Johnson Controls Frick vyper VYA PG -46 Service Manual page 46

S100-200 IOM (MAY 08)
Page 46
The callouts on Figures 56 and 57 point
out components, indicators and test points
that can be used to aid in maintenance
amd troubleshooting of fault codes.
1. DC Voltage Test Points
2. 24VAC Input
3. Gate Drive Connections J8, J9 & J10
4. J12 Start Input / Run Output
5. J6 to J4 of the SCR Trigger Board
6. E-prom Chips
7. Communication Indicators RX/TX, Logic
Board to Quantum LX
8. J16 Communications Cable, Logic
Board to Quantum LX
9. Communications Indicators RX/TX,
Logic Board to Filter Board
10. J15 Communications Cable, Logic
Board to Filter Board.
11. DC Bus Voltage Input
12. J2 Remove to manually engage circula-
tion pumps and internal fans
13. JOB FLA Potentiometer
14. Frequency Switch (60/50Hz)
15. Output Current input, Phase - A, B & C
Figure 56 - Control Logic Board
1. J5 Connector (volt-
age input / test points
2. J8 Communications
to the logic board
(J15)
3. Power Supply "OK"
LED
4. Filter "Over-Temp"
LED
5. Run LED
6. Filter ON/OFF switch
7. E-prom
Figure 57 - Filter Logic
Board
VYPER VARIABLE SPEED DRIVE
™
MAINTENANCE