GE Medium Voltage GP Type G Drives LAN watchdog, Restrictd fcn, Enabld, Time/Chop freq, Missing

No.	Name	Type	Description
162	LAN watchdog	Alarm	The LAN watchdog alarm occurs when the connection between DSPX and the
	alarm		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	Alarm	The Restrictd fcn enabld alarm occurs when the selected execution time base
	enabld		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	The LAN heartbeat alarm occurs when all of the following conditions are
	alarm		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	Trip	The Requird Parm Missing trip fault occurs when one of the required
	Missing		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.

GEH-6385 Reference and Troubleshooting, 2300 V Drives Chapter 2 Faults and Troubleshooting • 2-37