Zone
Zone
INPUTS & OUTPUTS
VCB-X Controller Field Technical Guide
56
VCB-X Controller and Expansion Module Input/Output Maps
Input/Output Map
See
Table 2
for the VCB-X Controller’s Input/Outputs,
Table 3
for
the VCB-X EM1 Expansion Module’s Inputs/Outputs, and
Table 4
for the VCB-X EM2 Expansion Module’s Inputs/Outputs.
VCB-X CONTROLLER
Analog Inputs
1
Space Temperature (AI1)
2
Supply Air Temperature (AI2)
3
Outside Air Temperature (AI3)
4
Discharge Temperature (For Digital Compressor)
(AI4)
5
Space Slide Offset (AI5)
Binary Inputs
1
Emergency Shutdown (BI1)
2
Proof of Flow (BI2)
3
Dirty Filter (BI3)
4
Defrost Coil Temperature Switch (BI4)
Analog Outputs (0-10 VDC)
1
Fan VFD (AOUT1)
2
Economizer (Outdoor Air Damper) (AOUT2)
3
Modulating Heating (Hot Water, Steam, or SCR)
(AOUT3)
Binary Outputs (24 VAC)
1
Fan Relay (R1)
2
Confi gurable Relay (R2)
3
Confi gurable Relay (R3)
4
Confi gurable Relay (R4)
5
Confi gurable Relay (R5)
6
Confi gurable Relay (R6)
7
Digital Compressor Unloader Triac (TR1)
Table 2: VCB-X Controller Inputs & Outputs
The following E-BUS sensors and modules are available
to connect to the VCB-X Controller via E-BUS ports or E-BUS
Expansion Modules:
1. E-BUS Digital Room Sensor - LCD Display - Temp Only or
Temp & Humidity
2. E-BUS Digital Room Sensor - No LCD Display - Temp &
Humidity
3. E-BUS Space and Return Air CO
2
Sensors
4. E-BUS connection to EBTRON, GreenTrol and Paragon
Air Flow Stations
5. E-BUS Outside Air Temperature & Humidity Sensor
6. Suction Pressure Transducer with E-BUS Adapter Board
Table 3: VCB-X EM1 Inputs & Outputs
VCB-X EM1 EXPANSION MODULE
Analog Inputs
1
Static Pressure (AI1)
2
Return Air Temperature (T1)
3
Leaving Water Temperature (T2)
4
Head Pressure 2 (T3)
5
Building Pressure (SIG1)
6
Head Pressure 1 (SIG2)
Binary Inputs
1
Hood On/Off (BIN1)
2
Remote Forced Occupied/Unoccupied (BIN2)
3
Proof of Water Flow (BIN3)
Analog Outputs (0-10 VDC)
1
Exhaust Fan VFD (AOUT1)
2
Chilled Water (AOUT2)
3
Condenser 2 (AOUT3)
4
Condenser 1 (AOUT4)
PWM+/- Output
1
Condenser Fan
Binary Outputs (24 VAC)
1
Confi gurable Relay (R1)
2
Confi gurable Relay (R2)
3
Confi gurable Relay (R3)
4
Confi gurable Relay (R4)
5
Confi gurable Relay (R5)
Revised 7/17/14
VCB-X EM2 EXPANSION MODULE
Analog Input (Confi gurable 0-10 VDC)
1
Economizer Feedback/Remote SAT Reset (AIN1)
Binary Inputs
1
Remote Forced Cooling (BIN1)
2
Remote Forced Heating (BIN2)
3
Remote Forced Dehumidifi cation (BIN3)
Analog Outputs (0-10 VDC)
1
Return Air Damper (AOUT1)
2
Return Air Bypass Damper (AOUT2)
Table 4: VCB-X EM2 Inputs & Outputs
