Rockwell Automation Flex/WebPak 3000 DC Drive DB Kit, 1.5 HP-150 HP-230V, 3HP-600 HP-460V w/o NEMA1 - Manual (Page 5)

Dynamic Braking Kits for FlexPak 3000 and WebPak 3000 Digital DC Drives 5
Installing the Dynamic Braking Kit for 1.5 HP to 150 HP @ 230 VAC
and 3 HP to 300 HP @ 460 VAC Drives
Step 1. Turn off, lock out, and tag power to the drive.
Step 2. Determine where you will mount the Dynamic Braking kit. Typically, the Dynamic Braking kit mounts
on the roof of the drive cabinet or within the drive enclosure. Mount the kit components as required.
The supplied enclosure may be mounted over the resistor assembly, if desired. See figures 1 and 2 for
contactor and dynamic braking resistor assembly mounting dimensions.
Step 3. Follow the wiring diagram in figure 3 to connect the motor armature, the DB contactor, and the DB
resistor assembly to the drive.
Step 4. Install the supplied suppressor (P/N 600686-33A) across the contactor coil. This suppressor is
resistor 2SSR shown across the DB coil in figure 3.
Step 5. Remove the jumper from the Field/DB terminal block on the drive (terminals 3 to 4). See figure 3.
Connect the auxiliary contactor (DB AUX), terminals 13 and 14, to terminals 3 and 4, respectively, on
the Field/DB terminal block.
Step 6. Connect the user-supplied 115 VAC control power to the Dynamic Braking contactor (DBCR) and
control circuit (Field/DB terminal block, terminals 1 and 2) as shown in figure 3. The control power
continuous and inrush VA requirements are listed at the end of this manual in table 5.
Step 7. Remove the lockout and tag from the power to the drive.
Step 8. Turn on power to the drive.
!
ATTENTION: Only qualified personnel familiar with the construction and operation of this
equipment and the hazards involved should install, operate, and/or service this equipment. Read
and understand this instruction manual in its entirety before proceeding. Failure to observe this
precaution could result in severe bodily injury or loss of life.
ATTENTION: The drive is at line voltage when connected to incoming AC power. Disconnect,
tag and lockout all incoming power to the drive before performing the following procedure. Failure
to observe this precaution could result in severe bodily injury or loss of life.
ATTENTION: The user is responsible for conforming with all applicable local, national, and
international codes. Failure to observe this precaution could result in damage to, or destruction
of, the equipment.
!
ATTENTION: DB resistors may be extremely hot. Install in an enclosure or provide adequate
clearance to ensure that nothing can come in direct contact with, or in proximity to, the DB
resistors. Failure to observe this precaution can result in severe burns and damage to, or
destruction of, the equipment.