Toshiba Tosvert VF-A5 - Manual (Page 98)

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Protective functions
Stall prevention, current limit, overcurrent, overvoltage, load-side short circuit, load-side
ground fault, undervoltage, momentary power failure (I5ms and longer), regeneration
power ride-through control, electronic thermal overload protection, armature overcurrent
during start-up, load-side overcurrent during start-up, dynamic braking resistor
overcurrent/overload, heatsink overheat, emergency stop, : Note 3)
aectronic thermal protection
characteristics
Standard motor/constant-torque VF motor switching, electronic thermal stall prevention
operation level adjustment ~
Reset
Reset when fa contact point is ‘closed*, or reset by panel. Tripped state retention and clear
settings.
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4-digit,
7-segment
LED
Output frequency/
stop display
Displays 0.0 to 400Kz and OFF status.
While running, displays stall prevention, overvoltage limit, overload, power-source
undervoltage, DC circuit undervoltage, and executing retry. Parameters: setting error, upper
limit, lower limit
Fault causes
Overcurrent, overvoltage, heatsink overheat, load-side short circuit, load-side ground fault,
inverter overload, armature overcurrent during start-up, load-side overcurrent during start­
up, (dynamic braking unit overcurrent/overload), (emergency stop), EEPROM error, RAM
error, ROM error, communication error, (undervoltage), (low current), (overtorque), (open
output phase), (motor overload). Hems in parentheses can be seiected/deselected.
Monitor functions
Terminal input/output status, forward/reverse, frequency setting value, output current, DC
current, output voHage, < output power > : Note 3) torque current, cumulative run time,
past faults, overload ratio, post-compensation output frequency
Selectable units
display
Can select frequency display to match motor speed, line speed, etc. Selection of display of
current in amperes/%, voltage in volts/%.
Edit function
Automatic editing of parameters differing from standard values. Allows for easy searching of
changed parameters.
Blind function Select to not display unneeded parameter groups.
User settings
initialization
Saving of user parameter values for initialization resetting possible. Parameters can be
easily reset to user default setting values.
LED Charge indicator Indicates that main circuit capacitors are charged.
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Fauit detection signal ; Note 4) 1c contact output (ao25OV-2A-cos0 = 1, ac25OV-1A-oos0=O.4, DC30V-1A)
Low speed/speed reach signai
outputs ; Note 4)
Open-collector outputs (Max. 24Vdc, Max. 50mA, output impedance: 330.)
Upper/lower limit frequency signal
outputs : Note 4)
Open-collector outputs (Max. 24Vdc, Max. 50mA, output impedance: 330)
Frequency meter/ammeter outputs
; Note 5)
ImAdc full-scale ammeter or 7.5Vdc-1mA voltmeter
Pulse-train frequency output Open-collector output (Max. 24Vdc, Max. 50mA)
Communication functions
RS232C equipped as standard (Connector: modular 6P), RS485, TOSUNE-F10, TOSUNE-
S20 are optional.
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Service environment Indoor, altitude 1000m or less, not subject to direct sunlight or corrosive/explosive gases
Ambient temperature -10 to -i-40°C (Max. 50°C possible when cover is removed: notes 8 and 9)
Storage temperature -25 to -l-65°C
Relative humidity 20 to 90% (no condensation allowed)
Vibration 5.9m/s® {0.6G} or less (10 to 55Hz) (according to JIS C0911)
Note 1) In standard configuration on 30kW and smaller units, the control power inputs are connected to the
main circuit power source. These can be easily separated if necessary.
Note 2) 800Hz is possible with special modifications, but a de-rating of the output current rating is necessary.
Note 3) Optional.
Note 4) Programmable ON/OFF output terminal signals. Can be allocated from 38 types of signals. (Up to 62
types with options.)
Note 5) Programmable analog output terminals. Can be allocated from 12 types of signals. (Up to 14 types with
options.)
Note 6) The 11 contact input terminals (of which three are optional) are programmable contact input terminals,
and can be allocated from 34 types of signals. (Up to 51 types with options.)
Note 7) Three holes can be opened for input main circuit wiring, output main circuit wiring, and control circuit
wiring, but the openings must be securely covered after wiring.
Note 8) When the cover is removed, always store the unit in a panel so that charged sections are not exposed.
22kW and larger units can handle -10 to 50“C without removal of the cover.
Note 9) 22kW and larger units have a large opening instead of a wiring cover, and there is no space for
bending externally-connected cables inside the unit. Use the optional wire opening cover when the unit
is not installed in a panel.
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