SP1 Installation Instructions
Contents
1. SP 1 s internal timer but the lock will still release for safety as long as the button is held Never cut the wires from the switch to the circuit board If the switch is not used it must be left inside the backbox as its wires are part of the circuit PN 500 15600 Page 3 Rev D 03 11 7 ADJ USTI NG SENSITIVITY The sensitivity pot see Figure 1 must be adjusted for proper operation The setting depends somewhat on whether the unit is mounted on a metal or non conducting surface To perform this adjustment you have to start with the unit completely wired receiving power and mounted as it will be used NOTE the top screw includes the spring and ring terminal underneath that creates the electrical connection between the plate and the sensor Turn the timing pot all the way counter TO ADJUSE SENSITIVITY ROTATE PLATE ENOUGH clockwise the shortest time between tests of TO REVEAL SENSITIVITY operation Re tighten the top screw and turn POT RETIGHTEN TOP SCREW HOLDING PLATE AND THEN ADJUST POT the sensitivity pot clockwise without touching the plate until the LED just comes on In this condition sensitivity is so high that the unit is on all of the time Slowly rotate the pot counter clockwise until the LED goes out and then another 15 degrees counter clockwise This is generally a good setting Before re attaching the plate test by touching the plate and observing that the LED comes on test with gloves if you expec2. surface mounting on dry wall or other material 8 x 1 1 2 Sheet metal screws are provided for this purpose Alternately if you are putting the SP 1 over a US type backbox you can use two machine screws supplied to mount into the standard backbox tab threads Note that the stainless steel plate must be isolated from any conductive metal surface At least one inch of separation must be maintained between the edge of the plate and any protruding metal piece 3 WIRING The SP 1 has 6 colored wires which are for sensor power and DPST relay output Red DC Power Black DC Power White Relay Common Pole 1 Green Relay Normally Closed Pole 1 Blue Relay Common Pole 2 Orange Relay Normally Open Pole 2 Copyright 2011 all rights reserved PN 500 15600 Page 1 Rev D 03 11 The relay has 2 amp contacts the operation of the SP 1 is fail safe When the SP 1 receives power its control relay automatically energizes It de energizes when the plate is touched For applications releasing an electric lock the following drawing Figure 2 shows typical connections of sensor power supply and both fail safe secure when powered or fail secure released when powered electric locks Note installation of the MOV in parallel with the electric lock The MOV is supplied loose with the SP 1 It is a black or blue disk like component with two bare wires for connection The MOV acts to suppress the inductive kickback from the lock
3. R BLUE RELAY COM2 CABLE ELECTRIC feat Ses LOCK NOTE 1 MOV NOT NEEDED IF SECURITRON MAGNALOCK USED NOTE 2 POWER SUPPLY MUST ALWAYS CONNECT DIRECTLY TO SENSOR OTHER CONTROL SWITCHES SHOULD BREAK OR PARALLEL RELAY CONTACTS NOTE 3 INPUT POWER POLARITY MUST BE OBSERVED 3 1 DOUBLE BREAK WIRING Many installations include a controlled entry device such as a digital keypad or card reader Such devices typically have a REX request to exit input If the REX input alone is used for exiting a safety reliability problem will exist If the entry device malfunctions exit will not be possible and people may be trapped We therefore always recommend double break wiring which is supported by the SP 1 because of its two pole relay The SP 1 s NC contacts are used to break power to the fail safe electric lock while its NO contacts trip the REX input of the controlled entry device This releases the lock a second time hence the term double break If the controlled entry device fails for any reason direct exit is still possible This type of circuit works only with fail safe locks but these comprise the great majority of lock types used for safety related exit PN 500 15600 Page 2 Rev D 03 11 FIGURE 3 DOUBLE BREAK WIRING POWER SUPPLY 12 24 VDC BLACK POWER WHITE RELAY COM1 CABLE pe FAIL SAFE ELECTRIC Loas LOCK ENTRY CONTROL LOCK CONTROL NC CONTACTS ENTRY CONTROL REX INP
4. UT 4 TIMED OPERATION In timed operation the SP 1 will operate its contacts for 1 35 seconds after it is touched Time duration is set by adjusting the potentiometer located in the center of the control circuit board see Figure 1 The pot is factory set for approximately 7 seconds Time is increased by turning the pot clockwise Timing is of the retriggerable off delay type This means first that the contacts will stay switched as long as the person s hand remains on the plate Timing starts when the hand is removed and if the plate is touched a second time during the switched cycle the contacts will remain switched for the selected time which will be retriggered If the SP 1 is being used to trigger some other device such that only a momentary signal is required turn the pot all the way counterclockwise and the contacts will switch for roughly one second 5 LABELING A vinyl press on label is supplied with the unit which says TOUCH TO EXIT and includes a graphic representation of a hand An international handicap symbol is also available ordered separately SP 1LH The label may be applied to the stainless steel plate completely or portions may be applied only to create the desired prompt To use the label first slowly remove the backing sheet by starting peeling from one corner Too rapid removal of the backing may take some of the label with it When the backing has been removed you can edit the label copy by carefully rem
5. ll the way counterclockwise Reapply power and adjust sensitivity as described in Section 7 9 MAGNACARE LI FETI ME REPLACEMENT WARRANTY For warranty information visit www securitron com en site securitron About MagnaCare Warranty PN 500 15600 Page 4 Rev D 03 11
6. not set too high Review section 7 If you can rotate the pot counterclockwise all the way and the unit still remains activated the most likely cause is that the sensor sees an overwhelmingly large signal as if someone was continually touching the plate This will happen if the plate is not properly isolated from a mass of metal The plastic backbox achieves this isolation but it is possible that metal is too close to the side of the plate You must have one inch clearance all around The same effect will occur if the plate is used outside and becomes wet This is an indoor product only Certain large electronic noise sources can swamp the sensor although this is rare Examples would include large radio or radar transmitters in the building or a high voltage neon sign mounted within a few feet of the unit Call the factory if you suspect noise induced problems PROBLEM The sensor is very difficult to adjust This is usually caused by coiling the electrical cable within the backbox The cable must directly exit the backbox through the provided hole Also if the backup switch has not been installed in the side of the backbox it should remain stuck down to the backbox base If its wires are laying up against the plate this can increase sensor adjustment difficulty Another possibility is that sometimes during handling of the product a static charge can be built up on the board Remove power at the source not by unplugging the cable Turn the pot a
7. oving portions of the message Use a knife tip to peel away the vinyl characters Then line up and press the label top carrier onto the plate Firmly rub all over the top carrier sheet to apply the vinyl lettering to the stainless plate and remove air bubbles Then slowly peel off the top carrier sheet again starting from a corner If while peeling some of the vinyl may come off with the top carrier rub over the carrier again aggressively to make the vinyl adhere 6 USE OF REDUNDANT BACKUP SWITCH When you open or remove the plate from the backbox you ll notice a push button switch soldered to the circuit board by two wires The switch is lightly stuck down to the backbox base As factory delivered pushing the button breaks the connection between the white COM1 and green NC1 wires just the same way as if the plate was touched It does not however affect the COM2 and NO2 circuit blue and orange If the application for the SP 1 is safety related and employs the NC contacts remove the plastic plug and mount the switch through the hole in the bottom of the backbox as shown in the drawing on the right With the switch mounted there are two independent controls which can release the door In the event that the sensor fails the button will still work Of course in a double break installation See Figure 3 the button will not activate the REX input of the entry control device because its use only affects the NC contacts nor will it activate the
8. sECURITRON Securitron Magnalock Corp www securitron com ASSA ABLOY the global leader Tel 800 624 5625 techsupport securitron com in door opening solutions t ASSA ABLOY MODEL SP 1 TOUCH SENSITIVE WALL SWITCH INSTALLATION AND OPERATING INSTRUCTIONS 1 DESCRIPTION The SP 1 is a touch sensitive wall switch which is generally used as a superior alternative to wall mounted mechanical push buttons When touched by the human hand even through gloves the unit operates a set of internal dry contacts The unit includes an internal timer an LED which indicates operation and a redundant backup switch The SP 1 is intended for indoor use only FIGURE 1 SP 1 OVERVIEW CONNECTION WIRE FROM SENSOR TO PLATE POT TO ADJUST TOUCH SENSITIVITY POT TO SET TIME CONNECTOR DELAY 1 35 SEC 2 PHYSICAL MOUNTING Identify the top of the unit by noting that the LED is on the top face of the backbox Remove the bottom screw of the plate Note that the top screw includes a spring that goes around the screw below the plate Do not lose this spring as its presence is necessary for proper operation It is not necessary to remove the top screw with the spring on it but to just loosen this screw and rotate the plate enough to access the mounting screw points Mount the unit to the wall using the supplied screws Note that there are two approaches to mounting You can use the holes at the diagonal corners of the box and optionally one of the interior holes for
9. t that they will be used You may want to increase the sensitivity somewhat but if you leave it just below the point where the LED is on all the time you risk a condition where the unit will fail by being on all of the time 8 TROUBLESHOOTI NG PROBLEM The unit will not operate when the plate is touched There are three ways to know that the SP 1 is working when you touch the plate The LED should come on you should be able to hear the relay click and the device should do what is supposed to in the installation such as releasing a door If you get the click and LED but the unit doesn t release the door check the installer wiring If you don t get a click or LED the sensor is not reading your touch Make sure you understand section 7 on how to adjust sensitivity It may be set too low Another fault could be that the sensor itself is not receiving 12 24 DC power on the red and black wires Check the power supply and be sure the input polarity is correct Also even if power is being applied on the red and black wires it s possible that it s not getting into the sensor Check the connector block that plugs into the sensor circuit board for loose wires Finally it is possible that the connection from the sensor to the plate has come loose Review Figure 1 The ring terminal must go around the top mounting screw and the spring must be present around the screw PROBLEM The LED remains on constantly First make sure that the sensitivity is
10. which will greatly shorten the life of the relay contacts if not suppressed To work properly it should be spliced in as close to the electric lock as possible It has no polarity If however Securitron s Magnalock is used in the installation the MOV is not necessary as the Magnalock is internally suppressed The sensor operates on 12 24 volts DC and is normally powered by the same power supply that operates the electric lock When wiring power polarity must be observed Note that the sensor draws 40 mA when at rest and 25 mA when it is releasing the lock As an additional safety feature the SP 1 includes a low voltage sensing circuit The unit will keep working normally if input voltage declines until it reaches roughly 9 volts At that point the SP 1 will automatically act as if all power was removed If a lock is being controlled it will release Input voltage could decline if the unit was being operated on batteries and the batteries were discharging or because of a fault in the power supply When employing the cable to make electrical connections never coil the gray cable within the white backbox It must be pulled straight out A coiled cable in the white backbox will interfere with proper electronic operation of the unit FIGURE 2 SP 1 TYPICAL WIRING WIRING FOR FAIL SAFE LOCK POWER SUPPLY 12 24 VDC RED POWER BLACK POWER WHITE RELAY COM1 LOCK POWER SUPPLY 12 24 VDC BLACK POWE
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