Toshiba VF-A7 instruction manual Parameter setting

■Output terminal function(open collector, relay outputs) settings and detection levels

＜Technical terms＞

Alarm:･･････････････ Alarm output beyond a certain setting value

Pre-alarm: ･･････････ Alarm output of the state where the inverter may carry out a trip by continuation

Serious failure: ･･････ Output signal in a serious failure of the protection function of the inverter. (Arm over-current(, , ), Load side over-current(), Short- circuiting(, ), Phase failure(, ), etc.)

Light failure:･････････ Output signal in a slight failure of the protection function of the inverter. (Over-load(, ), Over-voltage(, , ), Over-current(, , , , , ), etc.)

Emergency stop: ････ Output signal when the inverter comes into emergency stop. Stopping manner is set with (emergency stop).

Table of output terminal functions and detection levels

Parameter setting		Function	Operation output specifications (in case of positive logic)
Positive	Negative
logic	logic
		Lower limit frequency	"ON": The running frequency is higher than the setting of 
0	1		(Lower limit frequency).
		()	"OFF": The running frequency is equal to or lower than the setting
			of .
2	3	Upper limit frequency	"ON": The running frequency is equal to or higher than the setting
			of (Upper limit frequency).
		()
			"OFF": The running frequency is lower than the setting of .
4	5	Low speed signal	"ON": The running frequency is equal to or higher than the setting
			of (low-speed signal output frequency).
			"OFF": The running frequency is lower than the setting of .
6	7	Acceleration/deceleration	"ON": The difference between the frequency command and the
		completion	running frequency is within the setting of .
			"OFF": In acceleration or deceleration.
			"ON": The running frequency is in the range of ±.
8	9	Specified speed arrival	"OFF": The running frequency is out of the range of
			±.
10	11	Failure FL (all trip)	"ON": Inverter is tripped.
			"OFF": Inverter trip is cancelled.
12	13	Failure FL (except for	"ON": Inverter is tripped (except EF and OCL).
		 and )	"OFF": Inverter trip is cancelled (reset).
			"ON": Inverter output current is over the (Stall prevention
14	15	Over-current pre-alarm	level) set value.
			"OFF": Inverter output current is under the set value.
16	17	Inverter overload	"ON": A certain rate of inverter overload() detection time is over.
		pre-alarm	"OFF": The detection time is within a certain limit.
18	19	Motor overload	"ON": A certain rate of motor overload() detection time is over.
		pre-alarm	"OFF": The detection time is within a certain limit.
			"ON": The temperature of the cooling fin is 85℃ or higher inside
20	21	Overheat pre-alarm	the inverter.
			"OFF": The temperature drops to 80℃ or lower after overheat
			pre-alarm was on.
22	23	Over-voltage pre-alarm	"ON": In over-voltage control operation or PB operation.
			(200V class: 370 VDC approx., 400V class: 740 VDC approx.)
		Main circuit	"ON": The main circuit voltage is lower than the main circuit under-
24	25	under-voltage ()	voltage detection () level.
		detected	(200V class: 200 VDC approx., 400V class: 380 VDC approx.)
			"ON": is set at and the state that inverter output current is
26	27	Low current detected	set value or larger continued more than  set
			value.
28	29	Over-torque detected	"ON": The state that torque current component is ()
			set value or larger continued more than  set value.
30	31	Braking resistor overload	"ON": A certain rate of braking resister overload trip()
		() pre-alarm	detection time is over.
			"OFF": The detection time is within a certain limit.
32	33	In emergency stop	"ON": In emergency stop operation ("" is indicated).
			"OFF": No emergency stop operation is performed.
34	35	In course of retry	"ON": In retry operation ("" is indicated).
			"OFF": No retry operation is performed.
36	37	Pattern run switching	"ON": In normal operation or pattern operation has finished.
		output	"OFF": In pattern operation.

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