Toshiba W7 Computer Drive User Manual


 
W7 ASD Installation and Operation Manual 129
ST Terminal Delay
Program Terminal Settings Terminal Delays Input Terminal
Delays
ST Terminal Delay
This parameter delays the response of the ASD to any change in the ST
terminal input by the programmed value (see waveforms at
FL Off Delay).
The delay may be increased to provide additional electrical noise immunity or
to prevent the ASD from responding to contact bounce or chatter.
Parameter Type — Numerical
Factory Default — 8.0
Changeable During Run — No
Minimum — 2.0
Maximum — 200.0
Units — mS
Switch-on-the-Fly
Program Special Control Switch-on-the-Fly
The ability to switch between the Manual and Auto modes while running.
Settings:
Disabled
Enabled
Maintain Motion
Seamless
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — No
Torque Boost #1
Program Motor Settings Torque Boost #1
The Motor #1 Torque Boost function is used to increase the low frequency
torque for high-inertia loads by increasing the output voltage at frequencies
below ½ of the #1 Base Frequency setting.
The value programmed as a boost percentage establishes an output voltage vs.
output frequency relationship to be used to start the motor or to provide
smoother operation.
Note: Setting an excessive Torque Boost level may cause nuisance
tripping and mechanical stress to loads.
Parameter Type — Numerical
Factory Default — (ASD-dependent)
Changeable During Run — Yes
Minimum — 0.00
Maximum — 30.0
Units — %
Torque Boost #2
Program Motor Settings Torque Boost #2
The Motor #2 Torque Boost function is used to increase the low frequency
torque for high inertia loads by increasing the output voltage at frequencies
below ½ of the #2 Base Frequency setting).
This parameter is used only when the parameters for motor set #2 are
configured and selected. Motor set #2 may be selected by a properly configured
input terminal.
See parameter Motor #1 Torque Boost for more information on this setting.
Parameter Type — Numerical
Factory Default — (ASD-dependent)
Changeable During Run — Yes
Minimum — 0.0
Maximum — 30.0
Units — %
ST Terminal Delay Torque Boost #2