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GEH-6385 Reference and Troubleshooting, 2300 V Drives Chapter 2 Faults and Troubleshooting
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2-37
No. Name Type Description
162
LAN watchdog
alarm
Alarm
The LAN watchdog alarm occurs when the connection between DSPX and the
Application/LAN interface becomes invalid. This includes one of the following
conditions, depending upon the selection of Network interface:
The Application/LAN interface Dual-Port RAM watchdog stops.
The ISBus frames stop.
The alarm is declared after the condition persists for several hundred
microseconds.
163
Restrictd fcn
enabld
Alarm
The Restrictd fcn enabld alarm occurs when the selected execution time base
in the parameter Exec time/Chop freq restricts certain drive functionality due to
timing limitations, or the ISBus network is selected by the Network interface
parameter and the DSPX hardware does not support ISBus. Certain functions
that are presently enabled will not run.
Possible configuration faults:
Execution time base is too low. Select alternate time base in parameter Exec
time/Chop freq.
LAN is enabled, but will not operate. Disable LAN by setting parameter
Network interface to None.
ISBus is selected, but will not operate. Deselect ISBus by setting parameter
Network interface, or replace the DSPX HIA with a DSPX H1B.
164 LAN heartbeat trip Trip The LAN heartbeat trip occurs when all of the following conditions are present:
Non-zero value is entered in Parameter LAN heartbeat time.
The signal (Heartbeat ref, lan) fails to transition within in that time.
The trip behavior is enabled by Parameter LAN trips inhibit.
The LAN connection ok condition was previously detected.
165
LAN heartbeat
alarm
Alarm
The LAN heartbeat alarm occurs when all of the following conditions are
present:
Non-zero value is entered in Parameter LAN heartbeat time.
The signal (Heartbeat ref, lan) fails to transition within in that time.
Either the trip behavior is inhibited by Parameter LAN trips inhibit, or the trip
behavior is enabled but the LAN connection ok condition was not previously
detected.
166
Requird Parm
Missing
Trip
The Requird Parm Missing trip fault occurs when one of the required
parameters either is not entered, “No Value” or has a value of zero. Check the
following values, which can be found in the commissioning wizard.
Primary causes:
Motor rated voltage, Not entered
Motor rated freq, Not entered
Motor rated current, Not entered
Motor rated rpm, Not entered
Motor rated power, Not entered
Motor service factor, Not entered
167 Version mismatch Trip The Version mismatch trip fault occurs at initialization when the drive pattern
detects a product or version mismatch with the parameters stored in non-
volatile RAM. Download parameters to fix.
168 System ISBus error Alarm The System ISBus error alarm occurs when an ISBus fault is detected in the
DSPX control. The variable Sys ISBus error reg contains the bit-coded value
of the last ISBus fault detected; each bit indicates a particular ISBus fault seen
by the control. The variable Sys ISBus error cnt increments upon fault
detection.
Record the value of Sys ISBus error reg to assist factory troubleshooting
efforts. Monitor the progression of Sys ISBus error cnt to obtain an indication
of the rate of occurrence of fault conditions.
Transient occurrence of this alarm upon initialization of the interface is
expected.