Operating instructions

16
Table 8 — Fan Board A Outputs (30XA080-122)
*Output only on low ambient temperature head pressure control (AUX1).
Table 9 — Fan Board X Outputs (30XA140-352)
*Output only on units with low ambient temperature head pressure control installed (AUX1).
NOTES:
1. Fan Board B used on 30XA140-350.
2. “X” indicates circuit A or circuit B.
3. See page 109, Fig. 65 for which contactor is used with circuit A
or B.
DESCRIPTION INPUT/OUTPUT I/O TYPE DISPLAY MODULE POINT NAME
CONNECTION POINT
Pin Notation
Power (24 vac supply) —— —
FBA-J1
11 24 vac
12 Ground
Local Equipment Network —— —
FBA-J9
+ RS485 Port (D+)
G RS485 Port (Gnd)
-RS485 Port (D-)
+ RS485 Port (D+)
G RS485 Port (Gnd)
-RS485 Port (D-)
Circuit A Low Ambient Temperature
Head Pressure Control Speed Signal
MM-A* 0-10 VDC Head Press Actuator Pos, SPD.A
FBA-CH9
+ Signal
- Ground
Circuit B Low Ambient Temperature
Head Pressure Control Speed Signal
MM-B* 0-10 VDC Head Press Actuator Pos, SPD.B
FBA-CH10
+ Signal
- Ground
Fan Contactor A1 FCA1 Contactor FBA-J2-CH1
Fan Contactor A2 FCA2 Contactor FBA-J2-CH2
Fan Contactor A3 FCA3 Contactor FBA-J2-CH3
Fan Contactor A4 FCA4 Contactor
FBA-J2-CH4
(090-122)
Fan Contactor B1 FCB1 Contactor FBA-J3-CH5
Fan Contactor B2 FCB2 Contactor FBA-J3-CH6
Fan Contactor B3 FCB3 Contactor FBA-J3-CH7
Fan Contactor B4 FCB4 Contactor
FBA-J3-CH8
(090-122)
DESCRIPTION INPUT/OUTPUT I/O TYPE DISPLAY MODULE POINT NAME
CONNECTION POINT
Pin Notation
Power (24 vac supply) —— —
FBX-J1
11 24 vac
12 Ground
Local Equipment Network —— —
FBX-J9
+ RS485 Port (D+)
G RS485 Port (Gnd)
- RS485 Port (D-)
+ RS485 Port (D+)
G RS485 Port (Gnd)
- RS485 Port (D-)
Circuit X Low Ambient Temperature
Head Pressure Control
Speed Signal
MM-n* 0-10 VDC Head Press Actuator Pos, SPD.X
FBX-CH9
+ Signal
- Ground
Fan Contactor X1 FCX1 Contactor FBX-J2-CH01
Fan Contactor X2 FCX2 Contactor FBX-J2-CH02
Fan Contactor X3 FCX3 Contactor FBX-J2-CH03
Fan Contactor X4 FCX4 Contactor FBX-J2-CH04
Fan Contactor X5 FCX5 Contactor FBX-J3-CH05
Fan Contactor X6 FCX6 Contactor FBX-J3-CH06
Fan Contactor X7
FCX7 Contactor FBX-J3-CH07
Fan Contactor X8 FCX8 Contactor FBX-J3-CH08