Installation & wiring, Zone, Figure 15: zoning bypass damper actuator wiring – Orion System VCM-X Modular E-BUS User Manual

Page 18: Figure 14: supply fan vfd wiring

Zone

INSTALLATION & WIRING

VCM-X Modular E-BUS Controller Technical Guide

Supply Fan VFD Signal or Zoning

Bypass Damper Actuator Signal

The Supply Fan VFD or Zoning Bypass Damper Actuator Signal is a
0-10 VDC output. This signal output can be connected to the Supply
Fan Variable Frequency Drive to modulate the Supply Fan speed and
control Duct Static Pressure utilizing the Duct Static Pressure Sensor
connected to the VCM-X E-BUS Controller. Alternatively, it can be
connected to a Zoning Bypass Damper Actuator that will modulate the
Zoning Bypass Damper Actuator to control Duct Static Pressure utiliz-
ing the Duct Static Pressure Sensor connected to the VCM-X E-BUS

Supply Fan VFD Signal and Zoning Bypass Damper Actuator

Controller. A Duct Static Pressure Sensor must be connected in order
for the VFD or Zoning Bypass Damper Actuator to operate. See Figures
14 and 15 below for detailed wiring.

Caution: Variable Frequency Drive units can cause large transient
noise spikes which can cause interference to be propagated on other
electronic equipment. Use shielded wire wherever possible and route
all sensor and controller wiring away from the Variable Frequency
Drive and the HVAC Unit electrical wiring.

Figure 15: Zoning Bypass Damper Actuator Wiring

Supply Fan Variable Frequency Drive

(By Others)

0-10VDC Input From AO2

Shield

GND

Caution:

The VFD Unit Must Be Configured For 0-10 VDC Input.
The Input Resistance At The VFD Must Not Be Less
Than 1000 Ohms When Measured At The VFD
Terminals With All Input Wires Removed.

Note:

Wire To The VFD Using 18 GA Minimum 2
Conducter Twisted Pair With Shield Cable.
Wire Shield To GND As Shown

AO2

GND

Shield

VCM-X E-BUS Controller

AI1

AI1 SET

AI2 SET

AI3 SET

AI4 SET

AI5 SET

AI7 SET

AI2

AI3

AI4

AI5

AI7

Bypass Damper Actuator

(Belimo Actuator Shown)

0-10 VDC

24 VAC Power Source

Sized For Actuator VA Load

GND

24 VAC

3 (Y)

5 (U)

2 (+)

1 (-)

Belimo Actuator Wiring

Shown. Consult Factory For

Other Manufacturer Wiring

Instructions