106 G7 ASD Operation Manual
DC Injection Braking Time
Program ⇒ Protection Parameters ⇒ DC Braking
This parameter is used to set the on-time duration of the DC Injection
Braking.
Direct Access Number — F252
Parameter Type — Numeri cal
Factory Default — 1.00
Changeable During Run — Yes
Minimum — 0.00
Maximum — 10.00
Units — Seconds
Motor Shaft Fixing Control
Program ⇒ Protection Parameters ⇒ DC Braking
This parameter determ ines if DC Injection braking is to be used during a
change in the direction of the motor.
Settings:
Box checked (Enabled)
Box not checked (Disabled)
Direct Access Number — F253
Parameter Type — Check Box
Factory Default — Disabled
Changeable During Run — Yes
Motor Shaft Stationary Control
Program ⇒ Protection Parameters ⇒ DC Braking
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 start s 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 n on-zero entry at F250.
Settings:
Box checked (Enabled)
Box not checked (Disabled)
Direct Access Number — F254
Parameter Type — Check Box
Factory Default — Disabled
Changeable During Run — Yes
0 Hz Command Function
Program ⇒ Special Control Parameters ⇒ Special Para meter s ⇒ Dead
Band of 0 Hz Frequency
This parameter selects the go-to-zero met hod to be used by the ASD when the
ASD is commanded to go to zero Hz.
Settings:
Standard (DC Injection Braking)
0 Hz Command
Direct Access Number — F255
Parameter Type — Selection List
Factory Default — Standard (DC
Injection Brakin g)
Changeable During Run — No
F252 F255