LEESON
SPEEDMASTER
DC MOTOR
ADJUSTABLE SPEED
CONTROL
INSTALLATION
AND OPERATING
INSTRUCTIONS
THIS BOOK COVERS LOW VOLTAGE CONTROL CATALOG NUMBERS
175135.00REV1 and 175136.00REV1
INSTALLATION and OPERATING INSTRUCTIONS
FOR CATALOG NUMBERS 175135.00REV1 AND 175136.00REV1
SPEEDMASTER™ ADJUSTABLE SPEED CONTROLS for
BATTERY POWERED EQUIPMENT UP TO 60 AMPS
TABLE OF CONTENTS
STANDARD FEATURES ....................................................................... 2
CONTROL DIMENSIONS ..................................................................... 2
MODEL SELECTION ............................................................................ 2
MOUNTING DIMENSIONS ................................................................... 3
INSTALLATION & HOOK-UP ............................................................... 3
STANDARD HOOK-UP DIAGRAM....................................................... 4
REVERSING HOOK-UP DIAGRAM ..................................................... 4
INHIBIT CIRCUIT .................................................................................. 4
TRIMPOT ADJUSTMENTS ................................................................... 5
IN CASE OF DIFFICULTY .................................................................... 6
SPECIFICATIONS................................................................................. 6
SCHEMATIC DIAGRAM ....................................................................... 7
DISCLAIMER ........................................................................................ 8
WARRANTY .......................................................................................... 9
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STANDARD FEATURES
• Provides smooth variable speed capability for mobile equipment.
• Maintains variable speed control as batteries discharge.
• Adjustable min speed, max speed, i.r. compensation, current limit, and accel.
• Inhibit terminal permits optional start-stop without breaking battery lines.
• Speed potentiometer, knob, and dialplate included.
• Increases range OR running time of battery operated equipment through high
efficiency.
• Automatic current limit foldback decreases current limit to 50% of setpoint when
heatsink temperatures reach 80° C. - provides protection from overheating.
DIMENSIONS
MODEL WIDTH LENGTH DEPTH WEIGHT
INCHES (CENTIMETERS) OZ. (g.)
175135 6.7 (17.1) 9.0 (22.9) 2.27 (5.77) 34.0 (962)
175136 6.7 (17.1) 9.0 (22.9) 2.27 (5.77) 34.0 (963)
MODEL SELECTION
CONTINUOUS CURRENT MODEL NUMBER
(12VDC INPUT ± 15%) (0 - 12VDC OUTPUT)
60
(24/36VDC INPUT ± 15%) (0 - 24/36VDC OUTPUT)
60
WARNING:
MAKE CERTAIN THAT THE POWER SUPPLY IS DISCONNECTED BEFORE ATTEMPTING TO SERVICE
OR REMOVE ANY COMPONENTS!!! IF THE POWER DISCONNECT POINT IS OUT OF SIGHT, LOCK IT
IN DISCONNECTED POSITION AND TAG TO PREVENT UNEXPECTED APPLICATION OF POWER.
175135
175136
ONLY A QUALIFIED ELECTRICIAN OR SERVICEMAN SHOULD PERFORM ANY ELECTRICAL
TROUBLESHOOTING OR MAINTENANCE.
AT NO TIME SHOULD CIRCUIT CONTINUITY BE CHECKED BY SHORTING TERMINALS WITH A
SCREWDRIVER OR OTHER METAL DEVICE.
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175135.00REV1 / 175136.00REV1 MOUNTING
9.00”
2.27”
2.00”
6.30”
6.70”
7.50”
7/32” DIA.
(4 SLOTS)
When mounting the control, allow clearance above
NOTE:
components to prevent shorting
.75”
CAUTION: DO NOT MOUNT CONTROLLER WHERE AMBIENT TEMPERATURE IS
OUTSIDE THE RANGE OF -10° C (15° F) TO 45° C ( 115° F).
INSTALLATION & HOOK-UP
Before attempting to wire the control, make sure all power is disconnected. Recheck code
designation to assure proper voltage is present for the control. Caution should be used in
selecting proper size of hook-up wire for current and voltage drop. Note: The battery and
armature wire size on 175135.00REV1 and 175136.00REV1 models must be a minimum of 12
gauge.
Warning:
Do not reverse positive or negative battery leads, this will damage the control. To
change motor direction, interchange the positive and negative Armature leads.
Refer to the following wiring diagrams for proper location when connecting DC Voltage,
Armature, and Speedpot wires to the control.
CAUTION !! TURN POWER OFF WHILE MAKING CONNECTIONS.
To properly adjust the CURRENT LIMIT setting, a DC ammeter should be placed in series with
the armature line. This meter can be removed after the control is adjusted.
Warning:
Improper installation or operation of this control may cause injury to
personnel or control failure. The control must be installed and grounded
in accordance with local, state, and national safety codes.
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