Advanced Energy MDX II User Manual page 191

Table 8-2. Panel LEDs and Fault Messages (Continued)
Problem Indicators
Passive Control Panel Fault
Panel LED On
n/a "Stuck Pushbutton"
n/a "Timers Active"
n/a "Unassigned Interrupt
Has Occurred"
n/a "Profibus WD Timer
Expired"
5700262-R
Message
One (or more)
control panel
switches is stuck.
Program source is
set to internal for the
control mode
selected, and a recipe
has been
programmed.
The fault message
replaces the display
line that allows you
to specify a manual
setpoint. If you
disable all
programmed ramp/
run steps, the
"Timers Active"
message will be
replaced with the
programmed
setpoint.
Potential hardware
problem
The Profibus master
stopped talking to the
MDXII unit after
establishing
communications.
Troubleshooting and Customer Support
Explanation Suggested Action
Push each switch to
verify the error and/or to
identify the problem
button.
After you correct the
condition, press the
STOP switch to clear the
fault message.
Verify that you have
selected the correct
control mode and
whether an internal or
external setpoint is
appropriate for the
selected control mode.
See "Program Source" on
page 5-16 for more
information.
Press the STOP switch to
clear the fault message.
Cycle power to the unit.
If the message persists,
call AE Customer
Support.
Have the Profibus mas-
ter re-establish communi-
cations.
Send a "master reset" to
clear the MDXII unit's
display.
MDXII Power Supplies
8-11