Toshiba TOSVERT VF-FS1 Series, Instruction Manual

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E6581381
H-9
8
Note 4: The number of bars displayed varies depending on the setting of H (analog input/logic input
function selection). The bar representing VIA is displayed only when the logic input function is assigned
to the VIA terminal, respectively.
If H = : The bar representing VIA is not displayed.
If
H
= or : The bar representing VIA is displayed.
Note 5: The integrated amounts of input and output power will be reset to zero, if you press and hold down the
key for 3 seconds or more when power is off or when the input terminal function CKWH (input
terminal function: 51) is turned on or displayed.
Note 6: Past trip records are displayed in the following sequence: 1 (latest trip record)
⇔
2
⇔
3
⇔
4 (oldest trip
record). If no trip occurred in the past, the message “ PGTT ” will be displayed. Details on past trip
record 1, 2, 3 or 4 can be displayed by pressing the key when past trip 1, 2, 3 or 4 is displayed.
⇒
For more information, see section 8.1.2.
Note 7: Parts replacement alarm is displayed based on the value calculated from the annual average ambient
temperature, the ON time of the inverter, the operating time of the motor and the output current ( load
factor) specified using
H
. Use this alarm as a guide only, since it is based on a rough estimation.
Note 8: The cumulative operation time increments only when the machine is in operation.
Note 9: At the occurrence of a trip, maximum values are not always recorded and displayed for reasons of
detecting time.
Note10: If there is no trip record,
PGTT
is displayed.
,
Of the items displayed on the monitor, the reference values of items expressed in percent are listed below.
•
Load current: The current monitored is displayed. The reference value (100% value) is
the rated output current indicated on the nameplate. The unit can be
switched to A (amperes).
• Input voltage: The voltage displayed is the voltage determined by converting the voltage
measured in the DC section into an AC voltage. The reference value
(100% value) is 200 volts for 200V models, 400 volts for 400V models.
The unit can be switched to V (volts).
• Torque: The torque generated by the drive motor is displayed. The reference value
(100% value) is the rated torque of the motor.
• Torque current: The current required to generate torque is calculated from the load current
by vector operations. The value thus calculated is displayed. The
reference value (100% value) is the value at the time when the load
current is 100%.
• Load factor of inverter: Depending on the PWM carrier frequency (
H
) setting and so on, the
actual rated current may become smaller than the rated output current
indicated on the nameplate. With the actual rated current at that time (after
a reduction) as 100%, the proportion of the load current to the rated
current is indicated in percent. The load factor is also used to calculate the
conditions for overload trip (
QN ).
ENT
ENT