Minarik MM31002A User manual

SCR, Adjustable Speed Drives
for DC Brush Motors
Models:
MM31002A
MM31610A
MM32002A
MM30000
Series
User’s Manual
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Copyright © 2001 by
Minarik Corporation
All rights reserved. No part of this manual may be reproduced or
transmitted in any form without written permission from Minarik
Corporation. The information and technical data in this manual are
subject to change without notice. Minarik Corporation and its
Divisions make 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. Minarik Corporation
and its Divisions assume 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.
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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. Have a qualified
electrical 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. Minarik strongly recommends
the installation of a master switch in the main power input
to stop the drive in an emergency.
Circuit potentials are at 115 VAC or 230 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. Use approved
personal protective equipment and insulated tools if
working on this drive with power applied.

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Specifications 1
Dimensions 2
Installation 6
Mounting ..............................................6
Wiring.................................................7
Shieldingguidelines ....................................8
Speed adjust potentiometer connections .......................9
Fieldoutput............................................10
Heatsinking ...........................................10
Linefusing ............................................11
Connections ...........................................12
MM31002A and MM32002A series drives ..................12
MM31600A series drives ...............................16
Operation 20
Before applying power ...................................20
Drive startup and shutdown ...............................20
Toshutdownthedrive: ................................21
Reversing ..........................................21
Starting and Stopping Methods .............................21
Line starting and stopping ..............................22
Decelerating to minimum speed ..........................22
Decelerate to minimum speed using INHIBIT terminals ........23
Dynamic braking ......................................24
Calibration 26
Calibration procedure ....................................28
MINIMUM SPEED (MIN SPD) ...........................28
MAXIMUM SPEED (MAX SPD) ..........................29
REGULATION (IR COMP) ..............................29
TORQUE LIMIT (TORQUE) .............................30
ii
Contents
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Application Notes 32
Reversing with dynamic braking ............................32
Reversing with a DLC600 .................................33
Independent Adjustable Speeds ............................34
Adjustable speeds using potentiometers in series ...............35
Multiple fixed speeds ....................................36
RUN/JOG switch .......................................37
RUN/JOG option #1 ...................................37
RUN/JOG option #2 ...................................38
Leader-follower application ................................39
Single speed potentiometer control of multiple drives ............40
Troubleshooting 41
Before troubleshooting ...................................41
ReplacementParts ......................................45
Unconditional Warranty inside back cover
iiiContents
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Figure 1. MM31002A Dimensions ...............................2
Figure 2. MM32002A Dimensions ...............................3
Figure 3. MM31610A Dimensions ...............................4
Figure 4. 223-0159 Heat Sink Dimensions .........................5
Figure 5. Speed Adjust Potentiometer Installation ...................9
Figure 6. Power, Fuse and Motor Connections for MM31002A and
MM32002A Series Drives .............................14
Figure 7. Voltage Follower Connection for MM31002A and
MM32002A Series Drives .............................15
Figure 8. Power, Fuse and Motor Connections for
MM31600A Series Drives .............................18
Figure 9. Voltage Follower Connection for MM31600A Series Drives ....19
Figure 10. Run/Decelerate to Minimum Speed Switch ................22
Figure 11. Run/Decelerate to Minimum Speed Switch ................23
Figure 12. Dynamic Brake Connection ...........................25
Figure 13. Calibration Trimpot Layout ............................27
Figure 14. Typical IR COMP and TORQUE Settings .................31
Figure 15. Reversing Circuit Connection ..........................32
Figure 16. Reversing with a DLC600 .............................33
Figure 17. Independent Adjustable Speeds ........................34
Figure 18. Adjustable Fixed Speeds Using Potentiometers in Series .....35
Figure 19. Multiple Fixed Speeds ...............................36
Figure 20. RUN/JOG Switch (first wiring option) ....................37
Figure 21. RUN/JOG Switch (second wiring option) ..................38
Figure 22. Leader-Follower Application ...........................39
Figure 23. Single Speed Potentiometer Control of Multiple Drives .......40
iv
Illustrations
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Table 1. Field Output Connections ............................10
Table 2. Recommended Dynamic Brake Resistor Sizes ............24
Table3. ReplacementParts .................................45
v
Tables
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Notes
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Specifications
MM31002A MM32002A MM31610A
Line voltage 115 VAC 230 VAC 115 VAC
Horsepower 1/8-1/2* 1/4-1* 1/20 - 1/4
Armature output 0-90 VDC 0-180 VDC 0-90 VDC
Max arm curr. 5 ADC** 5 ADC** 2.5 ADC
Field output 50/100 VDC 100/200 VDC 50 VDC
*Max HP = 1 and max armature current = 10 ADC if mounted on 223-0159 heat
sink.
**Max HP = 2 and max armature current = 10 ADC if mounted on 223-0159
heat sink.
AC Line Voltage Tolerances -5% +10%, 50/60 Hz, single phase
Maximum Output Field Current 1 ADC
Form Factor 1.37 at base speed
Accel. Time Range 0.5 – 11 seconds
Decel. Time Range coast to a stop – 13 seconds
Analog Input Voltage Range (signal must be isolated; S1 to S2) 0–5VDC
Input Impedance (S1 to S2) 100K ohms
Load Regulation 1% base speed or better
Vibration 0.5G max (0 – 50 Hz)
0.1G max (>50 Hz)
Ambient Temp. Range 10°C – 55°C
1
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2
Dimensions
Figure 1. MM31002A Dimensions
ALL DIMENSIONS IN INCHES [MILLIMETERS]
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3Dimensions
Figure 2. MM32002A Dimensions
ALL DIMENSIONS IN INCHES [MILLIMETERS]
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4 Dimensions
Figure 3. MM31610A Dimensions
ALL DIMENSIONS IN INCHES [MILLIMETERS]
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5Dimensions
Figure 4. 223-0159 Heat Sink Dimensions
ALL DIMENSIONS IN INCHES [MILLIMETERS]
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6
Warning
Do not install, rewire, or remove this control with
power applied. Doing so may cause fire or serious injury.
Make sure you have read and understood the Safety
Warnings before attempting installation.
The chassis must be earth grounded. Use a star washer
beneath the head of at least one of the mounting screws to
penetrate the anodized chassis surface and to reach bare
metal.

• Drive components are sensitive to electrostatic fields. Avoid
direct contact with the circuit board. 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 heat sources. Operate the drive
within the specified ambient operating temperature range.
• Prevent loose connections by avoiding excessive vibration of
the drive.
Installation
Mounting
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7Installation
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.
Circuit potentials are at 115 or 230 VAC above 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 or the drive is disabled. Opening
any one motor lead may destroy the drive.

Ꮨ
Use 18–22 AWG wire for speed adjust potentiometer wiring.
Use 14–16 AWG wire for AC line (L1, L2), field (F1, F2) and
motor (A1 and A2) wiring.
Wiring
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8 Installation
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.

As a general rule, Minarik recommends shielding of all
conductors.
If it is not practical to shield power conductors, Minarik
recommends shielding all logic-level leads. If shielding logic
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, it may be necessary to add AC line filtering devices, or
to mount the drive in a less noisy environment.
Shielding guidelines
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9Installation
Install the circular insulating disk between the mounting panel
and the 10K ohm speed adjust potentiometer (see Figure 5).
Mount the speed adjust potentiometer through a 0.38-inch
(10 mm) hole with the hardware provided. Twist the speed
adjust potentiometer wires to avoid picking up unwanted
electrical noise.
Figure 5. Speed Adjust Potentiometer Installation
Warning
Be sure that the potentiometer tabs do not make contact
with the potentiometer enclosure. Grounding the input will
cause damage to the drive.

Speed adjust potentiometer connections
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10 Installation
Warning
The field output is for shunt wound motors only. Do not
make any connections to F1 and F2 when using a
permanent magnet motor.

Use 18 AWG wire to connect the field output to a shunt
wound motor. See Table 1 for field output connections.
Table 1. Field Output Connections
Line Voltage Approximate Connect Motor
(VAC) Field Voltage (VDC) Field To
115 50 F1 and L1
115 100 F1 and F2
230 100 F1 and L1
230 200 F1 and F2
Heat sinking
All MM31600A series drives contain sufficient heat sinking in
their basic configurations. MM31002A and MM32002A series
drives require heat sink kit 223-0159 when the continuous
armature current is above 5 ADC. Refer to Specifications
(page 1) for operating limits when mounted on a heat sink.
Field output
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11Installation
Line fusing
Minarik drives require an external fuse for protection. Use fast
acting fuses rated for 250 VAC or higher, and 150% of
maximum motor armature current. Minarik Corporation offers
two fuse kits: part number 050–0066 (1–5A Fuse Kit) and
050–0071 (5–15A Fuse Kit). See Replacement Parts (page 45)
for fuse kit contents.
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12 Installation
Warning
Do not connect this equipment with power applied.
Failure to heed this directive may result in fire or serious
injury.
Do not apply 230 VAC line voltage to MM31002A or
MM31600A series drives. This will result in severe
damage to the drive, possible fire and serious injury.
Minarik strongly recommends the installation of a master
power switch in the voltage input line. The switch
contacts should be rated at a minimum of 200% of motor
nameplate current and 250 volts.

MM31002A and MM32002A series drives
Connect the power input leads, external line fuse(s) and DC
motor to the drive’s printed circuit board (PCB) as shown in
Figure 6 (page 14).
Connections
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