Open Chassis
Variable Frequency AC Drive
14300 De La Tour Drive
South Beloit, IL 61080
Phone: (844) AMCNTRL
Fax: (800) 394-6334
www.americancontrolelectronics.com
VFD643-4
An ISO 9001:2008 Certified Company
TM
Full manual available online
Specifications
......................................................115/230 VAC ± 10%, 50/60 Hz, single phase
.....................................................230 VAC, 50/60 Hz, single or three phase
..................................................... approx. 4x motor current
......................................................approx. 2x motor current
............................................................................150% (1.5x) for 1 minute
.............................................................................................16 kHz
............................................................................................0 - 120 Hz
..........................................................0 - 30 Hz
.....................................................30 - 120 Hz
.......................................................................................0 - 100% rated output
........................................................................................................1 - 12 seconds
.....................................................................................1 - 12 seconds
.....................................................................................1 - 12 seconds
....................................................0 - 5 VDC, 0 - 10 VDC, 4 - 20 mA
....................................................................................>100K ohms
............................................................................................0.5G maximum
..............................................................................................0.1G maximum
...................................................10°C - 40°C
............................................................................................................................3.28 lbs
AC Line Voltage
AC Motor Voltage
AC Line Current
with 115 VAC line
AC Line Current
with 230 VAC line
Overload Capability
Standard Carrier Frequency
Output Frequency Range
Adjustable Minimum Output Frequency Range
Adjustable Maximum Output Frequency Range
Braking Current
Braking Time
Accelera�on Time Range
Decelera�on Time Range
Analog Input Voltage Range
Input Impedance (S1 to S2)
Vibra�on
(0 - 50 Hz)
(>50 Hz)
Temperature Range (Maximum Surrounding Air)
Weight
Motor
Horsepower
Range
4.0
Continuous
Motor Current
(Amps)
Motor
Voltage
(VAC)
Line
Voltage
(VAC)
Model
1/6 - 1
0 - 230
115
230
VFD643-4
Safety Warnings
READ ALL SAFETY WARNINGS BEFORE INSTALLING THIS EQUIPMENT
•
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 proper grounding, over-current
•
protec�on, thermal protec�on, and enclosure. Follow sound maintenance procedures.
•
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. Removing AC line power is the only acceptable
•
method for emergency stopping.
• Line star�ng and stopping (applying and removing AC line voltage) is recommended for infrequent
•
star�ng and stopping of a drive only. DC injec�on 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 destroy 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 enclosure. Grounding the
•
input will cause damage to the drive.
• 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. ACE 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.
ALL DIMENSIONS IN INCH
E
S [MILLIMETE
R
S]
POWER
SPEED
FWD
REV
OFF
ADJUSTABLE SPEED
REVERSING
AC MOTOR CONTROL
0
1
2
3
4
5 6 7
8
9
10
NEMA 4X
BOTTOM PLATE
0.73 [18.5]
CONDUIT HOLES
2 PLACES
7.20
[183] 6.35
[161]
0.85
[22]
5.63 [143]
0.19
[5]
4.56 [116]
2.12 [54]
2.20
[56]
3.40 [87]
Installation
Moun�ng
NEMA 4X cased drives come with two 0.73 inch (18.5 mm) conduit holes at the bo�om of the case.
The drives may be ver�cally wall mounted using the four 0.19 inch (5 mm) slo�ed holes on the
a�ached heat sink. For loads less than 5 amps, the drive may be bench mounted horizontally or
operated without moun�ng.
1. Install the moun�ng screws.
2. For access to the terminal strip, remove the six phillips screws on the front cover.
3. Remove the five phillips screws on the bo�om plate.
Do not remove the three screws securing the
3.
bo�om plate to the heat sink.
4. Set the POWER switch to the OFF posi�on before applying AC line voltage.
5. Install conduit hardware through the 0.73 inch (18.5 mm) knockout holes. Connect external wiring
5.
to the terminal block.
6. Place the front cover back into place. Avoid pinching any wires between the front cover and the
6.
heat sink.
7. Reinstall the 6 screws on the front cover.
The two shorter screws are for the two lower holes of the
7.
front cover.
Reinstall the 5 screws on the bo�om plate.
Wiring
Use 18 - 24 AWG wire for logic wiring. Use 14 - 16 AWG wire for AC line and motor wiring.
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.
Fusing
The drives provide on board fusing for the AC line (L1, L2). Fuses are fast ac�ng fuses rated for
15A at 250 VAC.
Connections
Line Input
Connect the AC line power leads to terminals L1 and L2. The FWD/OFF/REV switch on the front cover is not
an AC line power switch, it is a combina�on enable/direc�on switch. When the switch on the front cover is
set to the OFF posi�on, the drive is disabled but the circuit board is s�ll connected to the AC line. If a power
switch is desired, ACE recommends the use of a single-throw, double-pole master power switch. The switch
should be rated at a minimum of 125 VAC and 200% of motor current.
Motor
If using a three phase motor, connect the AC motor leads to terminals U, V, and W. If the motor does
not spin in the desired direc�on, power down the drive and swap any two of these connec�ons. If
using a single phase motor, connect the AC motor leads to terminals U and V. Refer to the
Opera�ons sec�on for possible wiring setups.
Speed Poten�ometer or Analog Input Signal
The speed poten�ometer on the front cover is pre-wired. To remotely install a poten�ometer, use a 10K ohm,
1/4 W poten�ometer. Connect the counter-clockwise end of the poten�ometer to S1, the wiper to S2, and the
clockwise end to S3. If the poten�ometer works inveresly of desired func�onality, (i.e. to increase motor speed,
you must turn the poten�ometer counterclockwise), power off the drive and swap the S1 and S3 connec�ons.
The drive may also follow a 0-5 VDC or 4-20 mA analog signal. Connect the signal common (nega�ve) to terminal
S1 and the signal reference (posi�ve) to terminal S2.
Direc�on Switch
The direc�on switch is pre-installed on the front cover. If a different direc�on switch is desired, wire a switch to
terminals E1 and DIR. When the connec�on is open, the motor will run in the forward direc�on. When the
connec�on is closed, the motor will run in reverse.
Enable
The enable switch is pre-installed on the front cover. If a diferent enable switch is desired, wire a switch to terminals
E1 and E2. When the connec�on is open, the motor will coast to minimum speed. When the switch is closed, the motor
will accelerate to set speed.
Do not use the enable for emergency stopping.
POWER
LOGIC
START/STOP
SWITCH
115 / 230 VAC
LINE INPUT
MOTOR
WINDINGS
ENABLE SWITCH
(close to run)
DIRECTION
SWITCH
10K POT
CW
