Understanding module status using the ok indicator – Rockwell Automation 1756-M02AE Analog Encoder (AE) Servo Module Installation Instructions User Manual
Page 26

26 Analog Encoder (AE) Servo Module
Publication 1756-IN047D-EN-P - March 2001
Figure 23 1756-M02AE Module LEDs
During power up, the module completes an indicator test. The OK indicator
turns red for 1 second and then turns to flashing green if the module passes
all its self tests.
This completes the installation of the module.
Understanding Module Status Using the OK Indicator
If the OK LED
displays:
Then the module status
is:
Take this action:
Off
The module is not operating.
• Apply chassis power.
• Verify the module is completely
inserted into the chassis and
backplane.
Flashing green
light
The module has passed
internal diagnostics, but it is
not communicating axis
data over the backplane.
• None, if you have not
configured the module.
• If you have configured the
module, check the slot number
in the 1756-M02AE Properties
dialog box.
CH 0
CH 1
FDBK
DRIVE
OK
2 AXIS SERVO
FDBK
DRIVE