GFK-2571A
Chapter 2 Installation
2-5
2
Hot Insertion and Removal
Modules in a Universal Backplane can be installed or removed while power is applied to the system.
This includes backplane power and field power supplied to the module.
The PNC must be properly seated with the latch engaged and all pins connected within 2 seconds.
For removal, the module must be completely disengaged within 2 seconds. It is important that the
module not remain partially inserted during the insertion or removal process. There must be at a
minimum of two seconds between the removal and insertion of modules.
Warnings
Inserting or removing a module with power applied to the system may cause
an electrical arc. This can result in unexpected and potentially dangerous
action by field devices. Arcing is an explosion risk in hazardous locations. Be
sure that the area is non-hazardous or remove system power appropriately
before removing or inserting a module.
If the surrounding air operating temperature of the PNC module is greater than
40°C (104°F), SFP devices could have operating temperatures over 70°C
(158°F). Under these conditions, for your safety, do
not
use bare hands to
remove an SFP device from the SFP cage. Use protective gloves or a tool
(needle-nose pliers) to avoid handling the hot SFP device directly when
removing the SFP device.
Caution
If an RX3i PROFINET Controller is extracted from a powered RX3i backplane, it
loses power immediately, which may result in data loss. Do not remove or
insert the device while downloading hardware configuration to the system.
When the module is plugged back into a powered backplane, the PNC restores
data from the internal non-volatile memory. If however, the RX3i CPU has
configuration data for the PROFINET Controller, it re-delivers the data to the
module, superseding parameters previously stored in non-volatile memory.
Fault Notifications
Removing a PROFINET Controller causes a Loss of IOC fault in the RX3i CPU
’s I/O fault table and
inserting a PROFINET Controller causes an Addition of IOC fault in the I/O Fault table.
