Rockwell Automation SD3100 DISTRIB PWR SYS SD3100 DC PWR MODULE - Manual (Page 46)

4-4 SD3100 Power Modules
4.2.2.3 Synchronization Loss Fault Avoided Warning (Bit 3)
The system has continued to operate through a temporary loss of AC line voltage. If
the AC line voltage is missing for more than 2 seconds, the system will immediately go
idle and set bit 3 in register 202/1202 (AC Line Synchronization fault).
4.2.2.4 Current Reference Limit Warning (Bit 4)
The current reference has exceeded the value entered as the Max Current Limit
configuration parameter.
4.2.2.5 Identification Test Error Warning (Bit 5)
An armature identification or field identification test has failed. (This bit is also set
when the resolver balance calibration test fails or yields unexpected results.)
4.2.2.6 Field Power Module Overcurrent Warning (Bit 6)
The Field Power Module’s field current feedback value is greater than 1.5 times the
Hot Field Amps parameter for one second. This condition can cause errors during the
field ID test or when the field is turned on. These errors can be caused by miswiring of
the L1 and L3 AC input lines to the Field Power Module.
4.2.2.7 Fan Loss Warning (Bit 12)
A fan loss is detected by the air flow switch located in the PMI power supply module.
Normally, the drive should be stopped in a reasonably short time by the application
task to prevent damage to the unit. Check that the fan is running and that the air
passages are clear and clean.
4.3 Component Replacement
SD3100 Power Modules have a modular design that permits fast and easy component
replacement. Spare parts kits are provided for armature power structure components.
The regulator assembly is serviced by replacing a damaged module in the rack or by
replacing the entire rack.
4.3.1 Spare Parts Kits
Spare parts kits for AC line input and armature power structure components of the
SD3100 drive are listed in Appendix C. These spare parts kits contain the
replacement parts as well as installation instructions. Kits for the following
components are available:
• Line RC suppressor option
• Air flow printed circuit board with power supply
• Air flow switches
• Line MOVs
• Armature assemblies
• Armature SCRs