220Vac 60Hz
Figure 5: Wiring diagram flexible function PCB (W)
SWFC CONTROL SPECIFICATIONS - FLEXIBLE FUNCTION PCB (W)
CONTROL SPECIFICATIONS
Table 5: I/O port definitions
ONBOARD CONFIGURATIONS
There is 1 DIP switch set on the PCB:
DIPB (8 positions)
•
SW1: configured for different modulating signal
•
SW2 – SW4: brushless DC fan motor configuration.
•
SW5 – SW8: Reserved
Table 6: Onboard configurations
Model
SW2
SW3
SW4
High
Medium
Low
SWC-4
0
0
0
700
600
500
SWC-18
1
0
0
1300
1100
900
SWC-30
1
1
1
1350
1200
900
Default RPM
1
1
1
Set by customer requirement
I/O Port
Code
2-Pipe
Analog Input
Chilled water sensor
AI1
Coil sensor (Ti1)
Power Input
High speed
Hi
24VAC input signals from wired thermostat
Medium speed
Med
Low speed
Lo
EH signal
CN4
Phase
L
220V/1Ph/60Hz
Neutral
N
Earth
GND
Signal Input
0-10VDC
Signal
0-10VDC, SW1=1
Digital Input
Wired wall pad
TTL
Adjust EC motor RPM
Output
EC motor
CN3
EC motor output
Stepping motor
CN1, CN2
Stepping motor output
Electric Heater Signal
CN5
When EH signal input is powered on and EC motor RPM>500RPM,
EH output is turned on.
LED Display
X-DIS
LED Display signal
Code
State
Description
S1
0
PCB configured for 0-5VDC modualting signal input.
1
PCB configured for 0-10VDC modulating signal input.
1 7
1 6
