Minarik Drives VFD PCM SERIES Users Manual

USER’S MANUAL

VFD PCM SERIES

Variable-frequency

drives for 3-phase and

single-phase AC motors

VFD05-D230-PCM
VFDP4X04-D230-PCM
VFDA4X04-D230-PCM
VFDF4X04-D230-PCM
VFDS4X05-D230-PCM

Copyright © 2005 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

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.



SHOCKAVOID

OID

ON

TI

ii

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

iiiGeneral 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.

iv General Information

Figure 1. VFD Series Features & Benefits

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

VOLTAGE DOUBLER

DOUBLES THE OUTPUT

VOLTAGE TO THE AC

MOTOR WHEN 115 IS APPLIED

ADJUSTABLE
CALIBRATION

TRIMPOTS

DECEL

ACCEL

MIN

MAX

BOOST

SLIP COMP

TQ LIMIT

ZERO SET

BRAKE
TIME

BRAKE

CURRENT

v

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

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.



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.



Important Information

vi

Contents

Safety Warnings i

General Information ii

Important Information v

Specifications 1

Dimensions 2

Layouts 6

Jumper Locations 9

Installation 11

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Shielding guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Heat sinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Speed adjust potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Input AC Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Motor connections (all VFD-series controls) . . . . . . . . . . . . . . . . . . . . . . . .23

Speed Adjust Potentiometer Connections . . . . . . . . . . . . . . . . . . . . . . . . . .25

Signal and Optional Switch Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Voltage or Current Follower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Operation 29

Voltage Doubler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

To reverse motor direction: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

Starting and stopping methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

To coast the motor to a stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

To brake the motor to a stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Thermal protection of the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

VFDA4X & VFDF4X RUN/JOG Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Line starting and stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

viiContents

Calibration 38

Calibration Procedure Setup for 60 Hz Motors: . . . . . . . . . . . . . . . . . . . . . . . .41

MAXIMUM SPEED (MAX SPD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

MINIMUM SPEED (MIN SPD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

TORQUE LIMIT (TQ LIMIT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

ACCELERATION (ACCEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

DECELERATION (DECEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

BOOST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

SLIP COMPENSATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Calibration Procedure Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Application Notes 46

Independent adjustable speeds with DIR switch . . . . . . . . . . . . . . . . . . . . . . .46

RUN/JOG switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Single speed potentiometer control of multiple motors . . . . . . . . . . . . . . . . . . .48

Quick Reversing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Troubleshooting 50

Before troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

POWER LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

ENABLE LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

FAULT LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

TQ LIMIT LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

Optional C510 Capacitor Kit (p/n: 202-0108) . . . . . . . . . . . . . . . . . . . . . . . . . .59

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Unconditional Warranty Inside Back Cover

Tables

Table 1. Line Fusing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Table 2. Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

viii

Illustrations

Figure 1. VFD Series Features & Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv

Figure 2. VFDA4X04 and VFDF4X04 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Figure 3. VFDP4X04 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Figure 4. VFDS4X05 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Figure 5. VFD05 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 6. VFDA4X04 and VFDF4X04 Circuit Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 7. VFDP4X04 Circuit Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 8. VFDS4X05 and VFD05 Circuit Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 9. VFDA4X04 and VFDF4X04 Jumper Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 10. VFD05 and VFDP4X04 Jumper Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 11. Speed Adjust Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Figure 12. AC Line Connections for VFD05, VFDS4X and VFDP4X04 . . . . . . . . . . . . . . . . . . .20

Figure 13. AC Line Connections for VFDA4X04 and VFDF4X04 . . . . . . . . . . . . . . . . . . . . . . .20

Figure 14. Voltage Doubler Feature for VFDA4X04 and VFDF4X04 . . . . . . . . . . . . . . . . . . . . .22

Figure 15. Voltage Doubler Feature for VFDP4X04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Figure 16. Voltage Doubler Feature for VFD05 and VFDS4X . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 17. Motor Connections-Single Phase Operation (pre-wired cap) . . . . . . . . . . . . . . . . . .23

Figure 18. Motor Connections -Single Phase Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Figure 19. Motor Connections -Three Phase Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Figure 20. Speed Adjust Potentiometer Connections to TB501 . . . . . . . . . . . . . . . . . . . . . . . . . .25

Figure 21. Signal and Optional Switch Connections for VFDx4X04 and VFD05 . . . . . . . . . . . .27

Figure 22. Jumper Settings-JMP504 and JMP505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Figure 23. VFDA4X04 and VFDF4X04 Jumper Settings-JMP506 . . . . . . . . . . . . . . . . . . . . . . .34

Figure 24. VFDP4X04, VFDS4X and VFD05 Jumper Settings-JMP506 . . . . . . . . . . . . . . . . . .34

Figure 25. Thermal Overload Switch with Optional Enable / Disable Switch . . . . . . . . . . . . . . .35

Figure 26. Jumper Settings--JMP503 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Figure 27. VFDA4X04 and VFDF4X04 Calibration Trimpot Layout . . . . . . . . . . . . . . . . . . . . . .39

Figure 28. VFDP4X04, VFDS4X and VFD05 Calibration Trimpot Layout . . . . . . . . . . . . . . . . . .40

Figure 29. Independent Adjustable Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Figure 30. RUN/JOG Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Figure 31. Single Speed Potentiometer Control of Multiple Motors . . . . . . . . . . . . . . . . . . . . . .48

Figure 32. VFD Quick Reversing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Figure 33. VFDA4X04 and VFDF4X04 Diagnostic LED location . . . . . . . . . . . . . . . . . . . . . . . .53

Figure 34. VFD05 and VFDP4X04 Diagnostic LED location . . . . . . . . . . . . . . . . . . . . . . . . . . .54

Figure 35. VFD05, VFDS4X and VFDP4X04 Carrier frequency capacitor location . . . . . . . . . .60

Figure 36. VFDA4X04 and VFDF4X04 Carrier frequency capacitor location . . . . . . . . . . . . . . .61

1

Specifications

1-Phase 1 or 3-Phase Max Continuous AC

Input Output Max Output Amps

Drive (VAC) (VAC) HP Current (AC) † In
VFDP4X04-D230-PCM *115 / 230 230 1 4.0 14/7
VFDA4X04-D230-PCM *115 / 230 230 1 4.0 14/7
VFDF4X04-D230-PCM *115 / 230 230 1 4.0 14/7

VFDS4X05-D230-PCM *115 / 230 230 1½ 5.0 20/10
VFD05-D230-PCM *115 / 230 230 1½ 5.0 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 115/230 VAC ± 10%, 50/60 Hz single phase

Standard Carrier Frequency 16 KHz

Output Frequency Range 0 – 120 Hz

Maximum Output Frequency Range 30 – 120 Hz

Minimum Output Frequency Range 0 – 30 Hz

Acceleration Time Range 1 – 12 seconds

Deceleration Time Range 1 – 12 seconds

Analog Input Voltage Range 0 – 5VDC,0-10VDC,4-20mA**

Input Impedance, S1 to S2 ~ 100K ohms

Braking Current 0-100% rated output

Braking Time 1 – 12 seconds

Vibration 0.5G max (20 – 50 Hz)

0.1G max (> 50 Hz)

Weight 1.2 lb

Ambient Operating Temperature Range 10° – 40° C

** Isolation is standard, and allows for non-isolated speed input, enable and direction switch inputs to be used.

2

Figure 2. VFDA4X04-D230-PCM and VFDF4X04-D230-PCM Dimensions

Dimensions

ALL DIMENSIONS IN INCHES [MILLIMETERS]

Forward

Reverse

8.125 [206.38]

8.875 [225.42]

Run

Start

Jog

Stop

9.500 [241.3]

2.5 [63.5]
5 [127]

1.5 [38.1] 2 [50.8]

.250 [6.35] W x .375 [9.53] L SLOT

0.313 [7.95]

.688 [17.48]

CONDUIT
KNOCKOUT
.875 [22.23] 2 PLACES

4.625 [117.48]

3.250 [82.55]

.250 [6.35]

5.625 [142.88]

3

]

88

]

.625[143

]

R

D

F

E

0

]

0

]

]

S

S

]

]

0

1

2

8

9

1

0

Figure 3. VFDP4X04-D230-PCM Dimensions

POWE

F

.1
[5

7.200 [ 183 ]

PEE

6.350[161

ADJUSTABLE SPEED

REVERSING

0.89

[22.6]

0.73[18.5

NDUIT HOLE

2 PLACE

AC MOTOR CONTROL

BOTTOM PLAT

4.56[116

2.12[53.8

2.2

55.9

.4

86.4

ALL DIMENSIONS IN INCHES [MILLIMETERS]

4

Figure 4. VFDS4X05-D230-PCM Dimensions

ALL DIMENSIONS IN INCHES [MILLIMETERS]

6.90 [175]

6.30 [160]

1.40 [36]

OFF

ON

10.20 [259]

9.80 [249]

FOUR (4) EACH MOUNTING SLOTS,

POWER

REVERSE

6.3 [160] x 7.0 [178]

TRIP

RESET

NEMA 4X

ADJUSTABLE SPEED

REVERSING

AC MOTOR CONTROL

ON CENTERS

SPEED

FORWARD

5.50 [140]

4.78 [121]

1.45 [37]

2.30 [58]

0.12 [3]

1.50 [38]

1.50 [38]

THREE 0.88 [22] KNOCKOUTS

Figure 5. VFD05-D230-PCM Dimensions

5.625 [143]

5

7.200 [183]

6.350 [161]

C501

4mA

ZERO

SET

IL501

JMP503

UV TRIP
RESTART

IL504

ENABLE

BRAKE
COAST

FAULTPOWER

JMP506

J501

Q14

C501

Q13

R88

R89

D20

D21

C34

C35

R76

R75

Q11

D19

R84

FU5

C28

C38

R80

D18

0.850 [22]

JMP501

FU502

C502

INSTALL JUMPER

FOR 115VAC

BR501

C508

SCR501

SCR502

JMP502

115 VAC

230 VAC

L1 L2 U V W

ALL DIMENSIONS IN INCHES [MILLIMETERS]

Maximum Height (C501 & C502): 3.30 [84]

T501IC501

IL502IL501

C503

C502

JMP504

1 2 3

TB501

JMP505

ACCEL

DECEL

COMP

BOOST

IL503

TORQUE

LIMIT

JMP504
INPUT SELECT
1-2 = VDC
2-3 = mA

JMP505
RANGE SELECT
1 = 0 - 5 VDC
2 = 0 - 10 VDC
3 = 4 - 20 mA

BRAKE

CURRENT

C504

BRAKE

TIME

TB502

MIN

0.188 [5]

MAX

SLIP

6

Figure 6. VFDA4X04 and VFDF4X04-D230-PCM Circuit Board Layout

501

505

3

C503

E

T

T

E

UT

UT

T

O

T

P

T

E

501

C504

4

T

R

501IL50

C502

T

503MP506

1

8
0
5C

5V230V

U502

U501

501

C501

502

2

502

Layouts

I

1

TB

MP504

1 2

MP

T

I

50

POWE

MP501:SELECT INPUT TYP
1& 2 = CURRENT INPU
2& 3 = VOLTAGE INPU

IL504

IL

2

FAUL

1 2 3

ZER

E

I

JMP502: SELECT RANG
1 = 0 - 5 VDC INP
2 = 0 - 10 VDC INP
3 = 4 - 20 mA INPU

AST

R

CURREN

T

RESTAR

I

LIP

M

TORQU

MP

IC1

11

MP

TB

V W L1 L

F

F

7

Figure 7. VFDP4X04-D230-PCM Circuit Board Layout

U5

U50

5

C

30

C

505

O

T

P

OOST

503

UT S

CT

C

A

505

CT

C

C

A

C50

50

T

503

P

ST

506

0

C34
C34

C35
C3

R76
R76

9

C

2

R8

C
8

C38

R80
R8

8

5

30

1

ZER

E

V TRI

1

IL504

A

FAUL

14

1

13

2

11

1

4

2

1

MP

2

MP

1

11

MP501

MP502

VA
1

R501

R502

R501

F

VA

2

2

F

2

TB501

T501I

IL

2IL501

50

MP504

MP

ECEL

LI

B

IL

MP504

INP

ELE

-2 = VD

2-3 = m

MP

ANGE SELE

= 0 - 5 VD

2 = 0 - 10 VD

= 4 - 20 m

4

TB502

8

Figure 8. VFD05-D230-PCM Circuit Board Layout

JMP501

FU502

INSTALL JUMPER

FOR 115VAC

C508

SCR501

SCR502

JMP502

115 VAC

230 VAC

C501

4mA

ZERO

SET

IL501

JMP503

UV TRIP
RESTART

R80

BRAKE
COAST

Q14

R88

R89

D21

Q11

IL504

ENABLE

FAULTPOWER

C501

Q13

D20

C34

C35

R76

R75

D19

R84

C28

C38

D18

C502

JMP506

J501

BR501

FU5

L1 L2 U V W

T501IC501

IL502IL501

C503

C502

JMP504

1 2 3

TB501

JMP505

MIN

MAX

ACCEL

DECEL

SLIP

COMP

BOOST

IL503

TORQUE

LIMIT

JMP504
INPUT SELECT
1-2 = VDC
2-3 = mA

JMP505
RANGE SELECT
1 = 0 - 5 VDC
2 = 0 - 10 VDC
3 = 4 - 20 mA

BRAKE

CURRENT

C504

BRAKE

TIME

TB502

9

Figure 9. VFDA4X04 and VFDF4X04 Jumper Locations

501

505

3

3

C503

&

C

A

E

UT

UT

O

T

P

T

E

501

C504

4

TPOWER

501IL50

C50

T

503MP506

ST

1

1

805C

5V230VFU502

U50

501

1

502

2

2

Jumper Locations

1

JMP504

TB

MP504

1 2

MP

T

50

I

1 2

I

IL504

IL

2

FAUL

ZER

E

IC50

MP504:SELECT INPUT

1

2 = VD

2& 3 = m

JMP505: SELECT RANG
1 = 0 - 5 VDC INP
2 = 0 - 10 VDC INP
3 = 4 - 20 mA INPUT

RREN

I

2

T

LIP

M

TORQU

JMP505

JMP506

JMP501

A

11

MP

TB50

F

1

V W L1 L

RESTAR

MP

R

IC1

JMP503

10

Figure 10. VFDP4X04, VFDS4X and VFD05 Jumper Locations

JMP504

JMP503

JMP506

JMP501

(GENERAL LOCATION)

JMP502

JMP501

FU502

C501

C502

BR501

C508

SCR501

SCR502

JMP502

115 VAC

230 VAC

L1 L2 U V W

JMP504

1 2 3

TB501

4mA

ZERO

SET

IL501

JMP503

UV TRIP
RESTART

IL504

ENABLE

BRAKE
COAST

JMP506

J501

UV TRIP

Q14

C501

Q13

R88

R89

D20

D21

C34

C35

R76

R75

Q11

D19

FU5

R84

C28

R80

D18

C38

FAULTPOWER

C503

T501IC501

IL502IL501

JMP504
INPUT SELECT
1-2 = VDC
2-3 = mA

JMP505

C502

RANGE SELECT
1 = 0 - 5 VDC
2 = 0 - 10 VDC
3 = 4 - 20 mA

CURRENT

C504

TB502

JMP505

ACCEL

DECEL

COMP

BOOST

IL503

TORQUE

LIMIT

BRAKE

BRAKE

TIME

MIN

MAX

SLIP

JMP505

11

Installation

Warning

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.



쇵

• 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.

12

• 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.

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



13

• 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.

14

Wiring

• 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.

Warning

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.



쇵

15

Shielding guidelines

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.

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.



16

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. Minarik Drives recommends mounting
the drive vertically.

17

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 AC AC Line

Input Max Amps Fuse

Drive (VAC) HP In Size (Amps)

VFDx4X04-D230-PCM 115 / 230 1 14/7 15

VFD05-D230-PCM 115 / 230 1½ 20/10 20

VFDS4X05-D230-PCM 115 / 230 1½ 20/10 20

18

Mount the speed adjust potentiometer through a 0.38 in.
(10 mm) hole with the hardware provided (Figure 11). 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).

Speed adjust potentiometer
(VFD05-D230-PCM Only)

JUST

R

SK

R

R

UT

E

Figure 11. Speed Adjust Potentiometer

UNT THROUGH A 0.38 IN. (10 MM) HOL

W

N

TA

WASHE

INSULATING DI

PEED AD

POTENTIOMETE

19

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 20
Amps and 250 volts.



Input AC Power connections

Connect the AC power input to TB502 L1 and L2 as shown
in Figures 12 and 13 (page 20). Connect an external
master stop switch. Install the switch in series of the AC
power input as shown. The factory installed switches on the
VFD05, VFDP4X, VFDA4X, and VFDF4X series. Do not
remove the AC line power from the drive.

Connections

All power input and power output connections are made to
TB502.

20

Figure 12. AC Line Connections for VFD05, VFDS4X and VFDP4X04

Figure 13. AC Line Connections for VFDA4X04 and VFDF4X04

21

Connect AC Power input to L1 and L2 as shown in Figures
12 and 13 (page 20), depending on the model of drive
being used.

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 14 -16 (page 22).

If the input voltage is 230 VAC and the desired output
voltage is 230 VAC (no voltage doubler), set jumpers as
show in Figure 14 -16 (page 22).

Refer to Figures 9 and 10 (pages 9 and 10) 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.

Warning

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.

Ꮨ

22

Figure 14. Voltage Doubler Feature for VFDA4X04 and VFDF4X04

Figure 15. Voltage Doubler Feature for VFDP4X04

C

C

E

3

501

5V230V

e

!

Figure 16. Voltage Doubler Feature for VFD05 and VFDS4X

JMP502

MP

11

Jumper pins1 & 2 for 115VA
Jumperpins 2 & 3 for 230VA

1 2

WARNING!

Using 230 VAC input in Doubler mod
will damage the drive

115 = 115 VAC INPUT DOUBLER MOD
230 = 230 VAC INPUT MODE

JMP501

Jumper Pins 2 & 3 for 115 VAC input
Jumper Pins 1 & 2 for 230 VAC input

Jumper Pins 1 & 2 for 115 VAC input
Jumper Pins 2 & 3 for 230 VAC input

JMP501

Install JMP501 for 115 VAC only

23

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 17. 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 18 (page 24). The
motor cap must be removed from the circuit.

Figure 17. Single Phase Operation (pre-wired cap)

DO NOT use a direction
switch with this wetup

24

Three-phase operation

Connect a three-phase motor to terminals U, V and W as
shown in Figure 19 below.

Figure 19. Three-phase Operation

Figure 18. Single Phase Operation (Reversing)

25

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 9 and 10 (pages 9 and 10) 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 20 below.

NOTE: These settings and connections are factory installed
on the VFDx4X drives.

Figure 20. Speed Adjust Potentiometer Connections to TB501

JUST

R

10K OHM

PEED AD

POTENTIOMETE

TB501

W

D

S3

S2 S1 E1

E2

26

DIRECTION (D) switch

Connect a single-pole, single-throw DIRECTION switch
between the (D) and COMMON (E1) terminals as shown in
Figure 21 (page 27). Opening the switch will cause the
motor to rotate in the forward direction; closing the switch
will reverse motor rotation. The DIRECTION input is
isolated.

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 49).

Signal and Optional Switch Connections

All signal and switch connections are made at TB501.
Terminal block names are identical for all VFDx4X/VFD05­D230-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 VFDx4X 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 33 for stopping
method. Close the switch to accelerate to set speed at a
rate controlled by the ACCEL trimpot. The ENABLE input is
isolated.

27

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 21 above. Ensure that the
following jumper terminals are properly set as shown in
Figure 22 (page 28).

D S3 S2 S1 E1 E

2

Figure 21. Signal and Optional Switch Connections for
VFDx4X and VFD05

28

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.

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.

Figure 22. Jumper Settings--JMP504 and JMP505

505

t

t

UT

UT

UT

3

3

505

MP504

MP504

2

& 2 for Voltage Inpu

2 & 3 for Current Inpu

MP

MP

2

= 0 - 5 VDC INP

2 = 0 - 10 VDC INP

= 4 - 20 mA INP

29

Operation

Warning

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.



쇵

Voltage Input Warning

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.



쇵

30

Voltage Doubler

The VFD05-D230-PCM and VFDx4X 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 14-16 (page 22) 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.

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.



31

Startup

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.

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.



32

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 49 for further detail.

NOTE: DO NOT use the DIRECTION switch if there is a
capacitor in the motor windings.

* Do not set the torque limit setting above 150% of the motor’s

nameplate current rating.

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.

33

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 23 and 24 (page 34). Refer to Figure 9 and 10
(page 9 and 10) 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 26) 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 23 and 24 (page 34). Refer to Figure 9 and 10
(page 9 and 10) 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 26) for instructions on switch installation.

34

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.

Figure 24. VFDP4X04, VFDS4X05 and VFD05 Jumper Settings--JMP506

Figure 23. VFDA4X04 and VFDF4X04 Jumper Settings--JMP506

ST

1

3

2

JMP506 (on top board)
Jumper Pins 1 & 2 to Coast
Jumper Pins 2 & 3 to Brake

AST BRAKE

1

2

A

3

JMP506 (on top board)
Jumper Pins 1 & 2 to Brake
Jumper Pins 2 & 3 to Coast

35

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
25 below.

)

)

E

CH

E

D

CH

501

Figure 25. 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.

ENABLE / DISABL

WIT

LOSE TO ENABL

VERLOA

WIT

TB

E2 (ENABLE

E1 (COMMON

36

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 13). The switch

contacts should be rated at a minimum of 20 Amps
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 26 (page 37), 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 9 and 10 (pages 9 and 10) for
Jumper Locations.

37

When JMP503 is set to the RESTART position as shown in
Figure 26 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. There is a 1.5 second restart
delay after the bus voltage returns to normal. Refer to
Figures 9 and 10 (pages 9 and 10) for Jumper Locations.

503

p

t

t

t

l

g

&

t

.

T

Figure 26. Jumper Settings--JMP503

2

3

MP

JMP503 (on bottom board)
Pins 1 & 2 to Tri
Pins 2 & 3 to Restar

V TRIP
ESTAR

UV TRIP: Drive has a low voltage fault & mus
be manually re-enabled or the bus voltage mus

o to zero and then return to operation potentia

to restart.

RESTART: Drive has a low volta
will momentarily stop then auto-restar
when input voltage returns to minimum level

e fault

38

Calibration

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 27
and 28 (pages 39 and 40) 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.

Warning

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.



쇵

39

Figure 27. VFDA4X04 and VFDF4X04 Calibration Trimpot Locations

501

505

3

C503

E

T

T

E

UT

UT

T

O

T

P

T

E

501

C504

4

T

R

501IL50

C502

T

503MP506

1

1

8
0
5C

30VFU502

U501MP501

C501

502

2

502

MIN

TQ LIMIT

BOOST

ACCEL

BRAKE
TIME

ZERO SET

MAX

DECEL

SLIP

COMP

BRAKE

CURRENT

1

I

115V2

T

TB

TB

MP504

MP

MP501:SELECT INPUT TYP

I

1& 2 = CURRENT INPU
2& 3 = VOLTAGE INPU

IL504

50

IL

2

POWE

FAUL

V W L1 L

1 2

1 2 3

F

ZER

I

JMP502: SELECT RANG
1 = 0 - 5 VDC INP
2 = 0 - 10 VDC INP
3 = 4 - 20 mA INPU

AST

E

R

CURREN

T

RESTAR

I

LIP

M

TORQU

MP

IC1

40

Figure 28. VFDP4X04, VFDS4X05 and VFD05 Calibration Trimpot Locations

01

505

A

C

505

CT

C

A

01

504

P

C
5

3

C

1

6

R
5

9

48

C
8

C
0

8

8

ZERO SET

MP 504

1 2

TB501

m

ZER

ET

IL5

MP

IC501

MP

V TRI

IL

IL

AST

FA

P

WE

506

14

13

D2

3
4

R

1

7

7

D1

R

3

2

R

8

D1

T5

IL

L

INP U T SELECT
1-2 = VD
2-

RANGESELE

05

1 =
2 = 0 - 1 0 VD

ACCEL

DECEL

SLIP COMP

BOOST

IL

TORQUE

MP

= m

MP

-

= 4 - 20 m

CURRENT

BRAKE

TIME

MP

VD

MIN

MAX

ACCEL

DECEL

SLIP COMP

BOOST

TQ LIMIT

BRAKE
CURRENT

BRAKE
TIME

41

Calibration Procedure Setup for 60 Hz Motors:

1. Set JMP501 & JMP502** to appropriate input voltage

setting (115/230VAC). Refer to Figures 9 and 10 (pages

9 and 10) 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)

Rotate the speed adjust potentiometer full CW or set the
reference signal to maximum. 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.

42

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. The MAX may
need to be readjusted after calibration of the MIN.

TORQUE LIMIT (TQ LIMIT)

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.

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.



MINIMUM SPEED (MIN)

43

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.

44

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.

45

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.

46

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 29 below shows the connection of two
independent speed adjust potentiometers that can be
mounted at two separate operating stations.

)

D

SE

501

SE

D

D

D

M

Figure 29. Independent Adjustable Speeds

TB

FORWAR

PEE

20K OHM

REVER

PEE

20K OH

FORWAR

REVER

D (DIRECTION

47

RUN/JOG switch

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. Set JMP506
to either Coast or Brake depending on how the motor
should stop.

Connect the RUN/JOG switch and JOG pushbutton to
terminal board TB501 as shown in Figure 30 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.

Figure 30. RUN/JOG Switch

NORMALLY OPEN

RUN/JOG

PUSHBUTTON

RUN

JOG

RUN/JOG

SWITCH

TB501

E2 (ENABLE)

E1 (COMMON)

S1

S2

S3

D

48

Single speed potentiometer control of
multiple motors

Figure 31. Single Speed Potentiometer Control of Multiple Motors

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 31 below.

Warning

The combined current draw of all motors must not
exceed the current rating of the drive.



MOTOR

B

CW

10K OHM

SPEED ADJUST

POTENTIOMETER

S3

S2

S1

MOTOR

A

UVW

BVFD SERIES

DRIVE

49

Quick Reversing

)

)

R

CH

OP

501

To reverse the direction of motor shaft rotation, install a
DPDT center off switch as shown in Figure 32 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 9 and 10 (pages 9 and 10) for Jumper Locations.

Figure 32. VFD Quick Reversing

TB

E2 (ENABLE

DPDT CENTE

FF SWIT

T

E1 (COMMON

50

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.

Warning

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.



쇵

Troubleshooting

51

• 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: [phone]

52

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).

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 33 and 34
(page 53 and 54) for diagnostic LED locations.

53

Figure 33. VFDA4X04 and VFDF4X04 LED locations

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 38) for information on calibrating the TQ
LIMIT trimpot.

501

C
3

E

503

501

C504

T

RIL501

C50

50

2

B

50

T

I

POWE

FAUL

T

2

IL

TORQU

I

2

54

Figure 34. VFD05, VFDS4X05 and VFDP4X04 LED locations

501

501

504

3

505

501

O

T

E

503

504

501

TPOWER

MP

1 2

B

ZER

E

IL

2

IL

MP

IL502IL

FAUL

IL

MP

TORQU

55

1. Check that line
fuses are properly
sized for the motor
being used.

2. Check motor cable
and motor for
shorts.

3. Add a blower to
cool the drive
components;
increase TQ LIMIT
settings (page 42).

1. Increase the speed
adjust
potentiometer
setting or voltage
input signal.

2. Check connections
to input. Verify that
connections are not
open.

Internal line fuse blows

Internal line fuse does
not blow, but the motor
does not run

1. Line fuses are the
wrong size.

2. Motor or motor cable
is shorted to ground.

3. Nuisance tripping
caused by a
combination of
ambient conditions
and high-current
spikes (i.e. reversing).

1. Speed adjust
potentiometer or
voltage input signal is
set to zero speed.

2. Speed adjust
potentiometer or
voltage input signal is
not properly
connected to drive
input; connections are
open.

Problem Possible

Cause

Suggested

Solution

56

3. Disable, then re­enable the drive.

4. Ensure that
ENABLE (EN) and
COM terminals are
properly connected.

5. Verify that motor is
not jammed.
Increase TQLIM
setting if it is set
too low (page 42).

6. Apply AC line
voltage to L1 and
L2.

7. Connect motor to
drive outputs U, V
and W.

1. Calibrate MAX SPD
trimpot (page 41).

Internal line fuse does
not blow, but the motor
does not run (cont.)

Motor runs too slow or
too fast at set speed

3. Drive is “tripped” off
or has gone into
thermal overload.

4. Drive has been

disabled.

5. Drive is in current

limit.

6. Drive is not receiving

AC voltage input.

7. Motor is not

connected.

1. MAX SPD trimpot is

not calibrated
correctly.

Problem Possible

Cause

Suggested

Solution

57

1. Increase MAX SPD
setting (page 42).

2. Compare motor
voltage to input
voltage; replace
motor if necessary

3. Check motor load.
Resize the motor or
drive if necessary.

1. Make sure motor is
not undersized for
load; adjust TQ LIM
setting CW (page

42).

1. Check DIRECTION
switch connection.

2. Check reversing
circuit by shorting
TB501 (D) terminal
to (E1) terminal with
jumper wire.

3. Check motor wiring

Review motor
connections section

Motor will not reach the
desired speed

Motor pulsates or surges
under load

Motor does not reverse

1. MAX SPD setting is
too low.

2. Nominal input voltage

may be too low for
motor

3. Motor is overloaded.

1. Motor “bouncing” in
and out of torque limit.

1. Defective DIRECTION
switch connection.

2. Reversing circuit not
working properly.

3. Motor not wired
correctly for reverse

Problem Possible

Cause

Suggested

Solution

58

1. Check TQ LIM
setting (page 42).

2. “Fix” load (i.e.,
straighten
mounting,
coupling, etc.); or
replace motor and
drive with motor
and drive rated for
higher horsepower.

3. Compare motor
voltage to input
voltage. Replace
motor if necessary.

TQ is unsatisfactory at
high speeds.

1. TQ LIMIT set too low.

2. Load may exceed
rating of motor/drive.

3. Nominal input voltage
may be too low for
motor.

Problem Possible

Cause

Suggested

Solution

59

Optional Capacitor Kit (p/n: 202-0108)

LABEL ON CAPACITOR FREQUENCY VALUE

3n3J 12kHz 0.0033uF

6n8 10kHz 0.0068uF
10n 8kHz 0.01uF
33n 4kHz 0.033uF

See Figures 35 and 36 for Capacitor locations and
installation instructions

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:

60

Figure 35. VFD05, VFDS4X05 and VFDP4X04 Carrier

frequency capacitor location

UT S

CT

C

A

505

CT

C

C

A

l

Insert the 2-pins of the carrier frequency capacitor into the 2
socket holes (C503) located on board.

Cap Labe

3n3 J100

TORQUE

MP504

INP

ELE

1-2 = VD

2-3 = m

MP

RANGE SELE

1 = 0 - 5 VD

2 = 0 - 10 VD

= 4 - 20 m

61

Figure 36. VFDA4X04 and VFDF4X04 Carrier

frequency capacitor location

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

62

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
3 ea Female Connector

63

NOTES

64

NOTES

65

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

www.minarikdrives.com

14300 De La Tour Drive

South Beloit, IL 61080

Fax: [phone]

Phone: (800) MINARIK or [phone]

Document number 250–0381, Revision 2

Printed in the U.S.A – December 2005