Allen-Bradley 20-750-20COMM Communication Carrier Card
The Allen-Bradley 20-750-20COMM, also cataloged as the 20-750-20COMM Communication Carrier Card, operates as a dedicated hardware component for physical option-slot interface expansion and network adapter integration within PowerFlex 755 drive platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 20-750-20COMM |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.56 lbs (0.26 kg) |
| Dimensions | Standard PowerFlex 750 Carrier Footprint |
| Operating Temp | 0 to 40 deg C |
| Storage Temp | 0 to 50 deg C |
| Operating Humidity | 80% RH, non-condensing |
| Operating Altitude | Up to 1000 m above sea level |
| Power Consumption | Host drive backplane powered |
| Compatible Drive Family | PowerFlex 755 Series |
| Supported Frame Sizes | Frame Size 2 or larger |
| Designated Interface Port | Port 6 |
Deterministic Network Communication & I/O Density
The 20-750-20COMM carrier card acts as the physical backplane bridge enabling 20-COMM series network option modules to interface deterministically with the PowerFlex 755 main control board via Port 6. Optimized internal backplane bus communication velocity allows high-throughput I/O density scaling and parameter synchronization between the drive control architecture and external EtherNet/IP deterministic networks. Firmware flash compatibility across connected option adapters ensures seamless data routing, maintaining deterministic cycle execution and preventing backplane buffer overflow during high-density cyclic data exchanges.
Frequently Asked Questions
Q: Can the 20-750-20COMM carrier card be installed in any available option slot within a PowerFlex 755 drive?
A: No. The 20-750-20COMM is designed for mounting into Port 6 of PowerFlex 755 drives (Frame Size 2 or larger) to correctly establish the physical and electrical connections with the internal drive backplane bus.
Q: Does the 20-750-20COMM require an external 24 VDC power supply connection?
A: No. The carrier card receives its necessary operating voltage directly through its backplane edge connector when installed into Port 6 of the host drive chassis.
Q: Are there environmental altitude restrictions when deploying the 20-750-20COMM in high-altitude panel locations?
A: Yes. The card is rated for continuous operation at altitudes up to 1000 meters above sea level without derating, under non-condensing relative humidity conditions not exceeding 80%.
Field Installation Guidelines
- Fully isolate all incoming mains AC power and 24 VDC auxiliary control power from the host PowerFlex 755 drive prior to accessing the internal control pod assembly.
- Verify internal drive DC bus capacitors are completely discharged using a calibrated voltmeter before touching internal components.
- Align the 20-750-20COMM carrier card guide rails precisely with Port 6 on the drive main control board and press firmly until the multi-pin backplane connector seats completely.
- Secure all retaining screws on the carrier assembly to ensure solid mechanical contact and high-frequency noise grounding to the drive chassis ground plane.
- Install the designated 20-COMM series communication module into the carrier card connector prior to re-energizing the host drive system.
Allen-Bradley 20-750-20COMM Communication Carrier Card
Allen-Bradley 20-750-20COMM Communication Carrier Card
The Allen-Bradley 20-750-20COMM, also cataloged as the 20-750-20COMM Communication Carrier Card, operates as a dedicated hardware component for physical option-slot interface expansion and network adapter integration within PowerFlex 755 drive platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 20-750-20COMM |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.56 lbs (0.26 kg) |
| Dimensions | Standard PowerFlex 750 Carrier Footprint |
| Operating Temp | 0 to 40 deg C |
| Storage Temp | 0 to 50 deg C |
| Operating Humidity | 80% RH, non-condensing |
| Operating Altitude | Up to 1000 m above sea level |
| Power Consumption | Host drive backplane powered |
| Compatible Drive Family | PowerFlex 755 Series |
| Supported Frame Sizes | Frame Size 2 or larger |
| Designated Interface Port | Port 6 |
Deterministic Network Communication & I/O Density
The 20-750-20COMM carrier card acts as the physical backplane bridge enabling 20-COMM series network option modules to interface deterministically with the PowerFlex 755 main control board via Port 6. Optimized internal backplane bus communication velocity allows high-throughput I/O density scaling and parameter synchronization between the drive control architecture and external EtherNet/IP deterministic networks. Firmware flash compatibility across connected option adapters ensures seamless data routing, maintaining deterministic cycle execution and preventing backplane buffer overflow during high-density cyclic data exchanges.
Frequently Asked Questions
Q: Can the 20-750-20COMM carrier card be installed in any available option slot within a PowerFlex 755 drive?
A: No. The 20-750-20COMM is designed for mounting into Port 6 of PowerFlex 755 drives (Frame Size 2 or larger) to correctly establish the physical and electrical connections with the internal drive backplane bus.
Q: Does the 20-750-20COMM require an external 24 VDC power supply connection?
A: No. The carrier card receives its necessary operating voltage directly through its backplane edge connector when installed into Port 6 of the host drive chassis.
Q: Are there environmental altitude restrictions when deploying the 20-750-20COMM in high-altitude panel locations?
A: Yes. The card is rated for continuous operation at altitudes up to 1000 meters above sea level without derating, under non-condensing relative humidity conditions not exceeding 80%.
Field Installation Guidelines
- Fully isolate all incoming mains AC power and 24 VDC auxiliary control power from the host PowerFlex 755 drive prior to accessing the internal control pod assembly.
- Verify internal drive DC bus capacitors are completely discharged using a calibrated voltmeter before touching internal components.
- Align the 20-750-20COMM carrier card guide rails precisely with Port 6 on the drive main control board and press firmly until the multi-pin backplane connector seats completely.
- Secure all retaining screws on the carrier assembly to ensure solid mechanical contact and high-frequency noise grounding to the drive chassis ground plane.
- Install the designated 20-COMM series communication module into the carrier card connector prior to re-energizing the host drive system.
