Toshiba VF-A7 instruction manual Motor end surge

No.	Option name	Function, purpose.
	Motor noise reduction	Can be used to suppress the magnetic noise from motor.
⑧	filter (for large capacity
	model only)
		In a system in which 400 V class general motor is driven by a voltage PWM type inverter
	Motor end surge	using a high-speed switching device (IGBT, etc.), surge voltage depending on cable constant
⑨	voltage suppression	may cause deterioration in insulation of motor winding. Take measures against surge voltage
	filter	such as use of insulation-reinforced motor, installation of AC reactor, surge voltage
	(for 400 V models only)	suppression filter, sine wave filter and so on in the inverter’s output side.
		Note) Set the carrier frequency to 2.2kHz when sine wave filter is used.
		For inverters of 22 kW or less models, it is needless to input control power to the terminal
		(RO, SO) because those models are internally supplied with control voltage from the main
		circuit power supply.
		To use the main circuit power supply and control power supply separately for inverters of 22
		kW or less models, use an optional control power supply unit. (Inverters of 30 kW or more
		models have a built-in control power supply circuit respectively.)
		■Installation of optional control power supply unit (for 22 kW or less models)
		For installing an optional control power supply unit, remove the jumper connector
		(CN21) inside the inverter and connect the connector of the option to it.
		Install the optional control power supply unit nearby the inverter.
		＜Outward appearance of option unit＞
		Name plate
		(Caution label)
		Window for LED and
		hole for cooling
		If this unit is charged
		LED inside this
		window lights.
		Connector (6 pole)
		Connect to the
		inverter.
⑩	Control power converter
	unit
		Cable (70 cm)
		＜Outside dimensions of optional control power supply unit＞
			Unit: mm

(Model: CPS0011) *Common use for 200 V and 400 V models

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