Minarik MM311U User manual

MM300 Series
Isolated Input, Dual Voltage, Variable Speed SCR
Drives for Brush Motors
launaMs’resU
MODELS:
MM311U
MM301U
MM301A

Copyright © 2013 by
Minarik Drives
All rights reserved. No part of this manual may be reproduced or transmitted in any form
without written permission from Minarik Drives. The information and technical data in this
manual are subject to change without notice. Minarik Drives 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 Drives 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.

I
Safety Warnings
This symbol denotes an important safety tip or warning. Please read these sec-
tions carefully prior to performing any of the instructions contained in that section.
• 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 mainte-
nance procedures.
• It is possible for a drive to run at full speed as a result of a component failure.
Please ensure that a master switch has been placed in the AC line to stop the drive
in an emergency.
• This drive is isolated from earth ground. 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.

II
Contents
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .i
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Shielding Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Chassis Drives (MM301U, MM311U) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Heatsinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Line Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Speed adjust potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Cage-clamp terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Power Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Field Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
START/STOP pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Tachometer feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Voltage or current follower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Slide switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Enclosed Drives (MM301A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Heatsinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Line Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Speed adjust potentiometer input with START/STOP pushbuttons . . . . . . . . . . . .25
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Before applying power (all models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Chassis Drives (MM301U, MM311U) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
III
Line starting and line stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Decelerating to minimum speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Dynamic braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Dynamic brake resistor value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Drive Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
MINIMUM SPEED (MIN SPD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
MAXIMUM SPEED (MAX SPD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
CURRENT LIMIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
IR COMPENSATION (IR COMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ACCELERATION (ACCEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
DECELERATION (DECEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
TACH VOLTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Multiple fixed speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Adjustable speeds using potentiometers in series . . . . . . . . . . . . . . . . . . . . . . . . .43
Independent adjustable speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Reversing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
RUN/JOG switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Reversing with a DIGI=LOK Controller, Model DLC600 . . . . . . . . . . . . . . . . . . . . .47
Enclosed Drive Operating Modes (Manual / Auto) . . . . . . . . . . . . . . . . . . . . . . . . .30
Enclosed Drive Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
54Unconditional Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IV

V
Illustrations
Fig. Description Page
1. MM301U and MM311U Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2. MM301A Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. MM300 Series Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
4. Speed Adjust Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5. Cage-Clamp Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6. MM301U and MM311U AC Line, Motor and Field Connections . . . . . . . . . . . . .13
7. Signal Follower Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
8. Slide Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
9. MM301A Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
12. Dynamic Brake Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
13. Calibration Trimpot Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
14. Typical CURRENT LIMIT, and IR COMP Settings for MM300 Series
(actual settings may vary wtih each application) . . . . . . . . . . . . . . . . . . . . . . . .38
15. Mutiple Fixed Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
16. Adjustable Fixed Speeds Using Potentiometers in Series . . . . . . . . . . . . . . . . .43
17. Independent Adjustable Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
18. Reversing Circuit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
19. RUN/JOG Switch Connection to Speed Adjust Potentiometer . . . . . . . . . . . . . .46
20. Reversing with a DLC600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
21. MM300 Series Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
10. Current Limit and Power LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
11. Run/Decelerate to Minimum Speed Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

VI
Tables
Fig. Description Page
1. Recommended Line Fuse Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2. Field Output Connections for Chassis Drives . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3. Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

1
Specifications
Max.
Armature HP Range HP Range
Current with 115 VAC with 230 VAC
Model (Amps DC) Applied Applied
MM311U 3.0
MM301U 10.0
AC Line Voltage 115 VAC or 230 V AC, 50 or 60 Hz, 1 Phase
Armature Voltage (115 VAC Input) 0–90 VDC
Armature Voltage (230 VAC Input) 0–180 VDC
Form Factor 1.37 at base speed
Field Voltage (115 VAC) 50 VDC (F1 to L1); 100 VDC (F1 to F2)
Field Voltage (230 VAC) 100 VDC (F1 to L1); 200 VDC (F1 to F2)
Maximum Field Current 1 ADC
Acceleration Time Range (with no load) 1-11 seconds
Deceleration Time Range (with no load) 1-11 seconds
Analog Input Voltage Range (S1 to S2) 0-10 VDC or 4-20 mADC
Input Impedance (S1 to S2) >100K ohms
Load Regulation (% of base speed)
with Armature Feedback 1% or better
with Tachogenerator Feedback 0.1%
Vibration 0.5G max. (0-50 Hz); 0.1G max. (>50 Hz)
MM301A 10.0 1/4–1 1/2–2
1/20–1/8 1/10–1/4
1/4–1 1/2–2

Ambient Temperature Range
Open Chassis 10°C-55°C
2Specifications
Cased 10°C-45°C
Weight
Open Chassis 2.1 lbs (953 grams)
Cased 7.75 lbs (3.5 kilograms)
Tachogenerator Feedback Voltage Range 7-50 VDC per 1000RPM
Short-circuit current rating (SCCR) is the maximum short-circuit
current that the speed control can safely withstand when
protected by a specific over-current protective device(s).
The rating for models rated more than 1 HP is tabulated below:
Drive
Model No.
Short Circuit
Current Rating
Maximum
Current,
kA
Maximum
Voltage,
V
Types of Branch
Circuit Protection
Maximum
Rating of
Overcurrent
Protection
MM301A Non-time
Delay K5
Fuse
Inverse
Time
Circuit
Breaker
10,000 240V 30A
MM301U 10,000 240V Non-time
Delay K5
Fuse
Inverse
Time
Circuit
Breaker
30A

3
Figure 1. MM301U and MM311U Dimensions
Dimensions
SIX (6) MOUNTING SLOTS
0.18 [5] WIDE x 0.30 [8] DEEP
ALL DIMENSIONS IN INCHES [MILLIMETERS]
4.46 [113] 3.00 [76]
0.70 [18]
0.19 [5]
0.60 [15]
1.90 [48]
0.77 [19]
0.98 [25]
6.30 [160]
6.90 [175]

4
0
.22
[
6
]
6.90
[
175
]
6.30
[
160
]
9
.
80
[
249
]
1
0
.22
[
260
]
1.45
[
37
]
1.50
[
38
]
1.50
[
38
]
1.4
0
[36
]
7
.
00
[
178
]
0
.1
2
[
3
]
2.
31
[
59
]
4.7
8
[
121
]
5
.
5
1
[
140
]
THREE 0.88 [22] KNOCKOUTS
ALL DIMENSIONS IN INCHES [MILLIMETERS]
Figure 2. MM301A Dimensions
Dimensions

5
A
C
LIN
E
F
US
E
S
(
FU501-FU502
)
LINE V
O
LTA
GE
S
ELE
C
T
O
R
S
WIT
C
HE
S
CU
RRENT LIMI
T
LED
(
IL501
)
P
O
WER LE
D
(
IL502
)
A
C
LINE V
O
LTA
GE
TERMINAL BL
OC
K
S
FIELD
TERMINAL BL
OC
K
S
ARMAT
U
R
E
TERMINAL BL
OC
K
S
ARMAT
U
RE V
O
LTA
GE
S
ELE
C
T
O
R
S
WIT
CH
CU
RRENT
/
V
O
LTA
GE
S
I
G
NAL
S
ELE
C
T
OR
S
WIT
CH
1
0
-T
U
RN MAXIM
UM
AND MINIM
U
M
S
PEE
D
TRIMMER P
O
TENTI
O
METER
S
S
PEED AD
JUS
T P
O
TENTI
O
METE
R
TERMINAL BL
OC
K
S
S
TART
/S
T
OP
TERMINAL BL
OC
K
S
TA
C
H
OG
ENERAT
OR
TERMINAL BL
OC
K
S
TA
C
H
OG
ENERAT
O
R V
O
LTA
GE
TRIMMER P
O
TENTI
O
METE
R
FEEDBA
C
K
S
ELE
C
T
OR
SWITCH
(
SW505
)
IR
CO
M
P
TRIMMER P
O
TENTI
O
METE
R
CU
RRENT LIMI
T
TRIMMER P
O
TENTI
O
METE
R
A
CC
EL AND DE
C
E
L
TRIMMER P
O
TENTI
O
METER
S
(
SW501, SW502
)
(
SW503
)
(
SW504
)
(
P501, P502
)
(
P505
)
(
P506
)
(
P503, P504
)
(
P507
)
Figure 3. MM300 Series Layout
Layout

6
Wiring
Use 12 AWG wire for the AC line voltage (L1 and L2), motor armature (A1 and A2),
and dynamic brake resistor (if used). Use 18 AWG wire for logic (field output, speed
adjust potentiometer, tachogenerator, etc.)
Twist logic wires to avoid picking up unwanted electrical noise. Use shielded cable if
wires are longer than 12 inches (30 cm).
Do not bundle logic wires with power carrying wires. This can cause erratic operation.
Keep logic wires in a conduit separated by at least 2 inches from power carrying
wires. Do not allow logic wires to travel in parallel to power carrying wires for more
than 1 inch.
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.
Installation

7
Installation
Shielding guidelines
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 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, it may be necessary
to add AC line filtering devices, or to mount the drive in a less noisy environment.
Logic wires from other input devices, such as motion controllers and PLL velocity con-
trollers, must be separated from power lines in the same manner as the logic I/O on
this drive.

8Installation
Chassis Drives (MM301U, MM311U)
Mounting
Mount the drive with its board in either a horizontal or vertical plane. Four 0.188 inch (4.8
mm) wide slots in the chassis accept #8 pan head screws.
The chassis units do not have to be earth grounded. If you choose to ground the chas-
sis, use a star washer beneath the head of at least one of the mounting screws to pen-
etrate the anodized chassis surface and to reach bare metal.
Drive components are sensitive to electrostatic fields. Avoid contact with the circuit
board directly. Hold the 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.
Observe the following guidelines when installing an isolation transformer:
• A power disconnecting device must be installed between the power line and primary
of the transformer.
• If the power disconnecting device is a circuit breaker, the circuit breaker trip rating
must be coordinated with the in-rush current (10-12 times full load current) of the
transformer.

9
Installation
Heatsinking
The MM301U and MM311U contain sufficient heat sinking in its original configuration.
No additional heat sinking is necessary when installed in accordance with the guide-
lines specified in this instruction manual. The chassis plate acts as the thermal
heatsink.
Line fusing
MM300 Series drives have line fuses mounted on fuse holders 501 and 502 (FU501
and FU502). See the Replacement Parts section for preinstalled line fuse size. When
replacing the line fuses, use fast acting fuses rated for 250 VAC or higher, and at
least 200% of the armature current. See Figure 3 (page 5) for fuse holder location,
and Table 1 for recommended line fuse sizes.
Table 1. Recommended Line Fuse Sizes
90 VDC Motor 180 VDC Motor Max. DC Armature AC Line Fuse
Horsepower Horsepower Current (amps) Size (amps)
1/20 1/10 0.5 3
1/15 1/8 0.8 3
1/8 1/4 1.5 5
1/6 1/3 1.7 5
1/4 1/2 2.6 8
1/3 3/4 3.5 8
1/2 1 5.0 10
3/4 1 1/2 7.6 15
Minarik Drives offers a 63 mA pico fuse (part number 050-0081) which protects the transformer
and logic.

10 Installation
Speed adjust potentiometer
Install the circular insulating disk between the mounting panel and the 10K ohm speed
adjust potentiometer (see Figure 4). Mount the speed adjust potentiometer through a
0.38 inch (10 mm) hole with the hardware provided. Twist the speed adjust poten-
tiometer wire to avoid picking up unwanted electrical noise. If potentiometer leads are
longer than 18 inches (46 cm), use shielded cable.
Alternate speed adjust potentiometer connections may be found in the Application
Notes section of this user guide.
Note: The user may choose to install a 5K ohm speed adjust potentiometer; howev-
er, the MIN SPD and MAX SPD trimpots must be recalibrated if the 5K ohm poten-
tiometer is used.
Figure 4. Speed Adjust Potentiometer

11
Installation
Cage-clamp terminals
Logic connections are made to a cage-clamp terminals. To insert a wire into the cage-
clamp terminal:
1. Press down on the lever arm using a
small screwdriver.
2. Insert wire into the wire clamp
3. Release the lever arm to clamp wire.
Figure 5. Cage-Clamp Terminal

12 Installation
Connections
Motor
Connect a motor to terminals A1 and A2 as shown in Figure 6 (page 13). Ensure that
the motor voltage rating is consistent with the drive’s output voltage.
Minarik drives supply motor voltage from A1 and A2 terminals (TB501). 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 with each other.
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.