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Safety
I
precautions
Preface
II
Contents
Read this
section first 1
Connection
Instruction Manual
2
Operating
3
the inverter
Basic
The new generation
Operation 4
high-performance inverter
Basic
5
parameters
TM
Extended
TOSVERT VF-A7
parameters 6
Operation
with external
7
signal
Monitoring
operation
8
status
Peripheral
units 9
200V class 0.4 90kW
Table of
400V class 0.75 280kW
parameters 10
Specification
11
Prior to
12
NOTICE
service call
1. Make sure that this instruction manual
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Safety precautions The labels on the inverter and this instruction manual contain important instructions for the prevention of possible injury to the user and other persons and damage to property, as well as for the safe use of the inverter. Please gain a good understanding of the following pictorial symbols before reading this manual and strictly observe the instructions that follow each symbols. Marking Symbols Meaning Means that improper use or handling could cause the risk of death or seri
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Handling in general Reference Danger Never disassemble, modify or repair the inverter. Its disassembly could 2. cause an electric shock, afire or an injury. Request your TOSHIBA dealer for repair. Never Disassemble -Never open the front cover of the inverter(or the door of the cabinet in 2. which the inverter is installed) when the inverter is energized, or you could get a shock since a high voltage is applied to certain portions of it. -Do not put your fingers into the panel through a wiring
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Transportation Installation Reference Danger -Do not install or operate the inverter if it is damaged or any part is missing 2. from it. Operating the inverter in a defective condition could lead to a shock or a fire. Request your Toshiba dealer for repair. -Do not put any inflammable material near the inverter, or it could catch a 1.4.4 Prohibited fire if the inverter sparks because of a breakdown, etc. -Do not install the inverter where it can be splashed with water, etc., or it 2. could
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Wiring Reference Danger -Do not connect the power cable to any output terminal (U/T1, V/T2 or W/T3 2.2 on the motor side), or the inverter could break down and cause a fire. -Do not connect a resistor to any D.C. terminal (between PA and PC or PO 2.2 and PC), or the inverter could cause a fire. 6.13.4 Prohibited To install external braking resistor, refer to 6.13.4. -Don’t touch the connector terminals and cables of the devices(MCCB) on he input side of the inverter within 10 minutes after shut
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About operation Reference Danger -Do not touch any inverter's terminal when it is energized even if the motor 3. is standstill, or you could get a shock. -Do not operate switches with a wet hand or not put a wet cloth on the 3. inverter, or you could get a shock. Prohibited -Do not get near the alarm-stopped motor when the system is in retry 3. mode, or you could get an injury. Take safety measures, for example, attaching a cover to the motor, to protect persons against accidents when the motor
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When selecting the retry mode (Applicable to inverters) Reference Warning -Do not get near the motor. 6.13.3 When the retry mode is selected, the motor and machine that stopped after an alarm restart unexpectedly after the selected time has passed, thus causing injury to persons. Mandatory -Stick caution labels to the inverter, the motor and the machine, to prevent accidents due to an unexpected restart of them in retry mode. About inspection and maintenance Reference Danger -Do not replace any
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Preface Thank you for purchasing the industrial inverter "TOSVERT VF-A7". This inverter has a "Ver. 315"CPU or later. Please refer to "10. Table of parameters" for the functions available for the inverter with a CPU in this version. The CPU version will be frequently upgraded. Features 1. Noise filter incorporated 1)Every 200V or 400V model (200V 0.4 7.5KW and 400V 0.75 15kW models) has a built-in noise filter. 2)" VF-A7" complies with the European CE marking requ
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Read this section first 1.1 Checking the purchase Make sure that the inverter delivered is exactly what you ordered. Warning Use an inverter which matches the input power rating of your three-phase induction motor. The use of an inverter unsuitable for your motor can cause it to rotate in a wrong direction, and thus lead to grave accidents, including its burning due to overheating. Mandatory Applicable motor label Inverter main unit Pet name 200V-3.7kW Power supply Motor capacity W
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1.3 Names and functions 1.3.1 Panel description VEC lamp RUN lamp MON lamp PRG lamp Lit when the inverter is in Lit when the inverter Lit when the Inverter Lit when the operation or blinks when It is in parameter is in vector control inverter is in is in auto acceleration/ setting mode. mode. monitor mode. deceleration mode. STOP key ECN lamp Pressing this key while the RUN key Lit when the inverter lump is lit causes is in energy-saving the motor to make a mode. slowdown stop. MONITOR
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Warning label on the top (*1) Cooling fin Connectors for optional add-on module/board Wiring hole (*2) Ventilation slits Rating label [Bottom view] [Side view] (*1) Peel off this label when the inverter is installed in a rather hot place. (Models for 15kW motor or smaller) (*2) Using scissors or a cutter, cut the rubber bush in the wiring hole as shown below.(Models for 22kW motor or smaller) Cut Rubber bush Panel indication LED display is using the following signs to indicate the operat
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1.3.2 Main circuit, control power supply and control circuit terminal boards Main circuit terminal board VFA7-2004PL 2037PL VFA7-4007PL 4037PL VFA7-2055PL, 2075PL VFA7-4055PL, 4075PL VFA7-2110P 2150P VFA7-4110PL 4150PL A-4
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VFA7-2185P, 2220P VFA7-4185P, 4220P Grounding terminal VFA7-2300P, 4300P VFA7-4370P1 4550P1 A-5
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VFA7-2370P1 2550P1 VFA7-4750P1 VFA7-2750P1 VFA7-4110KP1, 4132KP1 VFA7-2900P1 VFA7-4160KP1 4280KP1 A-6
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Control power supply terminal board Note)To use R0,S0 terminal on 22kW model or smaller, you need a Control power supply unit option.(Refer to 9.4) VFA7-2055PL 2220P VFA7-2300P VFA7-4055PL 4220P VFA7-4300P VFA7-2370P1 2900P1 VFA7-4370P1 4280KP1 Control power supply inputs Control power Power supply supply inputs(*1) for control circuit (*1)Refer to 2.2 for the connection of control power
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Control circuit terminal The control circuit terminal board is common to all models. Screw size M3 ST-CC shorting bar Refer to section 2.3.2 for the functions of terminals. 1.3.3 Detaching the terminal board front cover Detach the front lower cover for wiring, following the steps below. Less than 22kW Hooked Remove the two screws at the lower part of the To detach the cover, draw front cover. the terminal board cover toward you while swinging it up a little.
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1.4 Notes on the application of inverters 1.4.1 Notes on motors combined with inverters Keep in mind the following notes when using the VF-A7 in combination with a motor. Warning Use an inverter which matches the input power rating of your three-phase induction motor. The use of an inverter unsuitable for your motor can cause it to rotate in a wrong direction, and thus lead to serious accidents, including its burning due to overheating. Mandatory Comparison with commercial power o
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A load, e.g., a reciprocating load, which requires a frequent change in the rotating speed In this case, if the inverter is in vector control mode, adjust the response time (setting of moment of inertia) or switch to V/f control mode to stabilize the operation. If it is operated in vector control mode, only a motor whose capacity is same as inverter standard or 1 rank lower is applied. If it is operated in V/F (other than vector control), the rotating of motor can be unstable in combination w
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1.4.2 Notes on inverters Over-current protective function The inverter has an over-current protective function. The current for this protection is adjusted to the maximum current rating of the applicable motors by default. Therefore, when the inverter is used to control a motor with a relatively small capacity, it is necessary to readjust the over-current protection level and the electronic thermal protective function. In such a case, follow the procedure specified in 5.13 to readjust them.
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1.4.3 Influences of leakage currents and measures against it Warning An electric current can leak through an input or output cable of the inverter because of its insufficient capacitance and, sometimes, affects the peripheral systems. The amount of a leakage current depends on the carrier frequency, the length of the input/output cable, etc. It is advisable to take the following measures to prevent leakage currents. (1) Influences of a current leaking into other systems via the g
