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Allen-Bradley 20-750-20COMM PowerFlex Carrier Kit
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- Part Number: 20-750-20COMM
- Brand: Allen-Bradley
- Type: Communication Modules
- Barcode: USA
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Product Description
Configured for option card adaptation and internal network module mounting in variable frequency drives, the Allen-Bradley 20-750-20COMM (20-750-20COMM Communication Adapter Carrier) provides direct physical/electrical execution. Operating as a dedicated carrier board inside the drive control pod, the module adapts standard PowerFlex 20-COMM network communication option cards for integration into PowerFlex 750-Series AC drives (Frame 2 and higher). Data routing and power connections are maintained across the internal backplane bus via physical multi-pin board interconnects.
Suffix Breakdown & Model Matrix
| Suffix / Feature Code | Technical Specification / Configuration |
|---|---|
| 20-750 | PowerFlex 750-Series Drive Accessory Platform Architecture |
| 20COMM | 20-COMM Option Card Carrier Kit Adapter Interface |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 20-750-20COMM |
| Brand | Allen-Bradley |
| Origin | USA / Global Manufacturing |
| Weight | 0.15 lbs (0.07 kg) |
| Dimensions | Standard PowerFlex 750 Control Pod Carrier Slot Size |
| Operating Temp | -10 to 50 deg C |
| Power Consumption | Low-power passive interface (powered via drive control pod bus) |
| Compatibility | PowerFlex 750-Series Drives (Frame 2 and higher) |
| Supported Modules | 20-COMM Communication Adapters (e.g., 20-COMM-C, 20-COMM-E) |
| Mounting Type | Internal Control Pod Slot Mount |
Backplane Synchronization & Network Interfacing
The Allen-Bradley 20-750-20COMM establishes continuous backplane bus communication velocity between adapted legacy 20-COMM modules and the main processing engine of PowerFlex 750-Series drives. Onboard signal conditioning circuits ensure firmware flash compatibility and real-time data translation across EtherNet/IP, ControlNet, or DeviceNet networks. Galvanic isolation integrated within the carrier architecture prevents ground noise interference from affecting sensitive drive control loops.
Frequently Asked Questions
Q: Which PowerFlex drive frame sizes support the installation of this carrier card?
A: The carrier kit is designed specifically for installation in the control pod of PowerFlex 750-Series drives, covering Frame 2 and higher.
Q: Does the carrier kit require an independent 24 VDC power connection?
A: No, the 20-750-20COMM board receives all necessary operational power directly from the host drive's internal control pod backplane bus.
Field Installation Guidelines
Ensure main AC supply voltage to the host drive is disconnected and line capacitors are completely discharged prior to accessing the control pod. Insert the 20-750-20COMM carrier card into an available slot on the PowerFlex 750 control pod, pressing firmly until the retention latch snaps into position. Mount the chosen 20-COMM communication adapter directly onto the carrier board, verifying full contact on all edge connectors. Route all external communication cables through low-voltage panel wireways away from 480 VAC motor output conductors to mitigate electromagnetic interference.
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