Protection
Protection Part Operation
2 - 60
SKF Multilog On-Line System IMx-M
User Manual
Rack Disarm
Rack disarm affects the entire rack.
Rack disarm can be set through rack disarm input on the rear panel of a protection
module (labeled as "Disarm"). The location of a rack disarm input is shown in
section . Impact on slot level is same as for slot disarm. Note that
functionally, setting all slots individually in (slot) disarm is the same as a rack disarm.
Release of Rack/Slot Disarm after Configuration
After a configuration, rack/slot disarm may be released (hence armed) only after
the system startup.
The system startup takes about 30 seconds and is indicated by LED System status
with green fast flash.
Important - A premature release of rack/slot disarm may cause a missing or
invalid configuration which results in MCU slaves not getting the new configuration
and system will then indicate a circuit fault.
Important - Disarm must not be released until the rack/protection module and
the associated relay module are running with a proper firmware. Be sure to read
"
" chapter thoroughly and understand it.
Important - Rack/protection module and the associated relay module must be
properly configured before disarm is released after each configuration update. Be
sure to read "
" chapter thoroughly and understand it. Evaluate circuit faults
with diagnostic command "cf" as described in "
" chapter.
Important - Evaluate channel alarms before disarm is released to avoid
unwanted alert/danger alarms triggered upon arm of the channel or rack.
Protection Configuration Update
Protection module configuration update is done by downloading a configuration file to a
protection module via the application tool IMx-M Manager or via @ptitude Observer
with Ethernet connection.
Configuration file is a .bin file generated by the IMx-M Manager application tool.
In order to download a configuration file to a protection module refer to
Send PRM
Configuration
