Rockwell Automation 1606-XLP XM Electronic Overspeed Detection System - Manual (Page 44)

Publication GMSI10-UM015B-EN-E - June 2011
44 Installing the XM Electronic Overspeed Detection System
Basic Operations Powering Up the Modules
Both the XM-220 and the XM-442 perform a self-test at power-up.
XM-442 Self-Test
The XM-442 self-test includes an LED test. When power is applied to the
module, the following occurs.
• Module Status (MS) indicator lights red for 1 to 2 seconds and then
turns green if it has passed the self-test.
• Shutdown and Alarm Status indicators light red for 1 to 2 seconds and
then turn off if no shutdown or alarm conditions are present; otherwise,
they will stay lit.
XM-220 Self-Test
The XM-220 self-test includes an LED test and a device test. During the LED
test, the indicators will be turned on independently and in sequence for
approximately 0.25 seconds.
The device test occurs after the LED test. The Module Status (MS) indicator is
used to indicate the status of the device self-test.
Refer to LED Indicators on page 41 for more information about the LED
indicators.
MS Indicator State Description
Flashing Red and Green Device self-test is in progress.
Solid Green or Flashing Green Device self-test completed successfully,
and the firmware is valid and running.
Flashing Red Device self-test completed, the hardware is
OK, but the firmware is invalid. Or, the
firmware download is in progress.
Solid Red Unrecoverable fault, hardware failure, or
Boot Loader program may be corrupted.