Emergency Stop - Toshiba TOSVERT VF-AS1 Instruction Manual

Flow of operation when =
Inverter trip

6.33.3 Emergency stop

 : Emergency stop
 : Emergency DC braking control time
• Function
Emergency stop mode can be selected. At emergency stop, a trip message ("") is displayed. These
parameters also allow you to select an FL relay operation mode.
1) Emergency stop by terminal operation
Emergency stop can be performed with the a or b-contact. Assign the emergency stop function to a terminal as
described below, and select a stop mode.
Input terminal
2) Emergency stop
=: The motor is brought to a stop within the time specified with 
=: DC braking is performed at the current specified with  (DC braking current) for the time
specified with  (emergency DC braking control time).
=: The motor is brought to a stop within the time specified with  (deceleration time 4).
[Parameter setting]
Title
Emergency stop

 Emergency DC braking control time
 DC braking current
(Example of terminal assignment): Assigning the emergency stop function to the S3 terminal.
Title
Input terminal function selection 7(S3)

Note 1: Emergency stopping via the specified terminal is possible, even during operation panel operation. In this
case, however, holding down the Stop key for more than 5 seconds causes the inverter trip () even
when  is set at .
Note 2: If = (Emergency DC braking) and DC braking is not required for normal stopping, set the DC
braking time  to  [s].
3) Emergency stopping from the operation panel is possible
Pressing the STOP key on the operation panel twice enables emergency stop.
(1) Press the STOP key ———— "" will blink.
(2) Press the STOP key again — If  (Emergency stop) = ~, the motor makes an emergency stop (or
Operation panel
(terminal) reset
Power supply reset
a-contact
CC
Use this setting to bring the motor to a stop within time different from the normal
deceleration time specified with .
Function
Function
trips) according to the setting.
If "" is displayed and =~, an error detection signal (FL) is issued
(FL is activated). (FL does not operate if =.)
F-55
Retention of failure
records is also canceled.
Turn on power again
Fault display
FL not active
If the cause of tripping or that of
another failure is not yet removed.
Input terminal
CC
Adjustment range
:Coast stop
:Deceleration stop
:Emergency DC braking
:Deceleration stop (deceleration 4)
~ sec.
~%
Adjustment range
~
E6581301
Ready for normal
operation
Trip again
Fault display
FL active
b-contact
Default setting



Setting value
 (Emergency stop)
6