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Memco Elite
INSTALLATION SHEET
SHEET NO. 618 850
SYSTEM DESCRIPTION
The 618 safety system consists of a transmitter detector (TX) and a receiver detector (RX) mounted on, or
beside, the lift car doors. The detectors generate a light curtain of infra-red beams across the lift
entrance. If a beam is broken then an output is switched to re-open the lift doors.
INSTALLATION
(a) Dynamic Installation
The 618 can be mounted on the car doors using the standard fixing kit provided (Fig 1).
1.
Position each detector on the car door. Check the detectors will be:-
• fitted approximately 5mm above the sill
• aligned level and straight with each other
2.
Mark or spot through the five fixing holes.
3.
Remove the detectors from the door before drilling to avoid swarf entering the detectors.
4.
Drill the five fixing holes in the door using a 3.0mm drill.
5.
Screw the detectors to the door using the No 6x16 self-tapping screws and shakeproof washers provided.
6.
Secure the cables with the P-clips and No 8x12mm self-tapping screws provided. Ensure the cables are
securely held, there are no tight bends and they are not stressed or stretched as the doors move.
7.
Important! Screw the earth wire ring tag to the lift door using the No 8 screw and shakeproof washer
provided. The earth wire must be fitted to ensure the unit is properly grounded. Check also that the door
itself is grounded to the lift.
Fig 1:
Dynamic Installation
MEMCO LTD, CLYDE HOUSE, REFORM ROAD, MAIDENHEAD, BERKSHIRE, SL6 8BY, UK. Ph +44 (0)1628 770734 Fx +44 (0)1628 621947 www.memco.co.uk
MODEL 618
ISSUE 2
Fig 2: Static Installation
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Summary of Contents for Memco 618
- Page 1 The earth wire must be fitted to ensure the unit is properly grounded. Check also that the door itself is grounded to the lift. Fig 2: Static Installation Fig 1: Dynamic Installation MEMCO LTD, CLYDE HOUSE, REFORM ROAD, MAIDENHEAD, BERKSHIRE, SL6 8BY, UK. Ph +44 (0)1628 770734 Fx +44 (0)1628 621947 www.memco.co.uk...
- Page 2 Static Installation The 618 can be mounted to the car using the static fixing kit (Figs 2, 3, 4). This fixing kit must be ordered separately (Part No 616 800-010). Fix each detector to a long vertical bracket using the M3.5 nuts, bolts and washers provided.
- Page 3 Fig 5: System Connection - Using a Model 280/281 (b) Using Direct Connection Often the 618 can be directly connected to the lift-controller or door-operator. In such cases the output transistor inside the 618 TX detector directly drives the “door-reopen” circuit on the lift.
- Page 4 Important • Do not shorten Memco cables by cutting them. (Different wire colours may be used inside) • Only use Memco cable between the RX/TX detectors and the car-top terminal block. (The Memco cable is specially shielded.
- Page 5 TO DOOR OPERATOR OR LIFT CONTROLLER Door Re-Open DC Supply (11-30V) ‘Trig Output’ BLUE ‘DC Supply’ YELLOW ‘Timeout Enable’ ‘0V’ ORANGE ORANGE ‘0V’ ‘LINK’ WHITE WHITE ‘LINK’ Fig 7. System Connection - Using Direct Connection LED Operation The TX detector has two LEDs for troubleshooting that are positioned at the top end of the detector. LED Status Symptom Possible Cause...
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