Chamberlain LiftMaster Professional SW490 Installation and operating instructions

1
CONTROLLER BOARD
GL
MODELS SW490 1/2 HP & 3/4 HP ARE FOR VEHICULAR
PASSAGE GATES ONLY AND ARE NOT INTENDED FOR
PEDESTRIAN PASSAGE GATE USE.
For use with SW490 1/2 HP & 3/4 HP Gate Operator's ONLY.
Refer to owner's manual for complete installation instructions.
ADDENDUM
Models SW490 1/2 HP & 3/4 HP

2
OPERATOR DIMENSIONS AND HORSEPOWER CHART
SW490 MOTORS
1/2 HP Motor
Maximum Gate Weight – 750 lbs. (340.2 kg)
Maximum Gate Width – 16 ft. (4.9 m)
3/4 HP Motor
Maximum Gate Weight – 900 lbs. (408.2 kg)
Maximum Gate Width – 19 ft. (5.8 m)
MOTOR PARTS
PART # DESCRIPTION
20-1050-1T Motor 115/230V TEFC 1PH, 1/2 HP
20-1075-1T Motor 115/230V TEFC 1PH, 3/4 HP
20-1075-1T Motor, 115/230V TEFC 3PH, 1/2 HP
20-3075B-4T Motor, 230/460V TEFC, 3PH, 3/4 HP
20-3050B-5T Motor, 575V TEFC, 3PH, 1/2 HP
INDIVIDUAL PARTS
10-18458 Side Plate Cover
10-2013 Mounting Bracket
73-18457 Frame Assembly
10-G0326 Switch Box Cover
23-3001 On/Off Switch, 20A
23-3005 On/Off Switch, 3PH
76-G0564 Alarm assembly
K001A5566 Control Board, GL
12-2002 Bearing 1-1/2"x1-3/4"
NOTE: All parts are specific to model of gate operator.
7.03"
(17.9 cm)
30.24"
(76.8 cm)
7.12"
(18.1 cm)
26.24"
(66.7 cm)
18.5"
(47 cm) 17.63"
(44.8 cm)
13.75"
(35 cm)
22"
(55.9 cm)
REPAIR PARTS - SW490 1/2 HP & 3/4 HP

3
SERVICE KITS
PART # DESCRIPTION
K75-18366 Arm Assembly Kit
08-2001 Rod End Fitting
10-2011 Gate Bracket
70-18618 Extension Arm
10-3900 Galvanized Tube 39", 1" IDx1.315"
12-10172 Sleeve Bearing
07-2103 Arm Stop
06-2025-T Actuator Arm Assembly
K75-18367 Drive Assembly Kit (Motor Not Included)
10-2008 Switch Bracket
10-G0539 Sensor Bracket
*Output Shaft
12-2125 Flange Ball Bearing 1-1/4" Bore
G152002 Sprocket 50B60 1-1/2x3/8 2-1/4" LTB
15-50B12LGH Sprocket 50B12 1"x1/4" 2SS 5/16"
16-4L280 Belt 28"
SW008 Pulley, 2", bore 5/8", key 3/16"
G172701 Pulley 7"
19-2075 Chain, #50-75
19-9024 Master Link #50
G232016 Limit Switch
32-2001 Gear Reducer
75-G0400 Single Swing Collar
75-G0401 Double Swing Collar
K74-18382 Hall Effect Sensor Assembly
80-207-19 Key 1/4x1/4x1-1/2"
80-207-23 Key 3/16x1-3/8"
80-207-25 Key 3/8x3/8x2-1/4"
03-8024-K Mini Contactor 24V
24-115-1 Relay 115 Vac
24-230-5 Relay 208/230V
21-3260-1 Transformer, 60V
VARIABLE PARTS
OVERLOAD
25-2006 6 Amp Overload Fuse
25-2010 10 Amp Overload Fuse
25-2015 15 Amp Overload Fuse
25-4002-5 2.5 Amp Overload Fuse
25-4006 4.0-6.0 Amp Overload Fuse
To order a complete replacement electrical box kit, contact technical support at 1-800-528-2806.
*Non stocked item. Please allow additional delivery time.
REPAIR PARTS - SW490 1/2 HP & 3/4 HP (CONTINUED)
NOTE: All parts are specific to model of gate operator.

4
DRAWING NUMBER:
01-G1979-1
DATE:
7/29/03
REVISION:
E
ECN:
03-0401
NOTES:
1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE
VOLTAGE 24V SECONDARY 60VA.
2) RELAY VOLTAGE SAME AS LINE VOLTAGE.
3) OPTIONAL WIRE HARNESS.
4) (B+) AND (B-) ARE 100dB SAFETY ALARMS.
5) WIRE COLOR: 120V BLACK, 208V RED, 230V ORANGE.
24V
Sec.
R
R
1
1
R
R
2
2
R
R
3
3
R
R
4
4
J4
1
2
24 Vac - IN (GY)
(Y)
(W)
(GN)
(GN)
(BL) (BK)
(Y)
(Y)
(Y)
24 Vac -COMMON
GL CONTROL BOARD
GROUND
1 PHASE
POWER IN
(W)
115 VOLT
MOTOR
CONNECTION
230 VOLT
MOTOR
CONNECTION
SEE NOTE 5
115 ONLY
SEE NOTE 5
SEE NOTE 2
SEE NOTE 1
PRIMARY
230V ONLY
J2 PLUG
J2 PLUG
+24 Vdc
SOFT OPEN
“B” LIMIT
“A” LIMIT
CONTACTOR B
CONTACTOR A
RPM SENSOR
RPM - IN
RPM GND
RPM - SUPPLY
RADIO COMMAND
SHADOW
CLOSE
STOP
SOFT OPEN
HARD OPEN
INT. LOOP
OBS. OPEN
OBS. CLOSE
DC - GND
LOCK 1
LOCK 2
ALARM 1
ALARM 1 ALARM ASSY
76-G0564 24 Vac RADIO
SIGNAL
DUAL GATE
B+
NC
24 Vac - COMMON
B-
LEGEND
TERMINAL BLOCK
J1 TERMINAL BLOCK
PERMANENT TERMINAL
ALARM ASSY
76-G0564
SEE NOTE 4
R2
R1
R3
R4
APPLICATIONS:
CONTROL WIRING TYPE - GL
FIELD WIRING & ADJUSTMENTS
MODEL TYPES: SW490 (HSW)
HORSEPOWER: 1/2, 3/4 & 1
VOLTAGE/PHASE: 115V, 208 & 230V - 1 PHASE ONLY
845 Larch Avenue, Elmhurst, IL 60125
SINGLE PHASE WIRING DIAGRAM (SW490)

5
DRAWING NUMBER:
01-G1979-3
DATE:
7/29/03
REVISION:
E
ECN:
03-0401
NOTES:
1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE
VOLTAGE 24V SECONDARY 60VA.
2) WIRE COLOR: 208V RED, 230V ORANGE, 460V VIOLET, 575V GRAY
3) OPTIONAL WIRE HARNESS (SEE DRAWING 90-G0532).
4) OVERLOAD PROTECTION EITHER IN MOTOR OR FROM AN EXTERNAL
OVERLOAD.
5) (B+) AND (B-) ARE 100dB SAFETY ALARMS.
APPLICATIONS:
CONTROL WIRING TYPE - GL
FIELD WIRING & ADJUSTMENTS
MODEL TYPES: SW490 (HSW)
HORSEPOWER: 1/2, 3/4 & 1
VOLTAGE/PHASE: 208,230,460 & 575V - 3 PHASE ONLY
845 Larch Avenue, Elmhurst, IL 60125
' '' '
Note 1
24V
Sec.
R
R
2
2
R
R
4
4
R
R
3
3
R
R
1
1
R
R
2
2
R
R
3
3
R
R
4
4
J4
1
2
24 Vac - IN
24 Vac -COMMON
+24 Vdc
SOFT OPEN
“B” LIMIT
“A” LIMIT
CONTACTOR B
CONTACTOR A
RPM - IN
RPM GND
RPM - SUPPLY
RADIO COMMAND
SHADOW
CLOSE
STOP
SOFT OPEN
HARD OPEN
INT. LOOP
OBS. OPEN
NC
OBS. CLOSE
DC - GND
LOCK 1
LOCK 2
ALARM 1
ALARM 1
24 Vac - COMMON
GL CONTROL BOARD ALARM ASSY
76-G0564
ALARM ASSY
76-G0564
208/230V MOTOR
O/L
NOTE 4
ON/OFF
SWITCH
460V MOTOR
575V MOTOR
J2 PLUG
J2 PLUG
LEGEND
(OPTIONAL)
TERMINAL BLOCK
J1 TERMINAL BLOCK
PERMANENT TERMINAL
RPM SENSOR
SEE NOTE 5
SEE NOTE 4
SEE NOTE 2
3 PHASE
POWER IN
DUAL GATE
24 Vac RADIO
SIGNAL
B+
B-
THREE PHASE WIRING DIAGRAM (SW490)

6
LIFTMASTER®TWO YEAR LIMITED WARRANTY
The Chamberlain Group, Inc. warrants to the final purchaser of this product, for the structure in which this product is originally
installed, that it is free from defect in materials and/or workmanship for a period of two years from the date of purchase. The proper
operation of this product is dependent on your compliance with the instructions regarding installation, operation, maintenance and
testing. Failure to comply strictly with those instructions will void this limited warranty in its entirety.
If, during the limited warranty period, this product appears to contain a defect covered by this limited warranty, call 1-800-528-2806,
toll free, before dismantling this product. Then send this product, pre-paid and insured, to our service center for warranty repair. You
will be advised of shipping instructions when you call. Please include a brief description of the problem and a dated proof-of-purchase
receipt with any product returned for warranty repair. Products returned to Seller for warranty repair, which upon receipt by Seller are
confirmed to be defective and covered by this limited warranty, will be repaired or replaced (at Seller’s sole option) at no cost to you
and returned pre-paid. Defective parts will be repaired or replaced with new or factory-rebuilt parts at Seller’s sole option.
ALL IMPLIED WARRANTIES FOR THE PRODUCT, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE TWO YEAR LIMITED
WARRANTY PERIOD SET FORTH ABOVE, AND NO IMPLIED WARRANTIES WILL EXIST OR APPLY AFTER SUCH PERIOD. Some
States do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. THIS LIMITED
WARRANTY DOES NOT COVER NON-DEFECT DAMAGE, DAMAGE CAUSED BY IMPROPER INSTALLATION, OPERATION OR CARE
(INCLUDING, BUT NOT LIMITED TO ABUSE, MISUSE, FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE,
UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT), LABOR CHARGES FOR REINSTALLING A REPAIRED OR
REPLACED UNIT, OR REPLACEMENT OF BATTERIES.
THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS WITH, OR RELATING TO, THE GATE OR GATE HARDWARE,
INCLUDING BUT NOT LIMITED TO THE GATE ALIGNMENT OR HINGES. THIS LIMITED WARRANTY ALSO DOES NOT COVER ANY
PROBLEMS CAUSED BY INTERFERENCE. ANY SERVICE CALL THAT DETERMINES THE PROBLEM HAS BEEN CAUSED BY ANY OF
THESE ITEMS COULD RESULT IN A FEE TO YOU.
UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES ARISING IN
CONNECTION WITH USE, OR INABILITY TO USE, THIS PRODUCT. IN NO EVENT SHALL SELLER’S LIABILITY FOR BREACH OF
WARRANTY, BREACH OF CONTRACT, NEGLIGENCE OR STRICT LIABILITY EXCEED THE COST OF THE PRODUCT COVERED HEREBY.
NO PERSON IS AUTHORIZED TO ASSUME FOR US ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OF THIS PRODUCT.
Some states do not allow the exclusion or limitation of consequential, incidental or special damages, so the above limitation or
exclusion may not apply to you. This limited warranty gives you specific legal rights, and you may also have other rights which vary
from state to state.
WARRANTY POLICY AND SERVICE
HOW TO ORDER REPAIR PARTS
OUR LARGE SERVICE ORGANIZATION
SPANS AMERICA
FOR INSTALLATION AND SERVICE INFORMATION,
CALL OUR TOLL FREE NUMBER
1-800-528-2806
www.liftmaster.com
WHEN ORDERING REPAIR PARTS
PLEASE SUPPLY THE FOLLOWING INFORMATION:
PART NUMBER DESCRIPTION MODEL NUMBER
ADDRESS ORDER TO:
THE CHAMBERLAIN GROUP, INC.
Technical Support Group
6050 S. Country Club Road
Tucson, AZ 85706
© 2011, The Chamberlain Group, Inc.
INTDOCSW490 All Rights Reserved