Emerson Rosemount 700XA, Reference Manual

Page: 195 / 294

The input range for an AC power supply is 90 to 264 volts (auto-ranging).
6.10 Voltage LEDs
A set of LEDs can be found above the test points .
These LEDs are a quick way to visually inspect the voltage status of some of the gas
chromatograph's (GC's) electrical components.
Figure 6-2: Voltage LEDs
The following LEDs are associated with the following GC components:
VIN (fuse open) Glows red when the fuse has blown or been removed;
otherwise, it is not lit.
1 RTN - 24 loop
(Power) Glows when the power supply for the analog outputs is
functioning properly; otherwise it is not lit.
24V regulated (GC
power) Glows when the GC power is functioning properly;
otherwise, it is not lit.
17V (Input for the
preamp) Glows when the power supply for the preamp is
functioning properly; otherwise, it is not lit.
12V (Input for the
I/O cards0 Glows when thee optional ROC expansion card's power
supply is functioning properly; otherwise, it is not lit.
5V1 Glows when the system chip's 5.1 V power supply is
functioning properly; otherwise, it is not lit.
3V4 Glows when the 3.4 V power supply for the system chips
is functioning properly; otherwise, it is not lit.
Power ON Glows when the GC is on; otherwise, it is not lit.
Reference Manual Troubleshooting
2-3-9000-744 June 2022
Rosemount 700XA 195