DIR
S3
S2
S1
COM
EN
10K OHM
SPEED ADJUST
POTENTIOMETER
CW
DIRECTION
SWITCH
ENABLE
SWITCH
The logic connec�ons on
TB501 are isolated up to
approximately 4 kV.
*Fusing L2 or L2-DBL
is NOT required if
using a 115 VAC line.
NOTE: DO NOT make
any connections to
terminal L2-DBL if using
a 230 VAC line.
L1
L2
L2-DBL
U/A2
V/A1
W
+BUS
TB502
J503
OFF
1
2
3
4
ON
MOTOR
0 - 115 VAC
0 - 230 VAC
FUSE*
FUSE
POWER
SWITCH
AC LINE
VOLTAGE
115 / 230 VAC
Speed Poten�ometer
Use a 10K ohm, 1/4 W poten�ometer for speed control. Connect the counter-clockwise end of the
poten�ometer to S1, wiper to S2, and the clockwise end to S3. If the poten�ometer works
inversely of desired func�onality, (i.e. to increase motor speed, you must turn the poten�ometer
counterclockwire), power off the drive and swap the S1 and S3 connec�ons.
Analog Input Signal Range
Instead of using a poten�ometer, the drive may be wired to follow an analog input signal. This input
signal can be in the form of voltage (0 ± 5, 0 ± 10 VDC) or current (4-20 mA). The built in isola�on
allows the the input signal to be grounded or ungrounded (floa�ng). Connect the signal common /
nega�ve (-) to S1 and the signal reference /posi�ve (+) to S2. Refer to the Startup sec�on for related
jumper se�ngs.
Enable
Short terminals EN and COM to accelerate the motor to set speed. Open the ENABLE terminals to coast
or brake the motor to zero speed. Refer to DIP Switch 3 in the Statup sec�on for jumper se�ngs. If no
ENABLE switch is desired, wire a jumper between terminals COM and EN.
Do not use the enable for emergency stopping
.
Direc�on
Short terminals DIR and COM to change the direc�on of the motor. If no direc�on switch is desired,
leave this connec�on open.
LOGIC (TOP BOARD)
AC Line Input
Connect the AC line voltage to terminals L1 and L2. If doubler mode is to be used (230 VAC output
with 115 VAC input), connect the AC line voltage to terminals L1 and L2-DBL. Do not make any
connec�ons to L2-DBL if using a 230 VAC line source.
Motor
Connect the motor leads to terminals U/A2, V/A1, and W. If the motor does not spin in the desired
direc�on, power down the drive and reverse any two of these three connec�ons.
POWER (BOTTOM BOARD)
Connections
Moun�ng
• Drive components are sensi�ve to electrosta�c discharge. Avoid direct contact with the circuit
•
board. Hold the drive by the plate only.
• Protect the drive from dirt, moisture, and accidental contact.
• Provide sufficient room for access to the terminals and calibra�on trim pots.
• Mount the drive away from heat sources. Operate the drive within the specified surrounding air
•
opera�ng temperature range.
• Prevent loose connec�ons by avoiding excessive vibra�on of the drive.
• Mount the drive with its board in either a horizontal or ver�cal plane. Six 0.17” (4 mm) holes in the
•
plate accept #8 pan head screws. If mounted horizontally, the drive must be de-rated to 2.5 amps.
• The plate should be earth grounded.
Wiring:
Use 16 - 18 AWG 75°C wire for AC line (L1, L2, L2-DBL) and motor (U/A2, V/A1, W) wiring. Use
18 - 24 AWG wire for logic wiring (COM, DIR, EN, S1, S2, S3). Follow NEC standards for wiring.
Tightening torque for power terminal TB502 on the bo�om board is 9 lb-in (1.0 N-m).
Tightening torque for logic terminals TB501 and TB502 on the top board is 1.77 lb-in (0.2 N-m).
Shielding Guidelines:
As a general rule, it is recommended to shield all conductors. If it is not prac�cal
to shield power conductors, it is recommended to shield all logic-level leads. If shielding of logic-level
leads is not prac�cal, 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 the drive, ground the shield at the
end away from the drive. Do not ground both ends of the shield.
Short Circuit Current Ra�ng (SCCR):
This drive is suitable for use on a circuit capable of delivering not
more than 5,000 rms Symmetrical Amperes, 115/230 volts maximum.
Branch Circuit Protec�on:
This product has integral solid state circuit protec�on, which does not
provide branch circuit protec�on. Branch circuit protec�on must be provided in accordance with the
Na�onal Electrical Code and any addi�onal local codes. The UL Lis�ng requires the use of Class J,
Class CC, or Class T fuses rated at a minimum of 230 VAC. It is recommended to use fuses rated for
200% of the maximum motor current, unless using the drive in doubler opera�on, in which case the
fuses should be rated for 400% of maximum motor current. Fuse the HOT leg of the AC line when
using 115 VAC and both lines when using 230 VAC.
Installation
ALL DIMENSIONS IN INCHES [MILLIMETERS]
TB502
L1
L2
L2-DBL
U/A2
V/A1
W
+BUS
-BUS
J503
OFF
1
2
3
4
ON
J501
J502
P9
P8
P7
P6
P5
P4
P3
P2
P1
7 9
8 10
3
1
5
4
2
6
0.75 [19]
2.25 [57]
2.25 [57]
6.00
[152]
0.75 [19]
3.87 [98]
4.25 [108]
0.19 [5]
2.25 [58]
0.19 [5]
Dimensions
TB501
TB502
•
DO NOT INSTALL, REMOVE, OR REWIRE THIS EQUIPMENT WITH POWER APPLIED.
Have a
•
qualified electrical technician install, adjust, and service this equipment. Follow the Na�onal
•
Electrical Code and all other applicable electrical and safety codes, including the provisions of the
•
Occupa�onal Safety and Health Act (OSHA), when installing equipment.
•
Circuit poten�als are at 115 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 adjus�ng the calibra�on trim pots. Use approved personal protec�on
•
equipment and insulated tools if working on this drive with power applied.
• Reduce the chance of an electrical fire, shock, or explosion by using proper grounding techniques,
•
over-current protec�on, thermal protec�on, and enclosure. Follow sound maintenance procedures.
•
Minarik Drives strongly recommends the installa�on of a master power switch in the line voltage
•
input.
The switch contacts should be rated for 250 VAC and 200% of motor nameplate current.
•
Removing AC line power is the only acceptable method for emergency stopping.
Do not use
•
DC injec�on braking, decelera�ng to minimum speed, or coas�ng to a stop for emergency stopping.
•
They may not stop a drive that is malfunc�oning.
• Line star�ng and stopping (applying and removing AC line voltage) is recommended for infrequent
•
star�ng and stopping of a drive only. Regenera�ve braking, decelera�ng to minimum speed, or
•
coas�ng to a stop is recommended for frequent starts and stops. Frequent star�ng and stopping can
•
produce high torque. This may cause damage to motors.
•
Do not disconnect any of the motor leads from the drive
unless power is removed or the drive is
•
disabled. Opening any one lead while the drive is running may damage the drive.
• Under no circumstances should power and logic level wires be bundled together.
• Be sure poten�ometer tabs do no make contact with the poten�ometer’s body. Grounding the
•
input will cause damage to the drive.
•
Only connect to terminal L2-DBL if using a 115 VAC line with a motor rated higher than 120 VAC.
• Cau�on should be taken when opera�ng fan-cooled motors at low speeds because their fans may
•
may not move sufficient air to properly cool the motor. Minarik Drives recommends “inverter-duty”
•
motors when the speed range is beyond 10:1.
•
This product does not have internal solid state motor overload protec�on.
It does not contain
•
speed-sensi�ve overload protec�on, thermal memory reten�on, or provisions to receive and act
•
upon signals from remote devices for over temperature protec�on. If motor protec�on is needed in
•
the end-use product, it needs to be provided by addi�onal equipment in accordance with NEC
•
standards.
READ ALL SAFETY WARNINGS BEFORE INSTALLING THIS EQUIPMENT
Safety Warnings
....................................................115 / 230
VAC
±
10%,
50/60
Hz,
single phase
....................................6.7 amps
..................................10.7 amps
....................................6.7 amps
..........................................115 or 230 VAC, 50/60 Hz, single or three phase
...............................................................................200% (2x) for 1 minute
..................................................................................1.6 or 16 kHz
............................................................................................0 - 120 Hz
...................................................................................................0 - 27 VDC
.....................................................................................0 - 5 seconds
.................................................................0.5 - 12 seconds
................................................................0.5 - 12 seconds
.....................................................0 ± 5 VDC, 0 ± 10 VDC, 4 - 20 mA
.......................................................................................>50K ohms
...................................................0.5G, 0.1G maximum
..................................................32°F - 104°F (0°C - 40°C)
.................................................................................................1.20 lbs (0.54 kilograms)
...............................................cULus Listed, UL 61800-5-1, File # E132235
AC Line
V
ol
t
age
AC Line Current
with 115 VAC line voltage with a 115V motor
AC Line Current
with 115 VAC line voltage with a 230V motor
AC Line Current
with 230 VAC line voltage with a 230V motor
AC Motor Voltage
Overload Capability
Standard Carrier Frequency
Output Frequency Range
DC Injec�on Voltage
DC Injec�on Voltage Time
Accelera�on Time Range
(0 - 60 Hz)
Decelera�on Time Range
(60 - 0 Hz)
Analog Input Signal Range
Input Impedance
(S1 to S2)
Maximum Vibra�on
(0 - 50 Hz, >50 Hz)
Surrounding Air Temperature Range
Weight
Safety Cer�fica�ons
* When mounted to allow upwards airflow across the plate.
*
De-rate to 2.5 amps when mounted in any other configura�on.
1/16 - 3/8
1/8 - 3/4
Motor
Horsepower
Range
3.0*
Continuous
Motor Current
(Amps)
115
230
Motor
Voltage
(VAC)
115
or
230
Line
Voltage
(VAC)
MDVF03-D230-PCM
Model
Specifications
Open Chassis Microprocessor-based
Variable Frequency Drive with Isolation
for Single and Three Phase AC Motors
MDVF03
An American Control Electronics Brand
