Toshiba VF-AS1 instruction manual An example of setting when =

E6581301

■An example of setting when ￿￿￿=￿

￿ Input voltage "

Motor speed"

Time"

Deceleration stop"

•Even after the recovery from an input power failure, the motor continues slowing down to a stop. If the voltage in the inverter main circuit falls below a certain level, however, control will be stopped and the motor will coast.

•The deceleration time varies according to the setting of ￿￿￿￿. In this case, the deceleration time refers to the time elapsed before a motor running at ￿￿￿(maximum frequency) comes to a full stop.

•If the voltage in main circuit below ￿￿￿￿ (Under voltage detection level ) at Non-stop control during power failure, the motor will coast and inverter display is shown "￿￿￿￿￿￿￿￿(displayed alternately)". And then, If recovery from the input power failure, the motor continues coasting.

■An example of setting when ￿￿￿=￿ (when the function of receiving synchronized acceleration/deceleration signals is assigned to the input terminal S1)￿

￿￿￿￿ (Input terminal function selection 5 (S1)) =￿￿ (Synchronized acceleration/deceleration signal)

Synchronized			ON"
acceleration/decel
eration signal	"	Inverter 1"	5
(S1 terminal)	"

Motor speed"

￿￿￿￿￿

Time"

Inverter 2" ￿￿￿￿￿

•If the parameters ￿￿￿￿, ￿￿￿￿ are set for same acceleration and deceleration time and if synchronized acceleration/deceleration signals set using the input terminal functions (￿￿, ￿￿! are used, multiple motors can be stopped at about the same time or speed commands can be issued to them at about the same time.

•If a synchronized acceleration/deceleration signal is impressed, the synchronized deceleration function decreases the output frequency to 0Hz to decelerate the motor linearly within the time specified with ￿￿￿￿. (The S-pattern operation function or the braking sequence cannot be used along with this function.)

When the motor comes to a full stop, the message “STOP” appears on the display panel.

•If the synchronized acceleration/deceleration signal is canceled during synchronized deceleration, the synchronized acceleration function increases the output frequency to the frequency at the start of synchronized deceleration or to the command frequency, whichever is lower, to accelerate the motor linearly within the time specified with ￿￿￿￿. (The S-pattern operation function, the braking sequence or the auto-tuning function cannot be used along with this function.)

When acceleration is started, the message “STOP” on the display panel disappears.

•If a forward/reverse switching command or a stop command is issued during synchronized acceleration or deceleration, synchronized acceleration or deceleration will be canceled.

■An example of setting when ￿￿￿=￿

Synchronized deceleration if a synchronized acceleration/deceleration signal is impressed or if a power failure occurs, or synchronized acceleration if the synchronized acceleration/deceleration signal is canceled.

E-35