AAON Orion Control Systems MiniLink PD 5 Quick start guide

MiniLink PD 5
Technical Guide

MINILINK PD 5
PART DESCRIPTION AAON P/N
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
www.aaon.com
AAON, Inc.
2425 South Yukon Ave.
Tulsa, OK 74107-2728
www.aaon.com
Factory Technical Support Phone: [phone]
Controls Support Phone: [phone]
AAON P/N: G042660, Rev. 01C
Copyright October 2020 AAON, Inc.
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.
This manual is also available for download from our
website—www.aaon.com/communicationdevices—
where you can always nd the latest literature updates.

MiniLink PD 5 Technical Guide 3
TABLE OF CONTENTS
OVERVIEW........................................................................................................................ 4
Features .................................................................................................................................................. 4
Dimensions.............................................................................................................................................. 5
Environmental Requirements .................................................................................................................... 5
Mounting.................................................................................................................................................. 5
CONFIGURATION .............................................................................................................. 6
Address Dipswitch Setting....................................................................................................................... 6
Network Loop & Local Loop Baud Rate Selection................................................................................... 7
APPENDIX A - TERMINAL WIRING ................................................................................... 8
MiniLink PD 5 Terminal Wiring................................................................................................................. 8
Networked Single Loop Wiring with VAV/Zone BACnet®......................................................................... 9
Networked Multiple Loop Wiring with VAV/Zone BACnet®..................................................................... 10
APPENDIX B - MODULAR WIRING .................................................................................. 11
Power/Comm Board Wiring .................................................................................................................. 11
MiniLink PD 5 Modular Wiring ............................................................................................................... 12
Networked Multiple Loop Modular System Wiring ................................................................................ 13

MiniLink PD 5 Technical Guide
4
OVERVIEW
Overview & Features
Features
The MiniLink PD 5 utilizes token passing communication ar-
chitecture. 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 commu-
nications 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, page 6.
The MiniLink PD 5 is factory default set to low speed. The baud
rate is set with dipswitches 7 & 8. See Figure 3,page 7.
Overview
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,
page 5 for dimensions.
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 con-
nect 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 infor-
mation 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.

MiniLink PD 5 Technical Guide
5
OVERVIEW
Dimensions & Mounting
Figure 1: MiniLink PD 5 Dimensions
PD DRV
LOOP DRV
NET DRV
PIC32 MLPD
YS102398 REV 3
NETWORK
LOCAL
PD COMM
POWER
COMM ML
PD
MADE IN USA
SERIAL #
C22
C23
C30
C37
C40
J1
J3
R1
R2
R3
R4 R20
R21
R22
R23
R24
R25
R26
R27
R31
PDSTAT1
PDSTAT2
TB1
TB2
U8
U10
U12
D4
J6
J7J8
R43
R44
R46
C33
T
SH
R
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
.1uF
.1uF
.1uF
.1uF
1002 1002
T
SH
R
C24
COMM
5.6
5.05
2.07
4.1
5.96
0.66
2.73
0.29
1
2
4
8
16
32
SW2
OFF
LOOP
NET
ON FOR
HI SPD
ADDRESS
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 extreme 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 ame rating.

MiniLink PD 5 Technical Guide
6
CONFIGURATION
Address Dipswitch Setting
Figure 2: Address Dipswitch Setting
NOTE: The Power To The MiniLink Must Be Removed
And Reconnected After Changing The Address Switch
Settings In Order For Any Changes To Take Effect.
1
2
4
8
16
32
SW2
OFF
LOOP
NET
ON FOR
HI SPD
ADDRESS
Address Dipswitch Setting
MINILINK PD 5
16
32
NET
LOOP
8
4
2
1
Address Switch Shown Is
Set For Address 1
Address Switch Shown Is
Set For Address 13
Controller
Address Switch
Address 1
ADD
ADD
ADD
The Address For Each MLPD5
Must Be Unique To The Other
On The Network Loop And Be Between 1 and 60.
MLPD5s
16
32
NET
LOOP
8
4
2
1
Address 13
ADD

MiniLink PD 5 Technical Guide
7
CONFIGURATION
Figure 3: Baud Rate Setting
Network Loop & Local Loop Baud Rate Settings
Address Switches Show NET & LOOP
Set To ON for High Speed
Controller
Address Switch
NOTE: The MiniLink PD 5 Is Factory Set
to Low Speed.
1
2
4
8
16
32
SW2
OFF
LOOP
NET
ON FOR
HI SPD
ADDRESS
1
2
4
8
16
32
SW2
OFF
LOOP
NET
ON FOR
HI SPD
ADDRESS
NET & LOOP Set To
High Speed
Network Loop & Local Loop Baud Rate Settings
MINILINK PD 5
NOTE: The Power To The MiniLink Must
Be Removed And Reconnected In Order
ForABaud Rate Change To Take Effect.
*** The Local Loop (Switch 8) must be set to High Speed if it is connected to a loop
that ONLY includes VCB-X or VCC-X Controllers and/or any current or future
generation controllers set to high speed
****The Local Loop (Switch 8) must be set to Low Speed if it is being used on a
system that includes the VCM-X Controller, older generation Orion Controllers, or
any current controllers set to low speed.
115,200 ON HIGH*
19,200 OFF LOW**
57,600 ON HIGH***
9600 OFF LOW****
BAUD
Address Switches Show NET & LOOP
Set To OFF for Low Speed
Controller
Address Switch
1
2
4
8
16
32
SW2
OFF
LOOP
NET
ON FOR
HI SPD
ADDRESS
NET & LOOP Set To
Low Speed
NETWORK
LOOP
SWITCH 7
BAUD
SPEED
SPEED
LOCAL
LOOP
SWITCH 8
* The Network Loop (Switch 7) must be set to High Speed if it is connected to a loop
that includes a CommLink 5 set to High Speed.
**The Network Loop (Switch 7) must be set to Low Speed if it is being used on a
system that includes a CommLink 5 set to Low Speed.

MiniLink PD 5 Technical Guide
8
APPENDIX A - TERMINAL WIRING
Figure 4: MiniLink PD 5 Terminal Wiring
MiniLink PD 5 Terminal Wiring
R
RSH
SH
T
T
Connect Local Loop
Terminals To T, SH & R
Local Loop Terminals On
First Controller On Local
Loop. Be Sure To Wire TTo
T, SH To SH & RTo R.
NOTE: This Network Wiring Is Not
Required On Single Loop Systems
Without A CommLink. When A
CommLink Is Used On Single Loop
Systems, Connect Network Loop
Wire Terminals To The CommLink.
GND
18-30 VAC
CAUTION:
Disconnect All Communication Loop Wiring
From The MiniLink Before Removing Power
From The Controller. Reconnect Power And
Then Reconnect Communication Loop Wiring.
24 VACTransformer
Size For 6 VA Max. Load
Some Installers Like To Use One Large 24 VACTransformer
To Power Several Devices. This Is Allowable As Long As
Polarity Is Maintained To Each Device On The Transformer
Circuit.
Using Separate Transformers Also Allows Redundancy In
Case Of ATransformer Failure. Instead Of Having 8 Devices
Inoperative Because Of A Malfunctioning Transformer,You
Have Only 1 Device Off Line.
WARNING: If Polarity Is Not Maintained, Severe Damage
To The Devices May Result. AAON Recommends
Using A Separate Transformer For Each Device In Order
To Eliminate The Potential For Damaging Devices Due To
Incorrect Polarity.
CAUTION:
Disconnect All Communication Loop Wiring
From The MiniLink Before Removing Power
From The Controller. Reconnect Power And
Then Reconnect Communication Loop Wiring.
MINILINK PD 5
PD DRV
LOOP DRV
NET DRV
PIC32 MLPD
YS102398 REV 3
NETWORK
LOCAL
PD COMM
POWER
COMM
ML
PD
MADE IN USA
SERIAL #
C22
C23
C30
C37
C40
J1
J3
R1
R2
R3
R4 R20
R21
R22
R23
R24
R25
R26
R27
R31
PDSTAT1
PDSTAT2
TB1
TB2
U8
U10
U12
D4
J6
J7J8
R43
R44
R46
C33
T
SH
R
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
.1uF
.1uF
.1uF
.1uF
1002 1002
T
SH
R
C24
COMM
1
2
4
8
16
32
SW2
OFF
LOOP
NET
ON FOR
HI SPD
ADDRESS
NOTE: All Communication Wiring Must Be Plenum-rated, Minimum
18-gauge, 2-conductor,Twisted Pair With Shield Wire. AAON Can
Supply Communication Wire That Meets This Specification And Is
Color Coded For The Network Or Local Loop. The Local Loop Wire
Is Color Coded With Green Candy Striping And Comes On A 1000
Ft. Spool. The Network Is Color Coded With Red Candy Striping
And Comes On A 500 Ft. Spool. If Desired, 18-Gauge Minimum
Belden #82760 Or Equivalent Communications Wire May Also Be
Used For Network Or Local Loop Wiring.
For Modular Wiring, see page 12.
For Modular Wiring, see .page 12

MiniLink PD 5 Technical Guide
9
APPENDIX A - TERMINAL WIRING
Figure 5: MiniLink PD 5 RS-485 Networked Single Loop Wiring
Networked Single RS-485 Loop Wiring
Note: Multiple VAV/Zone BACnet Controllers Can Be Connected To A Single Transformer If
Desired. However Polarity Must Be Observed Or Damage To The Controller(s) Will Result. Please Refer To The
®
VAV/Zone BACnet
Controller Package Technical Guide
®
For
Transformer Sizing.
SHLD
T
R
Typical Terminal Blocks. All Wiring To Be T To T, SHLD (G) To SHLD (G) & R To R
T
G
R
RS-485 LOOP
Typical Single Loop Networked System
With MiniLink Polling Device & VAV/Zone BACnet (VAVZB) Controllers
®
HVAC
Unit Controller
(VCCX2 shown)
Note: Either A Modular System Manager SD, Modular Service Tool SD, Or Computer With Prism 2 Software Installed Can Be Used To Program And Configure The Orion
System.
Modular Service
Tool SD
Local
Local
18-30 VAC
(6 VA)
MiniLink PD 5
PDDRV
LOOPDRV
NETDRV
PIC32 MLPD YS102398 REV 3
NETWORK
LOCAL
PDCOMM
POWER
1 2 4 8 16 32
COMM
ADDRESS
ML
PD
MADE IN USA
SERIAL #
C22 C23
C30
C37
C40
J1
J3
R1
R2
R3 R4 R20
R21
R22 R23
R24
R25 R26
R27
R31
PDSTAT1
PDSTAT2SW2
TB1
TB2
U8
U10
U12
D4
J6
J7J8
R43
R44
R46
C33
OFF
T SH R
1002 1002 1002 1002 1002
1002 1002 1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
.1uF
.1uF
.1uF
.1uF
1002 1002
T
SH
R
C24
COMM
Line Voltage
18-30 VAC
(15 VA)
Modular System Manager SD
System Manager TS-L
Note: The SMTS-L Is An End-User Interface Only. It Cannot Be Used To Configure The Controllers.
Line
Voltage
System Manager TS-L
(Back View)
18-30 VAC
(6 VA)
RS T+
BLACK (R)
Connect To
T, SH, R
Terminals On
HVAC Unit
Controller
RED (18-30 VAC)
BROWN (GND)
WHITE (T)
BARE (S)
.1uF
YS102178R4 WQVGAGraphicalInterface
WattMasterControls,Inc
C24
R9
R7
R6
R5
R2
R1
C51
C39
C20
C19
C15
C14
C13
C12C11
C10
C9
C7
C1
X3
8.00Mhz
OFF
1002
1002 1002
1002 1002
1002 1002 1002 1002 1002
1002
1002 1002 1002
1002
1002
1002
1002 1002
1002 1002
1002
1002
1002 1002
1002
1002
1002 1002
1002 1002 1002 1002
1002 1002
.1uF
.1uF
.1uF .1uF
.1uF
.1uF
.1uF
.1uF
.1uF .1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
1002
.1uF
1002
1002
.1uF
.1uF
.1uF
.1uF
LTC3824
1002
1002
1002 1002
1002
1002
66.000Mhz
MADEIN USA
330uF50V 330uF
1002
SERIAL#
OPT4
OPT3
OPT2
OPT1
TERM
RTC
YS102178R4 WQVGAGraphicalInterface
WattMasterControls,Inc
CAL
5V 3.3V 2.5V
J3
R34R16
R13R8
R39
X2
R26 R17
R14
C24
U13
R49
R48
R47
R46
R45
R44
R43
R40
R37
R35
R32R31
R29
R27 R24 R22
R12
R11
R10
R9
R7
R6
R5
R2
R1
L5
L4
D12
D11
D1
C51
C50
C45
C41
C39
C36
C20
C19
C18
C17
C16
C15
C14
C13
C12C11
C10
C9
C8
C7
C6
C5 C4
C1
J1
R41
C23
C25
C26
R42
X3
R20
C27
C34C40
U10
U11
C28
C29
R18
C35
D2
L1
R25
C31
R19
U9
R28
C32R30
R33
C30
R15Q2
R21 R23
SW1
C2C3
V1
R36
1002
RST+
1002
R T
5V
GND
TERMTERM
For Stand Alone Applications Both Jumpers Must Be ON
4
GB
Modular System Manager SD
(Back View)
VAV/Zone
BACnet (VAVZB)
Controller
Package
®VAV/Zone
BACnet (VAVZB)
Controller
Package
®
Line
Voltage
Line
Voltage
Line
Voltage
18-30 VAC
(10 VA)
18-30 VAC
(10 VA)
18-30 VAC
(10 VA)
Connect To Next
VAV/Zone BACnet Controller
On Local Loop
®
Line
Voltage
VAV/Zone
BACnet (VAVZB)
Controller
Package
®

MiniLink PD 5 Technical Guide
10
APPENDIX A - TERMINAL WIRING
Figure 6: MiniLink PD 5 RS-485 Networked Multiple Loop Wiring
Networked Multiple RS-485 Loop Wiring
VAV/Zone
BACnet (VAVZB)
Controller
Package
®
VAV/Zone
BACnet (VAVZB)
Controller
Package
®
VAV/Zone
BACnet (VAVZB)
Controller
Package
®
Connect To Next
VAV/Zone BACnet Controller
On Local Loop
®
Network
Connect To
Loop 2
HVAC Unit
Controller &
VAV/Zone
BACnet
®
Controllers Connect To Loop 3
MiniLink PD 5
110 VAC To
24 VAC
Power Pack
Note: CommLink Must Be Set For Multiple Loop Operation
With MiniLink Polling Devices & VAV/Zone BACnet (VAVZB) Controllers
®
Typical Multiple Loop Networked System
Note: Multiple VAV/Zone BACnet Controllers Can Be Connected To A Single Transformer If Desired. However,
Polarity Must Be Observed Or Damage To The Controller(s) Will Result. Please Refer To The
®
VAV/Zone
BACnet Controller Package Technical Guide
®For
Transformer Sizing.
Modular Service
Tool SD
HVAC
Unit Controller
(VCCX2 shown)
Note: Either A Modular System Manager SD, Modular Service Tool SD, Or Computer With Prism 2 Software Installed Can Be Used To Program And Configure The Orion System.
Network
Local
Local
18-30 VAC
(6 VA)
MiniLink PD 5 Loop 1
PDDRV
LOOPDRV
NETDRV
PIC32 MLPD YS102398 REV 3
NETWORK
LOCAL
PDCOMM
POWER
1 2 4 8 16 32
COMM
ADDRESS
ML
PD
MADE IN USA
SERIAL #
C22 C23
C30
C37
C40
J1
J3
R1
R2
R3 R4 R20
R21
R22 R23
R24
R25 R26
R27
R31
PDSTAT1
PDSTAT2SW2
TB1
TB2
U8
U10
U12
D4
J6
J7J8
R43
R44
R46
C33
OFF
T SH R
1002 1002 1002 1002 1002
1002 1002 1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
.1uF
.1uF
.1uF
.1uF
1002 1002
T
SH
R
C24
COMM
Network
Network
Local
18-30 VAC
(6 VA)
MiniLink PD 5 Loop 2
PDDRV
LOOPDRV
NETDRV
PIC32 MLPD YS102398 REV 3
NETWORK
LOCAL
PDCOMM
POWER
1 2 4 8 16 32
COMM
ADDRESS
ML
PD
MADE IN USA
SERIAL #
C22 C23
C30
C37
C40
J1
J3
R1
R2
R3 R4 R20
R21
R22 R23
R24
R25 R26
R27
R31
PDSTAT1 PDSTAT2SW2
TB1
TB2
U8
U10
U12
D4
J6
J7J8
R43
R44
R46
C33
OFF
T SH R
1002 1002 1002 1002 1002
1002 1002 1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
.1uF
.1uF
.1uF
.1uF
1002 1002
T
SH
R
C24
COMM
Line Voltage
18-30 VAC (15 VA)
Modular System Manager SD
System Manager TS-L
Note: The SMTS-L Is An End-User Interface Only. It Cannot Be Used To Configure The Controllers.
Line
Voltage
System Manager TS-L
(Back View)
18-30 VAC (6 VA)
RS T+
BLACK (R)
Connect To
T, SH, R
Terminals On
HVAC Unit
Controller
RED (18-30 VAC)
BROWN (GND)
WHITE (T)
BARE (S)
.1uF
YS102178R4 WQVGAGraphicalInterface
WattMasterControls,Inc
C24
R9
R7
R6
R5
R2
R1
C51
C39
C20
C19
C15
C14
C13
C12C11
C10
C9
C7
C1
X3
8.00Mhz
OFF
1002
1002 1002
1002 1002
1002 1002 1002 1002 1002
1002
1002 1002 1002
1002
1002
1002
1002 1002
1002 1002
1002
1002
1002 1002
1002
1002
1002 1002
1002 1002 1002 1002
1002 1002
.1uF
.1uF
.1uF .1uF
.1uF
.1uF
.1uF
.1uF
.1uF .1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
1002
.1uF
1002
1002
.1uF
.1uF
.1uF
.1uF
LTC3824
1002
1002
1002 1002
1002
1002
66.000Mhz
MADEIN USA
330uF50V 330uF
1002
SERIAL#
OPT4
OPT3
OPT2
OPT1
TERM
RTC
YS102178R4 WQVGAGraphicalInterface
WattMasterControls,Inc
CAL
5V 3.3V 2.5V
J3
R34R16
R13R8
R39
X2
R26 R17
R14
C24
U13
R49
R48
R47
R46
R45
R44
R43
R40
R37
R35
R32R31
R29
R27 R24 R22
R12
R11
R10
R9
R7
R6
R5
R2
R1
L5
L4
D12
D11
D1
C51
C50
C45
C41
C39
C36
C20
C19
C18
C17
C16
C15
C14
C13
C12C11
C10
C9
C8
C7
C6
C5 C4
C1
J1
R41
C23
C25
C26
R42
X3
R20
C27
C34C40
U10
U11
C28
C29
R18
C35
D2
L1
R25
C31
R19
U9
R28
C32R30
R33
C30
R15Q2
R21 R23
SW1
C2C3
V1
R36
1002
RST+
1002
R T
5V
GND
TERMTERM
For Stand Alone Applications Both Jumpers Must Be ON
4
GB
Modular System Manager SD
(Back View)
Line
Voltage
Line
Voltage
Back View of CommLink 5
Front View of CommLink 5
MULTIPLE
HIGH
SINGLE
LOW
BAUD
R (+)
SHLD
T (-)
SERIAL #
24VAC
GND
LOOP
2D
BARCODE
SOFTWARE
18-30 VAC
(10 VA)
Line
Voltage
18-30 VAC
(10 VA)
Line
Voltage
Line
Voltage
18-30 VAC
(10 VA)
SHLD
T
R
Typical Terminal Blocks. All Wiring To Be T To T, SHLD (G) To SHLD (G) & R To R
T
G
R
RS-485 LOOP

MiniLink PD 5 Technical Guide
11
APPENDIX B - MODULAR WIRING
Power/Comm Board Wiring
Figure 7: Power/Comm Board Wiring
A Power/Comm Cable Can Be Used
To Connect With The MiniLink PD
5’s Local Loop Connection Instead
Of Using 2-Conductor Twisted Pair
With Shield Cable. You Can Also
Use A Power/Comm Cable To
Connect With Another Power/Comm
Board, A System Manager Or A
VAV/Zone Controller.
Power/Comm Cable To Other Power/Comm Board(s),
System Manager, Or VAV/Zone Controllers On Local Loop Only.
If Desired, Instead Of Using A
Power/Comm Cable, You Can
Use 2-Conductor Twisted Pair
With Shield Cable To Connect
To The Power/Comm Board
From The Unit Controller,
MiniLink PD 5’s Local Loop
Connection, Or Another
Power/Comm Board.
Line Voltage
18-30 VAC
R
SH
T
R
SH
T
R
SH
T
R
SH
T
All Comm Loop Wiring Is
Straight Through
9600 or 57,600
Baud
Local Loop
RS-485
Local Loop RS-485
24 VACTransformer (By Others)
4 Amp Slow Blow Fuse
WARNING!
DO NOT GROUND THE 24V TRANSFORMER
THAT IS TO BE USED WITH THE POWER/COMM
BOARDS. GROUNDING OF THE TRANSFORMER
WILL DAMAGE THE POWER/COMM BOARD
AND ALL BOARDS CONNECTED TO IT.A
SEPARATE TRANSFORMER MUST BE USED
FOR EACH POWER/COMM BOARD. NO
EXCEPTIONS. DO NOT CONNECT ANY OTHER
DEVICES TO THE TRANSFORMER USED FOR
THE POWER/COMM BOARD!
NOTE: Diagram Shown Is For
Wiring Of Power/Comm Board
When Used For Connecting Local
Loop Devices Such As VAV/Zone
Controllers, System Manager(s),
and Other Power/Comm Boards.
CUS
R
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.

MiniLink PD 5 Technical Guide
12
APPENDIX B - MODULAR WIRING
MiniLink PD 5 Modular Wiring
Figure 8: MiniLink PD 5 Modular Wiring
GND
18-30 VAC
CAUTION:
Disconnect All Communication Loop Wiring
From The MiniLink Before Removing Power
From The Controller. Reconnect Power And
Then Reconnect Communication Loop Wiring.
24 VACTransformer
Size For 6 VA Max. Load
Some Installers Like To Use One Large 24 VACTransformer
To Power Several Devices. This Is Allowable As Long As
Polarity Is Maintained To Each Device On The Transformer
Circuit.
Using Separate Transformers Also Allows Redundancy In
Case Of ATransformer Failure. Instead Of Having 8 Devices
Inoperative Because Of A Malfunctioning Transformer,You
Have Only 1 Device Off Line.
WARNING: If Polarity Is Not Maintained, Severe Damage
To The Devices May Result. AAON Recommends
Using A Separate Transformer For Each Device In Order
To Eliminate The Potential For Damaging Devices Due To
Incorrect Polarity.
CAUTION:
Disconnect All Communication Loop Wiring
From The MiniLink Before Removing Power
From The Controller. Reconnect Power And
Then Reconnect Communication Loop Wiring.
MINILINK PD 5
PD DRV
LOOP DRV
NET DRV
PIC32 MLPD
YS102398 REV 3
NETWORK
LOCAL
PD COMM
POWER
COMM
ML
PD
MADE IN USA
SERIAL #
C22
C23
C30
C37
C40
J1
J3
R1
R2
R3
R4 R20
R21
R22
R23
R24
R25
R26
R27
R31
PDSTAT1
PDSTAT2
TB1
TB2
U8
U10
U12
D4
J6
J7J8
R43
R44
R46
C33
T
SH
R
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
.1uF
.1uF
.1uF
.1uF
1002 1002
T
SH
R
C24
COMM
1
2
4
8
16
32
SW2
OFF
LOOP
NET
ON FOR
HI SPD
ADDRESS
Connect Local Loop Comm
Cable To Power/Comm
Board (If Used).
On Multiple Loop Systems, Connect
Modular Cable To Next MiniLink’s
Network Comm Connector.

MiniLink PD 5 Technical Guide
13
APPENDIX B - MODULAR WIRING
Networked Multiple RS-485 Loop Modular System Wiring
Figure 9: MiniLink PD 5 RS-485 Networked Multiple Loop Modular System Wiring
Connect To Next
VAV/Zone
Controller
On Branch Circuit
Typical Networked Multiple Loop Modular System
With MiniLink Polling Devices & VAV/Zone Controllers
Power/Comm
Board
Line
Voltage
Connect To Modular I/O Connectors Located On Back Of The System Manager
Modular System Manager SD
TB2
VAC
F1
25
4A
24
SHLD
T
R
POWER
LD1
TB1
C1
POWER & COMM
DIST.BOARD
YS101856
REV. 0
P5
P4
P3
P1
D1
V1
R1
P2
COMMP IN
POWER & COMM
OUT
Connect To
Other VAV/Zone
Controllers
On Loop
Connect To
Other VAV/Zone
Controllers
On Loop
Connect To
Other VAV/Zone
Controllers
On Loop
Power/Comm
Board
Line
Voltage
Class 2 100 VA Max
24 VAC - Size
Transformer For
Required VA Load
Note: For VAV/Zone BACnet Controllers,A Maximum Of 4 Can Be Connected To Each Branch Circuit. ATotal Of 8 Controllers Are Allowed Per Power/Comm Board. Use Additional Power/Comm Boards For Systems That Exceed 8 Controllers.
®
For
Previous Generation VAV/Zone Controllers,A
Maximum Of 6 Can Be Connected To Each Branch Circuit. ATotal Of 16 Controllers Are Allowed Per
Power/Comm Board. Use Additional Power/Comm Boards For Systems That Exceed 16 Controllers.
TB2
VAC
F1
25
4A
24
SHLD
T
R
POWER
LD1
TB1
C1
POWER & COMM
DIST.BOARD
YS101856
REV. 0
P5
P4
P3
P1
D1
V1
R1
P2
COMMP IN
POWER & COMM
OUT
Connect To Loop 2 Power/ Comm Board & HVAC Unit Controller
110 VAC To
24 VAC
Power Pack
Note: CommLink Must Be Set For Multiple Loop Operation
HVAC
Unit Controller
(VCCX2 shown)
Modular Service
Tool SD
Back View of CommLink 5
Front View of CommLink 5
Note: Either A Modular System Manager SD, Modular Service Tool SD, Or PC With Prism 2 Software Installed Can Be Used To Program And Configure The Orion System.
System Manager TS-L
Network
Connect To Loop 3 MiniLink PD 5
Network
Local
Local
18-30 VAC
(6 VA)
MiniLink PD 5 Loop 1
PDDRV
LOOPDRV
NETDRV
PIC32 MLPD YS102398 REV 3
NETWORK
LOCAL
PDCOMM
POWER
1 2 4 8 16 32
COMM
ADDRESS
ML
PD
MADE IN USA
SERIAL #
C22 C23
C30
C37
C40
J1
J3
R1
R2
R3 R4 R20
R21
R22 R23
R24
R25 R26
R27
R31
PDSTAT1
PDSTAT2SW2
TB1
TB2
U8
U10
U12
D4
J6
J7J8
R43
R44
R46
C33
OFF
T SH R
1002 1002 1002 1002 1002
1002 1002 1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
.1uF
.1uF
.1uF
.1uF
1002 1002
T
SH
R
C24
COMM
Network
Network
Local
18-30 VAC
(6 VA)
MiniLink PD 5 Loop 2
PDDRV
LOOPDRV
NETDRV
PIC32 MLPD YS102398 REV 3
NETWORK
LOCAL
PDCOMM
POWER
1 2 4 8 16 32
COMM
ADDRESS
ML
PD
MADE IN USA
SERIAL#
C22 C23
C30
C37
C40
J1
J3
R1
R2
R3 R4 R20
R21
R22 R23
R24
R25 R26
R27
R31
PDSTAT1
PDSTAT2SW2
TB1
TB2
U8
U10
U12
D4
J6
J7J8
R43
R44
R46
C33
OFF
T SH R
1002 1002 1002 1002 1002
1002 1002 1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
.1uF
.1uF
.1uF
.1uF
1002 1002
T
SH
R
C24
COMM
18-30 VAC
(15 VA)
Note: The SMTS-L Is An End-User Interface Only. It Cannot Be Used To Configure The Controllers.
VAV/Zone Controller Package
(VAV/Zone w/ BACnet shown
w/ Modular Adapter
®
)
Line
Voltage
Line
Voltage
MULTIPLE
HIGH
SINGLE
LOW
BAUD
R (+)
SHLD
T (-)
SERIAL #
24VAC
GND
LOOP
2D
BARCODE
SOFTWARE
VAV/Zone Controller Package
(VAV/Zone w/ BACnet shown)
w/ Modular Adapter
®
ALARM
UP
DOWN
ENTERMENU
ALARM
UP
DOWN
ENTERMENU
Line Voltage
24 VAC - Size
Transformer For
Required VA Load
Class 2 100 VA Max
SHLD
T
R
Typical Terminal Blocks. All Wiring To Be T To T, SHLD (G) To SHLD (G) & R To R
T
G
R
RS-485 LOOP

MiniLink PD 5 Technical Guide
G042660 · Rev. 01C · 201012
2425 South Yukon Ave • Tulsa, OK • 74107-2728
Ph: [phone] • Fax: [phone]
AAON P/N: G042660, Rev. 01C
Printed in the USA • © October 2020 AAON®• All Rights Reserved
AAON Factory Technical Support: 918-382-6450
techsuppor[email protected]
AAON Controls Support: 866-918-1100
Monday through Friday, 7:00 AM to 5:00 PM
Central Standard Time.
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.