Toshiba VF-nC1 User Manual download pdf (Page 89)

E6581090

F-25

1) If function 12 (OT: over-torque detection) is assigned to the FM/OUT terminal,

using the output terminal selection parameter H

H (FM/OUT terminal selection 1): 12 (OT: over-torque detection)

Time (sec)

＊H

-10%

H

Torque current (%)

Over-torque-

detection signal

P15-FM/OUT

H

Ｏ

OFF

*The VF-nC1 inverter has 10% of hysteresis to prevent the occurrence of over-torque hunting.

Therefore, the over-torque signal is turned off at a level lower than the setting of

H

10% (hysteresis).

Less than

H

-set value

6.14.8 Undervoltage trip

H

: Under voltage trip selection

• Function

This parameter is used to select the control mode activated when an undervoltage is

detected. The error message “

WR

” will be displayed if the inverter trips because of an

undervoltage.

H＝ : Disabled ････The inverter shuts down but not trip. (FL relay not activated) The

inverter shuts down if the voltage drops below 64% of the rated

voltage.

H＝ : Enabled ･････The inverter shuts down. It trips if the voltage drops below 64% of

the rated voltage. (FL relay activated)

H＝ : Disabled ････The inverter shuts down but not trip. (FL relay not activated) The

inverter shuts down if the voltage drops below 50% of the rated

voltage. When setting H to , be sure to install the input

reactor of an option.

Title FunctionAdjustment rangeDefault setting

H

Under voltage trip

selection

0: Disabled

1: Enabled (shutdown below 64%,

FL relay activated)

2: Disabled (shutdown below 50%,

FL relay not activated)

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Toshiba VF-nC1 User Manual Page 89

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