G7 ASD Operation Manual 113
Overvoltage Stall
Program ⇒ Protection Parameters ⇒ Stall
This parameter Enables/Disables the Overvoltage Stall function. When
enabled, this functio n causes the drive to extend the decel tim e when the DC
bus voltage increases due to transient vol tage spikes, regeneration, supply
voltage out of specification, etc. in an attem pt 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
Program ⇒ Motor Parameters ⇒ Motor Set #1
This parameter sets th e maximum value of t he output voltage of th e drive. The
Motor #1 Maximum Out p ut Voltage is the Motor #1 output voltage at the
Base Frequency (F014). Regardless of the programmed value, the output
voltage cannot be higher than the input voltage.
The actual output voltage will be influenced by the input voltage of the ASD
and the Supply Voltage Compensation setting (F307).
Direct Access Number — F306
Parameter Type — Numeri cal
Factory Default — (ASD dependent)
Changeable During Run — Yes
Minimum — 0.0
Maximum — 600.0
Units — Volts
Supply Voltage Compensation
Program ⇒ Protection Parameters ⇒ Base Frequency V oltage
This parameter Enables/Disables the Voltage Compensation function. This
function provides an output wavefo rm adjustment that compensates for changes
in the input voltage.
Settings:
Box checked (Enabled)
Box not checked (Disabled)
Direct Access Number — F307
Parameter Type — Check Box
Factory Default — Enabled
Changeable During Run — No
Dynamic Braking Resistance
Program ⇒ Protection Parameters ⇒ Dynamic Braking
This parameter is use d to input the resistiv e value of the Dynamic Braking
Resistor.
For additional information on selecting the proper resistance value for a given
application contact Toshiba’s Marketing Department.
Note: Using a resistor value that is too low may result in system
damage.
Direct Access Number — F308
Parameter Type — Numeri cal
Factory Default — (ASD-dependent)
Changeable During Run — No
Minimum — 1.0
Maximum — 1000.0
Units — Ω
Dynamic Braking Resistance Capacity
Program ⇒ Protection Parameters ⇒ Dynamic Braking
This parameter is used to input th e w at ta g e of the Dynamic Braking Resistor.
For additional information on selectin g the proper resistor wattage value for a
given application contact Toshiba’s Marketing Department.
Note: Using a resistor with a wattage rati n g th at is to o lo w may res u lt
in system damage.
Direct Access Number — F309
Parameter Type — Numeri cal
Factory Default — (ASD-dependent)
Changeable During Run — No
Minimum — 0.01
Maximum — 600.0
Units — kW
F305 F309