157 dc brake lvl sel, 158 dc brake level, 159 dc brake time – Rockwell Automation Liqui-Flo 1.5 General Purpose and Vector Duty User Manual
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LiquiFlo 1.5 AC Drive, Software Reference Version 1.2
Selects the source for DC Brake Level (158).
Defines the maximum DC brake current in percentage of drive rated current.
The DC braking voltage used in this function is created by a PWM algorithm and may
not generate the smooth holding force needed for some applications.
Sets the amount of time DC brake current is “injected” into the motor.
!
ATTENTION: The user must provide an external, hardwired emergency
stop circuit outside of the drive circuitry. This circuit must disable the
system in case of improper operation. Uncontrolled machine operation
may result if this procedure is not followed. Failure to observe this
precaution could result in bodily injury.
157
DC Brake Lvl Sel
Range:
0 = DC Brake Lvl
1 = Analog In 1
2 = Analog In 2
Default:
0 = DC Brake Lvl
Access:
0
Path: Dynamic Control>Stop/Brake Modes
See also:
155, 156, 158, 159
158
DC Brake Level
Range:
0 to (Rated Amps x 1.5) [0.1 Amps]
Default:
Rated Amps
Access:
0
Path: Dynamic Control>Stop/Brake Modes
See also:
157-159
!
ATTENTION: If a hazard of injury due to movement of equipment or
material exists, an auxiliary mechanical braking device must be used to
stop the motor. Failure to observe this precaution could result in severe
bodily injury or loss of life.
ATTENTION: This feature should not be used with synchronous or
permanent magnet motors. Motors may be demagnetized during braking.
Failure to observe this precaution could result in damage to, or
destruction of, the equipment.
159
DC Brake Time
Range:
0.0 to 90.0 sec [0.1 sec]
Default:
0.0 sec
Access:
0
Path: Dynamic Control>Stop/Brake Modes
See also:
155 - 158