Specifications

PREFACE

Firmware – S2011 and S3012

Revision: 1 (9/98) iii © Saftronics, Inc.

CAUTION

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• Verify that the Inverter rated voltage coincides with the AC power supply voltage. Failure to observe this

can result in personal injury or fire.

• Do not perform a withstand voltage test on the Inverter. It may cause semi-conductor elements to be

damaged.

• To connect a Braking Resistor, Braking Resistor Unit or Braking Unit, follow the procedures described in

Chapter 11. Improper connection may cause a fire.

• Tighten terminal screws to the specified tightening torque. Failure to observe this can result in a fire.

• Never connect the AC main circuit power supply to output Terminals T1, T2, and T3 (U, V, and W). The

Inverter will be damaged and invalidate the warranty.

§ Operation

WARNING

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• Only turn ON the input power supply after replacing the front cover. Do not remove the cover while

current is flowing. Failure to observe this can result in an electrical shock.

• When the retry function (n057) is selected, do not approach the Inverter or the load, since it may restart

suddenly after being stopped. (Construct machine system, so as to assure safety for personnel, even if

the Inverter should restart.) Failure to observe this can result in personal injury.

• Since the stop button can be disabled by a function setting, install a separate emergency stop switch.

Failure to observe this can result in personal injury.

CAUTION

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• Never touch the heatsink or discharging resistor since the temperature is very high. Failure to observe

this can result in harmful burns to the body.

• Since it is easy to change operation speed from low to high speed, verify the safe working range of the

motor and machine before operation. Failure to observe this can result in personal injury and machine

damage.

• Install a holding brake separately, if necessary. Failure to observe this can result in personal injury.

• Do not change signals during operation. The machine or the Inverter may be damaged.

• All the constants of the Inverter have been preset at the factory. Do not change the settings

unnecessarily. The Inverter may be damaged. For supply voltage, follow Paragraph 4.3 of Chapter 4.

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