please check for the following after receiving the AC motor drive.
◎ Inspect the unit to insure it was not damaged during shipment.
◎ Make sure that the part number indicated on the nameplate corresponds
with the part number of your order.
Nameplate Information: Example of 1HP230V
AC Drive Model
MODEL :VFD007L21A
Input Spec.
:1PH/9.7A 3PH/5.1A 200-240V 50-60Hz
Output Spec.
OUTPUT :3PH 0-240V 4.2A 1.6kVA 1HP
Output Freq. Range
Freq. Range:1.0~400Hz
007L21A0T610001
DELTA ELECTRONICS, INC.
MADE IN XXXXX
Model Explanation
VFD 007 L 21 A
A: standard
D: PNP Mode
B: with EMI
E: PNP Mode with EMI Filter
Input voltage
VFD-L series
Applicable motor capacity
Variable Frequency Drive
Serial Number Explanation
007L21A0 T 6 10 001
Production number
Production week
Production year 2006
T: Taoyuan W: Wujiang
Production factory
230V 1-PHASE 1HP (0.75kW)
If there is any nameplate information not corresponding to your purchase
order or any problem, please contact your distributor.
230V IPHASE
Do not connect AC power to output
terminals (U,V,W).
Do not inspect components until LEDs
are turned off for at least 1min.
Read the user manual before operation.
10V A V I M 0 M 1 M 2 M 3 G N D
Basic Wiring Diagram
Users must connect wiring according to the circuit diagram shown below.
Please follow all National and State wiring codes, when wiring the VFD-L.
Figure 1 for models of VFD-L series
VFD002L11A, VFD002L11B, VFD002L21A, VFD002L21B, VFD004L11A,
VFD004L11B, VFD004L21A, VFD004L21B, VFD007L21A, VFD007L21B, VFD015L23A
Main Circuit Power
Factory default settings
Forward/Stop
Multi-function indication
output contacts
Reverse/Stop
120VAC/28VDC 3A
Factory default:
Fault Indication
Multi-step 1
Common Signal
Power supply for Potentiometer
Communication
Main circuit (power)
+10V 10mA(MAX)
Master Freq. setting
Control circuit terminals
Analog voltage
Shielded leads
Analog current
NOTE: Do not plug in a Modem or telephone line to the RS-485 communication port,
permanent damage may result. Terminals 1 & 2 are the power source for the
optional copy keypad and should not be used while using RS-485
communication.
*If the AC Drive model is VFD002L11A/B, VFD004L11A/B, VFD002L21B, VFD004L21B
or VFD007L21B, please use power terminals R/L1 and S/L2.
*If the AC Drive model is VFD002L21A, VFD004L21A or VFD007L21A, 1-phase/3 phase
power may be used on R/L1, S/L2, T/L3. When VFD002L21A/VFD004L21A or
VFD007L21A use 1-phase power, please select any two of the three input terminals
R/L1, S/L2, T/L3.
*If the AC Drive model is VFD015L23A, single phase power is not allowed.
Figure 2 for models of VFD-L series
VFD004L21D, VFD004L21E, VFD007L21D, VFD007L21E
Main Circuit Power
Power supply
Factory default settings
+15V 30mA(MAX)
Multi-function indication
Forward/Stop
output contacts
Reverse/Stop
120VAC/28VDC 3A
Factory default:
Fault Indication
Multi-step 1
Communication
Main circuit (power)
Master Freq. setting
Power supply
Analog voltage
+15V 30mA(MAX)
Control circuit terminals
Shielded leads
Analog current
NOTE: Do not plug in a Modem or telephone line to the RS-485 communication port,
permanent damage may result. Terminals 1 & 2 are the power source for the
optional copy keypad and should not be used while using RS-485
communication.
*If the AC Drive model is VFD004L21E, VFD007L21E, please use power terminals
R/L1 and S/L2.
*If the AC Drive model is VFD004L21D, VFD007L21D, 1-phase/3 phase power may be
used on R/L1, S/L2, T/L3. When VFD004L21D/VFD007L21D use 1-phase power, please
select any two of the three input terminals R/L1, S/L2, T/L3.
Wiring for NPN mode and PNP mode
NPN Mode for models:
VFD002L11A, VFD002L11B, VFD002L21A,
PNP Mode for models:
VFD002L21B, VFD004L11A, VFD004L11B,
VFD004L21D, VFD004L21E, VFD007L21D, VFD007L21E
VFD004L21A, VFD004L21B, VFD007L21A,
VFD007L21B, VFD015L23A
Multi-step 1
Multi-step 1
Digital Signal Common
*Don't apply the mains voltage directly
to above terminals.
*Don't apply the mains voltage directly
to above terminals.
Main circuit wiring
AC line input terminals
Single phase models input from R/L1, S/L2
R/L1 S/L2 T/L3
LED display
Display key
Confirmation key
Motor capacity
and input power
The signal selection
for AVI to input
communication
U/T1 V/T2 W/T3
Motor connections U/T1, V/T2, W/T3
Control circuit wiring
Figure 3 for models: VFD002L11A, VFD002L11B, VFD002L21A, VFD002L21B, VFD004L11A,
VFD004L11B, VFD004L21A, VFD004L21B, VFD007L21A, VFD007L21B, VFD015L23A
Wire Gauge:22-24AWG, Torque: 4Kgf-cm
RA RC +10V AVI M0 M1 M2 M3 GND
Figure 4 for models: VFD004L21D, VFD004L21E, VFD007L21D, VFD007L21E
Wire Gauge:22-24AWG, Torque: 4Kgf-cm
RA RC +15V AVI M0 M1 M2 M3 GND
Wiring Notes: PLEASE READ PRIOR TO INSTALLATION.
Do not connect the AC input to any of the U/T1, V/T2, W/T3
terminals, as it will damage the AC drive..
Ensure all screws are tightened to the proper torque rating.
During installation, follow all national and local electrical, construction,
and safety codes for the country the drive is to be installed in.
Ensure the appropriate protective devices (circuit breaker or fuses) are
connected between the power supply and AC drive.
Make sure that the leads are connected correctly and the AC drive is
properly grounded. (Ground resistance should not exceed 0.1Ω.)
Use ground leads that comply with AWG/MCM standards and keep
them as short as possible.
Multiple VFD-L units can be installed in one location. All the units should
be grounded directly to a common ground terminal. The VFD-L ground
terminals may also be connected in parallel, as shown in the figure
below. Ensure there are no ground loops.
When the AC drive output terminals U/T1, V/T2, and W/T3 are
connected to the motor terminals U, V, and W, respectively, the motor
will rotate counterclockwise (as viewed from the shaft ends of the motor)
when a forward operation command is received. To reverse the
direction of motor rotation, switch over any of the two motor leads.
Make sure that the power is capable of supplying the correct voltage
and required current to the AC drive.
Do not attach or remove wiring when power is applied to the AC drive.
Do not monitor the signals on the circuit board while the AC drive is in
Route the power and control wires separately, or orthogonal to each
If a filter is required for reducing EMI (Electro-Magnetic Interference),
install it as close as possible to AC drive. EMI can also be reduced by
lowering the Carrier Frequency.
If the AC drive is installed in the place where a load reactor is needed,
install the filter close to U/T1, V/T2, W/T3 side of AC drive. Do not use a
Capacitor or L-C Filter (Inductance-Capacitance) or R-C Filter
(Resistance-Capacitance).
When using a general GFCI (Ground Fault Circuit Interrupter), select a
current sensor with sensitivity of 200mA or above, and not less than
0.1-second operation time to avoid nuisance tripping. For the specific
GFCI of the AC motor drive, please select a current sensor with
sensitivity of 30mA or above.
Summary of Parameters
Group 0: User Parameters
The parameter may be set during operation.
Identity code of drive
Rated current display
Parameter reset
d10: Reset Parameters to Factory Setting
0-03 Start-up display of AC
d0: F (Frequency command)
d1: H (output frequency)
d2: U (user-defined unit)
d3: A (output current)
0-04 User-defined Unit
d0: Display User-Defined Unit (u)
d1: Display Counter Value (C)
d2: Display Process Operation (1=tt)
(Display the current speed's step and the
rest time for this step speed)
d3: Display DC-BUS voltage (U)
d4: Display output voltage (E)
0-05 User-defined
coefficient K
Software version
Password input
configuration
Group 1: Basic Parameters
Maximum setting Freq.
Maximum output voltage
Mid-point freq.
Mid-point voltage
Minimum output freq.
Minimum output voltage
Upper bound of freq.
Lower bound of freq.
1-09 Accel time 1 (Tacc1)
1-10 Decel time 1 (Tdec1)
1-11 Accel time 2
1-12 Decel time 2
1-13 JOG Accel time
1-14 JOG Decel time
1-15 JOG frequency
Auto-accel/decel
S-curve setting in
acceleration
S-curve setting in
deceleration
Group 2: Operation Method Parameters
Source of frequency
d0: Digital keypad
d1: 0 ~ 10V from AVI
d2: 4 ~ 20mA from AVI
d3: Controlled by V.R on drive
d4: RS-485 communication interface
d0: By digital keypad
d1: By external terminals, keypad STOP
d2: By external terminals, keypad
d3: By RS-485 communication interface, keypad
d4: By RS-485 communication interface, keypad
Stop method
d0: Ramp stop d1: Coast stop
Carrier freq.
d3 ~d10K Hz
d50.0 ~ d400Hz
d10.0 ~ d400Hz
d2.0 ~ d255V
d1.0 ~ d400Hz
d2.0 ~ d255V
d1.0 ~ d60.0Hz
d2.0 ~ d255V
d0.1 ~ d600 Sec
d0.1 ~ d600 Sec
d0.1 ~ d600 Sec
d0.1 ~ d600 Sec
d0.1 ~ d600 Sec
d0.0 ~ d600 Sec
d1.0Hz~d400Hz
d0: Linear Accel/Decel
d1: Auto accel, linear decel
d2: Linear accel, auto decel,
d3: Auto Accel/Decel
d4: Linear accel. Auto decel, stall
prevention during
deceleration
d5: Auto accel. Auto decel, stall
prevention during
deceleration
STOP enable
STOP disable
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