USER`S MANUAL
USER’S MANUAL
VFD SERIES
Variable-frequency
drives
for 3-phase and
single-phase
AC motors
VFD05-D230-PCM
VFDP4X04-D230-PCM
VFDA4X04-D230-PCM
VFDF4X04-D230-PCM
Copyright  2004 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. KC0304
Printed in the United States of America.
i
Safety Warnings
• This symbol  denotes an important safety tip or
SHOCK
HAZARD
AVOID
HEAT
KEE
DR
OID
ATION
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 using 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.
ii
General Information
The Minarik Variable Frequency Drive (VFD) Series are
solid-state, variable-frequency AC motor drives. The VFD
utilizes a 115 or 230 VAC, 50/60 Hz, single-phase input,
and is factory calibrated for an output of 0 to 60 Hz. They
will operate any 1.5 HP or smaller, 208/230-volt threephase-AC-induction, single-phase permanent split capacitor
motor (see page v) and can be user calibrated for 0 through
120 Hz output.
Although VFD inverters can operate over their full speed
range, most motors will operate with constant torque over a
10:1 speed range, 6 Hz to 60 Hz, and constant horsepower
above 60 Hz. (Inverter-duty motors may operate
satisfactorily over a 20:1 speed range.) Some motors can
be satisfactorily operated at speeds as low as 50 rpm
(speed range 50:1). Below 50 rpm, some motors may
show signs of “stepping” or “cogging”, and may run warmer.
*Although the VFD will allow a minimum of 0 Hz, the actual minimum
frequency is dependent on motor type and load. The motor may need to be
derated for low-frequency (30 Hz and lower) operation. Please consult the
motor manufacturer.
General Information
Many 3-phase inverter manufacturers claim that they can
run single-phase motors effectively. This is normally
accomplished by wiring only 2 phases; however, this
method may cause instabilities due to the lack of feedback
from one of the motor connections. Furthermore, motor
torque will be reduced considerably because the phases
are 120° apart. Although the VFD uses this method of
connection, its fundamental design enables it to operate
efficiently under these conditions.
The VFD series features solid-state reversing with
adjustable acceleration and deceleration. The VFD may
also interface with motor thermal protection through the
enable circuit.
iii
iv
General Information
VFD SERIES FEATURES & BENEFITS
• SOLID-STATE CIRCUITRY
• SOLID-STATE REVERSING
• ADJUSTABLE CARRIER FREQUENCY (4 kHz - 16 kHz)
• MULTIPLE MOTOR OPERATION
• THREE-PHASE AND SINGLE-PHASE MOTOR CONTROL
LED INDICATORS
POWER
(green)
ENABLE
(red)
FAULT
(red)
TORQUE
(yellow)
STANDARD ISOLATION
ACCEPTS A 0 - 5 VDC,
0 - 10 VDC, or 4 - 20 mA
NON-ISOLATED SIGNAL
ADJUSTABLE
CALIBRATION
TRIMPOTS
DECEL
ACCEL
MIN
MAX
BOOST
SLIP COMP
TQ LIMIT
ZERO SET
VOLTAGE DOUBLER
DOUBLES THE OUTPUT
VOLTAGE TO THE AC
MOTOR WHEN 115 IS APPLIED
BRAKE
TIME
BRAKE
CURRENT
Figure 1. VFD Series Features & Benefits
v
Important Information
 Warning
Caution should be taken when operating fan-cooled
motors at low speeds because their fans may not
move sufficient air to properly cool the motor. Minarik
recommends “inverter-duty” motors when the speed
range is beyond 10:1.
In addition to standard 3-phase induction motors, the
following motor types may be used with the VFD:
• Permanent split capacitor (PSC)
• Shaded pole
• AC synchronous

The following motor types MAY NOT be used:
•
•
•
•
•
Split phase
Capacitor start
Repulsion induction
Series Universal AC/DC
Any motor with starting switch (centrifugal or relay)
and/or separate starting winding.
vi
Contents
Safety Warnings
i
General Information
ii
Important Information
v
Specifications
1
Dimensions
2
Layouts
5
Jumper Locations
8
Installation
10
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Shielding guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Heat sinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Speed adjust potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Input AC Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Motor connections (all VFD-series controls) . . . . . . . . . . . . . . . . . . . . . . .22
Speed Adjust Potentiometer Connections . . . . . . . . . . . . . . . . . . . . . . . . .24
Signal and Optional Switch Connections . . . . . . . . . . . . . . . . . . . . . . . . .25
Voltage or Current Follower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Operation
28
Voltage Doubler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
To reverse motor direction: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Starting and stopping methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
To coast the motor to a stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
To brake the motor to a stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Thermal protection of the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
VFDA4X & VFDF4X RUN/JOG Switch . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Line starting and stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Contents
vii
Calibration
37
Calibration Procedure Setup for 60 Hz Motors: . . . . . . . . . . . . . . . . . . . . . . .40
MAXIMUM SPEED (MAX SPD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
MINIMUM SPEED (MIN SPD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
TORQUE LIMIT (TQ LIMIT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
ACCELERATION (ACCEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
DECELERATION (DECEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
BOOST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
SLIP COMPENSATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Calibration Procedure Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Application Notes
45
Independent adjustable speeds with DIR switch . . . . . . . . . . . . . . . . . . . . . .45
RUN/JOG switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Single speed potentiometer control of multiple motors . . . . . . . . . . . . . . . . . .47
Quick Reversing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Troubleshooting
Before troubleshooting . . . . . . .
Diagnostic LEDs . . . . . . . . . . . .
POWER LED . . . . . . . . . . . .
ENABLE LED . . . . . . . . . . .
FAULT LED . . . . . . . . . . . . .
TQ LIMIT LED . . . . . . . . . . .
Optional C510 Capacitor Kit (p/n:
Replacement Parts . . . . . . . . . .
Unconditional Warranty
49
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
202-0108) . . . . . . . . . . . . . . . . . . . . . . . . .58
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Inside Back Cover
Tables
Table 1. Line Fusing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Table 2. Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
viii
Illustrations
Figure
Figure
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Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
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Figure
Figure
1. VFD Series Features & Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
2. VFDA4X04 and VFDF4X04 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
3. VFDP4X04 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
4. VFD05 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5. VFDA4X04 and VFDF4X04 Circuit Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6. VFDP4X04 Circuit Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7. VFD05 Circuit Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
8. VFDA4X04 and VFDF4X04 Jumper Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
9. VFD05 and VFDP4X04 Jumper Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
10. Speed Adjust Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
11. AC Line Connections for VFD05 and VFDP4X04 . . . . . . . . . . . . . . . . . . . . . . . . . .19
12. AC Line Connections for VFDA4X04 and VFDF4X04 . . . . . . . . . . . . . . . . . . . . . .19
13. Voltage Doubler Feature for VFDA4X04 and VFDF4X04 . . . . . . . . . . . . . . . . . . . .21
14. Voltage Doubler Feature for VFDP4X04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
15. Voltage Doubler Feature for VFD05 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
16. Motor Connections-Single Phase Operation (pre-wired cap) . . . . . . . . . . . . . . . . .22
17. Motor Connections -Single Phase Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
18. Motor Connections -Three Phase Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
19a. Speed Adjust Potentiometer Connections to TB501 for VFDx4X04 . . . . . . . . . . . .24
19b. Speed Adjust Potentiometer Connections to TB501 for VFD05 . . . . . . . . . . . . . . .24
20 Signal and Optional Switch Connections for VFDx4X04 and VFD05 . . . . . . . . . . .26
21. Jumper Settings-JMP504 and JMP505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
22. VFDA4X04 and VFDF4X04 Jumper Settings-JMP506 . . . . . . . . . . . . . . . . . . . . . .33
23. VFDP4X04 and VFD05 Jumper Settings-JMP506 . . . . . . . . . . . . . . . . . . . . . . . . .33
24. Thermal Overload Switch with Optional Enable / Disable Switch . . . . . . . . . . . . . .34
25. Jumper Settings--JMP503 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
26. VFDA4X04 and VFDF4X04 Calibration Trimpot Layout . . . . . . . . . . . . . . . . . . . . .38
27. VFDP4X04 and VFD05 Calibration Trimpot Layout . . . . . . . . . . . . . . . . . . . . . . . .39
28. Independent Adjustable Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
29. RUN/JOG Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
30. Single Speed Potentiometer Control of Multiple Motors . . . . . . . . . . . . . . . . . . . . .47
31. VFD Quick Reversing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
32. VFDA4X04 and VFDF4X04 Diagnostic LED location . . . . . . . . . . . . . . . . . . . . . . .52
33. VFD05 and VFDP4X04 Diagnostic LED location . . . . . . . . . . . . . . . . . . . . . . . . . .53
34. VFD05 and VFDP4X04 Carrier frequency capacitor location . . . . . . . . . . . . . . . . .59
35. VFDA4X04 and VFDF4X04 Carrier frequency capacitor location . . . . . . . . . . . . . .60
1
Specifications
1-Phase
Input
Drive
(VAC)
VFDP4X04-D230-PCM *115 / 230
VFDA4X04-D230-PCM *115 / 230
VFDF4X04-D230-PCM *115 / 230
VFD05-D230-PCM
*115 / 230
*
1 or 3-Phase
Output
(VAC)
230
230
230
230
Max
HP
1
1
1
1½
Max Continuous
Output
Current (AC)
4.0
4.0
4.0
5.0
AC
Amps
In
14/7
14/7
14/7
20/10
Connect only 115 VAC line input to the 115 VAC terminals. Application of 230 VAC line input when set for 115
VAC will result in severe damage to the motor and drive, and possible explosion and injury.
† Derate current by 2% per degree if the operating temperature is above 40°C. Under no circumstances may the
ambient temperature exceed 55° C.
AC Voltage Input Range
Standard Carrier Frequency
Output Frequency Range
Maximum Output Frequency Range
Minimum Output Frequency Range
Acceleration Time Range
Deceleration Time Range
Analog Input Voltage Range
Input Impedance, S1 to S2
Braking Current
Braking Time
Vibration
Weight
Ambient Operating Temperature Range
115/230 VAC ± 10%, 50/60 Hz single phase
16 KHz
0 – 120 Hz
30 – 120 Hz
0 – 30 Hz
1 – 12 seconds
1 – 12 seconds
0 – 5VDC,0-10VDC,4-20mA**
~ 100K ohms
0-100% rated output
1 – 12 seconds
0.5G max (20 – 50 Hz)
0.1G max (> 50 Hz)
1.2 lb
10° – 40° C
** Isolation is standard, and allows for non-isolated speed input, enable and direction switch inputs to be used.
2
Dimensions
Forward
Run
Reverse
Start
Jog
Stop
Figure 2. VFDA4X04-D230-PCM and VFDF4X04-D230-PCM Dimensions
3
5.625 [143]
POWER
FWD
OFF
REV
2 3
1
1
8 9
0
0
7.200 [183]
0.188
[5]
5 6
7
4
SPEED
6.350 [161]
ADJUSTABLE SPEED
REVERSING
AC MOTOR CONTROL
0.850
[22]
BOTTOM PLATE
0.73 [18.5]
CONDUIT HOLES
2 PLACES
4.56 [116]
2.12 [53.8]
2.20
[55.9]
3.40
[86.4]
ALL DIMENSIONS IN INCHES [MILLIMETERS]
Figure 3. VFDP4X04-D230-PCM Dimensions
4
5.625 [143]
C501
JMP504
1 2 3
TB501
4mA
ZERO
SET
JMP505
MIN
IC501
T501
MAX
I
IL501
JMP503
UV TRIP
RESTART
T
C502
IL504
ACCEL
ENABLE
BRAKE
IL501
IL502
COAST
POWER FAULT
JMP506
DECE
SL
COM
J501
Q14
C501
BOOS
IL503
Q13
R8
R88
TORQUE
LIMIT
R8
R89
8
JMP501
7.200 [183]
FOR 115VAC
D20
D21
C3
C35
R76
R7
R75
Q11
BR501
C34
6.350 [161]
C503
D19
C502
C508
JMP504
INPUT SELECT
1-2 = VDC
2-3 = mA
R84
JMP505
RANGE SELECT
1 = 0 - 5 VDC
2 = 0 - 10 VDC
3 = 4 - 20 mA
FU5
SCR501
C38
C28
BRAKE
CURRENT
R8
R80
FU502
BRAK
TIM
230 VAC
JMP502
115 VAC
0.850 [22]
C504
D18
SCR502
L1
L2
U
V
W
TB502
ALL DIMENSIONS IN INCHES [MILLIMETERS]
Maximum Height (C501 & C502): 3.30 [84]
Figure 4. VFD05-D230-PCM Dimensions
0.188 [5]
5
Layouts
C501
C502
D
S3
S2 S1 E1 E2
TB501
JMP504
4mA
ZERO
SET
1 2 3
IC502
J501
JMP505
1 2 3
T501
T502
IC501
MAX
MIN
JMP501: SELECT INPUT TYPE
1 & 2 = CURRENT INPUT
2 & 3 = VOLTAGE INPUT
IL504
JMP502: SELECT RANGE
1 = 0 - 5 VDC INPUT
ENABLE
2 = 0 - 10 VDC INPUT
3 = 4 - 20 mA INPUT
IL501
IL502
IC503
C504
IC504
C505
POWER
BRAKE
CURRENT
FAULT
SLIP
COMP
BRAKE
TIME
TORQUE
LIMIT
C507
UV
TRIP
C508
JMP506
J503
RESTART
JMP503
COAST
BRAKE
J502
R1
IC11
115V
FU502
230V
JMP501
FU501
TB502
U
V
W
L1
L2
Figure 5. VFDA4X04 and VFDF4X04-D230-PCM Circuit Board Layout
6
C501
JMP504
TB501
4mA
ZERO
SET
JMP505
MIN
IC501
T501
MAX
I
IL501
JMP503
UV TRIP
IL504
C502
ENABLE
BRAKE
COAST
IL502
IL501
DECEL
FAULT
JMP506
SLIP
J501
Q14
C501
BOOST
IL503
Q13
R8
R88
R8
R89
8
115
D20
BR501
C503
R76
Q11
C3
C35
C34
JMP501
230
D19
C502
C508
JMP504
INPUT SELECT
1-2 = VDC
2-3 = mA
R84
JMP505
RANGE SELECT
1 = 0 - 5 VDC
2 = 0 - 10 VDC
3 = 4 - 20 mA
FU5
SCR501
C38
C28
BRAKE
R8
R80
FU502
C504
D18
SCR502
TIME
230 VAC
115 VAC
JMP502
L1
L2
U
V
W
TB502
Figure 6. VFDP4X04-D230-PCM Circuit Board Layout
7
C501
JMP504
TB501
4mA
ZERO
SET
JMP505
MIN
IC501
T501
MAX
I
IL501
JMP503
UV TRIP
IL504
C502
ENABLE
BRAKE
COAST
IL502
IL501
DECEL
FAULT
JMP506
SLIP
J501
Q14
C501
BOOST
IL503
Q13
R8
R88
R8
R89
8
D20
BR501
C503
R76
Q11
C3
C35
C34
STALL JUMPER
FOR 115VAC
D19
JMP504
INPUT SELECT
1-2 = VDC
2-3 = mA
C502
R84
JMP505
RANGE SELECT
1 = 0 - 5 VDC
2 = 0 - 10 VDC
3 = 4 - 20 mA
FU5
SCR501
C38
C28
BRAKE
R8
R80
FU502
C504
D18
SCR502
TIME
230 VAC
115 VAC
JMP502
L1
L2
U
V
W
TB502
Figure 7. VFD05-D230-PCM Circuit Board Layout
8
Jumper Locations
C501
C502
D
S3
S2 S1 E1 E2
JMP504
TB501
JMP504
4mA
ZERO
SET
1 2 3
IC502
J501
JMP505
1 2 3
T501
T502
IC501
JMP505
MAX
MIN
JMP504: SELECT INPUT
1 & 2 = VDC
2 & 3 = mA
IC503
IL504
JMP505: SELECT RANGE
1 = 0 - 5 VDC INPUT
2 = 0 - 10 VDC INPUT
3 = 4 - 20 mA INPUT
C504
IC504
ENABLE
C505
IL501
POWER
IL502
BRAKE
CURRENT
FAULT
SLIP
COMP
BRAKE
TIME
TORQUE
LIMIT
C507
UV
TRIP
JMP506
C508
JMP506
J503
RESTART
JMP503
JMP503
COAST
BRAKE
J502
R1
IC11
115V
FU502
230V
JMP501
FU501
JMP501
TB502
U
V
W
L1
L2
Figure 8. VFDA4X04 and VFDF4X04 Jumper Locations
9
C501
JMP504
TB501
4mA
ZERO
SET
JMP505
JMP503
MIN
IC501
T501
MAX
IL501 JMP503
UV TRIP
IL504
C502
ENABLE
BRAKE
COAST
JMP506
IL502
IL501
DECEL
FAULT
JMP506
J501
SLIP
UV TRIP
Q14
C501
BOOST
IL503
Q13
R88
R89
JMP501
JMP501
D20
BR501
C503
R76
Q11
C35
C34
(GENERAL LOCATION)
D19
C502
C508
JMP504
INPUT SELECT
1-2 = VDC
2-3 = mA
R84
JMP505
RANGE SELECT
1 = 0 - 5 VDC
2 = 0 - 10 VDC
3 = 4 - 20 mA
FU5
SCR501
C38
C28
BRAKE
R80
TIME
JMP502
115 VAC
JMP502
D18
SCR502
230 VAC
FU502
C504
L1
L2
U
V
W
TB502
Figure 9. VFDP4X04 and VFD05 Jumper Locations
JMP504
JMP505
10
Installation
 Warning
쇵
DO NOT install, rewire, or remove this control with
input 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. Opening any one
motor lead may damage the drive.
Wait at least one minute after power is removed from
drive before working on drive.
• It is recommended that tape be applied to the back side
of the conduit knockouts before knocking the two holes
out to shield the drive from metal shavings. Surface
should be cleaned of all metal shavings and other metal
coating material before installation.
11
Mounting
 Warning
DO NOT install, rewire, or remove this control
with input power applied. Doing so may cause
fire or serious injury. Make sure that you read
and understand the Safety Warnings before
attempting installation.
NOTE:
Horizontal mounting may require
derating the drive.
See your Minarik
representative for more information
• It is recommended that the drive be oriented with the
chassis vertical for best heat dissipation. Horizontal
mounting, while acceptable, may require some thermal
derating.
• Four 0.19-inch (5 mm) wide slots accept #8 pan head
screws. Fasten the heatsink chassis to the subplate.
• Drive components are sensitive to electrostatic fields.
Avoid direct contact with the circuit board. Hold the drive
by the chassis only.
12
• 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 the heat sources. Operate
the drive within the specified ambient operating
temperature range.
• Prevent loose connections by avoiding excessive
vibration of the drive.
• 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.
13
Wiring
 Warning
쇵
DO NOT install, rewire, or remove this control with
input 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. Opening any one
motor lead may damage the drive.
Wait at least one minute after power is removed from
drive before working on drive.
• Use 20 – 24 AWG wire for speed adjust potentiometer
wiring. Use 14 AWG wire for AC line (L1, L2) and motor
(U,V and W) wiring.
14
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 the
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.
15
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 controllers, must be separated
from power lines in the same manner as the logic I/O on
this drive.
Heat sinking
All VFDx4X04/VFD05-series drives are delivered with a
heat sink chassis. Ensure that there is adequate space
above and below the drive for proper convection air flow. A
small fan may be necessary for proper cooling in restricted
space applications.
16
Fusing
VFD series drives include AC power line fuses on the main
PC Board. Use fast-acting fuses rated for 250 VAC or
higher. See Table 1 for recommended line fuse sizes.
Table 1. Line Fusing Chart
1-Phase
Input
Drive
(VAC)
VFDx4X04-D230-PCM 115 / 230
VFD05-D230-PCM
115 / 230
Max
HP
1
1½
AC
Amps
In
14/7
20/10
AC Line
Fuse
Size (Amps)
15
20
17
Speed adjust potentiometer
(VFD05-D230-PCM Only)
Mount the speed adjust potentiometer through a 0.38 in.
(10 mm) hole with the hardware provided (Figure 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, U,
V, W).
MOUNT THROUGH A 0.38 IN. (10 MM) HOLE
CW
WIPER
W
NUT
STAR
WASHER
SPEED ADJUST
POTENTIOMETER
INSULATING DISK
PANEL
Figure 10. Speed Adjust Potentiometer
18
Connections
All power input and power output connections are made to
TB502.
 Warning
DO NOT connect this equipment with power
applied. Failure to heed this directive may result in
fire or 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.
Input AC Power connections
Connect the AC power input to TB502 L1 and L2 as shown
in Figures 11 and 12 (page 19). Connect an external
master stop switch. Install the switch between the external
AC power input as shown.
19
Figure 11. AC Line Connections for VFD05 and VFDP4X04
Figure 12. AC Line Connections for VFDA4X04 and VFDF4X04
20
Warning
Ꮨ
Do not connect 230 VAC line
input when the drive is set for
115 VAC input. This will result in severe damage to
the motor. and can lead to explosion and/or injury.
Connect AC Power input to L1 and L2 as shown in Figures
11 and 12 (page 19), depending on the model of drive
being usedbvg.
NOTE: The VFDx4X and VFD05 series drives are equipped
with a voltage-doubler feature, which converts a 115 VAC
input to a 230 VAC output, for use with 230V motors. The
drive output current rating remains the same for either AC
input voltage. Use caution when connecting this output.
If the input voltage is 115 VAC and the desired output
voltage is 230 VAC (voltage doubler mode), set jumpers
as shown in Figures 13 -15 (page 21).
If the input voltage is 230 VAC and the desired output
voltage is 230 VAC (no voltage doubler), set jumpers as
show in Figure 13 -15 (page 21).
Refer to Figures 8 and 9 (pages 8 and 9) for jumper
locations.
NOTE: The VFD series of drives covered in this manual are
meant to be used with 208/230 VAC motors only. DO NOT
use this series of drives with 115 VAC motors.
21
JMP501
115V

230V
Jumper pins1 & 2 for 115VAC
Jumper pins 2 & 3 for 230VAC
1
2
WARNING!
Using 230 VAC input in Doubler mode
will damage the drive!
115 = 115 VAC INPUT DOUBLER MODE
230 = 230 VAC INPUT MODE
3
Figure 13. Voltage Doubler Feature for VFDA4X04 and VFDF4X04
JMP501
JMP502
Jumper Pins 2 & 3 for 115 VAC input
Jumper Pins 1 & 2 for 115 VAC input
Jumper Pins 1 & 2 for 230 VAC input
Jumper Pins 2 & 3 for 230 VAC input
Figure 14. Voltage Doubler Feature for VFDP4X04
JMP502
JMP501
Jumper Pins 1 & 2 115 VAC input
Install JMP501 for 115 VAC only
Jumper Pins 2 & 3 for 230 VAC input
Figure 15. Voltage Doubler Feature for VFD05
22
Motor connections (all VFD-series controls)
Motor connections are made to TB502
Single-phase operation
For single-phase operation, connect the motor as shown
below in Figure 16. Ensure that the prewired capacitor and
its associated motor coil are connected to terminals U and
V as shown. This connection may be internal if using a 2wire motor. If the motor has three leads, you must make
this connection yourself.
To reverse a single phase permanent split capacitor motor,
connect the motor as shown in Figure 17 (page 23). The
motor cap must be removed from the circuit.
DO NOT use a direction
switch with this wetup
Figure 16. Single Phase Operation (pre-wired cap)
23
Figure 17. Single Phase Operation (Reversing)
Three-phase operation
Connect a three-phase motor to terminals U, V and W as
shown in Figure 18 below.
Figure 18. Three-phase Operation
24
Speed Adjust Potentiometer Connections
Set JMP504 for VDC input by jumpering pins 1 & 2. Set
JMP505 for 0-5VDC by jumpering pin column 1. Refer to
Figures 8 and 9 (pages 8 and 9) for Jumper Locations.
Connect a speed adjust potentiometer to terminals S1, S2
and S3. Make sure the potentiometer is connected so that
the motor speed will increase as the potentiometer is turned
clockwise. See Figure 19 below.
NOTE: These settings and connections are factory installed
on the VFDx4X04-D230-PCM drives.
10K OHM
SPEED ADJUST
POTENTIOMETER
CW
TB501
D
S3
S2
S1
E1
E2
Figure 19. Speed Adjust Potentiometer
Connections to TB501 for VFDx4X04
25
Signal and Optional Switch Connections
All signal and switch connections are made at TB501.
Terminal block names are identical for all VFDx4X04/VFD05 -D230-PCM series drives. Use 20 - 24 AWG
wire for speed adjust potentiometer and switch connections.
NOTE: The Enable/Disable and Direction switch are factory
installed on the VFDx4X04-D230-PCM drives.
ENABLE/DISABLE switch
Connect a single-pole, single-throw ENABLE/DISABLE
switch between the ENABLE (E2) and COMMON (E1)
terminals as shown. Open the switch to disable the drive
and coast or brake to a stop. Refer to (page 32) for
stopping method. Close the switch to accelerate to set
speed at a rate controlled by the ACCEL trimpot.
DIRECTION (D) switch
Connect a single-pole, single-throw DIRECTION switch
between the (D) and COMMON (E1) terminals as shown in
Figure 20 (page 26). Opening the switch will cause the
motor to rotate in the forward direction; closing the switch
will reverse motor rotation.
The drive will decelerate the motor to a stop, (at the DECEL
trimpot setting), before reversing, so there is no need to
wait for the motor to coast or brake to a stop before
changing direction. For faster reversing see Application
Notes (page 48).
26
D
S3 S2 S1 E1 E2
Figure 20. Signal and Optional Switch Connections for
VFDx4X04 and VFD05
Voltage or Current Follower
Drives can be configured to follow an isolated or a
grounded (non-isolated) voltage or current signal. To
configure the drive to follow a voltage or current signal,
connect the signal leads to the S1 and S2 terminals on
TB501 as shown in Figure 20 above. Ensure that the
following jumper terminals are properly set as shown in
Figure 21 (page 27).
27
JMP504 Input Type
Jumper pins 1 & 2 for Voltage follower or speed pot mode.
Jumper pins 2 & 3 for Current follower.
JMP505 Input Range Settings
Set jumper in position 1 for 0-5 VDC signal or speed pot input.
Set jumper in position 2 for 0-10 VDC signal or speed pot input.
Set jumper in position 3 for 4-20 mA signal. *
* The 4-20 mA ZERO SET potentiometer should be used
to calibrate the zero (or minimum) speed of the drive with
4mA applied to the input. For voltage inputs this pot
should be set to full CCW.
JMP504
JMP504
1
2
3
1 & 2 for Voltage or speed pot input
2 & 3 for Current
JMP505
JMP505
1
2
3
1 = 0 - 5 VDC or speed pot INPUT
2 = 0 - 10 VDC
3 = 4 - 20 mA
Figure 21. Jumper Settings--JMP504 and JMP505
28
Operation
 Warning
쇵
Dangerous voltages exist on the drive when it is
powered, and up to 60 seconds after power is
removed and the motor stops. BE ALERT. High
voltages can cause serious or fatal injury.
Do not change jumper settings with power applied.
Ensure that jumper settings are compatible with the
motor being controlled.
 Voltage Input Warning
쇵
DO NOT connect 230 VAC line input when the
drive is set for 115 VAC input. This will result in
severe damage to the motor and drive, and possible
explosion and/or injury.
29
Voltage Doubler
 Warning
DO NOT connect 230 VAC line input when drive is
set for 115 VAC input. This will result in severe
damage to the motor and drive, and possible
explosion or severe injury.
The VFD05-D230-PCM and VFDx4X04-D230-PCM series
drives are equipped with a unique voltage-doubling feature,
for use when 230 VAC input voltage is not available. This
feature converts a 115 VAC input to a 230 VAC output, for
use with 230V motors. The drive output current rating
remains the same for either AC input voltage.
Refer to Figure 13-15 (page 21) for connection information.
Use extreme caution when connecting this feature.
Incorrect use of this feature may result in fire and/or serious
injury.
NOTE: The VFD series of drives covered in this manual are
meant to be used with 208/230 VAC motors only. DO NOT
use this series of drives with 115 VAC motors.
30
Startup
 Warning
DO NOT change jumper settings with power
applied. Ensure that jumper settings are compatible
with the motor being controlled.
Before applying power, verify that no conductive
material is present on the printed circuit board.
1. Verify that no conductive material is present on the PCB.
2. Verify that the correct voltage is connected to the inputs
before applying power. DO NOT CONNECT 230 VAC
line voltage to a 115 VAC configured drive. Applying
power in this manner will damage the motor and drive.
3. Set the speed adjust potentiometer or reference signal
to zero (full CCW).
4. Set the DIRECTION switch (if installed) to the desired
direction. If no switch is installed, add or remove a
jumper across the (D) and (E1) terminals, as required.
5. Set the ENABLE/DISABLE switch (if installed) to
ENABLE, or short the ENABLE (E2) and (E1) terminals
on TB501.
6. Apply 115 or 230 VAC, 50/60 Hz, single-phase power to
the drive. The green POWER LED will come on after an
initial delay of 1 - 2 seconds. If the POWER LED does
not light, check the line fuses to ensure that they are
properly installed and not open.
31
7. If you attempt to startup and the yellow TQ LED comes
on, the control has entered torque limit mode. To avoid
this occurrence, you may:
a. increase the torque limit setting*, or
b. lengthen the acceleration time enough to
accommodate the starting torque needed by
adjusting the ACCEL trimpot.
* Do not set the torque limit setting above 150% of the motor’s
nameplate current rating.
To reverse motor direction:
To reverse the direction of motor shaft rotation while the
motor is running, set the DIRECTION switch to the opposite
position. If no DIRECTION switch is installed, open or short
the (DIR) and (E1) terminals on TB501, as required.
When a new direction is selected, there is no need to open
the enable input. The control will automatically decelerate
the motor to zero speed, reverse direction, and then
accelerate the motor back to the set speed. Acceleration
and deceleration rates are controlled by the ACCEL/DECEL
trimpot settings. If quicker reversing is needed refer to
applications notes section (page 45) for further detail.
NOTE: DO NOT use the DIRECTION switch if there is a
capacitor in the motor windings.
32
Starting and stopping methods
(factory set to COAST position)
To coast the motor to a stop
Insure that JMP506 is set to the COAST position as shown
in Figures 22 and 23 (page 33). Refer to Figure 8 and 9
(page 8 and 9) for Jumper Locations. To coast the motor to
a stop open the ENABLE/DISABLE switch, or remove the
jumper between ENABLE (E2) and COMMON (E1)
terminals of TB501. Refer to (page 25) for instructions on
switch installation.
To brake the motor to a stop
Insure that JMP506 is set to the BRAKE position as shown
in Figures 22 and 23 (page 33). Refer to Figure 8 and 9
(page 8 and 9) for Jumper Locations. Confirm BRAKE
CURRENT and BRAKE TIME potentiometers are calibrated
to a desired value. BREAK CURRENT is adjustable from
0-100% of rated output current. BRAKE TIME is adjustable
from 1 -12 seconds. To brake the motor, open the
ENABLE/DISABLE switch, or remove the jumper between
ENABLE (E2) and COMMON (E1) terminals of TB501.
Refer to (page 25) for instructions on switch installation.
33
1
2
3
JMP506 (on top board)
Jumper Pins 1 & 2 to Coast
Jumper Pins 2 & 3 to Brake
COAST
BRAKE
Figure 22. VFDA4X04 and VFDF4X04 Jumper Settings--JMP506
1
2
3
BRAKE
COAST
JMP506 (on top board)
Jumper Pins 1 & 2 to Brake
Jumper Pins 2 & 3 to Coast
Figure 23. VFDP4X04 and VFD05 Jumper Settings--JMP506
Thermal protection of the motor
The enable input can also act as a motor thermal protection
circuit for motors having a built-in thermal protector. These
thermal protectors are operated only by motor heat and
open the enable circuit when the motor reaches a
temperature capable of causing damage to the motor
winding.
34
Normally, these thermal procedures automatically close the
circuit when the motor has cooled to a safe temperature. In
operation, the drive can be disabled by opening the enable
switch or opening the thermal overload switch. See Figure
24 below.
ENABLE / DISABLE
SWITCH
CLOSE TO ENABLE
THERMAL
OVERLOAD
SWITCH
TB501
E2 (ENABLE)
E1 (COMMON)
Figure 24. Thermal Overload Switch with Optional
Enable / Disable Switch
VFDA4X & VFDF4X
RUN/JOG Switch
The VFDA4X/VFDF4X come with a factory supplied
RUN/JOG switch. To jog, the START/STOP switch must be
set to stop. Press the RUN/JOG pushbutton down to jog and
release to stop.
35
Line starting and line stopping
 Warning
Minarik strongly recommends the installation of a
master power switch in the voltage input line (see
Power and Fuse connections, page 12). The switch
contacts should be rated at a minimum of 200% of
motor nameplate current and 250 volts.
Line starting/line stopping (applying and removing AC
voltage input) may be configured to operate two different
ways by use of JMP503.
When JMP503 is set to the UV TRIP position as shown in
Figure 25 (page 36), the drive will stop and latch off when
an under voltage condition, (bus voltage drops below
200VDC), occurs. This can occur due to line sag, line
transients, or line disconnect. The drive may then be
restarted by cycling the ENABLE off then on, or waiting until
the DC bus drops to zero, (approximately 1 minute), at
which point the drive will restart upon reapplication of line
power. Refer to Figures 8 and 9 (pages 8 and 9) for
Jumper Locations.
36
When JMP503 is set to the RESTART position as shown in
Figure 25 below (factory set to UV trip), the drive will stop
when an under voltage condition, (bus voltage drops below
200 VDC), occurs. This can occur due to line sag, line
transients, or line disconnect. A timer, (1.5 seconds), is
started which allows an automatic restart if the bus voltage
has returned to proper operation potential. Refer to Figures
8 and 9 (pages 8 and 9) for Jumper Locations.
JMP503 (on bottom board)
Pins 1 & 2 to Trip
Pins 2 & 3 to Restart
JMP503
1
2
3
UV TRIP
RESTART
UV TRIP: Drive has a low voltage fault & must
be manually re-enabled or the bus voltage must
go to zero and then return to operation potential
to restart.
RESTART: Drive has a low voltage fault &
will momentarily stop then auto-restart
when input voltage returns to minimum level.
Figure 25. Jumper Settings--JMP503
37
Calibration
 Warning
쇵
Dangerous voltages exist on the drive when it is
powered, and up to 60 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.
The VFD series has ten user-adjustable trimpots. Each
drive is factory calibrated to its maximum horsepower
rating. Re-adjust the calibration trimpot settings to
accommodate lower horsepower motors. See Figures 26
and 27 (pages 38 and 39) for VFD series trimpot locations.
All adjustments increase with clockwise (CW) rotation and
decrease with counter-clockwise (CCW) rotation. Use a
non-metallic screwdriver for calibration. Each trimpot is
identified on the printed circuit board.
38
ZERO
SET
MIN
MAX
ACCEL
DECEL
SLIP
COMP
BOOST
BRAKE
CURRENT
BRAKE
TIME
TQ LIMIT
Figure 26. VFDA4X04 and VFDF4X04 Calibration Trimpot Locations
39
ZERO SET
JMP 504
1 2 3
MIN
TB 501
4mA
ZER O
SET
JMP 505
MAX
MIN
IC501
IL 501
T 501
MAX
JMP 503
U V TRI P
RESTART T
IL 504
DECEL
SLIP COMP
J501
Q 14
C501
SLIP COMP
BOOST
IL 503
Q 13
TORQUE
LIMIT
R89
D2 0
C 34
C35
R7 6
R75
Q 11
DECEL
BOOST
R88
D21
ACCEL
ACCEL
ENABLE
BRAKE
IL 501
IL 502
CO A ST
P O WE R FA U LT
JMP 506
C503
D1 9
JMP 504
INP U T S ELE CT
1-2 = VD C
2- 3 = m A
C 50 2
R 84
JMP 505
RAN G E S ELE CT
1 = 0 - 5 VD C
2 = 0 - 1 0 VD C
3 =4-2 0 mA
BRAKE
CURRENT
C 38
C 28
BRAKE
CURRENT
R 80
D1 8
TQ LIMIT
C504
BRAKE
TIME
BRAKE
TIME
Figure 27. VFDP4X04 and VFD05 Calibration Trimpot Locations
40
Calibration Procedure Setup for 60 Hz Motors:
1. Set JMP501 & JMP502** to appropriate input voltage
setting (115/230VAC). Refer to Figures 8 and 9 (pages
8 and 9) for Jumper Locations.
2. Set the ENABLE switch to the DISABLE (open) position.
If no switch is installed, remove the jumper between the
(E2) and (E1) terminals of TB501.
3. Set the DIRECTION switch to the FWD (open) position.
If no switch is installed, confirm that there is no jumper
between the (D) and (E1) terminals of TB501.
4. Set all trimpots except TQ LIMIT and MAX fully
counterclockwise (CCW).
5. Set the TQ LIMIT trimpot to maximum (full CW).
6. Set the MAX trimpot to the 50% position.
7. Set the speed adjust potentiometer or reference signal
to zero (full CCW):
8. Calibrate the trimmer pots as follows:
**JMP502 is not present on VFDA4X04/VFDF4X04 models.
MAXIMUM SPEED (MAX SPD)
Rotate the speed adjust potentiometer full CW or set the
reference signal to MAX. Using a hand-held tachometer or
analog frequency meter as a reference, adjust the MAX
trimpot until the desired maximum speed or frequency is
reached.
41
MINIMUM SPEED (MIN)
Rotate the speed adjust potentiometer CCW or set the
signal reference to a minimum. Adjust the MIN trimpot until
the motor has stopped (for zero speed setting), or until
desired minimum speed has been reached.
TORQUE LIMIT (TQ LIMIT)
 Warning
Although the TORQUE LIMIT trimpot can be set up
to 150% of the drive nameplate rating, continuous
operation beyond the drive nameplate rating may
cause damage to the motor and/or drive.
1. With no power applied to the drive, connect a (true RMS)
ammeter in series with one of the motor leads.
2. Set the TQ LIMIT trimpot to full CCW.
3. Carefully lock the motor shaft. Ensure that the motor is
firmly mounted.
4. Apply line power. The motor should be stopped.
5. Set the speed adjust potentiometer or reference signal to
maximum speed. The motor should remain stopped.
6. Slowly rotate the TQ LIMIT trimpot clockwise (CW)
until the ammeter reads 120% of maximum motor
current.
42
7. Set the speed adjust potentiometer or
reference signal to zero speed.
8. Remove power from the drive.
9. Remove the lock from the motor shaft.
10. Remove the ammeter in series with the
motor lead.
ACCELERATION (ACCEL)
1. Set the speed adjust potentiometer or reference
signal to zero and wait for the motor to come to a
stop (or minimum speed).
2. Set the speed adjust potentiometer or reference
signal to maximum speed (full CW) and note the
time the motor takes to accelerate to maximum
speed.
3. If the acceleration time differs from the desired time,
adjust the ACCEL trimpot until the desired time is
reached. Rotating the ACCEL trimpot CW
increases the acceleration time.
DECELERATION (DECEL)
1. Set the speed adjust potentiometer or reference
signal to maximum (full CW) and wait for the motor
to reach maximum speed.
43
2. Set the speed adjust potentiometer or reference
signal to minimum speed (full CCW) and note the
time the motor takes to decelerate to minimum
speed.
3. If the deceleration time differs from the desired time,
adjust the DECEL trimpot until the desired time is
reached. Rotating the DECEL pot CW increases
the deceleration time.
BOOST
The BOOST trimpot is used to increase motor torque at low
speeds. The minimum setting is sufficient for most
applications and does not need to be adjusted. If the motor
stalls or runs erratically at very low speeds (below 10 Hz),
the boost trimpot may need adjustment.
1. Run the motor at the lowest continuous frequency/speed
required.
2. Monitor the motor phase current (with a true RMS
meter) while very slowly turning the BOOST trimpot CW
until the motor operates properly, or 100% of the motor
nameplate current is reached.
NOTE: Use the absolute minimum amount of BOOST
necessary to achieve proper motor operation. Improper
use of the BOOST feature may cause motor and/or
drive overheating and failure. If proper motion
operation cannot be achieved with the above
procedure, please contact your Minarik representative.
44
SLIP COMPENSATION (SLIP COMP)
Slip compensation is used to minimize the normal speed
changes occurring in an induction motor from no load to full load
conditions.
1. Using the speed adjust potentiometer or reference
signal, run the motor at the desired RPM under a no
load condition. Measure the RPM with a tachometer.
2. Without changing the speed adjust potentiometer or
reference signal, apply a full load to the motor, and bring
the motor speed back up using the SLIP COMP pot to
the originally measured RPM.
3. These procedures, (1&2), may need to be repeated
several times to reach the desired accuracy required.**
**Wide speed range accuracy of the slip compensation
method depends heavily on motor slip vs. frequency
characteristics.
Calibration Procedure Conclusion
1. Set the speed adjust potentiometer or reference signal
to zero (full CCW).
2. Disable the drive by opening the ENABLE/DISABLE
switch or removing the jumper from TB501 (E2) and
(E1) terminals.
3. Remove power to the motor and drive. Calibration is
now complete.
45
Application Notes
Independent adjustable speeds with DIR switch
Replace the speed adjust potentiometer with two singlepole multi-position switches, and two or more
potentiometers in parallel, with a total parallel resistance of
10K ohms. Figure 28 below shows the connection of two
independent speed adjust potentiometers that can be
mounted at two separate operating stations.
TB501
E2
FORWARD
SPEED
20K OHM
E1
REVERSE
SPEED
S1
20K OHM
S2
S3
FORWARD
REVERSE
D (DIRECTION)
Figure 28. Independent Adjustable Speeds
46
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 single-pole, normally open,
momentary operated pushbutton for the JOG pushbutton.
Connect the RUN/JOG switch and JOG pushbutton to
terminal board TB501 as shown in Figure 29 below. The
motor stops when the RUN/JOG switch is set to JOG.
Press the JOG pushbutton to jog the motor. Return the
RUN/JOG switch to RUN for normal operation.
NORMALLY OPEN
RUN/JOG
PUSHBUTTON
RUN/JOG
SWITCH
JOG
TB501
(motor coasts to stop)
E2 (ENABLE)
RUN
E1 (COMMON)
S1
S2
S3
D
Figure 29. RUN/JOG Switch
47
Single speed potentiometer control of
multiple motors
 Warning
The combined current draw of all motors must not
exceed the current rating of the drive.
The VFD series of controls is capable of operating up to
eight 3-phase motors simultaneously. All motors must be of
the same type and must control similar loads. Connect
each motor as shown in Figure 30 below.
MOTOR
A
U
CW
V
MOTOR
B
W
S3
S2
S1
10K OHM
SPEED ADJUST
POTENTIOMETER
VFD SERIES
DRIVE
Figure 30. Single Speed Potentiometer Control of Multiple Motors
48
Quick Reversing
To reverse the direction of motor shaft rotation, install a
DPDT center off switch as shown in Figure 31 below. The
drive will stop the motor before reversing, so there is no
need to wait for the motor to coast to a stop before
changing direction. JMP506 must be set to brake. Refer to
Figures 8 and 9 (pages 8 and 9) for Jumper Locations.
TB501
E2 (ENABLE)
DPDT CENTER
OFF SWITCH
E1 (COMMON)
FWD
STOP
REV
S1
S2
S3
D
Figure 31. VFD Quick Reversing
49
Troubleshooting
 Warning
쇵
Dangerous voltages exist on the drive when it is
powered, and up to 60 seconds after power is
removed and the motor stops. When possible,
disconnect the voltage input from the drive while
troubleshooting. BE ALERT. High voltages can cause
serious or fatal injury.
Before troubleshooting
Perform the following steps before starting any procedure in
this section:
• Disconnect AC voltage input from the drive. Wait 60
seconds for power to discharge. The green POWER LED
will blink while power is discharging.
• Check the drive closely for damaged components.
• Check that no wire, chips, or other foreign material has
become lodged on the printed circuit board.
• Verify that every connection is correct and in good
condition.
50
• Verify that there are no short circuits or grounded
connections.
• Check that the drive’s rated phase current and RMS
voltage are consistent with the motor ratings.
For additional assistance, contact your local Minarik
distributor, or the factory direct by telephone at:
1-800-MINARIK (646-2745) or Fax: 1-800-394-6334
51
Diagnostic LEDs
Minarik VFD Series drives are equipped with diagnostic
LED’s to assist the user in troubleshooting and monitoring
equipment status while in use. Refer to Figures 32 and 33
(page 52 and 53) for diagnostic LED locations.
POWER LED
The green POWER LED is on when AC line voltage is
applied and the control’s low-voltage power supply is
operational.
ENABLE LED
The red ENABLE LED turns on whenever the inverter
output is enabled.
FAULT LED
The red FAULT LED blinks on and off when the drive output
is locked out or not ENABLED and any one of the following
fault conditions occur:
1. Overvoltage
• VFD 230AC controls: DC bus exceeds 400 VDC
2. Undervoltage
• VFD 230AC controls: DC bus drops below 200 VDC
3. Instantaneous Overcurrent Trip - Inverter output current has
exceeded safe levels (250%).
Note:
The FAULT condition must be reset using the ENABLE function of
the VFD (opening and closing the ENABLE input).
52
TORQUE (TQ) LIMIT LED
The yellow TQ LIMIT LED is on when the drive output
current exceeds the threshold set by the TQ LIMIT trimpot.
When the TQ LIMIT LED turns on, shut down the motor and
drive by disabling or removing power. Check the motor to
make sure it is not jammed or overloaded. The TQ LIMIT
trimpot may need to be recalibrated. See the Calibration
section (page 37) for information on calibrating the TQ
LIMIT trimpot.
C501
C502
D
S3
S2
S1
E1
E2
TB501
IC502
C503
J501
T502
T501
IC504
MAX
MIN
ENABLE
IL501
POWER
FAULT
IL503
TORQUE
LIMIT
Figure 32. VFDA4X04 and VFDF4X04 LED locations
53
C501
JMP504
123
TB501
4mA
ZERO
SET
JMP505
IL501
C502
IL504
ENABLE
IL501
POWER
IL502
FAULT
IL503
JMP501
TORQUE
LIMIT
Figure 33. VFD05 and VFDP4X04 LED locations
54
Problem
Internal line fuse blows
Internal line fuse does
not blow, but the motor
does not run
Possible
Cause
Suggested
Solution
1. Line fuses are the
wrong size.
1. Check that line
fuses are properly
sized for the motor
being used.
2. Motor or motor cable
is shorted to ground.
2. Check motor cable
and motor for
shorts.
3. Nuisance tripping
caused by a
combination of
ambient conditions
and high-current
spikes (i.e. reversing).
3. Add a blower to
cool the drive
components;
increase TQ LIMIT
settings (page 41).
1. Speed adjust
potentiometer or
voltage input signal is
set to zero speed.
1. Increase the speed
adjust
potentiometer
setting or voltage
input signal.
2. Speed adjust
potentiometer or
voltage input signal is
not properly
connected to drive
input; connections are
open.
2. Check connections
to input. Verify that
connections are not
open.
55
Problem
Internal line fuse does
not blow, but the motor
does not run (cont.)
Motor runs too slow or
too fast at set speed
Possible
Cause
Suggested
Solution
3. Drive is “tripped” off
or has gone into
thermal overload.
3. Disable, then reenable the drive.
4. Drive has been
disabled.
4. Ensure that
ENABLE (EN) and
COM terminals are
properly connected.
5. Drive is in current
limit.
5. Verify that motor is
not jammed.
Increase TQLIM
setting if it is set
too low (page 41).
6. Drive is not receiving
AC voltage input.
6. Apply AC line
voltage to L1 and
L2.
7. Motor is not
connected.
7. Connect motor to
drive outputs U, V
and W.
1. MAX SPD trimpot is
not calibrated
correctly.
1. Calibrate MAX SPD
trimpot (page 40).
56
Problem
Motor will not reach the
desired speed
Possible
Cause
Suggested
Solution
1. MAX SPD setting is
too low.
1. Increase MAX SPD
setting (page 41).
2. Nominal input voltage
may be too low for
motor
2. Compare motor
voltage to input
voltage; replace
motor if necessary
3. Motor is overloaded.
3. Check motor load.
Resize the motor or
drive if necessary.
Motor pulsates or surges
under load
1. Motor “bouncing” in
and out of torque limit.
1. Make sure motor is
not undersized for
load; adjust TQ LIM
setting CW (page
41).
Motor does not reverse
1. Defective DIRECTION
switch connection.
1. Check DIRECTION
switch connection.
2. Reversing circuit not
working properly.
2. Check reversing
circuit by shorting
TB501 (D) terminal
to (E1) terminal with
jumper wire.
3. Motor not wired
correctly for reverse
3. Check motor wiring
Review motor
connections section
57
Problem
TQ is unsatisfactory at
high speeds.
Possible
Cause
Suggested
Solution
1. TQ LIMIT set too low.
1. Check TQ LIM
setting (page 41).
2. Load may exceed
rating of motor/drive.
2. “Fix” load (i.e.,
straighten
mounting,
coupling, etc.); or
replace motor and
drive with motor
and drive rated for
higher horsepower.
3. Nominal input voltage
may be too low for
motor.
3. Compare motor
voltage to input
voltage. Replace
motor if necessary.
58
Optional Capacitor Kit (p/n: 202-0108)
In some applications, lowering carrier frequency reduces
switching losses and increases bearing life in some motors.
Minarik provides an optional capacitor kit for lowering the
carrier frequency.
The default carrier frequency on VFD controls is 16kHz.
Using one of the capacitors supplied in the kit, the carrier
frequency can be lowered to a range of 12kHz to 4kHz.
Note: Audible noise will increase when the carrier
frequency is lowered.
To lower the carrier frequency on all VFD controls, install
one of the following 2-pin capacitors on the board:
LABEL ON CAPACITOR
FREQUENCY
VALUE
3n3J
6n8
10n
33n
12kHz
10kHz
8kHz
4kHz
0.0033uF
0.0068uF
0.01uF
0.033uF
See Figures 34 and 35 for Capacitor locations and
installation instructions
59
Insert the 2-pins of the carrier frequency capacitor into the 2
socket holes (C503) located on board.
Cap Label
3n3 J100
TORQUE
LIMIT
JMP504
C503
INPUT SELECT
1-2 = VDC
2-3 = mA
JMP505
RANGE SELECT
1 = 0 - 5 VDC
2 = 0 - 10 VDC
3 = 4 - 20 mA
Figure 34. VFD05 and VFDP4X04 Carrier
frequency capacitor location
60
Insert the 2-pins of the carrier frequency capacitor into the 2
socket holes (C507) located on board.
Cap Label
ENABLE
3n3 J100
POWER
FAULT
C507
Figure 35. VFDA4X04 and VFDF4X04 Carrier
frequency capacitor location
61
Replacement Parts
Replacement parts are available from Minarik Drives and its
distributors for this drive series.
Table 2. Replacement Parts
Potentiometer Kit 202-0101
10K ohm, 5W Potentiometer
3/8-32 X 1/2 Nut
3/8IN Int. Tooth Lockwasher
Pot Insulating Washer
Non-insulated Female Connector
3 ea Insulated Female Connector
62
NOTES
63
NOTES
64
NOTES
Unconditional Warranty
A. Warranty
Minarik Drives warrants that its products will be free from defects in workmanship
and material for twelve (12) months or 3,000 hours, whichever comes first, from date
of manufacture thereof. Within this warranty period, Minarik Drives will repair or
replace, at its sole discretion, such products that are returned to Minarik
Drives,14300 De La Tour Drive, South Beloit, IL 61080 USA.
This warranty applies only to standard catalog products, and does not apply to
specials. Any returns for special controls will be evaluated on a case-by-case basis.
Minarik Drives 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 Minarik Drives sole obligation and exclude all
other warranties of merchantability for use, express or implied. Minarik Drives 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 breach of any of Minarik Drives 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 Minarik Drives by lawful
authority, Minarik Drives shall under no circumstances be liable for any
consequential damages, losses, or expense arising in connection with the use of, or
inability to use, Minarik Drives product for any purpose whatsoever.
An adjustment made under warranty does not void the warranty, nor does it imply an
extension of the original 12-month 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, Minarik Drives
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 Minarik Drives 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.
MINARIK DRIVES
14300 De La Tour Drive
South Beloit, IL 61080
Phone: (800) MINARIK or (815) 624-5959
Fax: (815) 624-6960
www.minarikdrives.com
Document number 250–0381, Revision 01
Printed in the U.S.A – 12/04
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