AAON ASM01626 Mini Link PD 5 User Guide
- September 14, 2024
- AAON
Table of Contents
AAON ASM01626 Mini Link PD 5
Specifications
- Product Name: MiniLink PD 5
- Part Number: ASM01626
- Compatibility: VCCX-454 Series, VCCX/VCCX-IP Series
- Communication: RS-485
- Architecture: Token Passing
- Power Requirement: 24 VAC
- Revision: Rev. D, June 21, 2024
FAQs
- Q: What should I do if I observe polarity issues with the board?
- A: Ensure correct polarity to prevent damage to the board. Refer to the manual for proper polarity orientation.
- Q: How do I download the manual for the MiniLink PD 5?
- A: The manual is available for download on the manufacturer’s website at www.aaon.com.
PRODUCT INFORMATION
PT-LINK II BACNET5 TECHNICAL GUIDE
REVISION AND DATE| CHANGE
Rev. C, October 2, 2020|
Rev. D, June 21, 2024| updated wiring, updated board, updated compatibility
notes, updated format
PRODUCT NAME PARTS REFERENCE
PART DESCRIPTION| PART NUMBER
MiniLink PD 5| ASM01626
AAON Unit Controllers| Varies
Pressure Dependent VAV/Zone BACnet® Controller| ASM02426
®Pressure Independent VAV/Zone BACnet Controller| ASM02427
Power/Comm Board| ASM02224
VAV/Zone Power/Comm Modular Adapter| ASM02188
For Previous Generation VAV/Zone Controllers w/ Power/Comm Connections|
Contact Factory
GENERAL INFORMATION
Overview and Features
The MiniLink PD 5 is an RS-485 communications device that is used to integrate multiple local RS-485 communication loops into an RS-485 network communications system. See Figure 1, for dimensions.
NOTE: Boards produced after 2024 will no longer have modular connections. Use either the terminal wiring diagram or the modular-to-terminal conversion wiring diagram for connecting these newer boards.
- The MiniLink PD 5 is required on the Orion Control system to separate local loops. Up to 60 MiniLink loops can be on a system.
- Local loop terminals of the MiniLink PD 5 are designed to connect to controllers that are daisy-chained together on its RS-485 local communications loop.
- Network RS-485 loop terminals on the MiniLink PD 5 are used to daisy-chain multiple MiniLinks back to a CommLink 5 to form a network communications loop. This provides for a fully networked RS-485 communications system.
- The MiniLink PD 5 is required for VAV systems to allow information to be shared between the HVAC Unit Controller and the VAV/ Zone BACnet® Controllers (VAVZB).
- It is also required for zoning systems to facilitate voting of the zones to determine the HVAC units heating and cooling mode of operation. It also provides tenant logging capabilities.
Features
- The MiniLink PD 5 utilizes token-passing communication architecture. The MiniLink PD 5 is designed to serve as the local communications loop master.
- This means that it is responsible for sending the token to all the controllers on the local communications loop.
- Network communications are RS-485 type operating at 19,200 or 115,200 baud. Local communications are also RS-485 type and operate at 9600 or 57,600 baud. See Figure 2.
- The MiniLink PD 5 is factory default set to low speed. The baud rate is set with dipswitches 7 & 8. See Figure 3.
Dimensions and Mounting
Environmental Requirements: The MiniLink PD 5 needs to be installed in an environment that can maintain a temperature range between -30°F and 150°F and a humidity range between 0% and 95% RH (non-condensing).
Mounting: The MiniLink PD 5 is housed in a plastic enclosure. It is designed to be mounted by using the 3 mounting holes in the enclosure base. It is important to mount the device in a location that is free from extremely high or low temperatures, moisture, dust, and dirt. Be careful not to damage the electronic components when mounting the MiniLink PD 5. The printed circuit board plastic cover has a UL94V0 flame rating.
Figure 1: MiniLink PD 5 Dimensions
CONFIGURATION
Address Dipswitch Setting
Note: The power to the Minilink must be removed and reconnected after changing the address switch settings for any changes to take effect.
Figure 2: Address Dipswitch Setting
Network and Local Loop Baud Rate Settings
Note: The MiniLink PD 5 is factory set to low speed.
Note: The power to the MiniLink must be removed and reconnected in order
for a Baud Rate change to take effect.
| BAUD | NETWORK LOOP SWITCH 7 | SPEED |
|---|---|---|
| 115,200 | ON | HIGH* |
| 19,200 | OFF | LOW** |
| BAUD | LOCAL LOOP SWITCH 8 | SPEED |
| 57,600 | ON | HIGH*** |
| 9600 | OFF | LOW**** |
Figure 3: Network and Local Loop Baud Rate Settings
APPENDIX A: TERMINAL WIRING
Terminal Wiring
Note: For MiniLink modules produced on or after 2024, this is the only method for wiring local or network loops.
Figure 4: Terminal Wiring (Legacy MiniLink shown)
APPENDIX A: TERMINAL WIRING
Networked Single RS-485 Loop Wiring (VCCX2 and VCCX-IP Series Controllers) Typical Single Loop Networked System With MiniLink Polling Device & VAV/Zone BACnet (VAVZB) Controllers
Figure 5: Network Single RS-485 Loop Wiring (VCCX2 and VCCX-IP series controllers)
APPENDIX A – TERMINAL WIRING
Networked Multiple RS-485 Loop Wiring
Typical Multiple Loop Networked System With MiniLink Polling Device & VAV/Zone BACnet (VAVZB) Controllers
Figure 6: Network Multiple RS-485 Loop Wiring
APPENDIX B – MODULAR WIRING
Power/Comm Board Wiring
NOTE: The MiniLink PD 5 will connect to a Power/Comm Board Only If Power/Comm Cables are Used to Daisy-Chain Between VAV/Zone Controllers.
Figure 7: Power Comm Board Wiring
APPENDIX B – MODULAR WIRING
Modular Wiring – Legacy MiniLink PD 5
Figure 8: Modular Wiring – Legacy MiniLink PD 5
APPENDIX B – MODULAR WIRING
Networked Multiple RS-485 Loop Modular System Wiring
Typical Networked Multiple Loop Modular System with MiniLink Polling Devices & VAV/Zone Controllers
Figure 9: RS-485 Networked Multiple Loop Modular System Wiring (Legacy MiniLink Module)
APPENDIX C – CONVERSION WIRING
Modular to Terminal Wiring Conversion
NOTE: Models manufactured on/after 2024 are not configured for modular wiring Refer to the following diagram to convert modular wiring to terminal wiring.
WARNING: Disconnect power and communications at both ends . Cutting a live cable could lead to injury or damage to the equipment.
Figure 10: RS-485 Networked Multiple Loop Modular System Wiring (Legacy MiniLink Module)
CONTACT INFROMATION
- MiniLink PD 5 Technical Guide
- G042660 · Rev. D · 240621
- AAON Controls Support: 866-918-1100
- Monday through Friday, 7:00 AM to 5:00 PM Central Time
- Controls Support website:www.aaon.com/aaon-controls-technical-support
- AAON Factory Technical Support: 918-382-6450
- techsupport@aaon.com
- NOTE: Before calling Technical Support, please have the model and serial number of the unit available.
- PARTS: For replacement parts, please contact your local AAON Representative.
- 2425 So. Yukon Ave
- Tulsa, OK • 74107-2728
- Ph: 918-583-2266
- Fax: 918-583-6094
- Rev. D
- Created in the USA © June 2024 AAON All Rights Reserved
- This manual is available for download from www.aaon.com.
- AAON, Inc.
- 2425 South Yukon Ave.
- Tulsa, OK 74107-2728
- www.aaon.com
Factory Technical Support Phone: 918-382-6450 Controls Support Phone: 866-918-1100 All rights reserved. © March 2022 AAON, Inc. AAON intends to provide accurate and current product information. However, in the interest of product improvement, AAON reserves the right to change the pricing, specifications, and/or design of its product without notice, obligation, or liability. AAON P/N: G042660, Rev. D AAON, Inc. assumes no responsibility for errors or omissions. This document is subject to change without notice. Windows® 10 is a registered trademark of Microsoft Corporation. BACnet® is a registered trademark of ASHRAE, Inc., Atlanta, GA.