Toshiba VF-A7 instruction manual Process, upper/lower limits, Fault, Causes, Digit, 25 to +65C

(Continued from the preceding page)

	Item			Description
			Warning	Stall prevention during operation, over-current suppression, overload, power
				source-side undervoltage (optional), DC circuit undervoltage, setting error, retry in
			message
				process, upper/lower limits.
			Fault	Overcurrent, over-voltage, heat sink overheat, load-side short-circuit, load-side ground
				fault, inverter overload, armature over-current during start-up, load-side over-current
			causes	during start-up, EEPROM error, RAM error, ROM error, transfer error (dynamic braking
			trouble	resistor overload), (emergency stop), (undervoltage), (weak current), (over-torque),
				(motor overload), (output open-phase). Items in parentheses are selectable.
				Operation frequency, operation frequency command, operating direction
				(forward/reverse), output current, DC voltage, output voltage, compensated frequency,
functions	LED		function	terminal board input /output information, CPU version, control EEPROM version, tripping
				PBR overload rate, PBR load rate, power supply, output current, peak output current,
	4-digit		Monitoring	history, cumulative operation time, speed feedback, torque, torque command, torque
	7-segment			current, exciting current, PID feedback value, motor overload rate, inverter overload rate,
Display				peak DC voltage, motor counter pseudo PG, position pulse, RR input, VI/II input, RX
				input, RX2 input, FM output, AM output, fixed output for meter adjustment, flash memory
				version, main circuit EEPROM version, connection option types, previous default setting,
				previous automatic control setting (AU2), sink/source switching status.
			Selectable	Can select frequency display to match motor speed, line speed, etc. Selection of
			unit display	display of current in amperes/%, voltage in voltage/%.
			Edit	Parameters different from those set by default are retrieved automatically, so that
			function	parameters changed can be detected easily.
			User	Original parameters set by user can be stored. Parameters stored can be reset to
			settings	original user-defined parameters.
			initialization
	LED		Charge	Indicates that main circuit capacitors are charged.
			indicator
	Input/output	terminal		A-contact/B-contact switchable by making a selection from the programmable I/O
logic switching				terminal function menu. (*1), (*2) (Default setting: A-contact)
Sink/source				Negative common (CC) and positive common (P24) of control terminal are switchable to
switching				each other. (On shipment, negative common [CC] is selected as default setting.)
	Fault detection signal			1c contact output (250Vac-2A-cosΩ = 1,250Vac-1A-cosΩ = 0.4, 30Vdc-1A)
	Low-speed/speed
	reach signal			Open-collector output (24Vdc, Max. 50mA, output impedance: 33Ω)
signals	output (*2)
	frequency output			Open-collector output (24Vdc, Max. 50mA, output impedance: 33Ω)
	Upper/lower limit
Output	(*2)
	Frequency meter
	output/ammeter			Analog output, 1mAdc full-scale ammeter or 7.5Vdc-1mA voltmeter.
	output (*3)
	Pulse train			Open-collector output (24Vdc, Max. 50mA)
	frequency output
Communication				RS485 equipped as standard (connector: modular 8P, optional device required for
				communication with more than one unit)
functions
				RS232C, TOSLINE-F10M and TOSLINE-S20 are optional.
conditions	Service			Indoor, altitude 1000m or less, not subject to direct sunlight or corrosive/explosive
	temperature			is removed when the ambient temperature exceeds 40°C.)(*6)
	environment			gas or steam.
	Ambient			-10 to +50°C (For models 15 kW or less, Max. 50°C, provided that the upper cover
Service
	Storage temperature			-25 to +65°C
	Relative humidity			20 to 93% (no condensation allowed)
	Vibration			5.9m/s2 {0.6G} or less (10 to 55Hz) (according to JIS C0911)

(*1): The 16 contact-input terminals (8 of which are optional) are programmable. For each of them, a signal can be selected from among 136 signals.

(*2): For each programmable ON/OFF output terminal, a signal can be selected from among 120 signals.

(*3): For each programmable analog output terminal, a signal can be selected from among 32 signals.

(*4): When the cover is removed, the unit must be placed in the panel to prevent the charger from being exposed. For the 30kW and larger models, the unit can be used in a temperature range of -10 to +50°C with the cover left attached.

(*5): The models with a capacity of 30kW or more have uncovered wide-opened wiring holes and the unit has no space in it which is large enough to bend external cables. So, use a optional wiring hole covers when installing the unit outside.

(*6): To use VFA7-2150P in 40 to 50°C, reduce the maximum output current to 80% of rated output current. Using VFA7-4150PL in 40 to 50°C, reduce the maximum output current to 85% of rated output current.

(*7): Protect the inverter from over-current caused by output-side ground fault.

K-4