Page 1
Models:
175290.00
175291.00
175292.00
Pulse-Width Modulated,
Adjustable Speed Drives
for DC Brush Motors
User’s Manual
17529X.00 Series
Page 2
The LEESON 17529X.00 Series drives are chassis drives that
accept a DC input voltage and output a DC power voltage to
control the speed of a low voltage motor. The speed may be
controlled with a potentiometer or an external voltage signal.
Standard Features:
• Provides smooth variable capability for mobile equipment.
• Maintains variable speed control as batteries discharge.
• Adjustable min speed, max speed, IR compensation, current
limit, and accel.
• Inhibit terminal permits optional start-stop without breaking
battery lines.
• Speed potentiometer included.
• Increases range OR running time of battery operated
equipment through high efficiency.
• Power LED gives a visual indication when power is applied to
the drive.
• Jumper reconnectable for low or high voltage.
Copyright 2002 by
LEESON Electric
All rights reserved. No part of this manual may be reproduced or transmitted in any
form without written permission from LEESON Electric. The information and
technical data in this manual are subject to change without notice. LEESON Electric
makes no warranty of any kind with respect to this material, including, but not limited
to, the implied warranties of its merchantability and fitness for a given purpose.
LEESON Electric assumes no responsibility for any errors that may appear in this
manual and make no commitment to update or to keep current the information in this
manual.
Printed in the United States of America.
Page 3
i
Safety Warnings
• This symbol denotes an important safety tip or warning.
Please read these instructions carefully before performing
any of the procedures contained in this manual.
• DO NOT INSTALL, REMOVE, OR REWIRE THIS EQUIPMENT
WITH POWER APPLIED. LEESON assumes the qualified
technician is intimate with the dangers involving batteries,
especially lead-acid type. This manual presupposes that you
have taken all the necessary precautions to prevent a potentially
fatal accident involving such batteries, and have followed all
standard electrical precautions.
• 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. LEESON strongly recommends the
installation of a master switch in the main power input to stop
the drive in an emergency.
This drive is isolated from 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. Use
approved personal protective equipment and insulated tools if
working on this drive with power applied.
SHOCKAVOID
OID
ON
TI
Page 4
Contents
Safety Warnings i
Specifications 1
Dimensions 2
Installation 4
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Heat sinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Fuse / Circuit breaker protection . . . . . . . . . . . . . . . . . . . . . . . . .7
Jumper 501 (JP501) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Speed adjust potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Voltage follower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Operation 15
Before applying power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Startup and shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Starting and stopping methods . . . . . . . . . . . . . . . . . . . . . . . . .17
Inhibit terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Power LED (IL501) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Calibration 21
MINIMUM SPEED (MIN SPD) . . . . . . . . . . . . . . . . . . . . . . . . .22
MAXIMUM SPEED (MAX SPD) . . . . . . . . . . . . . . . . . . . . . . . .22
ACCELERATION (ACCEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
IR COMPENSATION (IR COMP) . . . . . . . . . . . . . . . . . . . . . . .24
CURRENT LIMIT (CUR LIMIT) . . . . . . . . . . . . . . . . . . . . . . . . .25
ii
Page 5
Application Notes 27
Multiple fixed speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Adjustable speeds using potentiometers in series . . . . . . . . . . .28
Independent adjustable speeds . . . . . . . . . . . . . . . . . . . . . . . .29
RUN/JOG switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Reversing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Troubleshooting 33
Before troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Limited Warranty inside back cover
iii
Page 6
iv
Illustrations
Figure 1. 175290.00 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Figure 2. 175291.00 and 175292.00 Dimensions . . . . . . . . . . . . . . . .3
Figure 3. Heatsink mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Figure 4. Jumper 501 (JP501) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Figure 5. Speed Adjust Potentiometer . . . . . . . . . . . . . . . . . . . . . . .10
Figure 6. Speed Adjust Potentiometer Connections . . . . . . . . . . . . .10
Figure 7. Power, Fuse and Motor Armature Connections . . . . . . . . .13
Figure 8. Voltage Follower Connections . . . . . . . . . . . . . . . . . . . . . .14
Figure 9. Run/Decelerate to Minimum Speed Switch . . . . . . . . . . . .18
Figure 10. Inhibit Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Figure 11. Power LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Figure 12. Calibration Trimpot Layout . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 13. Approximate CUR LIMIT Settings . . . . . . . . . . . . . . . . . .26
Figure 14. Multiple Fixed Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Figure 15. Adjustable Fixed Speeds Using
Potentiometers in Series . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure 16. Independent Adjustable Speeds . . . . . . . . . . . . . . . . . . . .29
Figure 17. RUN/JOG Switch Connection to
Speed Adjust Potentiometer . . . . . . . . . . . . . . . . . . . . . .30
Figure 18. Reversing hookup diagram . . . . . . . . . . . . . . . . . . . . . . .32
Tables
Table 1. Wire Gauge/Length Chart . . . . . . . . . . . . . . . . . . . . . . . . . .5
Page 7
Max. Max.
Armature Armature DC Voltage
Current Voltage
3
Input Range
Model (Amps DC) (VDC) (VDC)
175290.00 16
1
12 or 24
2
10–32
175291.00 60 12 or 24
2
10–32
175292.00 60 36 or 48
2
32–50
Acceleration Time Range 0.5 – 10 seconds
Deceleration Time 0.5 seconds
Analog Input Voltage Range (signal must be isolated; S1 to S2) 0 – 10 VDC
Input Impedance (S1 to S2) 200KΩ
Speed Regulation (% of base speed) 1%
Speed Range 80:1
Form Factor 1.01
Ambient Operating Temperature Range 10°C – 40°C
Weight
175290.00 1.7 lbs.
175291.00 3.6 lbs.
175292.00 3.6 lbs.
1 At 40°C ambient. No additional heat sink is necessary.
2 Or up to 95% of available battery voltage.
3 The lower maximum armature voltage is selectable by connecting a jumper to
pins 2 and 3 of JP501 (see page 8).
1
Specifications
Page 8
Dimensions
Figure 1. 175290.00 Dimensions
2
3
4
2
50
50
50
A2
+V
NPUT
O
A1
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
ALL DIMENSIONS IN
INCHES
[MILLIMETERS]
50
50
501
50
1
113
4.44
94
.70
95
.74
1
61
.41
18
.70
1
L
1
WER
L
P
140
175
5
.19
.50
18
.70
160
6.30
8
.30
6.90
1
P
13
.50
9
.36
24
.95
56
.20
Page 9
3
R501
1
502
3
4
50
2
50
O
ACCEL
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
[
]
Figure 2. 175291.00 and 175292.00 Dimensions
ALL DIMENSIONS IN
INCHES
[MILLIMETERS]
Dimensions
160
.30
51
.99
5
.19
76
.00
R
1
1
WER
L
50
50
501
50
P
1
P
160
.30
50
.96
198
174
.78
.87
22
.88
12
.49
91
.60
162
.38
175
19
.74
4
.15
26
.01
82
.21
.90
Page 10
4
• Drive components are sensitive to electrostatic fields. Avoid
contact with the circuit board directly. Hold drive by the chassis
only.
• Protect the drive from dirt, moisture, and accidental contact.
• Provide sufficient room for access to the terminal block and
calibration trimpots.
• Mount the drive away from other heat sources. Operate the drive
within the specified ambient operating temperature range.
• Prevent loose connections by avoiding excessive vibration of the
drive.
• Mount drive with its board in either a horizontal or vertical plane.
Six 0.19 in. (5 mm) wide slots in the chassis accept #8 pan head
screws. Fasten either the large base or the narrow flange of the
chassis to the subplate.
Mounting
Warning
Do not install, rewire, or remove this control with input
power applied. Doing so may cause fire or serious injury.
Make sure you have read and understood the Safety
Warnings on page i before attempting installation.
Installation
Page 11
5
Installation
Use 18 AWG wire for speed adjust potentiometer wiring.
• Size the DC voltage input and motor wire according to the
following chart:
Table 1. Wire Gauge/Length Chart
Armature Current Wire Gauge Maximum Wire
(amps) (AWG) Length (feet)
0 – 19 14 8
20 – 32 10 10
60 8 10
Wiring
Warning
Do not install, remove, or rewire this equipment with power
applied. Failure to heed this warning may result in fire,
explosion, or serious injury.
This drive is isolated from earth ground. To prevent the
risk of injury or fatality, avoid direct contact with the printed
circuit board or with circuit elements.
Do not disconnect any of the motor leads from the drive
unless power is removed. Opening any one motor lead
may destroy the drive.
This drive is not diode-protected from reverse battery
voltage. You must assure that POS (+) is wired to +VDC
IN and NEG (–) is wired to –VDC IN.
Page 12
6
Installation
Shielding guidelines
As a general rule, LEESON recommends shielding of all
conductors.
If it is not practical to shield power conductors, LEESON
recommends shielding all logic-level leads. If shielding of logic level
leads is not practical, the user should twist all logic leads with
themselves to minimize induced noise.
It may be necessary to earth ground the shielded cable. If noise is
produced by devices other than the drive, ground the shield at the
drive end. If noise is generated by a device on the drive, ground
the shield at the end away from the drive. Do not ground both ends
of the shield.
If the drive continues to pick up noise after grounding the shield
mount the drive in a less noisy environment.
Logic wires from other input devices, such as motion controllers
and PLL velocity controllers, must be separated from power lines in
the same manner as the logic I/O on this drive.
Warning
Under no circumstances should power and logic leads be
bundled together. Induced voltage can cause unpredictable
behavior in any electronic device, including motor controls.
Page 13
7
Heat sinking
175291.00 and 175292.00 drives are pre-mounted on a heat sink.
For optimum heat transfer, mount the drive with heatsink fins
standing vertically as shown in Figure 3 below.
Fuse / Circuit breaker protection
All LEESON drives should be protected by a fuse or circuit breaker.
Use a fast acting fuse or circuit breaker rated for approximately
200% of the maximum armature current and armature voltage.
Connect the fuse or circuit breaker to the VDC+ IN side of the DC
voltage input.
Installation
Figure 3. Heatsink mounting
Heatsink Fins
Page 14
8
Installation
A1
A2
C
UT
C
UT
502
SO50
50
Q503
Q
Q504
50
Q502
TB50
503
JP50
3
S3
S2
S
SPDR CO
TACCEL
D
Figure 4. Jumper 501 (JP501)
Jumper 501
Jumper 501 (JP501)
LEESON 17529X.00 series drives are shipped with JP501 open
(no jumper applied). This allows you to use 24 VDC motors with
the 175290.00 and 175291.00, or 48 VDC motors with the
175292.00. To use lower voltage DC motors (12 VDC or 36 VDC,
respectively) jumper pins 2 and 3 with the jumper provided. See
Figure 4 for the location of JP501.
175290.00 = 16 Amp 12/24 VDC
175291.00 = 60 Amp 12/24 VDC
175292.00 = 60 Amp 36/48 VDC
501
1
1
MIN
AX SP
MP
R LIMI
IL501
1
POWER
1
R
D
INP
1
R
1
L501
R
-VD
INP
VD
1
Page 15
9
Warning
Be sure that the potentiometer tabs do not make contact with
the potentiometer enclosure. Grounding the input will cause
damage to the drive.
Mount the speed adjust potentiometer through a 0.38 in. (10 mm)
hole with the hardware provided (see Figure 5 on Page 10). Install
the circular insulating disk between the panel and the 10K ohm
speed adjust potentiometer.
Twist the speed adjust potentiometer wire to avoid picking up
unwanted electrical noise. If speed adjust potentiometer wires are
longer than 18 in. (457 mm), use shielded cable. Keep speed
adjust potentiometer wires separate from power leads (L1, L2, A1,
A2).
Speed adjust potentiometer
Installation
Page 16
10
Installation
Figure 6. Speed Adjust Potentiometer Connections
Figure 5. Speed Adjust Potentiometer
JP50
DR COMP
TACCEL
D
D
JUST
S
E
UNT THROUGH A 0.38 IN. (10 MM) HOL
W
WA
TAR
HER
NSULATING DISK
PEED AD
POTENTIOMETER
K OHM
PEE
POTENTIOMETER
W
1
1
IN SP
AX SP
1
R LIMI
Page 17
11
Power, fuse and motor connections
Connect the power input leads, an external line fuse and a motor to
the drive’s printed circuit board (PCB) as shown in Figure 7, page
13.
Motor
LEESON drives supply motor voltage from A1 and A2 terminals. It
is assumed throughout this manual that, when A1 is positive with
respect to A2, the motor will rotate clockwise (CW) while looking at
the output shaft protruding from the front of the motor. If this is
opposite of the desired rotation, simply reverse the wiring of A1
and A2.
Connections
Warning
Do not connect this equipment with power applied.
Failure to heed this directive may result in fire or serious
injury.
LEESON strongly recommends the installation of a
master power switch in the voltage input line, as shown
in Figure 7, page 13. The switch contacts should be rated
at a minimum of 200% of motor nameplate current and 150%
of the input voltage.
Installation
Page 18
12
Installation
Connect a DC motor to PCB terminals A1 and A2 as shown in
Figure 7, page 13. Ensure that the motor voltage rating is
consistent with the drive’s output voltage.
Power input
Warning
This drive is not diode-protected from reverse battery voltage.
You must assure that POS (+) is wired to +VDC IN and NEG
(–) is wired to –VDC IN.
Connect the DC power leads to terminals + VDC IN and - VDC IN,
or to a single-throw, single-pole master power switch as shown in
Figure 7, page 13 (recommended).
Fuse
Wire a power input fuse between the stop switch (if installed) and
the + VDC IN terminal on the circuit board. The fuse should be
rated at 150% of input voltage and 150 - 200% of maximum motor
nameplate current.
Page 19
13
Figure 7. Power, Fuse and Motor Armature Connections
)
)
USE
ARMATURE
502
50
50
TB50
503
A2
C
UT
C
UT
A1
Installation
1
D
R
1
WER
INP
-VD
1
1
R
INP
VD
EMERGENCY
TOP
F
TOR
L501
R
1
NEG (-
POS (+
Page 20
14
Voltage follower
Instead of using a speed adjust potentiometer, the drive may be
wired to follow an isolated (floating, or differential) 0–10 VDC signal
that is isolated from earth ground (Figure 8). Connect the signal
input (+) to S2. Connect the signal common (–) to S1. Make no
connection to S3. A potentiometer can be used to scale the analog
input voltage.
Figure 8. Voltage Follower Connections
C
)
)
SPDACCEL
Installation
IGNAL COMMON (-
1
- 10 VD
IGNAL INPUT (+
MIN
1
Page 21
15
Before applying power
• Verify that no conductive material is present on the printed circuit
board.
• Ensure that all jumpers are properly set.
Warning
Dangerous voltages exist on the drive when it is powered,
and up to 30 seconds after power is removed and the motor
stops. BE ALERT. High voltages can cause serious or fatal
injury. For your safety, use personal protective equipment
(PPE) when operating this drive.
Operation
Page 22
Startup and shutdown
To start the drive:
1. Turn the speed adjust potentiometer full counterclockwise
(CCW), or set the voltage signal to zero.
2. Apply DC voltage input.
3. Slowly advance the speed adjust potentiometer clockwise (CW),
or increase the voltage signal. The motor slowly accelerates as
the potentiometer is turned CW or the voltage signal is
increased. Continue until the desired speed is reached.
4. Remove DC voltage input from the drive to coast the motor to a
stop.
If the motor or drive does not perform as described, disconnect the
DC voltage input immediately. Refer to the Troubleshooting section
(page 33) for further assistance.
16
Operation
Page 23
17
Starting and stopping methods
Warning!
Decelerating to minimum speed or coasting to a stop is
recommended for frequent starts and stops. Do not use any of
these methods for emergency stopping. They may not stop a
drive that is malfunctioning. Removing DC line power is the
only acceptable method for emergency stopping.
For this reason, LEESON strongly recommends installing
an emergency stop switch (see figure 7, page 13).
Frequent decelerating to minimum speed produces high torque.
This may cause damage to motors, especially gearmotors that are
not properly sized for the application.
Automatic restart upon power restoration
All drives automatically run to set speed when power is applied.
Line starting and line stopping
Line starting and line stopping (applying and removing DC voltage
input) is recommended for infrequent starting and stopping of a
drive only. When DC voltage input is applied to the drive, the motor
accelerates to the speed set by the speed adjust potentiometer.
When DC voltage input is removed, the motor coasts to a stop.
Operation
Page 24
18
Operation
Figure 9. Run/Decelerate to Minimum Speed Switch
Decelerating to minimum speed
A single pole, single throw switch may be used to decelerate a
motor to minimum speed (see Figure 9). Close the switch between
S1 and S2 to decelerate the motor from set speed to minimum
speed. Open the switch to accelerate the motor from minimum
speed to set speed. The ACCEL trimpot setting determines the rate
at which the motor accelerates.
S3
S2
S1
RUN
DECEL TO
MIN SPEED
CW
10K OHM
SPEED ADJUST
POTENTIOMETER
Page 25
19
Inhibit terminals
Short the INHIBIT terminals to coast the motor to zero speed (see
Figure 10 for INHIBIT terminal location). Reopen the INHIBIT
terminals to accelerate the motor to set speed.
Twist inhibit wires and separate them from other power-carrying
wires or sources of electrical noise. Use shielded cable if the
inhibit wires are longer than 18 inches (46 cm). If shielded cable is
used, ground only one end of the shield to earth ground. Do not
ground both ends of the shield. See Shielding Guidelines, page 6.
JP50
SPDR CO
TACCEL
D
Figure 10. Inhibit Terminals
Operation
1
1
MIN
AX SP
MP
1
R LIMI
Page 26
20
Power LED (IL501)
The power LED (IL501) lights whenever DC line voltage is applied
to the drive. See Figure 11 below for the power LED location.
Figure 11. Power LED
Operation
A1
A2
C
UT
C
UT
502
SO50
50
Q503
Q
Q504
50
Q502
TB50
503
JP50
3
S3
S2
S
SPDR CO
TACCEL
D
Power LED
(IL501)
501
1
1
MIN
AX SP
MP
R LIMI
IL501
1
POWER
1
R
D
INP
1
R
1
L501
R
-VD
INP
VD
1
Page 27
21
Each drive is factory calibrated to its maximum armature voltage
and current rating. Readjust the calibration trimpot settings to
accommodate a motor with a lower armature voltage and current
rating.
All adjustments increase with clockwise rotation (CW), and
decrease with counter-clockwise rotation (CCW). Use a nonmetallic screwdriver for calibration. Each trimpot is identified on the
printed circuit board (see Figure 12).
Calibration
Figure 12. Calibration Trimpot Layout
Warning
Dangerous voltages exist on the drive when it is powered,
and up to 30 seconds after power is removed and the motor
stops. When possible, disconnect the voltage input from the
drive before adjusting the trimpots. If the trimpots must be
adjusted with power applied, use insulated tools and the
appropriate personal protection equipment. BE ALERT. High
voltages can cause serious or fatal injury.
502
DR CO
TACCEL
D
ACCELERATION
MAXIMUM
SPEED
CURRENT
LIMIT
IR
COMPENSATION
MINIMUM
SPEED
1
MIN SP
AX SP
MP
R LIMI
R
Page 28
MINIMUM SPEED (MIN SPD)
The MIN SPD setting determines the motor speed when the speed
adjust potentiometer is turned full CCW. It is factory set for zero
speed.
To calibrate MIN SPD:
1. Set the MAX SPD trimpot to full CW.
2. Set the MIN SPD trimpot to full CCW.
3. Turn the main speed adjust potentiometer to full CCW. If an
input voltage is used instead of a speed adjust potentiometer,
set the input signal to minimum.
4. Adjust the MIN SPD trimpot until the desired minimum motor
speed is reached.
MAXIMUM SPEED (MAX SPD)
The MAX SPD setting determines the motor speed when the speed
adjust potentiometer is turned full CW. It is factory set for maximum
rated speed.
To calibrate MAX SPD:
1. Set the MAX SPD trimpot full CCW.
2. Apply power to the drive and turn the speed adjust
potentiometer full CW. If an input voltage signal is used instead
of a speed adjust pot, set the input signal to maximum.
3. Adjust the MAX SPD trimpot until the desired maximum motor
speed is reached.
22
Calibration
Page 29
23
ACCELERATION (ACCEL)
The ACCEL setting determines the time the motor takes to
accelerate to a higher speed. See
Specifications
on page 1 for
approximate acceleration times. The ACCEL setting is factory set
to its minimum value (full CCW).
To calibrate ACCEL:
1. Set the ACCEL trimpot full CCW.
2. Apply power to the drive and turn the main speed adjust
potentiometer full CW. If an input voltage signal is used instead
of a speed adjust pot, set the input signal to maximum. Note
the time that the drive takes to accelerate to the desired speed.
3. Adjust the ACCEL trimpot until the desired acceleration time is
reached. Turn the ACCEL trimpot CW to increase the
acceleration time, and CCW to decrease the acceleration time.
Calibration
Page 30
IR COMPENSATION (IR COMP)
The IR COMP setting determines the degree to which motor speed
is held constant as the motor load changes. It is factory set for
optimum motor regulation.
Use the following procedure to recalibrate the IR COMP setting :
1. Set the IR COMP trimpot to minimum (full CCW).
2. Rotate the speed adjust potentiometer until the motor runs at
midspeed without load (for example, 900 RPM for an 1800 RPM
motor). A hand held tachometer may be used to measure
motor speed.
3. Load the motor armature to its full load armature current rating.
The motor should slow down.
4. While keeping the load on the motor, rotate the IR COMP
trimpot until the motor runs at the speed measured in step 2. If
the motor oscillates (overcompensation), the IR COMP trimpot
may be set too high (CW). Turn the IR COMP trimpot CCW to
stabilize the motor.
5. Unload the motor.
24
Calibration
Page 31
25
The CURRENT LIMIT setting determines the maximum armature
current output of the drive.
Recalibrate the CUR LIMIT setting when a lower current limit
is required. Refer to the CUR LIMIT settings in Figure 13, page 26,
or recalibrate using the following procedure:
1. With the power disconnected from the control, connect a DC
ammeter in series with the armature.
2. Set the CUR LIMIT trimpot to minimum (full CCW).
3. Set the speed adjust potentiometer to maximum (full CW).
4. Carefully lock the motor armature. Be sure that the motor is
firmly mounted.
5. Apply line power. The motor should be stopped.
6. Slowly adjust the CUR LIMIT trimpot CW slowly until the
armature current is 120% of motor rated armature current.
7. Set the speed adjust potentiometer, or input voltage to
minimum.
8. Remove the power from the drive and unlock the motor shaft.
9. Remove the ammeter in series with the motor armature if it is
no longer needed and re-apply power to the drive.
CURRENT LIMIT (CUR LIMIT)
Warning
CURRENT LIMIT should be set to 120% of motor nameplate
current rating. Continuous operation beyond this setting may
damage the motor. If you intend to operate beyond the rating,
contact your LEESON representative.
Calibration
Page 32
26
T
T
00
00
00
Figure 13. Approximate CUR LIMIT Settings
Calibration
75290.
A
A
A
A
R LIMI
A
75291.
A
A
A
R LIMI
A
A
20A
75292.
A
A
A
A
20A
Page 33
27
Multiple fixed speeds
Replace the speed adjust potentiometer with series resistors
with a total series resistance of 10K ohms (Figure 14). Add a
single pole, multi-position switch with the correct number of
positions for the desired number of fixed speeds.
Figure 14. Multiple Fixed Speeds
S
CE
S
3
Application Notes
TAL SERIE
RESISTAN
1
R
K OHM
Page 34
Adjustable speeds using potentiometers in
series
Replace the speed adjust potentiometer with a single pole,
multi-position switch, and two or more potentiometers in series,
with a total series resistance of 10K ohms. Figure 15 shows a
connection for fixed high and low speed adjust potentiometers.
Figure 15. Adjustable Fixed Speeds Using Potentiometers in
Series
M
M
GH
D
D
28
Application Notes
W
I
PEE
W
1
PEE
H
W
H
Page 35
29
Application Notes
Independent adjustable speeds
Replace the speed adjust potentiometer with a single pole, multiposition switch, and two or more potentiometers in parallel, with a
total parallel resistance of 10K ohms. Figure 16 shows the
connection of two independent speed adjust potentiometers that
can be mounted at two separate operating stations.
Figure 16. Independent Adjustable Speeds
2
M
M
PEED
PEED 1
1
W
K
H
W
K
H
Page 36
30
Figure 17. RUN/JOG Switch Connection to Speed Adjust
Potentiometer
RUN/JOG switch
Using a RUN/JOG switch is recommended in applications where
quick stopping is not needed and frequent jogging is required. Use
a single pole, two position switch for the RUN/JOG switch, and a
normally closed, momentary operated pushbutton for the JOG
pushbutton (see Figure 17). When the RUN/JOG switch is set to
JOG, the motor decelerates to minimum speed. Press the JOG
pushbutton to jog the motor. Return the RUN/JOG switch to RUN
for normal operation.
M
OT
ON
Application Notes
W
PEED P
1
PUSHBUTT
K OH
Page 37
31
Relays may be used in place of a switch, but a neutral position
must be provided to prevent plug reversing (see Figure 18,
page 32). DO NOT CHANGE DIRECTIONS WHILE THE
MOTOR IS STILL RUNNING. Plug reversing the motor (not
allowing the motor to come to a stop before reversing) will
cause excessively high currents to flow in the armature circuit,
which can damage the control and/or motor and is not
recommended.
Reversing
Application Notes
Warning
Do not operate the control outside the recommended
input ±10%.
Page 38
32
Figure 18. Reversing hookup diagram
Motor and battery wire must be a minimum
f
h
UT
UT
501
L
CU
T
P
D
R
3
JP501
C501
Q502
501
SO501
Q504
Q501
Q503
501
C506
C505
C504
h
O
GH
R
OR
MIN SP
CAUTION
of 12 ga. and a maximum of 6 ga.
IL
MAX SPDACCE
R LIMI
IR COM
POWE
POT WIPE
POT LOWP
Customer Supplied
PST Switc
-VDC INP
+VDC INP
L
TB
MOT
T HI
Customer Supplied
PDT Center-Of
enter-Blocked Switc
Page 39
33
Before troubleshooting
Perform the following steps before starting any procedure in this
section:
1. Disconnect DC voltage input from the drive.
2. Check the drive closely for damaged components.
3. Check that no conductive or other foreign material has become
lodged on the printed circuit board.
4. Verify that all connections are correct and in good condition.
5. Verify that there are no short circuits or grounded connections.
6. Check that the drive’s rated armature voltage and current is
consistent with the motor ratings.
For additional assistance, contact your local LEESON distributor, or
the factory direct:
Phone: (262) 377-8810; Fax: (262) 377-3440.
Warning
Dangerous voltages exist on the drive when it is powered, and
up to 30 seconds after power is removed and the motor stops.
When possible, disconnect the drive while troubleshooting.
High voltages can cause serious or fatal injury.
Troubleshooting
Page 40
34
Troubleshooting
Line fuse blows
Line fuse does not blow,
but the motor does not run
1. Line fuses are the wrong
size.
2. Motor cable or armature
is shorted to ground.
3. Nuisance tripping caused
by a combination of
ambient conditions and
high-current spikes.
1. Speed adjust pot or
reference voltage is set
to zero speed.
2. Speed adjust pot or
reference voltage
connections are open.
3. Drive is overloaded.
4. Drive is not receiving
DC line voltage.
1. Check that line fuses
are the correct size.
2. Check motor cable and
armature for shorts.
3. Add a blower to cool
the drive components;
decrease CUR LIMIT
settings, or resize motor
and drive for actual load
demand, or check for
incorrectly aligned
mechanical components
for “jams”. See page 25
for information on
adjusting the CUR LIMIT
trimpot.
1. Increase speed adjust
pot or reference voltage
setting.
2. Check that the speed
adjust pot or reference
voltage connections are
not open.
3. Verify that the motor is
not jammed. Increase
CURR LIMIT setting.
4. Apply DC line voltage
to +VDC and -VDC.
Symptom Possible
Causes
Suggested
Solutions
Page 41
35
Troubleshooting
5. Motor is not connected.
1. MIN SPD and MAX
SPD settings are too
high.
1. MIN SPD and MAX
SPD are not calibrated.
1. MAX SPD setting is too
low.
2. IR COMP setting is too
low.
3. Motor is overloaded.
1. IR COMP is set too
high.
2. Control is in current
limit mode.
5. Connect motor to A1
and A2.
1. Recalibrate MIN SPD
and MAX SPD.
1. Recalibrate MIN SPD
and MAX SPD
1. Increase MAX SPD
setting.
2. Increase IR COMP
setting.
3. Check motor load.
Resize the motor and
drive if necessary.
1. Adjust the IR COMP
setting slightly CCW
until the motor speed
stabilizes.
2. Check that motor and
drive are of sufficient
horsepower and
amperage.
Line fuse does not blow,
but the motor does not run
(cont.)
Motor runs too fast at
maximum speed setting
Motor runs too slow or
too fast
Motor will not reach the
desired speed.
Motor pulsates or surges
under load.
Symptom Possible
Causes
Suggested
Solutions
Page 42
36
Notes
Page 43
Limited Warranty
A. Warranty - LEESON Electric warrants that this product will be free from defects in
workmanship and material for one (1) year or 3,000 hours, whichever comes first, from
date of shipment thereof. Within this warranty period, LEESON Electric will repair or
replace such products that are: (1) returned to LEESON Electric, 2100 Washington Street,
Grafton, WI, 53024-0241 U.S.A.; and, (2) determined by the LEESON Electric to be
defective.
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 Electric is not responsible for removal, installation, or any other incidental
expenses incurred in shipping the product to and from the repair point.
B. Disclaimer - The provisions of Paragraph A are LEESON Electric’s sole obligation and
exclude all other warranties of merchantability for use, express or implied. LEESON
Electric further disclaims any responsibility whatsoever to the customer or to any other
person for injury to the 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 for breech of any of LEESON
Electric’s obligations, whether express or implied, and particularly of any other claim or
breech of warranty contained in Paragraph A, or of any other warranties, express or
implied, or claim of liability that might, despite Paragraph B, be decided against LEESON
Electric by lawful authority, LEESON Electric 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 Electric’s product for any purpose whatsoever.
An adjustment made under warranty does not void the warranty, nor does it imply an
extension of the original one (1) year or 3,000 hour warranty period. Products serviced
and/or parts replaced on a no-charge basis during the warranty period carry the unexpired
portion of the original warranty only.
If for any reason any of the foregoing provisions shall be ineffective, LEESON Electric’s
liability for damages arising out of its manufacture or sale of 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 price of such equipment.
Any action against LEESON Electric 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.
Page 44
2100 Washington Street
Grafton, WI 53024-0241 U.S.A.
Phone: (262) 377-8810
Fax: (262) 377-3440
Document Number 250–0337, Revision 1
Printed in the U.S.A – 2/02
U.S.A. $12.00, Canada $13.00
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