Toshiba VF-nC1 User Manual

Page 87

E6581090

F-23

(An example of terminal assignment) Assigning the trip stop function to the R terminal

Title

Function

Adjustment range

Default setting

Input terminal selection 2 (R)

0~40, 49, 54~57

(External trip stop)

Notes:
1) Emergency stop by means of the specified terminal is possible, even when operation is

controlled from the operation panel.

2) If H (DC braking starting frequency) is set to 0.0 (Hz) and H (DC braking

time to 0.0 (sec), the DC braking function will not be activated even if H is set to 2
(emergency DC braking).

2) Emergency stop by means of the operation panel

The emergency stop function can be controlled from the operation panel when the RUN and STOP
keys on the panel are not in use for operation (when they are inoperative).
To activate the emergency stop function, press the STOP key on the operation panel twice.
①

Press the STOP key _________ “GQHH” will blink.

Press the STOP key again____ Operation will be stopped in accordance with the setting of

. At the same time, “G” will be displayed and a

failure detection signal (FL) will be put out (FL activated).

6.14.4 Output phase failure detection

H : Output phase failure detection mode selection

• Function

This parameter allows you to select a mode of detecting an output open-phase failure. If an
open-phase failure persists for one second or more, the tripping function and the FL relay will
be activated, and at the same time, the error message GRJQ will be displayed.

Set

to “

” to open the motor-inverter connection by switching commercial power

operation to inverter operation.
Detection errors may occur for special motors such as high-speed motors.

H＝

(Disabled)･･･････････････ No tripping (FL relay not activated)

H＝

(Enabled) ･･･････････････ An open-phase check is performed when operation is

started for the first time after power has been turned on.
The inverter will trip if an open-phase failure persists for
one second or more. (FL relay activated)

H＝

(Enabled) ･･･････････････ An open-phase check is performed each time operation

is started. The inverter will trip if an open-phase failure
persists for one second or more. (FL relay activated)

Title

Function

Adjustment range

Default setting

Output open-phase
failure detection mode
selection

0: Disabled
1: Enabled (Checked at the first

start of operation)

2: Enabled (Checked at each start

of operation)

6.14.5 Motor 150%-overload time limit

H : Motor 150%-overload time limit

• Function

This parameter is used to set the time elapsed before the inverter trips when the motor is
operated under a load of 150%.

Title

Function

Adjustment range

Default setting

Motor 150%-overload time
limit

10～800 (sec)

300