Orion System VCM-X E-BUS Component - Manual (Page 16)

VCM-X Component & Systems Wiring 16
System Installation
Loop Containing VCM-X E-BUS Controller with Modular VAV/
Zone Controllers, MiniLink PD, and CommLink 5
1. Connect the CommLink 5 to the MiniLink PD by
using 2 conductor shielded cable to connect from the
CommLink 5’s 3 wire communications connector to
the MiniLink PD’s 3 wire communications connector
marked “Network Loop”. Use the 110 VAC/24 VAC
power supply furnished with the CommLink for its
power source. Be sure to maintain polarity on all boards.
The Loop switch on the back of the CommLink 5
should be set to “Multiple”. Also connect a 24 VAC 6
VA minimum transformer to the MiniLink PD power
terminals using 18 gauge minimum, 2 wire cable.
2. Connect all controllers in a daisy chain format
using 18 gauge, 2 conductor shielded cable for
communications. Using 18 gauge minimum, 2 wire
cable for power, install a 24 VAC, 8 VA minimum,
transformer for the VCM-X E-BUS Controller and wire
from the transformer to the VCM-X E-BUS Controller.
Using 18 gauge minimum, 2 wire cable for power, install
a separate 24 VAC transformer sized for the required
VA load for each Power/Comm Board on the loop and
wire from each transformer to its Power/Comm board.
Observe polarity on all boards.
3. Using 2 conductor shielded cable, connect from the
VCM-X E-BUS Controller’s 3 wire communications
connector to the MiniLink PD’s 3 wire communications
connector marked “Local Loop”. Use 18 gauge
minimum wire for power and observe polarity on
all boards.
4. Using a modular cable, connect from the MiniLink PD’s
modular connector marked “Local Loop” to a
Power/Comm board’s modular input connector.
5. Using modular cables, connect from the Power/Comm
board’s modular output connectors to the VAV/Zone
Controllers. The VAV/Zone Controllers connect together
using modular cables from each VAV/Zone Controller
to the next controller and/or to a Power/Comm board. A
maximum of 16 VAV/Zone Controllers are allowed per
Power/Comm board. If you have more than 16 VAV/
Zone Controllers, you will need multiple Power/Comm
boards. Each Power/Comm board must have its own
24 VAC transformer sized for the total number of VAV/
Zone Controllers connected to it.
6. The Modular System Manager can connect to any
VAV/Zone Controller or directly to one of the Power/
Comm board’s modular output connectors. The
Communications setting must be set to Lo Speed
Network Mode.
7. The System Manager TS II utilizes a 3 wire
communication terminal block for connection to any
controller on the communications local loop that has
communication wire terminals. Since you are using
Modular VAV/Zone Controllers, you can use a modular
pigtail connector that has a modular connector on one
end and stripped wires on the other to connect the
System Manger TS II to the Power/Comm board or
one of the Modular VAV/Zone Controllers. A separate
transformer is required for the System Manager TS II. It
has a 2 wire 24 VAC terminal block for connection to a
24 VAC transformer. The transformer should be sized to
provide 6 VA minimum power and should be connected
using 18 gauge minimum wire. In the Settings Menu,
enter <63> for the System Manager Address.
8. The Modular Service Tool SD will connect to any of the
controllers using the supplied cable with DIN connectors
on both ends. The connection point on the controller
is located near the communications connector. The
Communications setting must be set to Lo Speed
Network Mode.
9. Before powering up the controllers, set each VAV/
Zone Controller’s board address to a unique number
from 1 through 58. Address the VCM-X E-BUS
Controller at 59. Set MiniLink PD’s address at 1.
Note: Only communications, not power, is transferred
from the MiniLink Polling Device to the Power/
Comm board via the modular cable. Both power and
communications are transferred from the Power/
Comm board to the VAV/Zone Controllers and the
Modular System Manager.
Warning: Each Power/Comm board must have its own
24 VAC transformer for its power source.
This transformer cannot be shared with any
other board. Do not ground the transformer
that is connected to the Power/Comm board.
The transformer should be sized for the
required VA by using the information found
on pages 9-10 of this manual.
Loop Containing VCM-X E-BUS Controller with Non-Modu-
lar VAV/Zone Controllers, MiniLink PD, and CommLink 5
1. Connect the CommLink 5 to the MiniLink PD by
using 2 conductor shielded cable to connect from the
CommLink’s 3 wire communications connector to
the MiniLink PD’s 3 wire communications connector
marked “Network Loop”. Use the 110 VAC/24 VAC
power supply furnished with the CommLink for its
power source. Be sure to maintain polarity on all boards.
The Loop switch on the back of the CommLink 5
should be set to “Multiple”. Also connect a 24 VAC 6
VA minimum transformer to the MiniLink PD power
terminal using 18 gauge minimum, 2 wire cable.
Networked Single Loop