Rockwell Automation 14C214 Bedienungsanleitung

Reliance and MinPak are trademarks of Rockwell Automation.

Dynamic Braking Kit

for FlexPak Plus and MinPak Plus DC Drives

Model Numbers 14C214, 14C215, 14C216

Instruction Manual D2-3378

Product Description

Installation of the Dynamic Braking kit enables a single-phase FlexPak™ Plus or MinPak™ Plus DC drive to

provide rapid, smooth stopping of the motor. If the Dynamic Braking kit is not used, the drive causes the motor

to coast to rest when the contactor opens.

The Dynamic Braking kit includes a resistor that is automatically switched across the motor’s armature when

the drive is stopped. The rotating mechanical energy of the motor is converted into electrical energy that is

rapidly dissipated as heat. The resistor is sized for infrequent stops, so time must be allowed between stops for

the heat to dissipate.

Important: The dynamic brake is not a mechanical holding brake. It will not hold the motor shaft in place. It will

not prevent the motor from turning once motion has stopped.

The Dynamic Braking kit must be rated for the drive’s horsepower and voltage rating, as shown in table 1. Refer

to your drive’s nameplate for the horsepower and voltage rating. The Dynamic Braking kit contents are also

listed in table 1.

!ATTENTION:Only qualified electrical personnel familiar with the construction and operation of

this equipment and the hazards involved should install, adjust, operate, and/or service this

equipment. Read and understand this manual and other applicable manuals in their entirety

before proceeding. Failure to observe this precaution could result in severe bodily injury or loss

of life.

Table 1 – Contents of the Dynamic Braking Kit

Description Quantity Kit Model Number and Rating Reliance Part Number

Dynamic Braking Resistor 1 14C214

1/4 to 1/2 HP @ 115 VAC

2 to 3 HP @ 230 VAC

63481-150QHC

1 14C215

3/4 HP @ 115 VAC 63481-150QCC

1 14C216

1/2 to 1-1/2 HP and 5 HP @ 230 VAC 63481-150QNC

Mounting Screw, 4-40 x 3/8 2 All 601741-74C

Instruction Manual 1 All D2-3378

Dynamic Braking Kit for FlexPak Plus and MinPak Plus DC Drives

Installing the Dynamic Braking Kit in a FlexPak Plus DC Drive

Important: Dynamic Braking kit installation procedures are different for FlexPak Plus drives and MinPak Plus

DC drives. This section describes installation in a FlexPak Plus drive. See the next section for

installation in a MinPak Plus drive.

Refer to your FlexPak Plus DC drive instruction manual for help locating and identifying drive components.

Step 1. Disconnect, lock out, and tag input power to the drive.

Step 2. Remove the drive cover.

Step 3. Verify that no voltage is present at the drive’s AC input terminals, L1 and L2.

Step 4. Mount the dynamic braking resistor in the upper right corner on the back of the FlexPak Plus auxiliary

panel. Use the two mounting screws provided.

Step 5. For all regenerative FlexPak Plus DC drives, and for non-regenerative FlexPak Plus DC drives

without a Reversing Contactor: Connect the dynamic braking resistor between the normally closed

(NC) contacts of the drive’s M-contactor (terminals 7 and 8). This places the resistor across the

motor’s armature (A1 and A2) when the M-contactor is de-energized. Refer to figures 1 and 2.

!ATTENTION:Do not install modification kits with power applied to the drive. Disconnect, lock

out, and tag all sources of incoming AC power to the drive before attempting such installation.

Verify that no voltage is present at the drive’s AC input terminals, L1 and L2. 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.

Dynamic Braking Kit for FlexPak Plus and MinPak Plus DC Drives

Figure 1 – Dynamic Braking Resistor Connections for Regenerative FlexPak Plus Drives

and Non-Regenerative FlexPak Plus Drives Without a Reversing Contactor

M-Contactor or

Forward Contactor

A1 A2

Dynamic Braking Resistor

Dynamic Braking Kit for FlexPak Plus and MinPak Plus DC Drives

Step 6. For non-regenerative FlexPak Plus DC drives with a Reversing Contactor: Connect the dynamic

braking resistor between the corresponding normally closed (NC) contacts on the forward contactor

and the reversing contactor. For example, connect the resistor between terminal 8 on the forward

contactor and terminal 8 on the reverse contactor. This places the resistor across the motor’s

armature (A1 and A2) when both contactors are de-energized. Refer to figures 3 and 4.

Figure 2 – Dynamic Braking Resistor Schematic for Regenerative Drives

and Non-Regenerative Drives Without a Reversing Contactor

A1 (+)

Forward

Contactor

Forward

Contactor

A2 (–)

Forward

Contactor

Dynamic Braking

Resistor

Forward

Contactor

DB 1

DB 2

Motor

45/52

Armature

Dynamic Braking Kit for FlexPak Plus and MinPak Plus DC Drives

Figure 3 – Dynamic Braking Resistor Connections for Non-Regenerative FlexPak Plus Drives With a Reversing Contactor

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Dynamic Braking Kit for FlexPak Plus and MinPak Plus DC Drives

Step 7. If a reversing contactor is installed, make sure jumper J9 is removed from the Regulator board (near

the top of board). See the FlexPak Plus DC drive instruction manual for jumper location.

Step 8. Verify the wiring of the Dynamic Braking resistor and that all connectors are securely fastened.

Step 9. Reattach the cover to the drive.

Step 10. Apply power and test the braking capability of the drive.

This completes installation of the Dynamic Braking kit for FlexPak Plus DC drives.

Figure 4 – Dynamic Braking Resistor Schematic for Non-Regenerative Drives with a Reversing Contactor

!ATTENTION:If a reversing contactor is installed, ensure jumper J9 is removed from the

Regulator board (near the top of board). Failure to observe this precaution could result in

damage to, or destruction of, the equipment.

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Dynamic Braking Kit for FlexPak Plus and MinPak Plus DC Drives

Installing the Dynamic Braking Kit in a MinPak Plus DC Drive

Important: Dynamic Braking kit installation is different for FlexPak Plus and MinPak Plus DC drives. This

section describes how to install the Dynamic Braking kit in a MinPak Plus DC drive. Refer to the

previous section for installation in a FlexPak Plus DC drive.

Refer to your MinPak Plus DC drive instruction manual for help locating and identifying drive components.

Unless otherwise noted, the following steps must be performed on all MinPak Plus drives.

Step 1. Disconnect, lock out, and tag input power to the drive.

Step 2. Remove the drive cover.

Step 3. Verify that no voltage is present at the drive’s AC input terminals, L1/181 and L2/182.

Step 4. Remove the two screws from the terminal block and circuit breaker mounting bracket. Position this

bracket up and out of the way as far as possible.

Step 5. Regenerative MinPak Plus only: Loosen the auxiliary mounting bracket and the M-contactor. Move

them aside.

Step 6. Locate the two small drilled holes near the upper right of the chassis.

Step 7. Position the Dynamic Braking kit so that the longer lead is toward the right side of the chassis. Mount

it with the two mounting screws provided.

Step 8. For all regenerative MinPak Plus DC drives and non-regenerative MinPak Plus DC drives

without a Reversing Contactor: Connect the dynamic braking resistor to the normally closed (NC)

contacts of the drive’s M-contactor. These contacts are to the rear of the M-contactor. This places the

resistor across the motor’s armature when the M-contactor is de-energized. Refer to figures 2 and 5.

Step 9. For non-regenerative MinPak Plus DC drives with a Reversing Contactor: Connect the dynamic

braking resistor between corresponding normally closed (NC) contacts on the forward contactor and

the reversing contactor. These contacts are to the rear of the contactors. This places the resistor

across the motor armature (A1 and A2) when the contactors are de-energized. Refer to figures 4

and 6.

Step 10. Verify the wiring of the Dynamic Braking resistor. Make sure connectors are securely fastened.

Step 11. Reattach the terminal barrier and circuit breaker mounting bracket removed in step 4.

Step 12. Reattach the cover to the drive.

Step 13. Apply power and test the braking capability of the drive.

This completes the installation of the Dynamic Braking Kit for the MinPak Plus DC drives.

!ATTENTION:Do not install modification kits with power applied to the drive. Disconnect, lock

out, and tag all sources of incoming ACpower to the drive before attempting such installation.

Verify that no voltage is present at the drive’s AC input terminals, L1/181 and L2/182. 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

internationalcodes.Failuretoobservethis precautioncould resultindamageto,ordestruction

of, the equipment.

Figure 5 – Dynamic Braking Resistor Connections for MinPak Plus Drives Without a Reversing Contactor

Figure 6 – Dynamic Braking Resistor Connections for MinPak Plus Drives With a Reversing Contactor

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U.S. Drives Technical Support

Tel: (1) 262.512.8176, Fax: (1) 262.512.2222, Email: [email protected], Online: www.ab.com/support/abdrives

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