enter signal switch to shunt alarms. Also used to monitor entry.
NOTE: The MELR option is also compatible with hex key, cylinder key and fire rated mechanical configurations.
a Functions
The MELR option can be configured to work in either of two modes:
- Power Mode (See Section 2, Page 10): The device is not energized when locked. When power is applied, the pushbar and latch(es) will retract and remain in the retracted position until power is removed. Power is typically applied through a relay triggered by an access control device.
- Timer Mode (See Section 3, Page 15): The device is always energized and retraction is triggered by a momentary or maintain switch.
- When the timer circuit is closed using a momentary switch, the device retracts, remains retracted for a set duration, and releases. The duration of the retraction is set through an onboard timer setting.
- When the timer circuit is closed using a maintain switch, the device retracts. The device releases when the contact is opened.
Caution:
Disconnect all input power before servicing.
- Installer must be a trained and experienced service person.
- Wiring must comply with applicable local electrical codes, ordinances and regulations.
- Hex key or cylinder (M52) mechanical dogging CANNOT be used on Fire Rated Doors.
Installation Instructions
1 Overview, continued
b Installation Notes
- The MELR option pushbar works only with Corbin Russwin ED4000 and ED5000 Series exit devices.
- Always perform mechanical installation using the appropriate installation instructions, prior to electrical wiring.
- Earth Ground: Required for electrostatic discharge (ESD) protection, unless grounded through the metal door and frame.
c Hinge Requirements
| Hinge Information | ||||||
|---|---|---|---|---|---|---|
| Without Timer | With Timer | |||||
| Application | Wires | Recommended Hinge | Wires | Recommended Hinge | ||
| MELR | 3 | QC8 | 5 | QC12 | ||
| M91 MELR | 5 | QC8 | 7 | QC12 | ||
| M92 MELR | 6 | QC8 | 8 | QC12 | ||
| M91, M92 MELR | 8 | QC8 | 10 | QC12 | ||
| M93 MELR | 5 | QC12 | 7 | QC12 | ||
| M91, M93 MELR | 7 | QC12 | 9 | QC12 | ||
| M92, M93 MELR | 8 | QC12 | 10 | QC12 | ||
| M91, M92, M93 MELR | 10 | QC12 | 12 | QC12 | ||
d Wire Gauge Chart
| Wire Gauge Information | ||||||||
|---|---|---|---|---|---|---|---|---|
| Total One-Way | Load Current @ 24VDC | |||||||
|
Length of Wire
Run (ft.) |
1/4A | 1/2A | 3/4A | *1A | 1-1/4A | 1-1/2A | 2A | 3A |
| 100 | 24 | 20 | 18 | 18 | 16 | 16 | 14 | 12 |
| 150 | 22 | 18 | 16 | 16 | 14 | 14 | 12 | 10 |
| 200 | 20 | 18 | 16 | 14 | 14 | 12 | 12 | 10 |
| 250 | 18 | 16 | 14 | 14 | 12 | 12 | 12 | 10 |
| 300 | 18 | 16 | 14 | 12 | 12 | 12 | 10 | - |
| 400 | 18 | 14 | 12 | 12 | 10 | 10 | - | - |
| 500 | 16 | 14 | 12 | 10 | 10 | - | - | - |
| 750 | 14 | 12 | 10 | 10 | - | - | - | - |
| 1,000 | 14 | 10 | 10 | - | - | - | - | - |
| 1,500 | 12 | 10 | - | - | - | - | - | - |
| *When calculating voltage drop, use 1A as the recommended current draw for the MELR | ||||||||
e Power and Contact Ratings
MELR Contact Ratings
Voltage: 24VDC
- Filtered and regulated power supply
- Motor operating current: 600mA
- Motor hold current: 250mA
| Contact Ratings | ||||
|---|---|---|---|---|
| M91 Latch Bolt | M92 Touch Bar | M93 Trim | ||
| 200mA28VDC | 1A@30VDC | 1A@28VDC | ||
Installation Instructions
1 Overview, continued
f Wire Cover Installation
1. While holding motor harness, slide wire cover all the way into the device assembly.
Figure 2 Installing Wire Cover
2. Plug motor harness into controller.
Figure 3 Connecting Motor Harness
For installation assistance contact Corbin Russwin
Installation Instructions
1 Overview, continued
f Wire Cover Installation, continued
3. Slide controller into touch bar, making sure tab is securely attached over end of chassis.
g Wire Locations and Positions
MELR option devices are supplied with one (1) 4-pin and one (1) 8-pin Molex® connector (See Figure 5). Molex connectors allow simple installation using the ASSA ABLOY ElectroLynx® system.
** M93 NO/NC (Normally Open/Normally Closed) is selectable on controller. Factory preset is NO. See Section 4 Optional M93 Trim Monitory Switch for details.
Installation Instructions
1 Overview, continued
h DIP (Dual Inline Package) Switch Settings
DIP Switch assignments are as follows, starting from left in Figure 6:
a. Closed (Switch #1 set to ON ) when selecting LBM/NC (Normally Closed) contact.
Or
b. Closed (Switch #2 set to ON ) when selecting LBM/NO (Normally Open) contact.
Note:
- Only 1 or 2 should be closed at one time, not both.
- 3: Closed when bypassing external trigger, i.e. Power Mode.
- 4,5,6: Select software options, allows up to 8 Time/Delay settings (See Section 3 Timer Mode).
- Default Setting: LBM/NO and Power Mode set to ON.
8
Installation Instructions
1 Overview, continued
i ElectroLynx Wiring System
Important:
Do Not Force - ElectroLynx connectors plug and lock together in only one way. See Figures 7 & 8.
Figure 7 ElectroLynx Connections
Figure 8 Typical ElectroLynx Wiring
NOTE:
- Devices ordered with M91, M92, M93 and MELR Options wired in Timer Mode require all 12 wires.
- The 3" Harness is not included with the product, door or hinge and must be ordered separately.
9
Installation Instructions
Figure 9 Typical ElectroLynx Power Mode Wiring
2 Power Mode
a Power Mode Installation Instructions
In this configuration, the device is not energized when locked. When energized with a 24 volt input, the pushbar and latch(es) will retract and remain in the retracted position until power is removed. Power is typically applied through a relay triggered by an access control device. For installations using the onboard timer circuit, refer to Section 3 Timer Mode.
Rail retracts when power is applied and releases when power is removed.
1. Mount ED4000 or ED5000 Series exit device using mechanical installation instruction sheet(s) provided.
NOTE:
- Ensure proper mechanical function before attempting electrical retraction:
- Verify the pushbar can be fully depressed and the latch is fully retracted.
- On vertical rod devices, verify latch bolts do not enter hold-back position until pushbar is fully depressed.
- Adjust device mechanically as required, before applying power.
- 2. Connect the ElectroLynx harness in the door. See Figure 9.
- * M91 NO/NC (Normally Open/Normally Closed) is selectable on controller (refer to M91 DIP switch instructions in Section 3). Factory present is NO.
- 3. Plug the 8-pin ElectroLynx connector from the pushbar into the 3" ElectroLynx harness or splice into non-ElectroLynx harness. See Figure 10.
Figure 10 Non-ElectroLynx Power Mode Wiring MELR Wires with ElectroLynx Connector Removed
Installation Instructions
2 Power Mode, continued
a Power Mode Installation Instructions, continued
4. Feed the 3" harness through the 1" hole in the door and secure the pushbar to the door using the mounting bracket and two (2) supplied screws (Figure 11).
NOTE:
- Do not install the end cap until electrical operation is verified in order to confirm LED signaling.
- Do not discard the end cap and hardware.
- 5. Ensure DIP switch (position 3) enables Power Mode (Figure 12)
Figure 12 DIP Switch Setting for Power Mode Installation
6. Connect the ElectroLynx harness to the hinge and secure the hinge to the door.
NOTE:
- Make sure no wires are pinched or damaged in the process.
- Refer to detailed wiring instructions under Power Mode wiring.
- 7. Apply a 24V source which complies with the Content Ratings table MELR contact ratings. Confirm the LED is blinking, the system fully unlocks and all bolts clear the strikes. Troubleshoot the device if issues are observed using the steps outlined at the end of this section.
- 8. Store excess wiring under end cap and assemble with provided screws. Avoid pinching wires.
NOTE :
For installation assistance contact Corbin Russwin
Earth Ground is required for Electrostatic Discharge (ESD) protection unless the metal door and frame are already earth grounded; otherwise, earth ground wiring is required at pin 4. See Figure 9.
or in part without the express written permission of ASSA ABLOY Access and Egress Hardware Group, Inc. is prohibited.
Installation Instructions
2 Power Mode, continued
b Power Mode Wiring
ElectroLynx Opening Installation
This is the simplest installation method, requiring the installer to plug the ElectroLynx connectors from the exit device to the harness to the hinge and then to the pigtail, which is connected to the access control system.
Requirements:
- MELR Exit Device
- 3" ElectroLynx connector harness (not supplied with MELR option)
- McKinney QC ElectroLynx hinge (type of hinge depends on the application)
- ElectroLynx door
Non-ElectroLynx Opening Installation
Standard door with standard electric hinge. Molex connectors with flying leads purchased separately (See Figure 13 and the Molex Connectors Table).
| Molex Connectors | |||||
|---|---|---|---|---|---|
| Size | Both Ends | To PINS | |||
| 3 Inch | QC-C003 | QC9C003P | |||
| 6 Inch | QC-C006 | QC9C006P | |||
| 12 Inch | QC-C012 | QC9C012P | |||
Figure 13 Molex with 12-Pin Connector Pinned
To identify part numbers and order harness(es), visit the McKinney website, www.mckinneyhinge.com, and search the catalog for ElectroLynx.
If Molex pinned connectors are not available, remove the ElectroLynx connector from the MELR Exit Device and wire nut the MELR wires to the wires from the electric hinge (color coordinating wire colors is recommended).
Power Mode Wiring
Use when wiring in Power Mode. See Figure 14.
NOTE:
- Onboard timer will not function in Power Mode. Add external time delay, if necessary.
- The switch is wired between the power supply and the load. Do not cycle the power supply.
Figure 14 MELR ED4000 and ED5000 Series Exit Device Typical Power Mode Wiring
Installation Instructions
2 Power Mode, continued
c Configuration Instructions DIP Switch Settings (M91)
For MELR applications using the optional M91 latch bolt monitor switch, pin 5 of the 8-pin ElectroLynx connector will be either a NO contact or NC contact, depending on the position of the DIP switches on the motor controller faceplate (Figure 15).
DIP Switch Setting for M91 Latch Bolt Monitoring NO (Default) Shown
NC Alternative DIP Switch Setting
d LED Signaling
| Signal | Cause | Troubleshooting |
|---|---|---|
| Dark / Unlit | Controller microprocessor is not active | Confirm connections and incoming power |
| Steady Flashing | Normal operation | Check that Power Mode switch is set |
| Solid Light | Input voltage is dropping out of operating range | Check wire run and power supply output |
|
2 Flashes
Followed by Pause |
Retractor sensor problem | Call 1-800-810-WIRE (9473) for assistance |
Installation Instructions
2 Power Mode, continued
e Power Mode Troubleshooting
Prior to electrical troubleshooting, confirm that the mechanical system properly functions; i.e., that the pushbar fully retracts all latches and the door opens freely. See the table on page 14. Refer to applicable Corbin Russwin ED4000 and ED5000 Series Exit Device product instruction sheet to correct mechanical installation issues.
IMPORTANT:
* ALWAYS disconnect power before making any mechanical adjustments to the system.
Installation Instructions
3 Timer Mode
a Timer Mode Installation Instructions
In this configuration, the device is always energized with a 24 volt input, and a timer circuit is opened or closed to control pushbar retraction. A momentary or maintain switch is typically used to perform this operation. For installations where the power input is cycled to retract the device, refer to Section 2: Power Mode.
1. Rail retracts when timer input is closed. Mount ED4000 or ED5000 Series exit device using mechanical installation instruction sheet(s) provided.
Note:
Ensure proper mechanical function before attempting electrical retraction:
- Verify the pushbar can be fully depressed and the latch is fully retracted.
- On vertical rod exit devices, verify that the latch bolts do not enter hold-back position until the pushbar is fully depressed.
- Adjust device mechanically, as required, before applying power.
- 2. Ensure DIP Switch (position 3) disables Power Mode (Figure 16). Set to OFF to disable.
- 3. Connect the ElectroLynx harness in the door (Figure 17).
- 4. Plug the 8-pin and 4-pin ElectroLynx connectors from the pushbar into the 3" ElectroLynx harness or splice into a non-ElectroLynx harness.
- 5. Feed the 3" harness through the 1" hole in the door and secure the pushbar to the door using the mounting bracket and two (2) supplied screws.
Note:
Do not install the end cap until electrical operation is verified in order to confirm LED signaling. Do not discard the end cap and hardware.
FM434 07/20
Installation Instructions
3 Timer Mode, continued
a Timer Mode Installation Instructions, continued
- 6. Connect the ElectroLynx harness to the hinge.
- 7. Plug the door harness's 8-pin and 4-pin connectors into the hinge's ElectroLynx connector.
- 8. Secure the electric hinge to door.
Note:
Make sure no wires are pinched or damaged in the process.
Refer to detailed wiring instructions under Timer Mode wiring.
- 9. Apply 24V according to MELR contact ratings: Confirm that the LED is blinking and close the timer input circuit to retract the device. When the system retracts electrically, confirm that it fully unlocks and that all bolts clear the strikes. Troubleshoot the device if issues are observed using the steps outlined at the end of this section.
- 10. Store excess wiring under end cap and assemble with provided screws. Avoid pinching wires.
b Timer Mode Wiring
ElectroLynx Opening Installation
This is the simplest installation method, requiring the installer to plug the ElectroLynx connectors from the exit device to the harness to the hinge and then to the pigtail, which is connected to the access control system. See Figure 18 on the next page.
Requirements:
- MELR Exit Device
- 3" ElectroLynx connector harness (not supplied with MELR option)
- McKinney QC ElectroLynx hinge (type of hinge depends on the application)
- ElectroLynx door
* M91 NO/NC (Normally Open/Normally Closed) is selectable on controller (refer to M91 DIP switch instructions in Section 3). Factory present is NO.
16
** M93 NO/NC (Normally Open/Normally Closed) is selectable on controller. Factory present is NO. See Section 4 Optional M93 Trim Monitor Switch for details if NC is preferred.
Installation Instructions
3 Timer Mode, continued
b Timer Mode Wiring, continued
Figure 18 Timer Mode Installation
Non-ElectroLynx Opening Installation
Standard door with standard electric hinge: Remove the Electrolynx connector from the MELR Exit Device and wire nut the MELR wires to the wires from the electric hinge. Color coordinating the wires is recommended.
| Molex Connectors | ||||
|---|---|---|---|---|
| Size | Both Ends | To PINS | ||
| 3 Inch | QC-C003 | QC9C003P | ||
| 6 Inch | QC-C006 | QC9C006P | ||
| 12 Inch | QC-C012 | QC9C012P | ||
To identify part numbers and order harness(es), visit the McKinney website, www.mckinneyhinge.com, and search the catalog for ElectroLynx.
* M91 NO/NC (Normally Open/Normally Closed) is selectable on controller (refer to M91 DIP switch instructions in Section 3). Factory present is NO.
Installation Instructions
3 Timer Mode, continued
b Timer Mode Wiring, continued
Timer Mode Typical Wiring
For use when wiring in Timer Mode (Figure 19) using the onboard timer. If more than 20 seconds timed delay is necessary, an external timer delay relay is required (not provided).
Note:
- 24V supply is constant in Timer Mode.
- Refer to settings in SECTION 3 Configuration Instructions DIP Switch Settings.
Figure 19 Timer Mode Typical Wiring
Figure 20 Non-ElectroLynx Timer Mode Connection MELR Wires with ElectroLynx Connector Removed
MELR
ED4000, ED5000 Series Exit Devices
Installation Instructions
3 Timer Mode, continued
c Timer Mode Adjustment (Onboard Timer)
The 24 volt input is always energized and the system retracts when the timer input circuit is closed.
- When the timer circuit is closed utilizing a momentary switch, the device retracts, remains retracted for a set duration, and releases. The duration of retraction is set using an onboard timer setting (0 – 20 second timer adjustment). The countdown begins when the pushbar is first retracted.
- The device retracts when timer circuit is closed using a maintain switch and releases when circuit is reopened.
Note :
- 24V supply is constant in Timer Mode. The duration of retraction is determined by whichever is longer: the maintain switch closure or the onboard timer delay.
- If more than a 20 second delay is necessary (exceeding the maximum setting), an external timer delay relay is required (not provided).
- Refer to settings in Figure 21 for DIP Switch timer delay settings.
For installation assistance contact Corbin Russwin
or in part without the express written permission of ASSA ABLOY Access and Egress Hardware Group, Inc. is prohibited.
Installation Instructions
3 Timer Mode, continued
d Configuration Instructions DIP Switch Settings (for M91 and timer duration)
For MELR applications using the optional M91 latch bolt monitor switch (M91 MELR), pin 5 of 8-pin ElectroLynx connector will be either NO or NC contact depending on position of the DIP switches on motor controller faceplate.
DIP Switch Setting for M91 Latch Bolt Monitoring NO (Default) Shown
NC Alternative DIP Switch Setting
Figure 19 DIP Switch Settings
20
Installation Instructions
3 Timer Mode, continued
e LED Signaling Chart
| Signal | Cause | Troubleshooting |
|---|---|---|
| Dark / Unlit | Controller microprocessor is not active | Confirm connections and incoming power |
| Steady Flashing | Normal operation | Cycle device by closing the timer circuit |
| Solid Light | Input voltage is dropping out of operating range | Check wire run and power supply output |
|
2 Flashes
Followed by Pause |
Retractor sensor problem | Call 1-800-810-WIRE (9473) for assistance |
f Timer Mode Troubleshooting
Prior to electrical troubleshooting, confirm that the mechanical system properly functions; i.e., that the pushbar fully retracts all latches and the door opens freely. Refer to applicable Corbin Russwin ED4000 or ED5000 Series Exit Device product instruction sheet to correct mechanical* installation issues.
IMPORTANT:
* ALWAYS disconnect power before making any mechanical adjustments to the system.
Installation Instructions
3 Timer Mode, continued
f Timer Mode Troubleshooting, continued
For installation assistance contact Corbin Russwin
Installation Instructions
4 Optional M93 Trim Monitor Switch
For MELR applications using the optional M93 trim monitor switch, the NO or NC output can be selected on the controller. Factory preset is NO, however to change to NC perform the following:
- 1. Remove the controller for the exit device.
- 2. Move the trim monitor switch wire harness to the desired configuration as shown in Figure 22.
- 3. Place the controller back into the Exit Device, ensuring that the tab is attached to the Exit Device chassis.
N OTE:
Connector position is relative to the block.
Trim Monitor Switch Wire Harness
Figure 20 Changing M93 Preset
For installation assistance contact Corbin Russwin
or in part without the express written permission of ASSA ABLOY Access and Egress Hardware Group, Inc. is prohibited.
Corbin Russwin, Inc. 225 Episcopal Road Berlin, CT 06037 USA Phone: 800-543-3558 Fax: 800-447-6714 www.corbinrusswin.com