This document describes the PDC-0091V2ACIOA V100R001 Power Distribution Cabinet (PDC), a crucial component for managing power in Uninterruptible Power System (UPS) setups. The PDC, also referred to as a Power Distribution Unit (PDU), is designed to work with various Huawei UPS models, including UPS2000-G-6K/10KRTS, UPS2000-G-6K/10KRTL, and UPS2000-G-15K/20KRTL, supporting both three-phase input single-phase output and single-phase input single-phase output configurations.
Function Description
The PDC-0091V2ACIOA serves as a central point for power distribution, ensuring reliable and organized power delivery to connected equipment. It integrates multiple circuit breakers for input and output lines, bypass circuits, and maintenance bypass, enhancing system reliability and safety. The unit facilitates the connection of UPS systems to AC mains, AC loads, and provides communication ports for monitoring and control. Its design allows for flexible installation, either rack-mounted or tower-mounted, to suit different data center or equipment room layouts. The PDC manages power flow, protects against overcurrents, and provides a safe means for system maintenance through its bypass capabilities.
Important Technical Specifications
- Model: PDC-0091V2ACIOA
- Applicable UPS Models: UPS2000-G-6K/10KRTS, UPS2000-G-6K/10KRTL, UPS2000-G-15K/20KRTL (supporting Three-Phase Input Single-Phase Output and Single-Phase Input Single-Phase Output).
- Weight: 13 kg
- Dimensions (H x W x D): 130 mm x 430 mm x 585 mm
- Input/Output Circuit Breakers:
- UPS 1 Mains Input Circuit Breaker
- UPS 2 Mains Input Circuit Breaker
- UPS 1 Bypass Input Circuit Breaker
- UPS 2 Bypass Input Circuit Breaker
- UPS 1 Output Circuit Breaker
- UPS 2 Output Circuit Breaker
- Maintenance Bypass: Includes a dedicated circuit breaker and cover for safe maintenance operations.
- Output Sockets:
- Output socket group 1 (250 V AC, 15 A) with corresponding fuses.
- Output socket group 2 (250 V AC, 10 A) with corresponding fuses.
- Communication Ports: Control Area Network (CAN) communication ports for checking input and output voltage of the PDU.
- Cable Specifications (Examples):
- PDU AC output power cable:
- 6 mm² (1+1 UPS2000-G-6 KVA parallel system) / 10 mm² (1+1 UPS2000-G-10 KVA parallel system)
- 16 mm² (2+0 UPS2000-G-6 KVA parallel system) / 16 mm² (2+0 UPS2000-G-10 KVA parallel system)
- 16 mm² (1+1 UPS2000-G-15 kVA/20 kVA parallel system)
- PDU bypass input power cable:
- 6 mm² (1+1 UPS2000-G-6 KVA parallel system) / 10 mm² (1+1 UPS2000-G-10 KVA parallel system)
- 16 mm² (2+0 UPS2000-G-6 KVA parallel system) / 16 mm² (2+0 UPS2000-G-10 KVA parallel system)
- 16 mm² (1+1 UPS2000-G-15 kVA/20 kVA parallel system)
- PDU mains input power cable (for 1+1 UPS2000-G-15 kVA/20 kVA parallel system, three-phase input): 6 mm² (1+1 UPS2000-G-15 kVA/20 kVA parallel system)
- Maintenance bypass port cable: RVV 4 x 0.5
- CAN communications port cable: SBYV-100 4 x 2 x 0.5
- Cable for short-circuiting mains and bypass input N wiring terminals: 6 mm² (M4 to M6 terminals)
- Torque for Power Cables:
- UPS2000-G-6 KVA: M4 x 0.7p screw, 1.3 N-m torque
- UPS2000-G-10 kVA / UPS2000-G-15 kVA / UPS2000-G-20 kVA: M5 x 0.8p screw, 1.5 N-m torque
- PDU: M5 x 0.8p screw, 1.5 N-m torque
Usage Features
- Flexible Installation: The PDC supports both rack-mounting (19-inch rack) and tower-mounting configurations.
- Rack-mounting: Involves installing mounting brackets, then using either floating nuts with common guide rails or adjustable guide rails (optional) with floating nuts. The guide rails are marked 'R' for right and 'L' for left to prevent incorrect installation.
- Tower-mounting: Requires rotating the PDU front panel logo 90 degrees anticlockwise. Support bases are assembled and placed on the floor, with devices secured on them. The minimum distance between support bases is 280 mm. Rubber plugs are used to seal screw holes after tower-mounting.
- Cable Management: The PDU provides clearly labeled ports for UPS mains input, bypass input, output, and communication, facilitating organized cable connections. Instructions emphasize connecting cables from bottom to top for devices, and bottom to top for cables within a single device.
- Safety Precautions: The manual highlights critical safety measures, including using insulated tools, wearing insulation gloves, and using dry power fire extinguishers. It also provides warnings about potential hazards, equipment damage, and personal injury.
- Personnel Requirements: Only trained and qualified personnel are authorized to install, operate, and maintain the equipment.
- Movement Regulations: Specific guidelines are provided for moving the PDU based on its weight, with different recommendations for weights less than 18 kg, 18-32 kg, 32-55 kg, and greater than 55 kg. Users are cautioned not to move the PDU by holding its mounting brackets, front panel, or terminal cover.
- Cable Preparation: Detailed instructions are given for making OT terminals, including using hydraulic pliers of proper specifications, removing burrs, and insulating exposed metals with heat shrink tubing to prevent short circuits.
- Power-On Procedure: Refers to specific UPS quick installation guides for detailed power-on instructions, indicating a sequential process after all cables are properly connected.
Maintenance Features
- Maintenance Bypass Functionality: The PDC incorporates a maintenance bypass circuit, allowing the UPS to be taken offline for maintenance without interrupting power to the connected loads.
- Procedure: Involves opening the maintenance bypass circuit breaker cover, closing the maintenance bypass circuit breaker (circuit breaker 7), opening UPS input and output circuit breakers (circuit breakers 1-6), and disconnecting battery pack hot-swap terminals (if applicable).
- Alarm Monitoring: The system generates a "Maint. Breaker close" alarm, and the UPS transfers to bypass mode, which can be viewed through the PDU's interface.
- Voltage Verification: Users are instructed to use a multimeter to verify that UPS input and output voltages are 0 V before proceeding with maintenance, ensuring safety.
- Modular Design: The presence of separate circuit breakers for UPS 1 and UPS 2 mains input, bypass input, and output, along with distinct output socket groups, suggests a modular approach that simplifies troubleshooting and component replacement.
- Clear Labeling: The front and rear panels feature clear labeling for all ports, circuit breakers, and indicators, aiding in quick identification and maintenance tasks.
- Adjustable Support Base (Tower-mounting): The support base length is adjustable, and components can be added to increase its length, providing flexibility for different device configurations and ensuring stability during maintenance.