Orion System SA E-BUS Controller - Manual (Page 32)

Additional Applications
SA E-BUS Controller Technical Guide 32
SA E-BUS Controller to E-BUS Module Wiring
SA E-BUS Controller to E-BUS Module
Wiring
The SA E-BUS Controller connects to the E-BUS Modules using a modu-
lar HSSC cable. E-BUS Modules require a 24 VAC power connection
with an appropriate VA rating. See Figure 26 below for an example of
E-BUS Controller to E-BUS Module wiring.
The E-BUS Modules can be connected to the SA E-BUS Controller’s
E-BUS port or can be daisy-chained together using HSSC cables.
See Figures 27-28 for specifi c E-BUS Module wiring.
Figure 26: SA E-BUS Controller to E-BUS Module Wiring Diagram
HSSC Cable Connect To
SA E-BUS Controller Port
Line Voltage
All Comm Loop Wiring Is
Straight Thru
24VAC
GND
Local Loop
RS-485
9600 Baud
See Individual Component
Wiring Diagrams For
Detailed Wiring Of Analog
Inputs And Outputs
For Stand Alone Applications,
Connect To System Manager. For Network Applications
Connect To Next Controller And/Or MiniLink PD On Local
Loop.
G - Fan ON/OFF Only
R - 24VAC
Relay Output Contacts
R2 Through R5 May Be User-
Configured For The Following:
Note:
1 - Heating Stages
2 - Cooling Stages
3 - Warm-up Mode Command
(VAV Boxes)
4 - Reversing Valve (Air To Air Heat
Pumps)
5 - Reheat Control (Dehumidification)
6 - Preheater For Low Ambient Protection
7 - Alarm
8 - Override
9 - Occupied
10 - Water Side Economizer
A Total Of 20 Relays Are Available
By Adding Expansion Modules.
Expansion Module Relay Outputs Are
User-Configurable As Listed Above.
Connect FRP Tubing To High Pressure
Port (Bottom Tube) and Route To Static
Pressure Pickup Probe Located In Unit
Discharge. Leave Port Marked “Lo” Open
To Atmosphere
OE271
Static Pressure
Transducer
Splice If Required
Connect To Expansion Module
(When Used)
Connect To Digital Room Sensor - See Digital Room Sensor
Wiring Diagram.
Warning:
24 VAC Must Be Connected So That All Ground
Wires Remain Common. Failure To Do So Will
Result In Damage To The Controllers.
T to T, R to R & SHLD to SHLD
Size Transformer For Correct
Total Load.
SA Controller = 8 VA
SA E-BUS Controller
Note:
All Relay Outputs Are Normally Open And Rated
For 24 VAC Power Only.
1 Amp Maximum Load.
AI1 SET
AI2 SET
AI3 SET
AI4 SET
AI5 SET
AI7 SET
Jumpers
Note:
Only One SA Controller is Required Whether The SA Unit is a Single Cabinet Or Dual Cabinet Unit.
Additional Wiring For Dual Cabinet Units is Shown and Noted As Such On The Applicable Single
Cabinet Unit Diagrams.
IC DIGITAL
SENSOR
2 IC
EXPANSION
2 STATIC
PRESSURE
LED BLINK CODES
LED NAME STATUS1 STATUS2
NORMAL OPERATION 0 1
SAT FAIL 1 2
EAT FAIL 2 2
SPC FAIL 3 2
MECH COOL FAIL 1 3
MECH HEAT FAIL 2 3
FAN PROOF FAIL 3 3
DIRTY FILTER 4 3
WATER FLOW ALARM 6 3
DRAIN PAN ALARM 7 3
EMERGENCY SHUTDOWN 5 3
LOW SAT 1 4
HIGH SAT 2 4
CONT. TEMP COOL FAIL 3 4
CONT. TEMP HEAT FAIL 4 4
PUSH BUTTON OVR 1 5
ZONE OVR 2 5
OUTPUT FORCE ACTIVE 0 6
AI1 = SPC (SPACE TEMPERATURE SENSOR)
AI2
AI3
AI4
AI5
AI7
A01
A02
= SAT (SUPPLY AIR TEMPERATURE SENSOR)
= EWT (ENTERING WATER TEMPERATURE SENSOR)
= EAT (ENTERING AIR TEMPERATURE SENSOR)
= NOT USED
= SPACE TEMPERATURE SENSOR SLIDE ADJUST
OR VOLTAGE RESET SOURCE
= WATER SIDE ECONOMIZER VALVE 1A &1B (2-10 VDC)
= SUPPLY FAN VFD (0-10 VDC OUTPUT)
ANALOG INPUT JUMPER SETTINGS
MUST BE SET AS SHOWN FOR
PROPER OPERATION 24 VAC POWER ONLY WARNING! POLARITY MUST BE OBSERVED OR THE CONTROLLER WILL BE DAMAGED
AI1
AI2
AI3
AI4
THERM
THERM
THERM
THERM
THERM
THERM
4-20mA
4-20mA
4-20mA
4-20mA
4-20mA
4-20mA
0-10V
0-10V
0-10V
0-10V
0-10V
0-10V
0-5V
0-5V
0-5V
0-5V
0-5V
0-5V
AI5
AI7
ANALOG INPUT JUMPER
SETTINGS
E-BUS CONNECTOR
WattMaster Label
#LB102060-01-A
Rev.: 1A
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC RS-485 COMMUNICATION LOOP. WIRE
“R” TO “R”, “T” TO “T” “SHLD” TO “SHLD”
FAN
RELAY 2
RELAY 3
RELAY 4
RELAY 5
RELAY
COMMON
SA CONTROLLER E-BUS
Orion No.:OE332-23E-VCMX-SA
AAON No.:
V07160