Toshiba G7 Ridethrough Time, Disable Forward Run/Disable Reverse Run, Scan Rate, Lock-on Rate

F310 F313

Ridethrough Time

Program ⇒ Protection Parameters ⇒ Retry/Restart

In the event of a momentary power outage, this parameter determines the length of the Ridethrough time. During a Ridethrough, regenerative energy is used to maintain the control circuitry settings; it is not used to drive the motor.

The Ridethrough will be maintained for the number of seconds set using this parameter.

Note: The actual Ridethrough Time is load-dependent.

Direct Access Number — F310

Parameter Type — Numerical

Factory Default — 2.00

Changeable During Run — Yes

Minimum — 0.00

Maximum — 320.0

Units — Seconds

Disable Forward Run/Disable Reverse Run	Direct Access Number —	F311
Program ⇒ Frequency Setting Parameters ⇒ Forward/Reverse	Parameter Type — Check Box
Disable	Factory Default — Disabled
This parameter Enables/Disables the Forward Run or Reverse Run mode.	Changeable During Run — No
If either direction is disabled (box checked), commands received for the
disabled direction will not be recognized.
If both directions are disabled (both boxes checked), the received direction
command will determine the direction of the motor rotation.
Settings:
Disabled
Enabled
Scan Rate	Direct Access Number —	F312
Program ⇒ Protection Parameters ⇒ Retry/Restart	Parameter Type — Numerical
In the event of a momentary power outage, the output signal of the drive will	Factory Default — (ASD-dependent)
cease. Upon restoration of power, the drive will output a low-level signal that	Changeable During Run — No
will be used to determine the rotation speed of the rotor.	Minimum — 0.50
The low-level signal will start scanning the motor at FH and decrease until it
	Maximum — 2.50
reaches 0.0 Hz or it matches the signal produced by the turning rotor. Once the
rate of rotation is determined, the drive will provide the normal output to
engage the motor from its present speed.
This parameter determines the rate at which the scanning signal goes from FH
to 0.0 Hz. See F301 for additional information on this parameter.
Lock-on Rate	Direct Access Number —	F313
Program ⇒ Protection Parameters ⇒ Retry/Restart	Parameter Type — Numerical
After a momentary power outage, the ASD may have to startup into a spinning	Factory Default — (ASD-dependent)
motor. The Lock On Rate is the difference between the time that the RPM of	Changeable During Run — No
the motor is determined by the ASD and the time that the ASD outputs a drive	Minimum — 0.50
signal to the motor.

Maximum — 2.50

See F301 for additional information on this parameter.

114 G7 ASD Operation Manual