DS2020PDMAG6 GE | Mark VIe Power Board | Fast Shipping

Description

Product Introduction

The GE DS2020PDMAG6 functions as the Power Distribution Module A (PDMA) within the Mark VIe control platform, providing intelligent power distribution with redundant power inputs, advanced diagnostics, and high-current capacity for critical turbine installations. This module interfaces with the Mark VIe controller via ISBus communication and distributes 24 V DC power from two independent input sources to up to 16 individual loads, each with configurable current limiting (0.5 A to 3 A per channel) and comprehensive diagnostic monitoring.

The model number breaks down as: PDMA (Power Distribution Module A), G6 (Generation 6). The primary differentiator is the combination of dual-input redundancy (automatic failover between two 24 V DC sources) and high-current capacity (3 A per channel, 24 A total)—the G6 provides the highest current capacity in the PDMA family with built-in input redundancy, eliminating the need for external transfer switches or redundant power distribution panels.

Key Technical Specifications

Key Selling Points & Differentiators

• Dual-Input Redundancy with Automatic Failover: Two independent 24 V DC inputs with automatic failover in <10 ms—eliminates single points of failure in the power distribution chain.
• High-Current Capacity: 3 A per channel, 24 A total—the highest capacity in the PDMA family, suitable for high-power loads (large solenoids, multiple actuators).
• Configurable Per-Channel Current Limiting: Each output has individually adjustable current limit (0.5-3.0 A) and selectable trip profiles—replaces fused panels with intelligent protection.
• Seamless Transfer: 5 ms transfer time with output hold-up ensures connected devices see no interruption during input source transitions.
• Input Source Monitoring: Reports voltage, current, and availability for both input sources—enables proactive maintenance of upstream power infrastructure.
• Comprehensive Per-Channel Diagnostics: Reports current draw, fault events, load degradation trends, and cycle counting per channel via ISBus.
• Full Live Test Certification: Each unit undergoes a 48-hour burn-in with full load testing (24 A total), input transfer testing (20 cycles), current limit calibration verification, and protection circuit validation. We log the MAC ID, current limit calibration data, transfer time, and diagnostic baselines for traceability.
• Direct Drop-In Replacement: Form-fit-function compatible with DS2020PDMAG1-G4 and earlier PDMA revisions. Existing wiring and terminal assignments remain unchanged (additional input terminals provided for secondary source).
• 90-Day Warranty: Includes technical support and cross-ship replacement within 24 hours if the module fails to provide regulated output, automatic transfer fails, protection circuits fail to trip at setpoints, or diagnostics report incorrect data.

Frequently Asked Questions (FAQ)

Q1: What’s the difference between the DS2020PDMAG6 and the DS2020PDMAG3?

The G6 has three major improvements: (1) dual-input redundancy with automatic failover (5 ms transfer), (2) higher per-channel current capacity (3 A vs. 2 A), and (3) higher total capacity (24 A vs. 16 A). The G6 also includes input source monitoring and transfer event logging. The G3 has a single input, lower per-channel current, and lower total capacity. Choose G6 for high-power, high-availability applications requiring redundant power distribution.

Q2: What’s the difference between the DS2020PDMAG6 and the DS2020LPPB312A?

Both modules provide redundant inputs, but they serve different purposes. The LPPB312A is a power supply that converts AC or higher-voltage DC to 24 V DC with dual inputs. The PDMA G6 is a distribution module that takes one or two 24 V DC inputs and distributes power to 16 outputs with configurable current limiting. The LPPB312A goes upstream (power conversion), while the PDMA G6 goes downstream (power distribution). They can be used together—the LPPB provides redundant 24 V DC, and the PDMA distributes it to loads.

Q3: The transfer event counter shows 8 events in one month—is that normal?

In industrial plants with unstable 24 V DC power sources, 8 transfer events in a month may be normal. The G6 is doing its job—keeping the outputs powered when the primary 24 V source fails. However, frequent transfers can indicate upstream power supply issues. Check: (1) voltage stability of the primary 24 V DC source, (2) wiring connections to both inputs, (3) upstream power supplies (e.g., LPPB or external supplies) for faults. The G6 reports input voltage data via ISBus, which can help diagnose the root cause.

Q4: Can I connect both inputs to the same 24 V DC source?

Technically yes, but this defeats the purpose of redundancy. If both inputs are connected to the same source, a failure of that source will cause both inputs to fail—the module will transfer but both inputs will be down. The G6 will report a “both inputs failed” condition and will continue operating on hold-up capacitance for about 20 ms before shutting down. For true redundancy, connect input 1 and input 2 to independent 24 V DC sources (e.g., two separate LPPB modules or separate battery strings).

Q5: What’s the maximum total current I can draw across all 16 channels?

The maximum total current is 24 A. For example, if you set 8 channels to 2 A each (16 A total) and 8 channels to 1 A each (8 A total), the total would be 24 A. The module will trip if total current exceeds 24 A for more than 10 seconds. If you need more than 24 A, use two PDMA G6 modules with separate 24 V inputs or use a single PDMA G6 with a higher-current external power source (though total capacity is limited to 24 A by the module’s design).

Q6: Does the G6 support hot-swapping of loads (connecting/disconnecting loads while powered)?

Yes. The PDMA G6 supports hot-swapping of loads. The output protection circuits are designed to handle inrush currents during connection. However, we recommend configuring the current limit profile to “slow-blow” for loads with high inrush (e.g., solenoids, capacitors). The slow-blow profile allows up to 3x the setpoint current for the configurable trip time (1-10 seconds), preventing nuisance tripping during connection. For sensitive electronics (e.g., sensors), use the “fast-blow” profile.

Q7: What’s the typical lead time for the PDMAG6, and do you recommend stocking spares?

The PDMAG6 is a specialized, moderate-volume module—we maintain 3-5 units in inventory. Standard lead time for orders of 1-3 units is 2-4 weeks due to the specialized dual-input testing and 48-hour burn-in. For critical turbines requiring redundant power distribution, we strongly recommend stocking one spare module per site. If you have a fleet of 10+ turbines, a 10% spare ratio is standard practice. If you need immediate delivery and the PDMAG6 is out of stock, consider the PDMAG3 as a substitute—it provides similar distribution but lacks redundant inputs and lower capacity. Call our support line for expedited options.

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