SMC LECYM2 AC Servo Motor Driver Instruction Manual

• The driver should be mounted vertically onto a panel using screws tightened to the required tightening torque.
• Firmly secure the driver to the mounting surface, using either two or four mounting holes depending on the driver capacity.

Caution
If the mounting surface for the driver is not flat or is uneven, excessive stress may be applied to the enclosure, which can cause failure. Be sure to mount on a flat surface.
4.3 Environment
Warning

• Do not use the product in the presence of flammable, explosive or corrosive gases, chemicals, salt water or steam.
• This product does not have an explosion proof construction.
• Do not expose to direct sunlight. Use a suitable protective cover.
• Do not install in a location subject to vibration or impact in excess of the product’s specifications.
• Do not mount in a location exposed to radiant heat that would result in temperatures in excess of the product’s specifications.
• Avoid mounting the driver near a vibration source, such as a large electromagnetic contactor or circuit breaker on the same panel.

Wiring

Caution

• Do not perform wiring while the power is on.
• Confirm proper insulation of wiring.
• Use only the specified cables.
• Ensure that the driver and servo motor are installed securely before wiring commences.
• Wire the connector correctly and securely.
• Check the connector for polarity and do not apply any voltage to the terminals other than those specified.
• Take appropriate measures against noise. Noise in a signal line may cause malfunction.
• Do not route cables together with power or high voltage cables.
• Keep wiring as short as possible to prevent interference from electromagnetic noise and surge voltage.
• Do not use the product in a place where electrical surges are generated.
• Use suitable surge protection when a surge generating load such as a solenoid valve is to be directly driven.
• Take care that actuator movement does not catch the cables.

5.1 Wiring diagram
Three phase 200 to 230 VAC 1QF: Moulded case circuit breaker
1FLT: Noise filter
1KM: Magnetic contactor (control circuit)
2KM: Magnetic contactor (main circuit)
1Ry: Relay
1PL: Indicator lamp
1SA: Surge absorber
2SA: Surge absorber
3SA: Surge absorber
1D: Flywheel diode
5.2 Ground connection

• Provide grounding to ensure correct operation and to improve noise resistance of the product.
• This product should be individually grounded using a short cable.
• A dedicated Ground connection must be used. Grounding should be to a D-class ground (ground resistance of 100 Ω maximum).
• The cross-sectional area of the ground cable shall be 2 mm minimum.

Caution
To prevent an electric shock, always connect the protective earth (PE) terminal (terminal marked ) of the driver to the protective earth (PE) of the control box.
Power connector details

Terminal| Function|

Details

---|---|---
L1|

Main circuit power supply

| Connect the main circuit power supply. Single phase 200 to 230 VAC, 50/60 Hz L1, L2
Three phase 200 to 230 VAC, 50/60 Hz L1, L2, L3
L2
L3
L1C| Control power supply| Connect the control power supply. Single phase 200 to 230 VAC, 50/60 Hz L1C, L2C
L2C
B1/+| External regenerative resistor connection terminal| When the regenerative resistor is required, connect it between terminals  and B2.
B2
B3
-1| Main circuit negative connection terminal| Terminals   and  are connected at shipment from the factory.
-2

Motor connector

Caution

• Be sure to wire correctly and securely. Failure to observe this caution may result in electric actuator overrun, injury, or malfunction.
• Do not connect a commercial power supply to the U, V, or W terminals for the motor cable connection.
• Securely connect the main circuit terminals.
• Do not bundle or run the main circuit cables together with the I/O signal cables or the encoder cables in the same duct. Keep the main circuit cables separated from the I/O signal cables and the encoder cables with a gap of at least 30 cm. Placing these cables too close to each other may result in malfunction.
• Use shielded twisted-pair cables or screened unshielded twisted-pair cables for I/O signal cables and the encoder cables.
• The maximum wiring length is 3 m for I/O signal cables, 20 m for encoder cables or servomotor main circuit cables.
• Do not touch the power supply terminals while the CHARGE lamp is ON after turning power OFF because high voltage may still remain in the driver.
• Make sure the charge indicator is OFF first before starting to do wiring or inspections.
• Be sure to observe the following precautions when wiring the driver main circuit terminal blocks.
• Install a battery at either the host controller or the driver, but not both. It is dangerous to install batteries at both ends simultaneously, because that sets up a loop circuit between the batteries.
• Always use the specified power supply voltage.
• Make sure that the polarity is correct.
• Take appropriate measures to ensure that the input power supply is supplied within the specified voltage range. Be particularly careful in places where the power supply is unstable.
• Install external breakers or other safety devices against short-circuiting in external wiring.

Warning

• Do not install the driver, servo motor or the regeneration option, on or near combustible materials.
• Provide adequate protection to prevent foreign matter from entering the driver and servo motor.
• Always connect a circuit breaker to the power supply of the driver.

Setting

In order to move the electric actuator to a specific position, it is necessary to set up the patterns of operation with a PC using the driver setting software. This set up data will be recorded in the memory of the driver.
The driver has an LED display to show the servo status and alarm details, and parameter setting switches.
Refer to the Operation Manual on the SMC website (URL: https://www.smcworld.com) for further setting details.

How to Order

Refer to the catalogue on the SMC website (URL: https://www.smcworld.com) for the How to Order information.

Outline Dimensions (mm)

Refer to the drawings / operation manual on the SMC website (URL: https://www.smcworld.com) for outline dimensions.

Maintenance

9.1 General Maintenance
Caution

• Not following proper maintenance procedures could cause the product to malfunction and lead to equipment damage.

• Before performing maintenance, turn off the power supply. Wait until the charge lamp turns OFF.
  Check the voltage with a tester 15 minutes after the power supply is turned OFF.
  Lock the system so that no other person can turn the power on or implement measures such as a safety plug.

• If any electrical connections are disturbed during maintenance, ensure they are reconnected correctly and safety checks are carried out as required to ensure continued compliance with applicable national regulations.

• Do not make any modification to the product.
  Do not disassemble the product, unless required by installation or maintenance instructions.

Caution

• Maintenance should be performed according to the procedure indicated in the Operation Manual.
• When equipment is serviced, first confirm that measures are in place to prevent dropping of work pieces and run-away of equipment, etc, then cut the power supply to the system. When machinery is restarted, check that operation is normal with actuators in the correct position.

Warning

• Perform maintenance checks periodically.
• Confirm wiring and screws are not loose. Loose screws or wires may cause unexpected malfunction.
• Do not remove the cover of the power supply terminals while the power is ON.
• Do not touch terminals for five minutes after the power is turned OFF.
• Do not touch terminals while the charge indicator is ON.
• Do not touch terminals for five minutes after voltage resistance test. Residual voltage may cause electric shock.
• Conduct an appropriate functional inspection and test after completing maintenance. In case of any abnormalities (if the actuator does not move, etc.), stop the operation of the system. Otherwise, an unexpected malfunction may occur and it will become impossible to ensure safety. Operate an emergency stop instruction to confirm safety.
• Do not put anything conductive or flammable inside or near to the driver.
• Ensure sufficient space around the driver for maintenance.
• Always perform a system check after maintenance.

9.2 Periodical maintenance

• For inspection and maintenance of the driver, follow the inspection procedure in the table below at least once every year.

Item

| Frequency| Procedure|

Remedy

---|---|---|---
Exterior| At least once a year| Check for dust, dirt and oil on surfaces.| Clean with compressed air or a cloth.
Loose screws| Check for loose terminal block and connector screws.| Tighten any loose screws.

Limitations of Use

10.1 Limited warranty and Disclaimer/Compliance Requirements Refer to Handling Precautions for SMC Products.

Product disposal

This product shall not be disposed of as municipal waste. Check your local regulations and guidelines to dispose of this product correctly, in order to reduce the impact on human health and the environment. Dispose of the driver and other options according to local laws and regulations.

Contacts

Refer to www.smcworld.com or www.smc.eu for your local distributor/importer.
URL : http://www.smcworld.com (Global) http://www.smc.eu (Europe)
SMC Corporation, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021, Japan
Specifications are subject to change without prior notice from the manufacturer.
© 2021 SMC Corporation All Rights Reserved.
Template DKP50047-F-085M

References

• SMC Europe | SMC Europe
• SMC Europe | SMC Europe
• SMC Europe | SMC Europe
• SMC株式会社
• SMC株式会社
• SMC株式会社
• SMC株式会社

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