Toshiba TOSVERT VF-S11 Instruction Manual page 193

Note 6: 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 7: 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 "
record 1, 2, 3 or 4 can be displayed by pressing the
more information, see 8.1.2.
Note 8: 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
Note 9: The cumulative operation time increments only when the machine is in operation.
Note 10: At the occurrence of a trip, maximum values are not always recorded and displayed for reasons of
detecting time.
Note11: If there is no trip record, nerr is displayed.
Of the items displayed on the monitor, the reference values of items expressed in percent are listed below.
✩ ✩ ✩ ✩
•
Load current:
•
Input voltage:
•
Torque:
•
Torque current:
•
Load factor of inverter:
•
PBR cumulative load factor: The load factor of the braking resistor that may come up to the level at
key when past trip 1, 2, 3 or 4 is displayed. For
. Use this alarm as a guide only, since it is based on a rough estimation.
The current monitored is displayed. The reference value (100% value) is
the rated output current indicated on the nameplate. That is, it
corresponds to the rated current at the time when the PWM carrier
frequency (f300) is 4kHz or less. The unit can be switched to A
(amperes).
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 240V models, 400 volts for 500V models or
575 volts for 600V models. The unit can be switched to V (volts).
The torque generated by the drive motor is displayed. The reference value
(100% value) is the rated torque of the motor.
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%.
Depending on the PWM carrier frequency (f300) 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 (
which an overload trip (
trip occurs when it reaches 100%.
H-9
" will be displayed. Details on past trip
).
) occurs is indicated in percent. An overload
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