System information

G2T Programmers Guide Rev-A 17-Nov-2014
94
10.1.2. Power Supply
Four (4) bi-color LED indicators are located on each plug-in power
supply assembly. The indicators are driven by the built-in power
supply monitoring CPU. If the power supply configuration is
redundant, the supply voltage LED’s will come on RED without the
power supply’s power switch being “ON”. The power supply
monitoring CPU receives power from the other power supply.
 WARNING: High voltage is present at the power supplies. Never open a
power supply while the system is powered ON. Failure to observe this
WARNING could result in severe injury or death.
The power supply AC power switch is LED illuminated.
Most power supply units have three (3) DC sections, while others
have only two (2) sections. If the power supply does not include a
third DC section (V3), the LED will be off.
Below is the definition of the indicator colors.
Designation
Status Function
GREEN
RED
V1
VCC Power Section
Pass
Failure
V2
VDD Power Section
Pass
Failure
V3
VEE Power Section
Pass
Failure
Temp
High temp indication
Temp okay
Temp High
If there is out-of-range DC output on the V1, V2 or V3 power
supply, the LED combination of RED (failure) and GREEN (pass) for
the power supply LED displays ORANGE.
 CAUTION: The system is configured with particular power supplies that
are not interchangeable with other models. Always replace power
supplies with the same model number. Failure to observe this CAUTION
could result in damage to equipment.