Alpha Technologies AlphaGen PN-6x-T 7.5kW 48VDC - Technical Manual - Manual (Page 68)

68 042-288-B0-001, Rev. A
4.0 The Engine Control Module, continued
4.10 ECM Self-test, continued
The following programmable, internal ECM variables control automatic self-tests.
• Autotest Interval: The number of days between automatic tests.
• Autotest Countdown:
• Autotest Duration: Each Autotest is measured in minutes. The test duration is 10
minutes.
Manually Enabling the Autotest Feature:
Use SW5-8 to enable the Autotest feature with a 14-day test interval. The fi rst autotest begins
14 days from the time the ECM is powered up with the confi guration switch changed from 0 to
1 (OFF to ON). To disable the autotest sequence, put SW5-8 in the OFF position and restart
the ECM. On power up, the ECM looks for a change in the switch position before it changes
the test control parameters.
1. Go to the site on the day of the week and time of day you want the self-test to occur.
2. Disconnect and remove the ECM.
3. Turn OFF SW5-8.
4. Install and re-power the ECM briefl y (15 second minimum powerup time). If AC is
present, this can be done by connecting J6 (AC line, the 2-position mate-n-lock plug at
the bottom of the ECM). Disconnect and remove the ECM (again).
5. Turn ON SW5-8.
6. Reinstall the ECM with all connectors.
The self-test will occur 14 days from the time the ECM is powered.
4.11 Maintenance Functions
The ECM monitors time between periodic maintenance of the engine-generator. The service
interval is the number of hours of engine runtime between servicing. When the engine
runtime is equal to service interval, the ECM activates the Service Required notifi cation and
turns on the amber notifi cation LED. The default value of Service Interval is 100 hours, and
can be programmed from 0 to 250.
Service Due is the number of engine runtime hours before the next periodic maintenance is
required. Pressing and holding the Service Reset switch for fi ve seconds resets the service
counter and it is updated with the current value of the service interval.