Toshiba W7 - Manual (Page 138)

132 W7 ASD Installation and Operation Manual
Type Reset
Program ⇒ Utilities ⇒ Type Resets
This feature assists the user when performing fault analysis or by allowing a
quick system setup change when required. Performing a Type Reset results in
one of the following user-selected post-reset configurations.
Settings:
Auto Setup for 50 Hz
Auto Setup for 60 Hz
Restore Factory Defaults
Clear Past Trips
Clear Run Timer
New Base Drive Board
Save User Parameters
Restore User Settings
Upgrade Firmware
Set EOI Memory to Default
Parameter Type — Selection List
Factory Default — No Reset
Changeable During Run — No
Undervoltage Detection Time
Program ⇒ Protection Settings ⇒ Undervoltage Detection Time
This parameter sets the time that the undervoltage condition must exist to cause
an Undervoltage Trip when this function is enabled at the Undervoltage Trip
parameter.
Parameter Type — Numerical
Factory Default — 0.03
Changeable During Run — No
Minimum — 0.00
Maximum — 10.00
Units — Seconds
Undervoltage Stall Level
Program ⇒ Protection Settings ⇒ Undervoltage Stall Level
This parameter sets the low end of the DC bus voltage threshold that, once it
drops below this setting, will activate the Ridethrough feature. Activation may
be the result of a momentary power loss or an excessive load on the bus
voltage. Once activated, the system will attempt to maintain the bus voltage
level set here until the motor stops.
Note: This feature may decrease deceleration times.
Parameter Type — Numerical
Factory Default — (ASD-dependent)
Changeable During Run — Yes
Minimum — 50.00
Maximum — 100.0
Units — %
Undervoltage Trip
Program ⇒ Protection Settings ⇒ Undervolt Trip
This parameter Enables/Disables the Undervoltage Trip function.
When enabled, if the DC bus voltage should exceed the setting of the
Undervoltage Stall level in excess of the duration set at the Undervoltage
Detection Time,
an Undervoltage Trip is incurred.
A user-selected contact may also be actuated if so configured.
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — No
Reset
Type Reset Undervoltage Trip