Allen-Bradley 1336-MOD-KC005 Dynamic Brake Kit

Product Details

1336-MOD-KC005 Product Description

The Allen-Bradley 1336-MOD-KC005 is a factory-engineered dynamic brake kit designed specifically for the 1336 FORCE and 1336 PLUS series AC variable frequency drives. In high-cycle industrial environments — from automotive assembly lines to continuous process plants — uncontrolled motor deceleration generates regenerative energy that, if not properly dissipated, feeds back into the DC bus and destabilizes the entire drive system. The 1336-MOD-KC005 resolves this by providing a dedicated resistive braking path that converts regenerative energy into controlled heat dissipation, protecting the drive, reducing thermal stress on the power stage, and enabling precise, repeatable stop cycles that are critical to production line synchronization.

Engineered to integrate directly into the 1336 drive's modular expansion architecture, this brake kit requires no external chopper module or additional wiring harness. It mounts within the drive enclosure, preserving panel space and maintaining the IP rating of the installation. For facilities operating multiple 1336 PLUS II or 1336 IMPACT drives across a common DC bus, the 1336-MOD-KC005 provides consistent braking torque across all connected axes, ensuring that deceleration profiles remain synchronized even under variable load conditions.

The 1336-MOD-KC005 operates as a critical energy management component within a broader Rockwell Automation control architecture. In a typical smart production line, the 1336 PLUS II drive — equipped with this brake kit — receives speed and torque commands from a ControlLogix L7x PLC via a 1756-DNB DeviceNet Scanner module. The PLC executes motion profiles stored in Studio 5000 Logix Designer, coordinating deceleration ramps across multiple drive axes. Without a properly rated dynamic brake kit, aggressive deceleration ramps cause DC bus voltage spikes that trigger drive faults, halting the entire line and wasting the energy already consumed to accelerate the load.

When integrated with a PowerMonitor 5000 power quality meter, the 1336-MOD-KC005's braking cycles become visible as controlled dissipation events rather than fault conditions. Operators monitoring the line through a PanelView Plus 7 HMI can observe real-time bus voltage stability and confirm that braking energy is being managed within safe thermal limits. For multi-axis systems, the 1336-MOD-KC005 works alongside 1336-MOD-KA series I/O expansion modules and 1336-BDB series external brake resistors to distribute thermal load across the panel, preventing localized overheating that degrades insulation and shortens drive service life.

In conveyor and hoist applications, the brake kit coordinates with 1336 FORCE drives controlling high-inertia loads. The 1336 FORCE's flux vector control algorithm calculates the precise braking torque required, and the 1336-MOD-KC005 provides the physical energy path to execute that torque command without stressing the drive's internal capacitor bank. This coordination is further supported by 1769-IQ16 CompactLogix digital input modules that monitor brake engagement status and feed position feedback from 845H incremental encoders back to the motion controller, closing the loop on deceleration accuracy.

For facilities using PROFIBUS DP or DeviceNet communication backbones, the 1336 drive's onboard communication adapter — such as the 1336-GM6 PROFIBUS adapter — transmits drive status, fault codes, and energy consumption data to the plant SCADA system in real time. This allows energy managers to correlate braking event frequency with production throughput data, identifying opportunities to optimize deceleration ramp rates and further reduce resistive energy losses over time.

Unmanaged regenerative braking is one of the most overlooked sources of energy waste and unplanned downtime in AC drive-intensive production environments. When a high-inertia load — such as a centrifuge, winding machine, or overhead crane — decelerates faster than the drive can absorb regenerative current, the DC bus voltage rises beyond the drive's overvoltage threshold. The drive trips on an OV fault, the line stops, and maintenance is called. Each fault event wastes the kinetic energy of the load, consumes technician time, and interrupts production rhythm. Over a three-shift operation, repeated OV faults can account for hours of lost production per month.

The 1336-MOD-KC005 eliminates this failure mode by providing a low-impedance dissipation path that activates the moment DC bus voltage exceeds the braking threshold. The resistive bank absorbs the regenerative current, holds the bus voltage within the drive's safe operating window, and allows the deceleration ramp to complete as programmed. The result is a production line that stops on schedule, every cycle, without fault interruptions. For facilities tracking OEE (Overall Equipment Effectiveness), eliminating OV-related stoppages directly improves availability scores and reduces the energy cost per unit produced.

From a thermal management perspective, the 1336-MOD-KC005's internal resistor bank is rated for the duty cycle of the 1336 series drive it accompanies. This means the brake kit dissipates heat at a rate matched to the drive's thermal envelope, preventing the panel temperature rise that degrades capacitor life and IGBT junction reliability. Facilities that have implemented the 1336-MOD-KC005 across their 1336 drive fleet report measurable reductions in drive replacement frequency and a corresponding decrease in spare parts inventory carrying costs.

For predictive maintenance programs, the brake kit's consistent performance provides a stable baseline for thermal imaging inspections. Infrared scans of panels equipped with the 1336-MOD-KC005 show uniform heat distribution during braking cycles, making it straightforward to identify anomalies — such as a resistor element approaching end of life — before they cause a fault. This supports condition-based maintenance strategies that reduce scheduled downtime and extend the interval between planned service events.

Q1: What energy saving benefit does the 1336-MOD-KC005 provide compared to operating without a dynamic brake kit? Without a dynamic brake kit, 1336 series drives must use extended deceleration ramps to avoid DC bus overvoltage faults, which slows production cycle times and increases motor heating during prolonged deceleration. The 1336-MOD-KC005 allows aggressive, precise deceleration ramps to be programmed without fault risk, reducing cycle time, lowering motor thermal load, and improving energy efficiency per production unit. It also eliminates the energy wasted in fault-recovery sequences — drive restart, conveyor repositioning, and operator intervention all consume energy and time.

Q2: Is the 1336-MOD-KC005 compatible with both the 1336 PLUS and 1336 FORCE drive families? Yes. The 1336-MOD-KC005 is designed for the 1336 modular accessory architecture shared by the 1336 FORCE, 1336 PLUS, 1336 PLUS II, and 1336 IMPACT drive families. It installs into the drive's internal option slot without requiring external wiring or a separate chopper module. Confirm your drive's horsepower rating and firmware revision against the 1336 product compatibility matrix before installation to ensure the brake resistor duty cycle is correctly matched.

Q3: What is the recommended replacement or upgrade path if the 1336-MOD-KC005 resistor bank shows signs of degradation? If thermal imaging or resistance measurement indicates resistor element degradation, the 1336-MOD-KC005 should be replaced as a complete kit to maintain factory-rated braking performance. For applications requiring higher braking duty cycles, consider supplementing with an external 1336-BDB brake resistor assembly, which provides additional thermal mass and extends the continuous braking capability of the system. NANKMOS maintains stock of both the 1336-MOD-KC005 and compatible external brake resistor assemblies for rapid replacement.

Q4: What does the 12-month warranty cover, and what is the testing process before shipment? Every 1336-MOD-KC005 unit shipped by NANKMOS carries a 12-Month Warranty covering manufacturing defects and component failure under normal operating conditions. Prior to shipment, each unit undergoes functional verification including resistance measurement of the brake resistor bank, continuity testing of all internal connections, and visual inspection for physical damage. Units that do not meet factory specifications are quarantined and not shipped. Warranty claims are processed through NANKMOS directly — contact [email protected] or +86 18359268345 for RMA authorization and technical support.