LS ELECTRIC L7C Series User manual

L7C Series AC Servo Drive
Quick Start Guide


This QuickStart Guide is designed to get an L7C servo system installed and running
quickly. This AutomationDirect Guide is a supplement to the LS Electric L7C User Manual.
This Guide does not replace the manufacturer’s User Manual. For advanced features
or options required by your application, you may still need to refer to the User Manual.
Download and reference both this QuickStart Guide and the L7C User Manual when
commissioning an L7C servo system.
A note on Part Numbers: LS Electric servo parts sold by AutomationDirect have part
numbers that end with a “-AD”. This suffix signifies special packaging and labeling for
AutomationDirect. All the LS servo products with the “-AD” function and behave exactly
the same as the standard LS Electric parts. Please note that when reading the LS electric
User Manual or using the Drive CM software, the “-AD” will NOT appear in any part
numbers.
Example:
AutomationDirect sells a 400W drive with part number L7CA004U-AD. All references to
the 400W drive in the LS Electric User Manual and Drive CM software will always show
L7CA004U.

L7C Series AC Servo Drives Quick Start Guide
Page 2 of 60L7C Servo Drives Quick Start Guide – 1st Ed. Rev A, 11/29/2021

L7C Series Servo System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Quick Start Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
What you’ll need: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
First Time Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
L7C Servo Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
APMC Servo Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Basic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
System Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pre-made Motor Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General Wiring Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Main Power Connection Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
I/O Connection Wiring Diagram with Default Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
I/O Wiring and Option Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
LED Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Drive CM Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
AutomationDirect Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Using the Drive CM Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Digital Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Digital Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
I/O Connection - Analog Torque Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
I/O Connection - Analog Velocity Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Index Position Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Indexing Position Mode using the Setup Wizard for Simple Motion Commissioning . . . . . . . . . . . . . 29
Pulse Input Position Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Pulse Input Position Mode Using the Setup Wizard for Simple Motion Commissioning . . . . . . . . . . . 38
Velocity Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Velocity Mode (Speed Command) using the Setup Wizard for Simple Motion Commissioning . . . . . . . 45
Torque Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Torque Mode Using the Setup Wizard for Simple Motion Commissioning. . . . . . . . . . . . . . . . . . . 53

L7C Series AC Servo Drives Quick Start Guide
Page 3 of 60L7C Servo Drives Quick Start Guide – 1st Ed. Rev A, 11/29/2021


WARNING: INstAll both the seRvo dRIve ANd the seRvo motoR befoRe peRfoRmING ANy WIRING.
WARNING: befoRe WIRING oR INspectING, tuRN off the poWeR, WAIt 15 mINutes, mAke suRe the
chARGe lAmp Is off, ANd check the voltAGe.
WARNING: eNsuRe thIs pRoduct Is coRRectly GRouNded. All GRouNdING ANd cIRcuIt pRotectIoN
methods must comply WIth All locAl stANdARds/ReGulAtIoNs ANd the NAtIoNAl electRIcAl
stANdARd (RefeR to NfpA 70: NAtIoNAl electRIcAl code, 202 ed.)
WARNING: doNot chANGe the motoR oR dRIve WIRING WhIle poWeR Is oN.
WARNING: oNly quAlIfIed ANd tRAINed techNIcIANs mAy peRfoRm WIRING oN thIs pRoduct.
WARNING: doNot opeRAte the seRvo system WIth Wet hANds.
WARNING: doNot opeN the seRvo dRIve coveR duRING opeRAtIoN.
WARNING: doNot opeRAte the seRvo system WIth the seRvo dRIve coveR Removed.
WARNING: doNot touch the heAt sINk of the seRvo dRIve WheN It Is coNNected to poWeR ANd
opeRAtING thIs compoNeNt Gets veRy hot ANd WIll scAld.
cAutIoN: the INstAllAtIoN locAtIoN must be fRee of vApoR ANd coRRosIve oR flAmmAble GAs.
cAutIoN: WheN WIRING, do Not coNNect the thRee-phAse poWeR supply to the motoR uvW
coNNectoRs. INcoRRect WIRING mAy cAuse dAmAGe to the seRvo dRIve.
cAutIoN: doNot dIsAssemble the seRvo dRIve.
cAutIoN: veRIfy the emeRGeNcy stop cAN be ActIvAted befoRe the seRvo dRIve Is coNNected to
poWeR ANd put INto opeRAtIoN.
For additional warnings and precautions, please see pages ii through vi of the L7CA User Manual.

L7C Series AC Servo Drives Quick Start Guide
Page 4 of 60L7C Servo Drives Quick Start Guide – 1st Ed. Rev A, 11/29/2021


The L7C Servo and AMPC motors should be installed under the environmental conditions detailed
below. Exceeding these conditions risks damage to the equipment.

  
Operating Temperature 0–50°C
Install a cooling fan on the control panel for
ventilation and to maintain the temperature within the
required range.
Operating Humidity 80% relative humidity or below
Moisture developed inside the drive due to ice
formation or condensation during a prolonged period
of inactivity may damage the drive. If the drive has
been inactive for a prolonged period remove all
moisture before operating the drive.
External Vibration Vibration acceleration 4.9 m/s2
(5G) or lower
Excessive vibration can cause malfunctions and
reduces the lifespan of the drive.
Ambient Conditions
• Do not expose the drive to direct sunlight.
• Do not expose the drive to corrosive or combustible gases.
• Do not expose the drive to oil or dust.
• Ensure that the drive receives sufficient ventilation even if installed in a confined place.

  
Operating Temperature 0–40°CIf motor temperature exceeds 40°C, use forced air
cooling to keep the motor temperature within spec.
Operating Humidity 80% relative humidity or below Do not operate the motors in an environment with
steam.
External Vibration Vibration acceleration 19.6 m/s2
(2.5 G) or lower on X and Y axes
Excessive vibrations reduce the lifespan of the motor
bearings.

Comply with the spacing standard below when installing drives with the control panel:
 
More
than
10mm
More
than
10mm
More
than
40mm
More
than
40mm
More
than
10mm
More
than
10mm
More
than
100mm
More
than
40mm
More
than
10mm

L7C Series AC Servo Drives Quick Start Guide
Page 5 of 60L7C Servo Drives Quick Start Guide – 1st Ed. Rev A, 11/29/2021

To verify your servo components and motor/drive wiring as quickly as possible, please follow the steps
below. These basic instructions will quickly get the motor spinning (verifying that parts and power
wiring are correct).
The rest of this quick start guide contains detailed information on how to properly set up your system
and configure the drive for your specific application. .

• Servo Drive
• Servo Motor
• Motor Power Cable
• Encoder Power Cable
• Brake Power Cable (for brake-equipped motors)
• Drive CM software (download here) installed on a Windows PC
• A USB A to USB mini-B cable (such as SV2-PGM-USB15)


 
AEnsure Input Power wiring is connected to L1, L2, and Ground. Refer to “Main Power Connection Wiring”
on page 14.
BEnsure 24VDC power and I/O signals are connected. At the very least, make sure the E-Stop circuit is
connected. Refer to “I/O Connection Wiring Diagram with Default Functions” on page 15
C
Ensure the Motor Encoder cable is connected. Do not simply plug the connector into the motor. Use the
captive screws to ensure the connector is secure. Intermittent encoder connection can wreak havoc with
the system.
D
Ensure the Motor Brake cable is connected (if using a brake motor). If practical, wire the brake directly to
24VDC during initial system testing. This eliminates any question of brake wiring functioning properly.
Brake testing can be verified after initial drive testing.
E
Leave the motor power cable disconnected until initial drive setup and testing are complete to prevent
unwanted motion. Later, the motor will be wired and tested. Do not connect a load to the motor shaft
until testing is completed.


 
A Turn on 24VDC power to the Drive I/O terminal and brake (if using a brake motor).
B Turn on main 230VAC Input power to the Drive Input Terminal at L1 and L2.
C The drive LED display will show the drive’s status and Warning or Alarm codes if present.

L7C Series AC Servo Drives Quick Start Guide
Page 6 of 60L7C Servo Drives Quick Start Guide – 1st Ed. Rev A, 11/29/2021


 
AUsing a standard USB A to USB mini-B cable (such as SV2-PGM-USB15, MOSAIC-CSU, etc.), connect the
PC to the Drive.
B Start Drive CM software.
C
Select  and press the  button. The software should begin to communicate
with the drive. A green flashing square should appear in the bottom right corner of the screen indicating
comms traffic.
Push to
connect
After connecting, icon
will change to this. Push
to disconnect


 
A In the Quick Setup window (left side of screen), click .
B
In the USB Connection window, choose  and click  to read parameters from the drive.
If the  radio button is not available and greyed out, disconnect the software from the drive and
reconnect by toggling the  button (see 3C above). Then click on 
again. This should restart the Setup Wizard and enable the button.
C
Follow the steps in the Setup Wizard to define your application.
1) For initial setup and system testing, allow the Setup Wizard to choose the default selections. After
completing this hardware test/verification, you can go through the rest of this guide and refer to the
User Manual if you want to customize your configuration.
2) After stepping through the Setup Wizard, select .
3) After writing to the drive is complete, make sure to cycle power to the drive (allowing the capacitors
to drain). A quick way to power cycle the CPU only is to click the  button in the upper
right toolbar. Many settings in the Setup Wizard only take affect after a power cycle.


 
A Restart the drive and establish communications again.
B
Go to “Fault\Servo Alarm History” and press the  button. Correct any errors that are causing alarms
to display on this page. Correction actions and information can be found in the User Manual or by
selecting “Fault\Alarm List.”
C
After fixing any issues, click on  and verify the alarms have been corrected.

L7C Series AC Servo Drives Quick Start Guide
Page 7 of 60L7C Servo Drives Quick Start Guide – 1st Ed. Rev A, 11/29/2021


 
A Remove power from the drive.
BEnsure that there is nothing attached to the motor shaft. Initial motion testing should always be done
with the motor uncoupled.
C Connect the motor power cable and re-apply power to the drive.
D Reconnect the software to the drive (see Step 3C).
EClick on the  icon
F
Enter a nominal speed, acceleration, and deceleration (a value of 200 for each setting is a good starting
point).
If a value is red, that means the value in the drive is different than the value in the software. Click in that
field and press  to send the updated value to the drive.
GPress  to enable the drive from the software. The drive’s LED should read  (servo is in run
mode).
HPress  or  to jog the motor. Once the motor jogs, you have verified the power wiring,
servo drive, motor, and motor cables are connected properly.


 
ADetermine whether you want to run the system in Internal Index, Velocity, Torque, or High Speed Pulse
Input mode.
B
For Index Mode, see “Index Position Mode” on page 29.
For Pulse Mode, see “Pulse Input Position Mode” on page 38.
For Velocity Mode, see “Velocity Mode” on page 45.
For Torque Mode, see “Torque Mode” on page 53.
C Once operating mode is set, system quick setup is complete.

L7C Series AC Servo Drives Quick Start Guide
Page 8 of 60L7C Servo Drives Quick Start Guide – 1st Ed. Rev A, 11/29/2021

Ensure your servo motor and drive match capacity.

Part Number Explanation
The three digit number in the middle of the drive part number
determines the power of the drive. Note that the “-AD” simply
represents special packaging for AutomationDirect. These are
standard LS Electric Parts.
• LC7AU-AD
• LC7AU-AD
The value 004 represents a 400W drive. The value 010
represents a 1000W (or 1kW) drive.
Use LC7004U-AD with 100, 200, and 400 W motors.
Use LC7010U-AD with 750 and 1000 W motors.

 
1 Display
2 Mode Switch
3 Operation Switch (Up/Down)
4 Main Power Terminal (L1, L2)
5 External Regenerative Resistor Terminals (B+, B)
6 Servo Motor Connecting Terminal (U,V,W)
7Ground (separate terminals for incoming ground
and motor cable ground)
8 Setup Switch
9 USB Connector (for software config only)
10 Control Signal Connector CN1 (I/O)
11 Encoder Connector CN2 (ENCODER)

Part Number Explanation
The meaning of the motor part number can be deciphered by looking at several of the digits in the
middle. Note that the “-AD” simply represents special packaging for AutomationDirect. These are
standard LS Electric Parts.
APMC-FxLyyAYK(2)-AD
• X = the frame size:
• B = 62mm square (80mm bolt circle)
• C = 80mm square (105mm bolt circle)
• YY = power in hundreds of watts
• (2) = If present after AYK, represents a motor with
built-in brake. No (2) = no brake.
Sha
Frame
Housing
Encoder
Connecon
Power
Connecon
2-Pin Brake Connec�on
(brake motors only)

L7C Series AC Servo Drives Quick Start Guide
Page 9 of 60L7C Servo Drives Quick Start Guide – 1st Ed. Rev A, 11/29/2021
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Perform periodic inspections to maintain your equipment, as well as inspections before operation of
the servo and motor.
 

Periodically check to confirm the screws are securely tightened. This includes the screws in
the servo drive, the connection screws between the motor shaft and the machine, and the
connection screws between the terminal block and machine.
Prevent oil, water, metallic particles, and other foreign matter from entering the control box
or ventilation equipment. Protect the servo drive from any drill cuttings.
If the control box is installed in a location where dust or harmful gas are present, ensure the
dust or harmful gas cannot enter the control box.
Make sure to wire encoders and other devices in the proper sequence to avoid sudden
unintended acceleration or damage to the motor.


To avoid electric shock, connect the ground terminal of the servo drive to the ground
terminal of the control box. If wiring must be added or modified, wait at least 10 minutes
after disconnecting the servo drive from the power supply or discharge the electricity with a
discharge device.
Isolate the wires at the wiring terminal.
Make sure the wiring is correct to avoid damage or any abnormal operation.
Check for and remove any electrically conductive objects, including metal sheet and screws,
or flammable objects inside or near the servo drive.
Make sure the emergency stop switch is OFF.
To ensure the electromagnetic brake works, make sure the stop and circuit breaker functions
are working properly.
Reduce the electromagnetic interference if there is electromagnetic interference with the
peripheral devices.
Make sure the external voltage level of the servo drive is correct.


The encoder cable should be protected from excessive stress - make sure the cable is not
worn or stretched.
Contact AutomationDirect if the servo motor vibrates or makes unusual noise during
operation.
Make sure the parameter settings are correct. Different machines have different
characteristics. Adjust the parameters according to the characteristics of each machine.
Reset the parameters when the servo drive is in the Servo OFF status to avoid possible
malfunction.
If there is no contact noise or other abnormal noise when the relay is operating, contact
AutomationDirect.
Contact AutomationDirect if the power indicator or LED display does not function properly.

L7C Series AC Servo Drives Quick Start Guide
Page 10 of 60L7C Servo Drives Quick Start Guide – 1st Ed. Rev A, 11/29/2021
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
Motor connections utilize premade cables available in normal flex or robotic flex specifications. Cables
are applicable for any L7C drive and motor size 100W–1kW (brake cables are only applicable for brake
motors). They are available in lengths of 3m, 5m, 10m, and 20m.

1
2
3
FG
12
3
FG
Item Phase Pin No.
LEAD
WIRE
U 1
V 2
W 3
FG FG 4
<Front Direction> <Rear Direction>
APCS-PxyyLSC
Motor Side Connector Drive Side Connector
    
APCS-PN03LSC-AD
N
3m [9.8 ft]
18AWG
LS Electric power
cable, for use with
FBL/FCL series motors
APCS-PN05LSC-AD 5m [16.4 ft]
APCS-PN10LSC-AD 10m [32.8 ft]
APCS-PN20LSC-AD 20m [65.6 ft]
APCS-PF03LSC-AD
Y
3m [9.8 ft] LS Electric flexing
power cable, for use
with FBL/FCL series
motors
APCS-PF05LSC-AD 5m [16.4 ft]
APCS-PF10LSC-AD 10m [32.8 ft]
APCS-PF20LSC-AD 20m [65.6 ft]

1 7 8 14
Pin
No.
Enco der
Signal
1 -
2 -
3 MA
4 /MA
5 SLO
6 /SLO
7 0V
Pin
No.
Enco der
Signal
8 -
9 -
10 -
11 -
12 -
13 -
14 +5V
Plate SHIELD
Pin
No.
Enco der
Signal
Pin
No.
Enco der
Signal
1 MA 6 /MA
2 SLO 7 /SLO
3 - 8 -
4 0V 9 +5V
5 SHIELD
1
2
3
4
5
6
7
8
9
Motor Side Connector
Drive Side Connector
Product
type
6
7
8
9
1
2
3
4
5
    
APCS-EN03ES-AD
N
3m [9.8 ft]
24AWG
LS Electric encoder
feedback cable, for
use with FBL/FCL
series motors
APCS-EN05ES-AD 5m [16.4 ft]
APCS-EN10ES-AD 10m [32.8 ft]
APCS-EN20ES-AD 20m [65.6 ft]
APCS-EF03ES-AD
Y
3m [9.8 ft] LS Electric flexing
encoder feedback
cable, for use with
FBL/FCL series motors
APCS-EF05ES-AD 5m [16.4 ft]
APCS-EF10ES-AD 10m [32.8 ft]
APCS-EF20ES-AD 20m [65.6 ft]