Table of Contents
Advertisement
Aotewell Ltd industry-mall.net
General
Hard Faults
www.aotewell.com
Malfunctions with Indications
Most malfunctions that occur induce a fault response from the 1395 drive.
This aids greatly in determining what malfunction has occurred. By
recording all of the faults indicated by the 1395 and using the
accompanying information, most problems can be corrected. The 1395
employs extensive diagnostics which monitor both internal and external
operating conditions and responds to incorrect conditions as programmed
by the user.
A Hard Fault is the highest priority fault which indicates a condition in
which the 1395 has detected an internal malfunction and has determined
that operation can no longer continue. This type of fault indicates that a
major internal component or system has malfunctioned and that control of
the drive functions may be lost. The response of the drive to a Hard Fault is
a coast stop or whenever possible, a controlled motor stop.
A rotating motor will stop according to the Torque Mode commanded. The
following is an example of the action that will occur based on the value of
Parameter 625 "Torque Mode"
1. If Parameter 625 = 0 (Zero Torque) the drive will immediately phase
back the armature bridge and open the DC contactor.
2. If Parameter 625 = 1 (Velocity Regulate) the Drive will ramp the motor
velocity to zero and then open the contactor.
3. If Parameter 625 = 2 (External Torque Regulate) the Drive will
immediately phase back the armature bridge and open the DC contactor.
4. If Parameter 625 = 3 (Min Select) the Drive will immediately phase back
the armature bridge and open the DC contactor.
5. If Parameter 625 = 4 (Max Select) the Drive will immediately phase
back the armature bridge and open the DC contactor.
6. If Parameter 625 = 5 (Load Response) the Drive will immediately phase
back the armature bridge and open the DC contactor.
When a Hard Fault has occurred, fault recovery can only be accomplished
by initiating a system RESET or cycling AC line power. Examples of Hard
Faults include:
Handshake Fault - A fault between processors that indicate communication
or functionality was lost by one, or both processors.
Internal Memory Fault - A fault detected by a processor that indicates a
component malfunction.
www.aotewell.com
sales@aotewell.com
2
Chapter
Hide quick links:
Advertisement
Table of Contents
