American Control Electronics VFD643-4 User Manual

TM
An ISO 9001:2008 Certified Company

Specifications

Line

Motor

Voltage Voltage
Model
(VAC) (VAC)
115
VFD643-4 0 - 230
230
AC Line Voltage ......................................................115/230 VAC ± 10%, 50/60 Hz, single phase
AC Motor Voltage .....................................................230 VAC, 50/60 Hz, single or three phase
AC Line Current with 115 VAC line ..................................................... approx. 4x motor current
AC Line Current with 230 VAC line ......................................................approx. 2x motor current
Overload Capability ............................................................................150% (1.5x) for 1 minute
Standard Carrier Frequency .............................................................................................16 kHz
Output Frequency Range ............................................................................................0 - 120 Hz
Adjustable Minimum Output Frequency Range ..........................................................0 - 30 Hz
Adjustable Maximum Output Frequency Range .....................................................30 - 120 Hz
Braking Current .......................................................................................0 - 100% rated output
Braking Time
........................................................................................................1 - 12 seconds
Accelera�on Time Range .....................................................................................1 - 12 seconds
Decelera�on Time Range .....................................................................................1 - 12 seconds
Analog Input Voltage Range ....................................................0 - 5 VDC, 0 - 10 VDC, 4 - 20 mA
Input Impedance (S1 to S2) ....................................................................................>100K ohms
Vibra�on (0 - 50 Hz) ............................................................................................0.5G maximum
(>50 Hz) ..............................................................................................0.1G maximum
Temperature Range (Maximum Surrounding Air) ...................................................10°C - 40°C
Weight ............................................................................................................................3.28 lbs

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.
VFD643-4
Variable Frequency AC Drive
READ ALL SAFETY WARNINGS BEFORE INSTALLING THIS EQUIPMENT
Continuous
Motor
• DO NOT INSTALL, REMOVE, OR REWIRE THIS EQUIPMENT WITH POWER APPLIED. Have a
Motor Current Horsepower
• qualified electrical technician install, adjust and service this equipment. Follow the Na�onal
(Amps) Range
• 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.
4.0 1/6 - 1
• 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.

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.
Open Chassis

Safety Warnings

Connections

POWER
LOGIC
14300 De La Tour Drive
South Beloit, IL 61080
Phone: (844) AMCNTRL
Fax: (800) 394-6334
www.americancontrolelectronics.com
Full manual available online
5.63 [143]
POWER
FWD
OFF
REV
7.20
[183] 6.35
SPEED
[161]
NEMA 4X
ADJUSTABLE SPEED
0.85 REVERSING
AC MOTOR CONTROL
[22]
0.73 [18.5]
CONDUIT HOLES
2 PLACES
4.56 [116]
2.12 [54]
2.20
[56]
3.40 [87]
ALL DIMENSIONS IN INCHES [MILLIMETERS]
10K POT
CW
DIRECTION
SWITCH
START/STOP
SWITCH
MOTOR
WINDINGS
115 / 230 VAC
LINE INPUT
0.19
[5]
BOTTOM PLATE
ENABLE SWITCH
(close to run)