Delta SG1420 User manual

Copyright 2001 Delta Scientific Corporation Page 1 of 18
All Rights Reserved Document: A2026.3 SG1420 Instructions
INSTRUCTION MANUAL MODEL SG1420 SECURITY GATE
DOCUMENT A2026.3 SG1420 INSTRUCTIONS
 2011 DELTA SCIENTIFIC CORPORATION
CORPORATE HEADQUARTERS
40355 Delta Lane
Palmdale, California 93551
Phone: [phone]
Fax: (661) 575
-
1109
EASTERN REGION U.S.A.
125 Wyatt Lane
Fredericksburg, VA 22406
Phone: [phone]
Fax: (703) 541
-
9117

Copyright 2001 Delta Scientific Corporation Page 2 of 18
All Rights Reserved Document: A2026.3 SG1420 Instructions
D E L T A
www.deltascientific.com
WARRANTY AND LIMITATION OF LIABILITY
Delta Scientific Corporation warrants that during the first ninety (90) days after delivery, the
Products will be free from defect in material and workmanship. Delta's sole obligation under this
warranty shall be to repair (or at Delta's option, to replace), FOB: Palmdale, California, any
defective product, without charge to Buyer, provided that, (a) Buyer gives Delta written notice of
any such claimed defect within such period of ninety (90) days, (b) the Products, if installed, were
installed by a Delta authorized installer, (c) the Products have not been altered, subjected to
misuse, negligence or accident, or used with parts not authorized by Delta, and (d) the Products
have been maintained in accordance with the instructions provided. NO OTHER WARRANTY IS
EXPRESSED AND NONE SHALL BE IMPLIED, INCLUDING WITHOUT LIMITATION THE
WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR USE OR FOR A
PARTICULAR PURPOSE. THE FOREGOING STATES DELTA'S ENTIRE LIABILITY WITH
RESPECT TO THE PRODUCTS. IN NO EVENT SHALL DELTA BE LIABLE FOR ANY SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES WHICH RESULT FROM THE USE BY BUYER
OR ANY OTHER PARTY, OF THE PRODUCTS, AND IN NO EVENT SHALL DELTA'S LIABILITY
EXCEED THE AMOUNTS PAID BY BUYER FOR THE PRODUCTS HEREUNDER.
DISCLAIMER
Please note - careful consideration must be devoted to the selection, placement and design of a
Barricade installation. Just as in the case of any Barricade system, perimeter security device or
security gate that blocks a roadway or drive, care must be taken to ensure that approaching
vehicles as well as pedestrians are fully aware of the Barricades and their operation. Proper
illumination, clearly worded warning signs, auxiliary devices such as semaphore gates, stop-go
signal lights, audible warning devices, speed bumps, flashing lights, beacons, etc. should be
considered. Delta has information available on many such auxiliary safety equipment not
specifically listed herein. It is strongly recommended that an architect and/or a traffic and/or safety
engineer be consulted prior to installation of a Barricade system. Delta will offer all possible
assistance in designing the operating equipment, controls and the overall system, but we are not
qualified, nor do we purport to offer either traffic or safety engineering information.
INTELLECTUAL PROPERTY, DRAWINGS, SPECIFICATIONS AND TECHNICAL DATA
The drawings and/or data included with this equipment unless otherwise noted remain the
confidential property and trade secret of Delta Scientific Corporation. They shall not be disclosed,
reproduced or used for manufacture, design or construction without the express authorization of
Delta Scientific Corporation. The recipient by accepting these drawings and/or data, assumes
custody thereof and under the above terms agrees not to allow the use of by unauthorized
persons.

Copyright 2001 Delta Scientific Corporation Page 3 of 18
All Rights Reserved Document: A2026.3 SG1420 Instructions
Table of Contents
GENERAL NOTES: page 4
SAFETY INFORMATION page 4
INSTALLATION page 4
WIRING page 5
LIMIT SWITCH ADJUSTMENT page 5
MANUAL GATE ARM OPERATION page 6
MANUAL GATE ARM OPERATION (OPTION) page 6
DRIVE BELT TENSION page 6
MAINTENANCE page 6
TROUBLESHOOTING page 7
SPARE PARTS ORDER DATA page 8
SPARE PARTS LIST page 9
SPARE PARTS DRAWING page 10
HOOK-UP SCHEMATICS
2 lane, single direction, cash in or out page 11
2 lane, cash entry, free exit page 12
1 lane, coin unit/barrier gate page 13
1 lane, free in or free out page 14
entrance & exit with revenue equip. ticket dispenser, and kiosk page 15
typical ticket dispenser/access gate page 16
card in, free out page 17
dual lane, manual push button control page 18

Copyright 2001 Delta Scientific Corporation Page 4 of 18
All Rights Reserved Document: A2026.3 SG1420 Instructions
DELTA SCIENTIFIC CORPORATION
MODEL SG1420 SECURITY GATE
General
The Delta Scientific Corporation Model SG1420 Security Gate is a heavy-duty unit designed to
meet the many needs of restricted traffic control. A large array of control modes are permitted,
including auto/manual operation in conjunction with local or remote pushbutton stations, timers,
radio controls, vehicle loop detectors, infra red detectors, ticket spitters, card readers, coin or
token devices, and computerized electronic tag systems. These devices may be used
independently or in combination. In short, any device which can provide a contact closure may
be used to vend or reset the Gate.
Safety
The Model SG1420Security Gate is equipped with an electric motor driving the gate arm
through a vee-belt/gear box system. Keep hands and fingers away from the unit interior when
power is on. Shut power off before adjusting limit switches or belt tension. Wiring to the terminal
strip should be made by a competent electrician according to the NEC (NFPA 70) and
applicable local codes.
Installation
The Model SG1420 is packed in a reinforced cardboard carton with an inner poly bog to guard
against moisture. Do not stack cartons or leave out in the elements until ready to set. Gate
model number and accessories are marked on carton top.
The SG1420 is to be located on a solid, non-combustible surface, such as concrete. Mark the
Gate location from the architect’s drawings. Conduit for the Gate motor and controls must be
brought to the stub-up area within the Gate'’ bottom opening (shown above). Foundation bolt
location can be marked from the Gate itself or from a template (Delta P/N D03180)
1) Use a masonry drill to provide the holes for the mounting bolts (4 – 3/8” X 4” long). If
appropriate for your application use lag shields (not provided).
2) Relocate the Gate and install the lag bolts using a flat and lock washer on each.
3) Locate gear box breather vent and remove plug. Vent hole faces upwards when the box
is in operation.
4) Install Gate Arm.

Copyright 2001 Delta Scientific Corporation Page 5 of 18
All Rights Reserved Document: A2026.3 SG1420 Instructions
Wiring
As indicated above, the Gate will function using a wide variety of control inputs. Consult the
architectural plans for the required control functions, then refer to the specific Delta Scientific
Application Guide that covers that function. Common to all hookups:
1) Standard Power input is 120/1/60 VAC for Gate Motor and control power. The SG1420
may be ordered from the factory equipped to operate at 240/1/50 also. Conduit should
be run from below grade to the center stub-up area as shown in the installation drawing.
Field wiring connections are terminated at terminals L1 (hot) and L2 (neutral). Other
input voltages are available, and must be selected at time of order. The unit should be
grounded at the provided terminal (green).
2) Switch function:
a) Gate Auto-Manual: With the Power ‘On’, switching the Auto-Manual switch to
‘Manual’ will vend (raise) the Gate. To reset the Gate, switch Auto-Manual to
‘Reset’ position momentarily.
b) Heater On-Off –Auto: Gate may be optionally supplied with a 60 watt heater to
guard against condensation on the gate interior surfaces and to provide some
heating to reduce gear box lube oil viscosity in extreme cold. We suggest that the
heater switch be placed in the ‘Auto’ position at all times.
Limit Switch Adjustment
The Limit Switches are preset at the factory for standard operation across a level lane. The limit
switches are adjustable to allow gate arm travel adjustments, where necessary.
CAUTION: Do NOT attempt to adjust the limit switches with the power on. Power
switch must be placed in the ‘Off’ Position before adjustments are made. The
directions indicated below are made when viewing the Gate from the gate arm
side, Gate raise direction is clockwise (CW), Gate lower direction is counter-
clockwise (CCW).
1) To adjust the gate arm for more downward travel, loosen the thumbscrew on the down
limit switch cam and rotate slightly CW. Tighten screw, turn Power switch ‘On’ and check
by operating the Auto-Manual switch. Turn Gate ‘Off’ and re-adjust as necessary.
2) To adjust the gate arm for less downward travel, loosen the thumbscrew on the down
limit switch cam and rotate slightly CCW. Confirm as above.
3) To adjust the gate arm for more upward travel, loosen the thumbscrew on the up limit
switch cam and rotate slightly CCW, Confirm as above.
4) To adjust the gate arm for less upward travel, loosen the thumbscrew on the up limit
switch cam and rotate slightly CW. Confirm as above.

Copyright 2001 Delta Scientific Corporation Page 6 of 18
All Rights Reserved Document: A2026.3 SG1420 Instructions
Manual Gate Arm Operation (Standard Feature)
NOTE: DO NOT MANUALLY OPERATE GATE UNLESS POWER HAS FIRST
BEEN TURNED OFF! THERE IS POTENTIAL FOR SEVER INJUTY IF POWER
IS RESTORED WHILE MANUALLY OPERATING GATE.
All SG1420 Gates have the capability to be manually raised or lowered. The normal method to
manually raise or lower the gate arm’s position is to:
1) Unlock the access cover.
2) Set the ‘POWER’ Toggle Switch to ‘OFF’.
3) Move the drive belt around by hand, thereby moving the gate arm either up or down as
desired. Use care! Having the hand caught between the pulley and belt is painful!
Manual Gate Arm Operation (Optional)
The SG1420 can be ordered with a manual crank to perform manual operation. The Gate’s top
cover is fitted with a plastic plug, which when removed will allow the crank assembly to be used
to rotate the special sheave on the motor shaft.
Drive Belt Tension
The drive belt requires periodic tension checking. Improper tension of the drive belt can result in
erratic gate arm motion. See Troubleshooting Section.
Maintenance
Good maintenance is essential to the long life of your Delta SG1420 Security Gate. Long,
trouble free operation is obtained by adhering to the following suggestions:
1) Check belt tension every 60 days to control Gate over travel. Consistent tension will
allow the gate to stop in the same position every time.
2) Adjust limit switches (See section above) for proper gate arm travel if extremes in
temperature are encountered. In cold weather, gear box lubrication will stop arm travel in
a shorter time. Lengthening the travel may be necessary. Conversely, in summer, hot
temperatures may cause the gate arm to over travel the desired position. Shortening the
travel can compensate.
CAUTION: Do NOT attempt to adjust the limit switches with the power
on. Power switch must be placed in the ‘Off’ position before adjustments
are made.
3) Service the gear box annually by draining old oil and refilling with clean Texaco
Vanguard oil or equivalent.
4) Tighten all nuts, bolts, and screws on the Gate assembly every 60 days or as necessary.
5) Wash and wax the Gate cabinet exterior, once a quarter, or as necessary to maintain the
bright gloss finish of your Delta Gate.

Copyright 2001 Delta Scientific Corporation Page 7 of 18
All Rights Reserved Document: A2026.3 SG1420 Instructions
Troubleshooting
If Gate fails to move:
1) Check Gate ‘Power’ switch. Switch must be in the ‘On’ position.
2) Check thermal overload on motor. If overload is tripped, reset by pushing trip button. If
motor is hot, let it cool before trying to reset.
CAUTION: Power switch should be in the ‘Off’ position when resetting the
thermal trip to prevent hands from being caught in the drive belt pulleys if
motor should happen to start on reset.
3) Check circuit breaker/disconnect switch feeding the Gate. Reset as necessary.
4) If there is power to the Gate (120/1/60 at terminal 1 and terminal 2):
a) Try switching the ‘Auto-Manual’ switch to ‘Manual’. The gate arm should go up. If
not, turn Power switch ‘Off’ and disconnect Gate at the Main. Check all electrical
connections (terminals and screws) for tightness. If Gate still will not function
when power is restored, call factory for assistance.
i) If Gate functions on ‘Manual’ but does not respond to vend or reset
signals; check control devices and detectors. When possible, exchange
known good components for suspected ones.
ii) If control devices and detectors are proved OK, the field wiring or
harnesses are to be suspected. Call factory for help.
b) If Gate runs but cycles up and down without stopping:
i) Check limit switch adjustment per the above instructions.
ii) If the limit switches are in their proper location, at least one switch is likely
failed. If the Gate runs on with the Auto-Manual switch in the ‘Manual’
position the UP limit switch has failed. If the Gate runs on in the ‘Auto’
position the DOWN limit switch is failed.
If gate moves erratically:
Erratic gate motion requires the drive belt tension to be checked. Open the SG1420’S’s door
and inspect the drive belt for looseness or excessive wear. If the belt appears worn or frayed, or
if the belt appears loose, first: remove Electrical Power to the gate and second, tighten or
replace the belt with a new one. To remove or tighten the belt, first loosen the Electrical Motor
mounting nuts slightly and pull the motor away from the Gear Reducer, then tighten the
Electrical, motor mounting nuts, thus tightening the drive belt.

Copyright 2001 Delta Scientific Corporation Page 8 of 18
All Rights Reserved Document: A2026.3 SG1420 Instructions
Power Loss
The Delta SG1420 can be opened or closed in the event of a power outage by the following:
CAUTION: Power switch should be in the ‘Off’ position when manually operating
the gate to prevent hands from being caught in the drive belt pulleys if motor should
happen to start if power is restored.
1) Manually pull the drive belt around until the gate is in the desired position. Use Care!
Drive belt-pulley is a pinch point!
2) Turn Auto-Manual switch to ‘Auto’ and the Power switch to ‘On’. On power resumption,
the Gate will automatically resume powered operation.
Spare Parts Order Data
Parts for your Delta SG1420 Gate may be purchased from your installer/dealer or the factory.
Please call your dealer first, as he is most familiar with your application. Required replacement
parts can be located from the attached Spare Parts List.
Try to supply as much data about the part as possible, i.e. dimensional size, threads, voltage,
nameplate data, etc. For control circuits: list model number, serial number (S/N), drawing no.
and customer no. taken from the nameplate on the controller.

Copyright 2001 Delta Scientific Corporation Page 9 of 18
All Rights Reserved Document: A2026.3 SG1420 Instructions
Spare Parts List for SG1420 Security Gate (120/1/60 VOLT)
ITEM
QTY
OPTIONS/DESCRIPTION
DELTA
PART #
01 1 CABINET (OPTIONS)
01A CABINET, ALUMINUM, LESS DOOR 4369-01A
01B CABINET, STEEL, LESS DOOR 4369-01S
02 1 DOOR (OPTIONS)
02A DOOR, ALUMINUM 4369-02A
02B DOOR, STEEL 4369-02S
03 1 LOCK, T-HANDLE, CHICAGO BLANK #4260-6T W/ 6-1088Z KEY 4369-03
MECHANICAL ASSEMBLY
04 1 GEAR REDUCER WINSMITH MODEL 917DTN-60:1-L 4369-04
05 1 MOTOR (OPTIONS)
05UK MOTOR, UK, 1/2 HP, 240V, 1 PHASE, 50/60 HZ 4369-05 UK
05US MOTOR, US, 1/2 HP, 115V, 1 PHASE, 50/60 HZ 4369-05 US
06 1 SHEAVE, FHP FOR 4L BELT, 2.00 OD, 1/2" WIDE 4369-06
07 1 SHEAVE, FHP FOR 4L BELT, 6.00 OD, 1/2" WIDE 8730-07
07A 1 SHEAVE, FHP FOR 4L BELT, 7.00 OD, 1/2" WIDE 8730-08
08 2 KEY SQUARE, 3/16" X 1-3/8" 4369-08
09 1 DRIVE BELT, ,V , 8-1/2" DIA X 1/2" WIDE (4L230) 4369-09
09A DRIVE BELT, ,V , 12-1/2" DIA X 1/2" WIDE (4L255) 8730-09A
10 1 SHAFT ASSEMBLY, MAIN ARM 4369-10
11 1 BEARING PLATE 4369-11
12 1 COLLAR, SHAFT, W/SET SCREW, 1.25 DIA 4369-12
13 1 ARM HOLDER 4369-13
14 1 ARM HOLDER RETAINING PLATE 4369-14
15 1 CONNECTINE ARM LINKAGE WITH BUSHING 4369-15
16 1 GEAR REDUCER MOUNTING PLATE 4369-16
17 1 MOTOR MOUNTING PLATE 4369-17
18 2 CAM, ACTUATIOR FOR LIMIT SWITCH 4369-18
19 2 LIMIT SWITCH, 4369-19
20 1 PIN, SPIROL 3/8 DIA X 2.00 LONG 4369-20
21 2 BOLT, SHOLDER, 5/8 X 1.75 4369-21
22 2 NUT, NYLOCK 1/2-13 UNC 4369-22
23 2 WASHER, FLAT 5/8 4369-23
24 4 BOLT, GRADE 5 HEX, 3/8-16 X 3/4" 4369-24
25 4 BOLT, GRADE 5 HEX, 3/8-16 X 1" 4369-25
26 8 NUT, 3/8-16 UNC 4369-26
27 12 WASHER, FLAT 3/8 4369-27
28 16 WASHER, SPLIT LOCK, 3/8" 4369-28
29 4 BOLT, CARRIAGE, 5/16-18 X 1" 4369-29
30 10 NUT, 5/16-18 UNC 4369-30
31 8 WASHER, FLAT 5/16 4369-31
32 8 WASHER, SPLIT LOCK, 5/16 4369-32
33 4 SCREW, ROUND HD, SLOTTED, MACHINE, 6-32 X 1.25 4369-33
34 4 NUT, 6-32 UNC 4369-34
35 8 WASHER, FLAT NO. 6 4369-35

Copyright 2001 Delta Scientific Corporation Page 10 of 18
All Rights Reserved Document: A2026.3 SG1420 Instructions