1740008.00
Instruction Guide
Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115/240 VAC ± 10%
single phase, 50/60 Hz
Horsepower Range @ 115 VAC . . . . . . . . . . . . . . . . . . . . . .1/20 - 1/8 HP
Horsepower Range @ 240 VAC . . . . . . . . . . . . . . . . . . . . . .1/10 - 1/4 HP
Armature Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 - 240 VDC
Maximum Armature Current (continuous) . . . . . . . . . . . . . . . . . . . . .3 ADC
Acceleration Time (no load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 second
Deceleration Time (no load) . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 second
Speed Regulation (% of base speed) . . . . . . . . . . . . . . . . . . . . . . . . . .1%
Line Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5A, fast-acting
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.68 lb
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . .5.50 in. x 3.50 in. x 3.20 in.
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . .10°C - 40°C
SPECIFICATIONS
LIMITED WARRANTY
A. Warranty - LEESON Electric warrants that its products will be free from defects in
material and workmanship for a period of one (1) year from the date of shipment thereof.
Within the warranty period, LEESON will repair or replace such products that are returned
to LEESON or to the nearest Branch Office, with shipping charges prepaid. At our option,
all return shipments are F .O.B. LEESON or it s Branch Of fice. This warranty shall not apply
to any product that has been subject to misuse, negligence, or accident; or misapplied; or
repaired by unauthorized persons; or improperly installed. LEESON is not responsible for
removal, installation, or any other incidental expenses incurred in shipping the product to
or from the repair point.
B. Disclaimer - The provisions of Paragraph Aare LEESON’s sole obligation and exclude
all other warranties of MERCHANTABILITY or use, express or implied. LEESON further
disclaims any responsibility whatsoever to the customer or any other persons for injury to
person or damage or loss of property of value caused by any product that has been
subject to misuse, negligence, or accident, or misapplied or modified by unauthorized
persons or improperly installed.
C. Limitations of Liability - In the event of any claim or breach of any of LEESON’s
obligations, whether expressed or implied, and particularly of any claim of a breach of
warranty claimed in Paragraph A, or of any other warranties, express, or implied, or claim
of liability that might, despite Paragraph B, be decided against us by any lawful authority,
LEESON shall under no circumstances be liable for any consequential damages, losses,
or expense arising in connection with the use of, or inability to use, LEESON’s product for
any purpose whatsoever. An adjustment made to the warranty does not void the warranty,
nor does it imply an extension of the original one (1) year warranty period. Product
serviced and/or parts replaced by a no-charge basis during the warranty period carry the
unexpired portion of the original warranty only.
If for any reason any of the forgoing provisions shall be ineffective, LEESON’s liability for
damages arising out of its manufacture or sale if equipment, or use thereof, whether such
liability is based on warranty, contract, negligence, strict liability in tort, or otherwise, shall
not in any event exceed the full purchase of such equipment.
Any action against LEESON based upon any liability or obligation arising hereunder or
under any law applicable to the sale of equipment or the use thereof must be commenced
within one year after the cause of such action arises.
1
Safety Warnings
This symbol denotes an important safety message.
Please read these sections carefully before performing any
of the instructions contained in this manual.
• Have a qualified electrical maintenance technician install, adjust
and service this equipment. Follow the National Electrical Code
and all other applicable electrical and safety codes, including the
provisions of the Occupational Safety and Health Act (OSHA),
when installing equipment.
• Reduce the chance of an electrical fire, shock, or explosion by
proper grounding, over-current protection, thermal protection and
enclosure. Follow sound maintenance procedures.
• It is possible for a drive to run at full speed as a result of a
component failure. In order to stop the drive in an emergency,
please ensure that a master switch has been installed in the AC
line.
• This drive is not isolated from earth ground. Circuit potentials
are at 115 to 240 VAC above earth ground. Avoid direct contact
with the printed circuit board or with circuit elements to prevent
the risk of serious injury or fatality . Use a non-metallic screwdriver
for adjusting the calibration trimpots.
2
Dimensions
Figure 1. Case Layout
POWER ON
5.50 [140]
3.20 [81]
0.88 [22]
2.28 [58]
2.50 [64]
PUSH ON PUSH OFF
3.42 [87]
3.51 [89]
1.82 [46]
ALL DIMENSIONS IN
INCHES [MILLIMETERS]
1.06 [27]
3
Mount the drives vertically or horizontally using the two mounting
keyholes on the back of the case (see Figure 2 on page 4). The
keyholes are 2.5 inches apart. For access to the keyholes from the
inside of the case, remove the six case cover screws, lift the case
cover straight out, and remove the fishpaper from inside the back
cover. Leave the case cover removed to wire the AC line and motor
to the drive.
NOTE: After mounting, return the fishpaper to the inside back
cover, as it provides necessary electrical isolation.
Mounting
4
Figure 2. Case Layout
5
Wiring
Operation
The drive has three conduit holes on the bottom of the case and one
conduit hole on the back of the case (Figure 2). Connect external
wiring through any of these conduit holes. Avoid using the same
conduit hole for the AC power wires and the motor wires.
See Figure 3 (page 6) for ACline and motor connections. Be sure
that all connections are made before operating the drive. Use
insulated spade lugs when making connections.
1. To apply power, turn the speed adjust knob CW until the switch
makes an audible “click”. The POWER ON LED lights when
power is applied.
2. Rotate the speed adjust potentiometer knob clockwise until the
desired speed is reached.
3. T o remove power , rot ate the speed adjust knob full CCW until the
switch makes an audible “click”. The POWER ON LED shuts off
when power is removed.
6
Figure 3. Drive Connections
6A-ABC
FU502
115 VAC
230 VAC
L2-115 L1
6A-ABC
L2-230
FU501
A2
MOTOR
IR COMP
A1
LIMIT
CURR.
MIN
P502 P503 P505
MAX
P501
7
Minimum Speed (MIN)
The MIN trimpot (P502) sets the minimum speed. Turn the speed
adjust knob full CCW (but do not turn off) before calibrating the MIN
trimpot. Adjust the MIN trimpot until the motor rotates at the desired
minimum speed.
Calibration
Each drive is factory calibrated to its maximum horsepower rating.
Readjust the calibration trimpot setting to accomodate lower
horsepower motors.
All adjustments increase with clockwise (CW) rotation and decrease
with counterclockwise (CCW) rotation. Use a non-metallic
screwdriver for calibration. Each trimpot is identified on the printed
circuit board.
Maximum Speed (MAX)
The MAX trimpot (P501) sets the maximum speed. Turn the speed
adjust knob full CW before calibrating the MAX trimpot. Adjust the
MAX trimpot until the desired maximum motor speed is reached.
8
Regulation (IR COMP)
The IR COMP (P503) trimpot sets the voltage gain needed to
maintain the set speed of a motor under load. If the motor does not
maintain set speed as the load changes, gradually rotate the IR
COMP trimpot CW. If the motor oscillates (overcompensation), the
IR COMP trimpot may be set too high. Turn the IR COMP trimpot
CCW to stabilize the motor. See Figure 4 (page 9) for typical IR
COMP settings.
Current Limit (CURR. LIMIT)
The CURR. LIMIT trimpot (P505) sets the drive’s maximum
armature current limit. See Figure 4 for typical CURR. LIMIT
settings, or calibrate as follows:
1. With the AC line voltage disconnected from the drive, connect a
DC ammeter in series with the armature.
2. Set the CURR. LIMIT trimpot to minimum (full CCW).
3. Lock the motor armature. Be sure that the motor is firmly
mounted.
4. Connect AC line voltage to the drive.
5. Turn the power on, and set the speed adjust potentiometer to
maximum speed (full CW).
6. Adjust the CURR. LIMIT trimpot CW slowly until the armature
current is 120% of motor rated current.
7. Disconnect AC power from the drive.
8. Set the speed adjust potentiometer to minimum speed and
remove the lock from the motor shaft.
9
CURR. LIMIT IR COMP
Figure 4. Typical CURR. LIMIT & IR COMP Settings
115 VAC INPUT
1/4 HP
130 VDC
2500 RPM
1.80 ADC
CURR. LIMIT IR COMP
1/8 HP
90 VDC
1750 RPM
1.30 ADC
1/10 HP
90 VDC
1725 RPM
1.10 ADC
1/20 HP
90 VDC
1750 RPM
0.56 ADC
CURR. LIMIT IR COMP
CURR. LIMIT IR COMP
1/8 HP
130 VDC
2500 RPM
1.00 ADC
1/12 HP
130 VDC
2500 RPM
0.71 ADC
CURR. LIMIT IR COMP
CURR. LIMIT IR COMP
240 VAC INPUT
1/4 HP
180 VDC
1750 RPM
0.56 ADC
1/5 HP
180 VDC
1725 RPM
1.10 ADC
1/8 HP
180 VDC
1750 RPM
0.56 ADC
CURR. LIMIT IR COMP
CURR. LIMIT IR COMP
CURR. LIMIT IR COMP
1/2 HP
240 VDC
2500 RPM
1.80 ADC
1/4 HP
240 VDC
2500 RPM
1.00 ADC
1/6 HP
240 VDC
2500 RPM
0.71 ADC
CURR. LIMIT IR COMP
CURR. LIMIT IR COMP
CURR. LIMIT IR COMP
LEESON ELECTRIC
2100 Washington Street
Grafton, WI 53024-0241, U.S.A.
TEL: (262) 377-8810 FAX: (262) 377-9025
Document number 250–0255, Revision 1
Printed in the U.S.A – August 2003
DISCLAIMER
The information and technical data in this manual are
subject to change without notice. LEESON Electric
makes no warranty of any kind with regard to this
material, including, but not limited to, the implied
warranties of merchantability and fitness for a particular
purpose. LEESON Electric assumes no responsibility
for any errors that may appear in this manual and makes
no commitment to update or to keep current the
information in this manual.
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