Profinet Scanner Power-Up And Restart - GE VersaMax GFK-2721A Manual

2
Swapping a Redundant Power Supply
If two power supplies are installed on the PROFINET Scanner and the power sources to both
can be turned off independently, either one can be removed or replaced without disrupting
system operation.
1. Check the PWR LEDs on the PROFINET Scanner to be sure that the module that is not
being removed is currently supplying power.
2. Turn off the power source of the power supply module that will be removed.
3. Wait until the PWR LED for the module that is being removed goes off.
4. Remove the power supply as described above.
Do not attempt to do this if there is only one power supply, or if there are two power supplies
with the same power source, requiring both to be powered down. Otherwise, the PROFINET
Scanner may lose power and turn off.

PROFINET Scanner Power-up and Restart

When power is applied to the PROFINET Scanner, it loads a firmware image. The PWR1 and/or
PWR2 LEDs are green and steadily ON.
During the power-up/reset process, the module runs diagnostics and initializes its hardware
components.
After completing power-up sequence, the OK LED changes to green, steadily ON. If a fatal error
occurs during powerup, the LED blinks instead.
If the module encounters a hardware failure, invalid firmware image, or the powerup diagnostics
fail, the module will not become operational or may enter firmware update mode. Cycling power
to the module may restore operation. If not, the module should be returned to GE Intelligent
Platforms.
VersaMax PROFINET Scanner Manual – December 2013
2-8 GFK-2721A