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Power phase loss fault, Sercos fault, Module fault bit attributes – Rockwell Automation 1784-PM16SE SoftLogix Motion Card Setup and Configuration Manual User Manual

Page 373

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Publication 1784-UM003A-EN-P – June 2003

Motion Object Attributes 365

Power Phase Loss Fault

The Power Phase Loss Fault bit is set when the drive detects that one or more
of the three power line phases is lost from the 3 phase power inputs.

SERCOS Fault

The SERCOS Fault bit is set when either a requested SERCOS procedure fails
to execute properly or the associated drive node has detected a SERCOS
communication fault.

Module Fault Bit Attributes

The Module Fault Bit attribute is a collection of all faults that have module
scope as opposed to axis scope. Generally, a these module faults are reflected
by all axes supported by the associated SERCOS module.

Module Fault attribute information is passed from a physical module or device
to the controller via an 8-bit value contained in the in the header of the
Synchronous Input connection assembly. Thus, these fault bits are updated
every coarse update period by the Motion Task. The module’s map driver
should also monitor module Faults so module fault conditions can be reflected
to the user through the Module Properties dialog.

All of the fault bit attributes defined below can be handled by the
ControlLogix processor as a Major Fault by configuring the associated Group
Object’s “General Fault Type Mechanism” attribute accordingly. Otherwise
any specific fault handling must be done as part of the user program.

GSV/SSV Access

Attribute Name

Data Type

Values

GSV

Module Fault Bits

DINT

Direct Access
Entire DINT - ModuleFaults
0: Control Sync Fault
-ControlSyncFault
1: Module Sync Fault
-ModuleSyncFault
2: Timer Event Fault
-TimerEventFault
3: Module Hardware Fault
-ModuleHardwareFault
4: SERCOS Communications Fault
-SERCOSRingFault
5-31: Reserved

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