Supply Voltage Correction; Dynamic Braking Resistance; Continuous Dynamic Braking Capacity; Ridethrough Time - Toshiba H9 ASD Installation And Operation Manual

F307

Supply Voltage Correction

Program Protection Base Frequency Voltage
This parameter Enables/Disables the Voltage Compensation function.
When Enabled, this function provides a constant V/f ratio during periods of
input voltage fluctuations.
Settings:
0 — Disabled (Output Voltage Unlimited)
1 — Enabled (Supply Voltage Compensation)
2 — Disabled (Output Voltage Limited)
3 — Enabled (Supply Voltage Compensation w/Output Voltage Limited)

Dynamic Braking Resistance

Program Protection Dynamic Braking
This parameter is used to input the resistive value of the Dynamic Braking
Resistor being used.
Light-duty and heavy-duty resistors vary from a few ohms to several hundred
ohms. The appropriate resistance size will be typeform- and application-
specific.
See the section titled
more information on using the DBR system and for assistance in selecting the
appropriate resistor for a given application.
Note: Using a resistor value that is too low may result in system
damage.

Continuous Dynamic Braking Capacity

Program Protection Dynamic Braking
This parameter is used to input the wattage of the Dynamic Braking Resistor.
See the section titled
more information on using the DBR system.
Note: Using a resistor with a wattage rating that is too low may result
in system damage.

Ridethrough Time

Program Protection Retry/Restart
In the event of a momentary power outage, this parameter determines the length
of the Ridethrough time.
The Ridethrough will be maintained for the number of seconds set using this
parameter.
See parameter F302 for more information on the Ridethrough function.
Note: The actual Ridethrough Time is load-dependent.
H9 ASD Installation and Operation Manual
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
Dynamic Braking System Specifications on pg. 266
Dynamic Braking System Specifications on pg. 266
Direct Access Number — F307
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — No
Direct Access Number — F308
Parameter Type — Numerical
Factory Default — (ASD-Dependent)
Changeable During Run — No
Minimum — 0.5
Maximum — 1000.0
Units — 
for
Direct Access Number — F309
Parameter Type — Numerical
Factory Default — (ASD-Dependent)
Changeable During Run — No
for
Minimum — 0.01
Maximum — 600.00
Units — kW
Direct Access Number — F310
Parameter Type — Numerical
Factory Default — 2.0
Changeable During Run — Yes
Minimum — 0.1
Maximum — 320.0
Units — Seconds
F310
137