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F254
Motor Shaft Stationary Control
Program
Protection Parameters
⇒
This parameter Enables/Disables a continuous DC injection at half of the
amperage setting of
F251
into a stopped motor. This feature is useful in
preheating the motor or to keep the rotor from spinning freely.
Motor Shaft Stationary Control starts after the DC injection brake stops the
motor and continues until ST – CC is opened, power is turned off, receiving an
Emergency Off command, or this parameter is changed.
Enabling this feature will also require a non-zero entry at F250.
0 Hz Command Function
Program
⇒
Special Control Parameters
Band of 0 Hz Frequency
This parameter selects the go-to-zero method to be used by the ASD when the
ASD is commanded to go to zero Hz.
Settings:
Standard (DC Injection Braking)
0 Hz Command
H7 ASD Operation Manual
DC Braking
⇒
⇒
Special Parameters
Direct Access Number — F254
Parameter Type — Check Box
Factory Default — Disabled
Changeable During Run — Yes
Direct Access Number — F255
⇒
Dead
Parameter Type — Selection List
Factory Default — Standard (DC
Injection Braking)
Changeable During Run — No
F255
103
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Troubleshooting
