Rockwell Automation Liqui-Flo V2.0 AC Drive - Manual (Page 106)

106 Rockwell Automation Publication D2-3518-3 - May 2013
Chapter 9
Active stop mode. Stop Mode A is active unless Stop Mode B is selected by a
digital input.
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: You 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 A]
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...90.0 sec [0.1 sec]
Default: 0.0 sec
Access: 0 Path: Dynamic Control > Stop/Brake Modes
See also: 155...158