Toshiba G7 manual Overvoltage Stall, Motor #1 Max Output Voltage, Supply Voltage Compensation

F305 F309

Overvoltage Stall

Program ⇒ Protection Parameters ⇒ Stall

This parameter Enables/Disables the Overvoltage Stall function. When enabled, this function causes the drive to extend the decel time when the DC bus voltage increases due to transient voltage spikes, regeneration, supply voltage out of specification, etc. in an attempt to reduce the bus voltage.

Settings:

Enabled

Disabled

Enabled (Forced Shorted Deceleration)

Direct Access Number — F305

Parameter Type — Selection List

Factory Default — Enabled

Changeable During Run — Yes

Motor #1 Max Output Voltage	Direct Access Number —	F306
Program ⇒ Motor Parameters ⇒ Motor Set #1	Parameter Type — Numerical
This parameter sets the maximum value of the output voltage of the drive. The	Factory Default — (ASD dependent)
	Changeable During Run — Yes
Motor #1 Maximum Output Voltage is the Motor #1 output voltage at the
Base Frequency (F014). Regardless of the programmed value, the output	Minimum — 0.0
voltage cannot be higher than the input voltage.	Maximum — 600.0
The actual output voltage will be influenced by the input voltage of the ASD	Units — Volts
and the Supply Voltage Compensation setting (F307).
Supply Voltage Compensation	Direct Access Number —	F307
Program ⇒ Protection Parameters ⇒ Base Frequency Voltage	Parameter Type — Check Box
This parameter Enables/Disables the Voltage Compensation function. This	Factory Default — Enabled
	Changeable During Run — No
function provides an output waveform adjustment that compensates for changes
in the input voltage.
Settings:
Box checked (Enabled)
Box not checked (Disabled)
Dynamic Braking Resistance	Direct Access Number —	F308
Program ⇒ Protection Parameters ⇒ Dynamic Braking	Parameter Type — Numerical
This parameter is used to input the resistive value of the Dynamic Braking	Factory Default — (ASD-dependent)
	Changeable During Run — No
Resistor.
For additional information on selecting the proper resistance value for a given	Minimum — 1.0
application contact Toshiba’s Marketing Department.	Maximum — 1000.0
Note: Using a resistor value that is too low may result in system	Units — Ω

damage.

Dynamic Braking Resistance Capacity

Program ⇒ Protection Parameters ⇒ Dynamic Braking

This parameter is used to input the wattage of the Dynamic Braking Resistor.

For additional information on selecting the proper resistor wattage value for a given application contact Toshiba’s Marketing Department.

Note: Using a resistor with a wattage rating that is too low may result in system damage.

Direct Access Number — F309

Parameter Type — Numerical

Factory Default — (ASD-dependent)

Changeable During Run — No

Minimum — 0.01

Maximum — 600.0

Units — kW

G7 ASD Operation Manual 113